diff options
Diffstat (limited to 'drivers')
58 files changed, 1144 insertions, 807 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 673bafb8be58..913948876c93 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -1790,9 +1790,11 @@ config GPIO_LATCH connected to other GPIOs. config GPIO_MOCKUP - tristate "GPIO Testing Driver" + tristate "GPIO Testing Driver (DEPRECATED)" select IRQ_SIM help + This module is DEPRECATED. Please consider using gpio-sim instead. + This enables GPIO Testing driver, which provides a way to test GPIO subsystem through sysfs (or char device) and debugfs. User could use it through the script in diff --git a/drivers/gpio/gpio-altera.c b/drivers/gpio/gpio-altera.c index 54d7c450c596..c2edfbb231fc 100644 --- a/drivers/gpio/gpio-altera.c +++ b/drivers/gpio/gpio-altera.c @@ -317,13 +317,11 @@ skip_irq: return 0; } -static int altera_gpio_remove(struct platform_device *pdev) +static void altera_gpio_remove(struct platform_device *pdev) { struct altera_gpio_chip *altera_gc = platform_get_drvdata(pdev); of_mm_gpiochip_remove(&altera_gc->mmchip); - - return 0; } static const struct of_device_id altera_gpio_of_match[] = { @@ -338,7 +336,7 @@ static struct platform_driver altera_gpio_driver = { .of_match_table = altera_gpio_of_match, }, .probe = altera_gpio_probe, - .remove = altera_gpio_remove, + .remove_new = altera_gpio_remove, }; static int __init altera_gpio_init(void) diff --git a/drivers/gpio/gpio-amdpt.c b/drivers/gpio/gpio-amdpt.c index 07c6d090058d..0a2ea9db4682 100644 --- a/drivers/gpio/gpio-amdpt.c +++ b/drivers/gpio/gpio-amdpt.c @@ -122,13 +122,11 @@ static int pt_gpio_probe(struct platform_device *pdev) return ret; } -static int pt_gpio_remove(struct platform_device *pdev) +static void pt_gpio_remove(struct platform_device *pdev) { struct pt_gpio_chip *pt_gpio = platform_get_drvdata(pdev); gpiochip_remove(&pt_gpio->gc); - - return 0; } static const struct acpi_device_id pt_gpio_acpi_match[] = { @@ -145,7 +143,7 @@ static struct platform_driver pt_gpio_driver = { .acpi_match_table = ACPI_PTR(pt_gpio_acpi_match), }, .probe = pt_gpio_probe, - .remove = pt_gpio_remove, + .remove_new = pt_gpio_remove, }; module_platform_driver(pt_gpio_driver); diff --git a/drivers/gpio/gpio-brcmstb.c b/drivers/gpio/gpio-brcmstb.c index bccdbfd5ec80..a789af4a5c85 100644 --- a/drivers/gpio/gpio-brcmstb.c +++ b/drivers/gpio/gpio-brcmstb.c @@ -371,7 +371,7 @@ static int brcmstb_gpio_sanity_check_banks(struct device *dev, } } -static int brcmstb_gpio_remove(struct platform_device *pdev) +static void brcmstb_gpio_remove(struct platform_device *pdev) { struct brcmstb_gpio_priv *priv = platform_get_drvdata(pdev); struct brcmstb_gpio_bank *bank; @@ -395,8 +395,6 @@ static int brcmstb_gpio_remove(struct platform_device *pdev) */ list_for_each_entry(bank, &priv->bank_list, node) gpiochip_remove(&bank->gc); - - return 0; } static int brcmstb_gpio_of_xlate(struct gpio_chip *gc, @@ -757,7 +755,7 @@ static struct platform_driver brcmstb_gpio_driver = { .pm = &brcmstb_gpio_pm_ops, }, .probe = brcmstb_gpio_probe, - .remove = brcmstb_gpio_remove, + .remove_new = brcmstb_gpio_remove, .shutdown = brcmstb_gpio_shutdown, }; module_platform_driver(brcmstb_gpio_driver); diff --git a/drivers/gpio/gpio-cadence.c b/drivers/gpio/gpio-cadence.c index 3720b90cad10..6a439cf78459 100644 --- a/drivers/gpio/gpio-cadence.c +++ b/drivers/gpio/gpio-cadence.c @@ -268,14 +268,12 @@ err_revert_dir: return ret; } -static int cdns_gpio_remove(struct platform_device *pdev) +static void cdns_gpio_remove(struct platform_device *pdev) { struct cdns_gpio_chip *cgpio = platform_get_drvdata(pdev); iowrite32(cgpio->bypass_orig, cgpio->regs + CDNS_GPIO_BYPASS_MODE); clk_disable_unprepare(cgpio->pclk); - - return 0; } static const struct of_device_id cdns_of_ids[] = { @@ -290,7 +288,7 @@ static struct platform_driver cdns_gpio_driver = { .of_match_table = cdns_of_ids, }, .probe = cdns_gpio_probe, - .remove = cdns_gpio_remove, + .remove_new = cdns_gpio_remove, }; module_platform_driver(cdns_gpio_driver); diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c index 8db5717bdabe..bb499e362912 100644 --- a/drivers/gpio/gpio-davinci.c +++ b/drivers/gpio/gpio-davinci.c @@ -16,10 +16,10 @@ #include <linux/irqdomain.h> #include <linux/module.h> #include <linux/of.h> -#include <linux/of_device.h> #include <linux/pinctrl/consumer.h> #include <linux/platform_device.h> #include <linux/platform_data/gpio-davinci.h> +#include <linux/property.h> #include <linux/irqchip/chained_irq.h> #include <linux/spinlock.h> #include <linux/pm_runtime.h> @@ -486,7 +486,6 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev) struct davinci_gpio_platform_data *pdata = dev->platform_data; struct davinci_gpio_regs __iomem *g; struct irq_domain *irq_domain = NULL; - const struct of_device_id *match; struct irq_chip *irq_chip; struct davinci_gpio_irq_data *irqdata; gpio_get_irq_chip_cb_t gpio_get_irq_chip; @@ -495,10 +494,8 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev) * Use davinci_gpio_get_irq_chip by default to handle non DT cases */ gpio_get_irq_chip = davinci_gpio_get_irq_chip; - match = of_match_device(of_match_ptr(davinci_gpio_ids), - dev); - if (match) - gpio_get_irq_chip = (gpio_get_irq_chip_cb_t)match->data; + if (dev->of_node) + gpio_get_irq_chip = (gpio_get_irq_chip_cb_t)device_get_match_data(dev); ngpio = pdata->ngpio; diff --git a/drivers/gpio/gpio-dln2.c b/drivers/gpio/gpio-dln2.c index 71fa437b491f..7ead1f51128a 100644 --- a/drivers/gpio/gpio-dln2.c +++ b/drivers/gpio/gpio-dln2.c @@ -504,17 +504,15 @@ static int dln2_gpio_probe(struct platform_device *pdev) return 0; } -static int dln2_gpio_remove(struct platform_device *pdev) +static void dln2_gpio_remove(struct platform_device *pdev) { dln2_unregister_event_cb(pdev, DLN2_GPIO_CONDITION_MET_EV); - - return 0; } static struct platform_driver dln2_gpio_driver = { .driver.name = "dln2-gpio", .probe = dln2_gpio_probe, - .remove = dln2_gpio_remove, + .remove_new = dln2_gpio_remove, }; module_platform_driver(dln2_gpio_driver); diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c index c22fcaa44a61..4a4f61bf6c58 100644 --- a/drivers/gpio/gpio-dwapb.c +++ b/drivers/gpio/gpio-dwapb.c @@ -21,7 +21,6 @@ #include <linux/slab.h> #include <linux/spinlock.h> -#include "gpiolib.h" #include "gpiolib-acpi.h" #define GPIO_SWPORTA_DR 0x00 diff --git a/drivers/gpio/gpio-eic-sprd.c b/drivers/gpio/gpio-eic-sprd.c index 5320cf1de89c..be7f2fa5aa7b 100644 --- a/drivers/gpio/gpio-eic-sprd.c +++ b/drivers/gpio/gpio-eic-sprd.c @@ -9,6 +9,7 @@ #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/module.h> +#include <linux/notifier.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/spinlock.h> @@ -91,12 +92,20 @@ enum sprd_eic_type { struct sprd_eic { struct gpio_chip chip; + struct notifier_block irq_nb; void __iomem *base[SPRD_EIC_MAX_BANK]; enum sprd_eic_type type; spinlock_t lock; int irq; }; +static ATOMIC_NOTIFIER_HEAD(sprd_eic_irq_notifier); + +static struct sprd_eic *to_sprd_eic(struct notifier_block *nb) +{ + return container_of(nb, struct sprd_eic, irq_nb); +} + struct sprd_eic_variant_data { enum sprd_eic_type type; u32 num_eics; @@ -494,13 +503,6 @@ retry: sprd_eic_irq_unmask(data); } -static int sprd_eic_match_chip_by_type(struct gpio_chip *chip, void *data) -{ - enum sprd_eic_type type = *(enum sprd_eic_type *)data; - - return !strcmp(chip->label, sprd_eic_label_name[type]); -} - static void sprd_eic_handle_one_type(struct gpio_chip *chip) { struct sprd_eic *sprd_eic = gpiochip_get_data(chip); @@ -546,27 +548,29 @@ static void sprd_eic_handle_one_type(struct gpio_chip *chip) static void sprd_eic_irq_handler(struct irq_desc *desc) { struct irq_chip *ic = irq_desc_get_chip(desc); - struct gpio_chip *chip; - enum sprd_eic_type type; chained_irq_enter(ic, desc); /* * Since the digital-chip EIC 4 sub-modules (debounce, latch, async - * and sync) share one same interrupt line, we should iterate each - * EIC module to check if there are EIC interrupts were triggered. + * and sync) share one same interrupt line, we should notify all of + * them to let them check if there are EIC interrupts were triggered. */ - for (type = SPRD_EIC_DEBOUNCE; type < SPRD_EIC_MAX; type++) { - chip = gpiochip_find(&type, sprd_eic_match_chip_by_type); - if (!chip) - continue; - - sprd_eic_handle_one_type(chip); - } + atomic_notifier_call_chain(&sprd_eic_irq_notifier, 0, NULL); chained_irq_exit(ic, desc); } +static int sprd_eic_irq_notify(struct notifier_block *nb, unsigned long action, + void *data) +{ + struct sprd_eic *sprd_eic = to_sprd_eic(nb); + + sprd_eic_handle_one_type(&sprd_eic->chip); + + return NOTIFY_OK; +} + static const struct irq_chip sprd_eic_irq = { .name = "sprd-eic", .irq_ack = sprd_eic_irq_ack, @@ -576,21 +580,30 @@ static const struct irq_chip sprd_eic_irq = { .flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_IMMUTABLE, GPIOCHIP_IRQ_RESOURCE_HELPERS, }; + +static void sprd_eic_unregister_notifier(void *data) +{ + struct notifier_block *nb = data; + + atomic_notifier_chain_unregister(&sprd_eic_irq_notifier, nb); +} + static int sprd_eic_probe(struct platform_device *pdev) { const struct sprd_eic_variant_data *pdata; + struct device *dev = &pdev->dev; struct gpio_irq_chip *irq; struct sprd_eic *sprd_eic; struct resource *res; int ret, i; - pdata = of_device_get_match_data(&pdev->dev); + pdata = of_device_get_match_data(dev); if (!pdata) { - dev_err(&pdev->dev, "No matching driver data found.\n"); + dev_err(dev, "No matching driver data found.\n"); return -EINVAL; } - sprd_eic = devm_kzalloc(&pdev->dev, sizeof(*sprd_eic), GFP_KERNEL); + sprd_eic = devm_kzalloc(dev, sizeof(*sprd_eic), GFP_KERNEL); if (!sprd_eic) return -ENOMEM; @@ -612,7 +625,7 @@ static int sprd_eic_probe(struct platform_device *pdev) if (!res) break; - sprd_eic->base[i] = devm_ioremap_resource(&pdev->dev, res); + sprd_eic->base[i] = devm_ioremap_resource(dev, res); if (IS_ERR(sprd_eic->base[i])) return PTR_ERR(sprd_eic->base[i]); } @@ -620,7 +633,7 @@ static int sprd_eic_probe(struct platform_device *pdev) sprd_eic->chip.label = sprd_eic_label_name[sprd_eic->type]; sprd_eic->chip.ngpio = pdata->num_eics; sprd_eic->chip.base = -1; - sprd_eic->chip.parent = &pdev->dev; + sprd_eic->chip.parent = dev; sprd_eic->chip.direction_input = sprd_eic_direction_input; switch (sprd_eic->type) { case SPRD_EIC_DEBOUNCE: @@ -647,13 +660,21 @@ static int sprd_eic_probe(struct platform_device *pdev) irq->num_parents = 1; irq->parents = &sprd_eic->irq; - ret = devm_gpiochip_add_data(&pdev->dev, &sprd_eic->chip, sprd_eic); + ret = devm_gpiochip_add_data(dev, &sprd_eic->chip, sprd_eic); if (ret < 0) { - dev_err(&pdev->dev, "Could not register gpiochip %d.\n", ret); + dev_err(dev, "Could not register gpiochip %d.\n", ret); return ret; } - return 0; + sprd_eic->irq_nb.notifier_call = sprd_eic_irq_notify; + ret = atomic_notifier_chain_register(&sprd_eic_irq_notifier, + &sprd_eic->irq_nb); + if (ret) + return dev_err_probe(dev, ret, + "Failed to register with the interrupt notifier"); + + return devm_add_action_or_reset(dev, sprd_eic_unregister_notifier, + &sprd_eic->irq_nb); } static const struct of_device_id sprd_eic_of_match[] = { diff --git a/drivers/gpio/gpio-f7188x.c b/drivers/gpio/gpio-f7188x.c index f54ca5a1775e..3875fd940ccb 100644 --- a/drivers/gpio/gpio-f7188x.c +++ b/drivers/gpio/gpio-f7188x.c @@ -163,7 +163,7 @@ static void f7188x_gpio_set(struct gpio_chip *chip, unsigned offset, int value); static int f7188x_gpio_set_config(struct gpio_chip *chip, unsigned offset, unsigned long config); -#define F7188X_GPIO_BANK(_base, _ngpio, _regbase, _label) \ +#define F7188X_GPIO_BANK(_ngpio, _regbase, _label) \ { \ .chip = { \ .label = _label, \ @@ -174,7 +174,7 @@ static int f7188x_gpio_set_config(struct gpio_chip *chip, unsigned offset, .direction_output = f7188x_gpio_direction_out, \ .set = f7188x_gpio_set, \ .set_config = f7188x_gpio_set_config, \ - .base = _base, \ + .base = -1, \ .ngpio = _ngpio, \ .can_sleep = true, \ }, \ @@ -191,98 +191,98 @@ static int f7188x_gpio_set_config(struct gpio_chip *chip, unsigned offset, #define f7188x_gpio_data_single(type) ((type) == nct6126d) static struct f7188x_gpio_bank f71869_gpio_bank[] = { - F7188X_GPIO_BANK(0, 6, 0xF0, DRVNAME "-0"), - F7188X_GPIO_BANK(10, 8, 0xE0, DRVNAME "-1"), - F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"), - F7188X_GPIO_BANK(30, 8, 0xC0, DRVNAME "-3"), - F7188X_GPIO_BANK(40, 8, 0xB0, DRVNAME "-4"), - F7188X_GPIO_BANK(50, 5, 0xA0, DRVNAME "-5"), - F7188X_GPIO_BANK(60, 6, 0x90, DRVNAME "-6"), + F7188X_GPIO_BANK(6, 0xF0, DRVNAME "-0"), + F7188X_GPIO_BANK(8, 0xE0, DRVNAME "-1"), + F7188X_GPIO_BANK(8, 0xD0, DRVNAME "-2"), + F7188X_GPIO_BANK(8, 0xC0, DRVNAME "-3"), + F7188X_GPIO_BANK(8, 0xB0, DRVNAME "-4"), + F7188X_GPIO_BANK(5, 0xA0, DRVNAME "-5"), + F7188X_GPIO_BANK(6, 0x90, DRVNAME "-6"), }; static struct f7188x_gpio_bank f71869a_gpio_bank[] = { - F7188X_GPIO_BANK(0, 6, 0xF0, DRVNAME "-0"), - F7188X_GPIO_BANK(10, 8, 0xE0, DRVNAME "-1"), - F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"), - F7188X_GPIO_BANK(30, 8, 0xC0, DRVNAME "-3"), - F7188X_GPIO_BANK(40, 8, 0xB0, DRVNAME "-4"), - F7188X_GPIO_BANK(50, 5, 0xA0, DRVNAME "-5"), - F7188X_GPIO_BANK(60, 8, 0x90, DRVNAME "-6"), - F7188X_GPIO_BANK(70, 8, 0x80, DRVNAME "-7"), + F7188X_GPIO_BANK(6, 0xF0, DRVNAME "-0"), + F7188X_GPIO_BANK(8, 0xE0, DRVNAME "-1"), + F7188X_GPIO_BANK(8, 0xD0, DRVNAME "-2"), + F7188X_GPIO_BANK(8, 0xC0, DRVNAME "-3"), + F7188X_GPIO_BANK(8, 0xB0, DRVNAME "-4"), + F7188X_GPIO_BANK(5, 0xA0, DRVNAME "-5"), + F7188X_GPIO_BANK(8, 0x90, DRVNAME "-6"), + F7188X_GPIO_BANK(8, 0x80, DRVNAME "-7"), }; static struct f7188x_gpio_bank f71882_gpio_bank[] = { - F7188X_GPIO_BANK(0, 8, 0xF0, DRVNAME "-0"), - F7188X_GPIO_BANK(10, 8, 0xE0, DRVNAME "-1"), - F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"), - F7188X_GPIO_BANK(30, 4, 0xC0, DRVNAME "-3"), - F7188X_GPIO_BANK(40, 4, 0xB0, DRVNAME "-4"), + F7188X_GPIO_BANK(8, 0xF0, DRVNAME "-0"), + F7188X_GPIO_BANK(8, 0xE0, DRVNAME "-1"), + F7188X_GPIO_BANK(8, 0xD0, DRVNAME "-2"), + F7188X_GPIO_BANK(4, 0xC0, DRVNAME "-3"), + F7188X_GPIO_BANK(4, 0xB0, DRVNAME "-4"), }; static struct f7188x_gpio_bank f71889a_gpio_bank[] = { - F7188X_GPIO_BANK(0, 7, 0xF0, DRVNAME "-0"), - F7188X_GPIO_BANK(10, 7, 0xE0, DRVNAME "-1"), - F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"), - F7188X_GPIO_BANK(30, 8, 0xC0, DRVNAME "-3"), - F7188X_GPIO_BANK(40, 8, 0xB0, DRVNAME "-4"), - F7188X_GPIO_BANK(50, 5, 0xA0, DRVNAME "-5"), - F7188X_GPIO_BANK(60, 8, 0x90, DRVNAME "-6"), - F7188X_GPIO_BANK(70, 8, 0x80, DRVNAME "-7"), + F7188X_GPIO_BANK(7, 0xF0, DRVNAME "-0"), + F7188X_GPIO_BANK(7, 0xE0, DRVNAME "-1"), + F7188X_GPIO_BANK(8, 0xD0, DRVNAME "-2"), + F7188X_GPIO_BANK(8, 0xC0, DRVNAME "-3"), + F7188X_GPIO_BANK(8, 0xB0, DRVNAME "-4"), + F7188X_GPIO_BANK(5, 0xA0, DRVNAME "-5"), + F7188X_GPIO_BANK(8, 0x90, DRVNAME "-6"), + F7188X_GPIO_BANK(8, 0x80, DRVNAME "-7"), }; static struct f7188x_gpio_bank f71889_gpio_bank[] = { - F7188X_GPIO_BANK(0, 7, 0xF0, DRVNAME "-0"), - F7188X_GPIO_BANK(10, 7, 0xE0, DRVNAME "-1"), - F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"), - F7188X_GPIO_BANK(30, 8, 0xC0, DRVNAME "-3"), - F7188X_GPIO_BANK(40, 8, 0xB0, DRVNAME "-4"), - F7188X_GPIO_BANK(50, 5, 0xA0, DRVNAME "-5"), - F7188X_GPIO_BANK(60, 8, 0x90, DRVNAME "-6"), - F7188X_GPIO_BANK(70, 8, 0x80, DRVNAME "-7"), + F7188X_GPIO_BANK(7, 0xF0, DRVNAME "-0"), + F7188X_GPIO_BANK(7, 0xE0, DRVNAME "-1"), + F7188X_GPIO_BANK(8, 0xD0, DRVNAME "-2"), + F7188X_GPIO_BANK(8, 0xC0, DRVNAME "-3"), + F7188X_GPIO_BANK(8, 0xB0, DRVNAME "-4"), + F7188X_GPIO_BANK(5, 0xA0, DRVNAME "-5"), + F7188X_GPIO_BANK(8, 0x90, DRVNAME "-6"), + F7188X_GPIO_BANK(8, 0x80, DRVNAME "-7"), }; static struct f7188x_gpio_bank f81866_gpio_bank[] = { - F7188X_GPIO_BANK(0, 8, 0xF0, DRVNAME "-0"), - F7188X_GPIO_BANK(10, 8, 0xE0, DRVNAME "-1"), - F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"), - F7188X_GPIO_BANK(30, 8, 0xC0, DRVNAME "-3"), - F7188X_GPIO_BANK(40, 8, 0xB0, DRVNAME "-4"), - F7188X_GPIO_BANK(50, 8, 0xA0, DRVNAME "-5"), - F7188X_GPIO_BANK(60, 8, 0x90, DRVNAME "-6"), - F7188X_GPIO_BANK(70, 8, 0x80, DRVNAME "-7"), - F7188X_GPIO_BANK(80, 8, 0x88, DRVNAME "-8"), + F7188X_GPIO_BANK(8, 0xF0, DRVNAME "-0"), + F7188X_GPIO_BANK(8, 0xE0, DRVNAME "-1"), + F7188X_GPIO_BANK(8, 0xD0, DRVNAME "-2"), + F7188X_GPIO_BANK(8, 0xC0, DRVNAME "-3"), + F7188X_GPIO_BANK(8, 0xB0, DRVNAME "-4"), + F7188X_GPIO_BANK(8, 0xA0, DRVNAME "-5"), + F7188X_GPIO_BANK(8, 0x90, DRVNAME "-6"), + F7188X_GPIO_BANK(8, 0x80, DRVNAME "-7"), + F7188X_GPIO_BANK(8, 0x88, DRVNAME "-8"), }; static struct f7188x_gpio_bank f81804_gpio_bank[] = { - F7188X_GPIO_BANK(0, 8, 0xF0, DRVNAME "-0"), - F7188X_GPIO_BANK(10, 8, 0xE0, DRVNAME "-1"), - F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"), - F7188X_GPIO_BANK(50, 8, 0xA0, DRVNAME "-3"), - F7188X_GPIO_BANK(60, 8, 0x90, DRVNAME "-4"), - F7188X_GPIO_BANK(70, 8, 0x80, DRVNAME "-5"), - F7188X_GPIO_BANK(90, 8, 0x98, DRVNAME "-6"), + F7188X_GPIO_BANK(8, 0xF0, DRVNAME "-0"), + F7188X_GPIO_BANK(8, 0xE0, DRVNAME "-1"), + F7188X_GPIO_BANK(8, 0xD0, DRVNAME "-2"), + F7188X_GPIO_BANK(8, 0xA0, DRVNAME "-3"), + F7188X_GPIO_BANK(8, 0x90, DRVNAME "-4"), + F7188X_GPIO_BANK(8, 0x80, DRVNAME "-5"), + F7188X_GPIO_BANK(8, 0x98, DRVNAME "-6"), }; static struct f7188x_gpio_bank f81865_gpio_bank[] = { - F7188X_GPIO_BANK(0, 8, 0xF0, DRVNAME "-0"), - F7188X_GPIO_BANK(10, 8, 0xE0, DRVNAME "-1"), - F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"), - F7188X_GPIO_BANK(30, 8, 0xC0, DRVNAME "-3"), - F7188X_GPIO_BANK(40, 8, 0xB0, DRVNAME "-4"), - F7188X_GPIO_BANK(50, 8, 0xA0, DRVNAME "-5"), - F7188X_GPIO_BANK(60, 5, 0x90, DRVNAME "-6"), + F7188X_GPIO_BANK(8, 0xF0, DRVNAME "-0"), + F7188X_GPIO_BANK(8, 0xE0, DRVNAME "-1"), + F7188X_GPIO_BANK(8, 0xD0, DRVNAME "-2"), + F7188X_GPIO_BANK(8, 0xC0, DRVNAME "-3"), + F7188X_GPIO_BANK(8, 0xB0, DRVNAME "-4"), + F7188X_GPIO_BANK(8, 0xA0, DRVNAME "-5"), + F7188X_GPIO_BANK(5, 0x90, DRVNAME "-6"), }; static struct f7188x_gpio_bank nct6126d_gpio_bank[] = { - F7188X_GPIO_BANK(0, 8, 0xE0, DRVNAME "-0"), - F7188X_GPIO_BANK(10, 8, 0xE4, DRVNAME "-1"), - F7188X_GPIO_BANK(20, 8, 0xE8, DRVNAME "-2"), - F7188X_GPIO_BANK(30, 8, 0xEC, DRVNAME "-3"), - F7188X_GPIO_BANK(40, 8, 0xF0, DRVNAME "-4"), - F7188X_GPIO_BANK(50, 8, 0xF4, DRVNAME "-5"), - F7188X_GPIO_BANK(60, 8, 0xF8, DRVNAME "-6"), - F7188X_GPIO_BANK(70, 8, 0xFC, DRVNAME "-7"), + F7188X_GPIO_BANK(8, 0xE0, DRVNAME "-0"), + F7188X_GPIO_BANK(8, 0xE4, DRVNAME "-1"), + F7188X_GPIO_BANK(8, 0xE8, DRVNAME "-2"), + F7188X_GPIO_BANK(8, 0xEC, DRVNAME "-3"), + F7188X_GPIO_BANK(8, 0xF0, DRVNAME "-4"), + F7188X_GPIO_BANK(8, 0xF4, DRVNAME "-5"), + F7188X_GPIO_BANK(8, 0xF8, DRVNAME "-6"), + F7188X_GPIO_BANK(8, 0xFC, DRVNAME "-7"), }; static int f7188x_gpio_get_direction(struct gpio_chip *chip, unsigned offset) diff --git a/drivers/gpio/gpio-ftgpio010.c b/drivers/gpio/gpio-ftgpio010.c index 5ce59dcf02e3..97d345b59352 100644 --- a/drivers/gpio/gpio-ftgpio010.c +++ b/drivers/gpio/gpio-ftgpio010.c @@ -324,13 +324,11 @@ dis_clk: return ret; } -static int ftgpio_gpio_remove(struct platform_device *pdev) +static void ftgpio_gpio_remove(struct platform_device *pdev) { struct ftgpio_gpio *g = platform_get_drvdata(pdev); clk_disable_unprepare(g->clk); - - return 0; } static const struct of_device_id ftgpio_gpio_of_match[] = { @@ -352,6 +350,6 @@ static struct platform_driver ftgpio_gpio_driver = { .of_match_table = ftgpio_gpio_of_match, }, .probe = ftgpio_gpio_probe, - .remove = ftgpio_gpio_remove, + .remove_new = ftgpio_gpio_remove, }; builtin_platform_driver(ftgpio_gpio_driver); diff --git a/drivers/gpio/gpio-fxl6408.c b/drivers/gpio/gpio-fxl6408.c index c14b5cc5e519..991549888904 100644 --- a/drivers/gpio/gpio-fxl6408.c +++ b/drivers/gpio/gpio-fxl6408.c @@ -84,7 +84,7 @@ static const struct regmap_config regmap = { .rd_table = &rd_table, .volatile_table = &volatile_table, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, .num_reg_defaults_raw = FXL6408_REG_INT_STS + 1, }; diff --git a/drivers/gpio/gpio-grgpio.c b/drivers/gpio/gpio-grgpio.c index 0163c95f6dd7..017c7170eb57 100644 --- a/drivers/gpio/gpio-grgpio.c +++ b/drivers/gpio/gpio-grgpio.c @@ -431,7 +431,7 @@ static int grgpio_probe(struct platform_device *ofdev) return 0; } -static int grgpio_remove(struct platform_device *ofdev) +static void grgpio_remove(struct platform_device *ofdev) { struct grgpio_priv *priv = platform_get_drvdata(ofdev); @@ -439,8 +439,6 @@ static int grgpio_remove(struct platform_device *ofdev) if (priv->domain) irq_domain_remove(priv->domain); - - return 0; } static const struct of_device_id grgpio_match[] = { @@ -457,7 +455,7 @@ static struct platform_driver grgpio_driver = { .of_match_table = grgpio_match, }, .probe = grgpio_probe, - .remove = grgpio_remove, + .remove_new = grgpio_remove, }; module_platform_driver(grgpio_driver); diff --git a/drivers/gpio/gpio-hisi.c b/drivers/gpio/gpio-hisi.c index 29a03de37fd8..ef5cc654a24e 100644 --- a/drivers/gpio/gpio-hisi.c +++ b/drivers/gpio/gpio-hisi.c @@ -255,7 +255,7 @@ static void hisi_gpio_get_pdata(struct device *dev, hisi_gpio->irq = platform_get_irq(pdev, idx); dev_info(dev, - "get hisi_gpio[%d] with %d lines\n", idx, + "get hisi_gpio[%d] with %u lines\n", idx, hisi_gpio->line_num); idx++; diff --git a/drivers/gpio/gpio-ljca.c b/drivers/gpio/gpio-ljca.c index 87863f0230f5..aca69329455f 100644 --- a/drivers/gpio/gpio-ljca.c +++ b/drivers/gpio/gpio-ljca.c @@ -421,7 +421,7 @@ static int ljca_gpio_probe(struct platform_device *pdev) return ret; } -static int ljca_gpio_remove(struct platform_device *pdev) +static void ljca_gpio_remove(struct platform_device *pdev) { struct ljca_gpio_dev *ljca_gpio = platform_get_drvdata(pdev); @@ -429,7 +429,6 @@ static int ljca_gpio_remove(struct platform_device *pdev) ljca_unregister_event_cb(ljca_gpio->gpio_info->ljca); mutex_destroy(&ljca_gpio->irq_lock); mutex_destroy(&ljca_gpio->trans_lock); - return 0; } #define LJCA_GPIO_DRV_NAME "ljca-gpio" @@ -442,7 +441,7 @@ MODULE_DEVICE_TABLE(platform, ljca_gpio_id); static struct platform_driver ljca_gpio_driver = { .driver.name = LJCA_GPIO_DRV_NAME, .probe = ljca_gpio_probe, - .remove = ljca_gpio_remove, + .remove_new = ljca_gpio_remove, }; module_platform_driver(ljca_gpio_driver); diff --git a/drivers/gpio/gpio-loongson-64bit.c b/drivers/gpio/gpio-loongson-64bit.c index 06213bbfabdd..6749d4dd6d64 100644 --- a/drivers/gpio/gpio-loongson-64bit.c +++ b/drivers/gpio/gpio-loongson-64bit.c @@ -26,6 +26,7 @@ struct loongson_gpio_chip_data { unsigned int conf_offset; unsigned int out_offset; unsigned int in_offset; + unsigned int inten_offset; }; struct loongson_gpio_chip { @@ -117,19 +118,29 @@ static void loongson_gpio_set(struct gpio_chip *chip, unsigned int pin, int valu static int loongson_gpio_to_irq(struct gpio_chip *chip, unsigned int offset) { + unsigned int u; struct platform_device *pdev = to_platform_device(chip->parent); + struct loongson_gpio_chip *lgpio = to_loongson_gpio_chip(chip); + + if (lgpio->chip_data->mode == BIT_CTRL_MODE) { + /* Get the register index from offset then multiply by bytes per register */ + u = readl(lgpio->reg_base + lgpio->chip_data->inten_offset + (offset / 32) * 4); + u |= BIT(offset % 32); + writel(u, lgpio->reg_base + lgpio->chip_data->inten_offset + (offset / 32) * 4); + } else { + writeb(1, lgpio->reg_base + lgpio->chip_data->inten_offset + offset); + } return platform_get_irq(pdev, offset); } static int loongson_gpio_init(struct device *dev, struct loongson_gpio_chip *lgpio, - struct device_node *np, void __iomem *reg_base) + void __iomem *reg_base) { int ret; u32 ngpios; lgpio->reg_base = reg_base; - if (lgpio->chip_data->mode == BIT_CTRL_MODE) { ret = bgpio_init(&lgpio->chip, dev, 8, lgpio->reg_base + lgpio->chip_data->in_offset, @@ -148,15 +159,15 @@ static int loongson_gpio_init(struct device *dev, struct loongson_gpio_chip *lgp lgpio->chip.direction_output = loongson_gpio_direction_output; lgpio->chip.set = loongson_gpio_set; lgpio->chip.parent = dev; + device_property_read_u32(dev, "ngpios", &ngpios); + lgpio->chip.ngpio = ngpios; spin_lock_init(&lgpio->lock); } - device_property_read_u32(dev, "ngpios", &ngpios); - - lgpio->chip.can_sleep = 0; - lgpio->chip.ngpio = ngpios; lgpio->chip.label = lgpio->chip_data->label; - lgpio->chip.to_irq = loongson_gpio_to_irq; + lgpio->chip.can_sleep = false; + if (lgpio->chip_data->inten_offset) + lgpio->chip.to_irq = loongson_gpio_to_irq; return devm_gpiochip_add_data(dev, &lgpio->chip, lgpio); } @@ -165,7 +176,6 @@ static int loongson_gpio_probe(struct platform_device *pdev) { void __iomem *reg_base; struct loongson_gpio_chip *lgpio; - struct device_node *np = pdev->dev.of_node; struct device *dev = &pdev->dev; lgpio = devm_kzalloc(dev, sizeof(*lgpio), GFP_KERNEL); @@ -178,7 +188,7 @@ static int loongson_gpio_probe(struct platform_device *pdev) if (IS_ERR(reg_base)) return PTR_ERR(reg_base); - return loongson_gpio_init(dev, lgpio, np, reg_base); + return loongson_gpio_init(dev, lgpio, reg_base); } static const struct loongson_gpio_chip_data loongson_gpio_ls2k_data = { @@ -187,6 +197,57 @@ static const struct loongson_gpio_chip_data loongson_gpio_ls2k_data = { .conf_offset = 0x0, .in_offset = 0x20, .out_offset = 0x10, + .inten_offset = 0x30, +}; + +static const struct loongson_gpio_chip_data loongson_gpio_ls2k0500_data0 = { + .label = "ls2k0500_gpio", + .mode = BIT_CTRL_MODE, + .conf_offset = 0x0, + .in_offset = 0x8, + .out_offset = 0x10, + .inten_offset = 0xb0, +}; + +static const struct loongson_gpio_chip_data loongson_gpio_ls2k0500_data1 = { + .label = "ls2k0500_gpio", + .mode = BIT_CTRL_MODE, + .conf_offset = 0x0, + .in_offset = 0x8, + .out_offset = 0x10, + .inten_offset = 0x98, +}; + +static const struct loongson_gpio_chip_data loongson_gpio_ls2k2000_data0 = { + .label = "ls2k2000_gpio", + .mode = BIT_CTRL_MODE, + .conf_offset = 0x0, + .in_offset = 0xc, + .out_offset = 0x8, +}; + +static const struct loongson_gpio_chip_data loongson_gpio_ls2k2000_data1 = { + .label = "ls2k2000_gpio", + .mode = BIT_CTRL_MODE, + .conf_offset = 0x0, + .in_offset = 0x20, + .out_offset = 0x10, +}; + +static const struct loongson_gpio_chip_data loongson_gpio_ls2k2000_data2 = { + .label = "ls2k2000_gpio", + .mode = BIT_CTRL_MODE, + .conf_offset = 0x84, + .in_offset = 0x88, + .out_offset = 0x80, +}; + +static const struct loongson_gpio_chip_data loongson_gpio_ls3a5000_data = { + .label = "ls3a5000_gpio", + .mode = BIT_CTRL_MODE, + .conf_offset = 0x0, + .in_offset = 0xc, + .out_offset = 0x8, }; static const struct loongson_gpio_chip_data loongson_gpio_ls7a_data = { @@ -203,6 +264,30 @@ static const struct of_device_id loongson_gpio_of_match[] = { .data = &loongson_gpio_ls2k_data, }, { + .compatible = "loongson,ls2k0500-gpio0", + .data = &loongson_gpio_ls2k0500_data0, + }, + { + .compatible = "loongson,ls2k0500-gpio1", + .data = &loongson_gpio_ls2k0500_data1, + }, + { + .compatible = "loongson,ls2k2000-gpio0", + .data = &loongson_gpio_ls2k2000_data0, + }, + { + .compatible = "loongson,ls2k2000-gpio1", + .data = &loongson_gpio_ls2k2000_data1, + }, + { + .compatible = "loongson,ls2k2000-gpio2", + .data = &loongson_gpio_ls2k2000_data2, + }, + { + .compatible = "loongson,ls3a5000-gpio", + .data = &loongson_gpio_ls3a5000_data, + }, + { .compatible = "loongson,ls7a-gpio", .data = &loongson_gpio_ls7a_data, }, @@ -215,6 +300,22 @@ static const struct acpi_device_id loongson_gpio_acpi_match[] = { .id = "LOON0002", .driver_data = (kernel_ulong_t)&loongson_gpio_ls7a_data, }, + { + .id = "LOON0007", + .driver_data = (kernel_ulong_t)&loongson_gpio_ls3a5000_data, + }, + { + .id = "LOON000A", + .driver_data = (kernel_ulong_t)&loongson_gpio_ls2k2000_data0, + }, + { + .id = "LOON000B", + .driver_data = (kernel_ulong_t)&loongson_gpio_ls2k2000_data1, + }, + { + .id = "LOON000C", + .driver_data = (kernel_ulong_t)&loongson_gpio_ls2k2000_data2, + }, {} }; MODULE_DEVICE_TABLE(acpi, loongson_gpio_acpi_match); diff --git a/drivers/gpio/gpio-lpc18xx.c b/drivers/gpio/gpio-lpc18xx.c index ed3f653a1dfc..5c6bb57a8c99 100644 --- a/drivers/gpio/gpio-lpc18xx.c +++ b/drivers/gpio/gpio-lpc18xx.c @@ -381,7 +381,7 @@ static int lpc18xx_gpio_probe(struct platform_device *pdev) return 0; } -static int lpc18xx_gpio_remove(struct platform_device *pdev) +static void lpc18xx_gpio_remove(struct platform_device *pdev) { struct lpc18xx_gpio_chip *gc = platform_get_drvdata(pdev); @@ -389,8 +389,6 @@ static int lpc18xx_gpio_remove(struct platform_device *pdev) irq_domain_remove(gc->pin_ic->domain); clk_disable_unprepare(gc->clk); - - return 0; } static const struct of_device_id lpc18xx_gpio_match[] = { @@ -401,7 +399,7 @@ MODULE_DEVICE_TABLE(of, lpc18xx_gpio_match); static struct platform_driver lpc18xx_gpio_driver = { .probe = lpc18xx_gpio_probe, - .remove = lpc18xx_gpio_remove, + .remove_new = lpc18xx_gpio_remove, .driver = { .name = "lpc18xx-gpio", .of_match_table = lpc18xx_gpio_match, diff --git a/drivers/gpio/gpio-mb86s7x.c b/drivers/gpio/gpio-mb86s7x.c index ca7eb5e8bfaa..7fb298b4571b 100644 --- a/drivers/gpio/gpio-mb86s7x.c +++ b/drivers/gpio/gpio-mb86s7x.c @@ -20,7 +20,6 @@ #include <linux/spinlock.h> #include <linux/slab.h> -#include "gpiolib.h" #include "gpiolib-acpi.h" /* @@ -205,15 +204,13 @@ static int mb86s70_gpio_probe(struct platform_device *pdev) return 0; } -static int mb86s70_gpio_remove(struct platform_device *pdev) +static void mb86s70_gpio_remove(struct platform_device *pdev) { struct mb86s70_gpio_chip *gchip = platform_get_drvdata(pdev); acpi_gpiochip_free_interrupts(&gchip->gc); gpiochip_remove(&gchip->gc); clk_disable_unprepare(gchip->clk); - - return 0; } static const struct of_device_id mb86s70_gpio_dt_ids[] = { @@ -237,7 +234,7 @@ static struct platform_driver mb86s70_gpio_driver = { .acpi_match_table = ACPI_PTR(mb86s70_gpio_acpi_ids), }, .probe = mb86s70_gpio_probe, - .remove = mb86s70_gpio_remove, + .remove_new = mb86s70_gpio_remove, }; module_platform_driver(mb86s70_gpio_driver); diff --git a/drivers/gpio/gpio-mm-lantiq.c b/drivers/gpio/gpio-mm-lantiq.c index f3c158259636..e855c68c981b 100644 --- a/drivers/gpio/gpio-mm-lantiq.c +++ b/drivers/gpio/gpio-mm-lantiq.c @@ -121,13 +121,11 @@ static int ltq_mm_probe(struct platform_device *pdev) return of_mm_gpiochip_add_data(pdev->dev.of_node, &chip->mmchip, chip); } -static int ltq_mm_remove(struct platform_device *pdev) +static void ltq_mm_remove(struct platform_device *pdev) { struct ltq_mm *chip = platform_get_drvdata(pdev); of_mm_gpiochip_remove(&chip->mmchip); - - return 0; } static const struct of_device_id ltq_mm_match[] = { @@ -138,7 +136,7 @@ MODULE_DEVICE_TABLE(of, ltq_mm_match); static struct platform_driver ltq_mm_driver = { .probe = ltq_mm_probe, - .remove = ltq_mm_remove, + .remove_new = ltq_mm_remove, .driver = { .name = "gpio-mm-ltq", .of_match_table = ltq_mm_match, diff --git a/drivers/gpio/gpio-mmio.c b/drivers/gpio/gpio-mmio.c index 74fdf0d87b2c..3ff0ea1e351c 100644 --- a/drivers/gpio/gpio-mmio.c +++ b/drivers/gpio/gpio-mmio.c @@ -56,9 +56,9 @@ o ` ~~~~\___/~~~~ ` controller in FPGA is ,.` #include <linux/slab.h> #include <linux/bitops.h> #include <linux/platform_device.h> +#include <linux/property.h> #include <linux/mod_devicetable.h> #include <linux/of.h> -#include <linux/of_device.h> #include "gpiolib.h" @@ -702,7 +702,7 @@ static struct bgpio_pdata *bgpio_parse_dt(struct platform_device *pdev, { struct bgpio_pdata *pdata; - if (!of_match_device(bgpio_of_match, &pdev->dev)) + if (!pdev->dev.of_node) return NULL; pdata = devm_kzalloc(&pdev->dev, sizeof(struct bgpio_pdata), diff --git a/drivers/gpio/gpio-mockup.c b/drivers/gpio/gpio-mockup.c index b32063ac845a..4870e267a402 100644 --- a/drivers/gpio/gpio-mockup.c +++ b/drivers/gpio/gpio-mockup.c @@ -9,7 +9,9 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include <linux/cleanup.h> #include <linux/debugfs.h> +#include <linux/device.h> #include <linux/gpio/driver.h> #include <linux/interrupt.h> #include <linux/irq.h> @@ -24,8 +26,6 @@ #include <linux/string_helpers.h> #include <linux/uaccess.h> -#include "gpiolib.h" - #define GPIO_MOCKUP_MAX_GC 10 /* * We're storing two values per chip: the GPIO base and the number @@ -39,11 +39,15 @@ * struct gpio_pin_status - structure describing a GPIO status * @dir: Configures direction of gpio as "in" or "out" * @value: Configures status of the gpio as 0(low) or 1(high) + * @pull: Configures the current pull of the GPIO as 0 (pull-down) or + * 1 (pull-up) + * @requested: Request status of this GPIO */ struct gpio_mockup_line_status { int dir; int value; int pull; + bool requested; }; struct gpio_mockup_chip { @@ -56,7 +60,6 @@ struct gpio_mockup_chip { struct gpio_mockup_dbgfs_private { struct gpio_mockup_chip *chip; - struct gpio_desc *desc; unsigned int offset; }; @@ -91,9 +94,8 @@ static int gpio_mockup_get(struct gpio_chip *gc, unsigned int offset) struct gpio_mockup_chip *chip = gpiochip_get_data(gc); int val; - mutex_lock(&chip->lock); - val = __gpio_mockup_get(chip, offset); - mutex_unlock(&chip->lock); + scoped_guard(mutex, &chip->lock) + val = __gpio_mockup_get(chip, offset); return val; } @@ -104,12 +106,12 @@ static int gpio_mockup_get_multiple(struct gpio_chip *gc, struct gpio_mockup_chip *chip = gpiochip_get_data(gc); unsigned int bit, val; - mutex_lock(&chip->lock); - for_each_set_bit(bit, mask, gc->ngpio) { - val = __gpio_mockup_get(chip, bit); - __assign_bit(bit, bits, val); + scoped_guard(mutex, &chip->lock) { + for_each_set_bit(bit, mask, gc->ngpio) { + val = __gpio_mockup_get(chip, bit); + __assign_bit(bit, bits, val); + } } - mutex_unlock(&chip->lock); return 0; } @@ -125,9 +127,9 @@ static void gpio_mockup_set(struct gpio_chip *gc, { struct gpio_mockup_chip *chip = gpiochip_get_data(gc); - mutex_lock(&chip->lock); + guard(mutex)(&chip->lock); + __gpio_mockup_set(chip, offset, value); - mutex_unlock(&chip->lock); } static void gpio_mockup_set_multiple(struct gpio_chip *gc, @@ -136,23 +138,21 @@ static void gpio_mockup_set_multiple(struct gpio_chip *gc, struct gpio_mockup_chip *chip = gpiochip_get_data(gc); unsigned int bit; - mutex_lock(&chip->lock); + guard(mutex)(&chip->lock); + for_each_set_bit(bit, mask, gc->ngpio) __gpio_mockup_set(chip, bit, test_bit(bit, bits)); - mutex_unlock(&chip->lock); } static int gpio_mockup_apply_pull(struct gpio_mockup_chip *chip, unsigned int offset, int value) { - struct gpio_chip *gc = &chip->gc; - struct gpio_desc *desc = gpiochip_get_desc(gc, offset); + struct gpio_mockup_line_status *line = &chip->lines[offset]; int curr, irq, irq_type, ret = 0; - mutex_lock(&chip->lock); + guard(mutex)(&chip->lock); - if (test_bit(FLAG_REQUESTED, &desc->flags) && - !test_bit(FLAG_IS_OUT, &desc->flags)) { + if (line->requested && line->dir == GPIO_LINE_DIRECTION_IN) { curr = __gpio_mockup_get(chip, offset); if (curr == value) goto out; @@ -180,13 +180,11 @@ static int gpio_mockup_apply_pull(struct gpio_mockup_chip *chip, set_value: /* Change the value unless we're actively driving the line. */ - if (!test_bit(FLAG_REQUESTED, &desc->flags) || - !test_bit(FLAG_IS_OUT, &desc->flags)) + if (!line->requested || line->dir == GPIO_LINE_DIRECTION_IN) __gpio_mockup_set(chip, offset, value); out: chip->lines[offset].pull = value; - mutex_unlock(&chip->lock); return ret; } @@ -211,10 +209,10 @@ static int gpio_mockup_dirout(struct gpio_chip *gc, { struct gpio_mockup_chip *chip = gpiochip_get_data(gc); - mutex_lock(&chip->lock); - chip->lines[offset].dir = GPIO_LINE_DIRECTION_OUT; - __gpio_mockup_set(chip, offset, value); - mutex_unlock(&chip->lock); + scoped_guard(mutex, &chip->lock) { + chip->lines[offset].dir = GPIO_LINE_DIRECTION_OUT; + __gpio_mockup_set(chip, offset, value); + } return 0; } @@ -223,9 +221,8 @@ static int gpio_mockup_dirin(struct gpio_chip *gc, unsigned int offset) { struct gpio_mockup_chip *chip = gpiochip_get_data(gc); - mutex_lock(&chip->lock); - chip->lines[offset].dir = GPIO_LINE_DIRECTION_IN; - mutex_unlock(&chip->lock); + scoped_guard(mutex, &chip->lock) + chip->lines[offset].dir = GPIO_LINE_DIRECTION_IN; return 0; } @@ -235,9 +232,8 @@ static int gpio_mockup_get_direction(struct gpio_chip *gc, unsigned int offset) struct gpio_mockup_chip *chip = gpiochip_get_data(gc); int direction; - mutex_lock(&chip->lock); - direction = chip->lines[offset].dir; - mutex_unlock(&chip->lock); + scoped_guard(mutex, &chip->lock) + direction = chip->lines[offset].dir; return direction; } @@ -249,10 +245,23 @@ static int gpio_mockup_to_irq(struct gpio_chip *gc, unsigned int offset) return irq_create_mapping(chip->irq_sim_domain, offset); } +static int gpio_mockup_request(struct gpio_chip *gc, unsigned int offset) +{ + struct gpio_mockup_chip *chip = gpiochip_get_data(gc); + + scoped_guard(mutex, &chip->lock) + chip->lines[offset].requested = true; + + return 0; +} + static void gpio_mockup_free(struct gpio_chip *gc, unsigned int offset) { struct gpio_mockup_chip *chip = gpiochip_get_data(gc); + guard(mutex)(&chip->lock); + + chip->lines[offset].requested = false; __gpio_mockup_set(chip, offset, chip->lines[offset].pull); } @@ -345,6 +354,7 @@ static const struct file_operations gpio_mockup_debugfs_ops = { static void gpio_mockup_debugfs_setup(struct device *dev, struct gpio_mockup_chip *chip) { + struct device *child __free(put_device) = NULL; struct gpio_mockup_dbgfs_private *priv; struct gpio_chip *gc; const char *devname; @@ -352,8 +362,16 @@ static void gpio_mockup_debugfs_setup(struct device *dev, int i; gc = &chip->gc; - devname = dev_name(&gc->gpiodev->dev); + /* + * There can only be a single GPIO device per platform device in + * gpio-mockup so using device_find_any_child() is OK. + */ + child = device_find_any_child(dev); + if (!child) + return; + + devname = dev_name(child); chip->dbg_dir = debugfs_create_dir(devname, gpio_mockup_dbg_dir); for (i = 0; i < gc->ngpio; i++) { @@ -367,7 +385,6 @@ static void gpio_mockup_debugfs_setup(struct device *dev, priv->chip = chip; priv->offset = i; - priv->desc = gpiochip_get_desc(gc, i); debugfs_create_file(name, 0600, chip->dbg_dir, priv, &gpio_mockup_debugfs_ops); @@ -438,6 +455,7 @@ static int gpio_mockup_probe(struct platform_device *pdev) gc->get_direction = gpio_mockup_get_direction; gc->set_config = gpio_mockup_set_config; gc->to_irq = gpio_mockup_to_irq; + gc->request = gpio_mockup_request; gc->free = gpio_mockup_free; chip->lines = devm_kcalloc(dev, gc->ngpio, diff --git a/drivers/gpio/gpio-mpc5200.c b/drivers/gpio/gpio-mpc5200.c index b49e3ca64015..a199dce3394a 100644 --- a/drivers/gpio/gpio-mpc5200.c +++ b/drivers/gpio/gpio-mpc5200.c @@ -165,13 +165,11 @@ static int mpc52xx_wkup_gpiochip_probe(struct platform_device *ofdev) return 0; } -static int mpc52xx_gpiochip_remove(struct platform_device *ofdev) +static void mpc52xx_gpiochip_remove(struct platform_device *ofdev) { struct mpc52xx_gpiochip *chip = platform_get_drvdata(ofdev); of_mm_gpiochip_remove(&chip->mmchip); - - return 0; } static const struct of_device_id mpc52xx_wkup_gpiochip_match[] = { @@ -185,7 +183,7 @@ static struct platform_driver mpc52xx_wkup_gpiochip_driver = { .of_match_table = mpc52xx_wkup_gpiochip_match, }, .probe = mpc52xx_wkup_gpiochip_probe, - .remove = mpc52xx_gpiochip_remove, + .remove_new = mpc52xx_gpiochip_remove, }; /* @@ -338,7 +336,7 @@ static struct platform_driver mpc52xx_simple_gpiochip_driver = { .of_match_table = mpc52xx_simple_gpiochip_match, }, .probe = mpc52xx_simple_gpiochip_probe, - .remove = mpc52xx_gpiochip_remove, + .remove_new = mpc52xx_gpiochip_remove, }; static struct platform_driver * const drivers[] = { diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c index ebf2f511df59..c0125ac73906 100644 --- a/drivers/gpio/gpio-mpc8xxx.c +++ b/drivers/gpio/gpio-mpc8xxx.c @@ -419,7 +419,7 @@ err: return ret; } -static int mpc8xxx_remove(struct platform_device *pdev) +static void mpc8xxx_remove(struct platform_device *pdev) { struct mpc8xxx_gpio_chip *mpc8xxx_gc = platform_get_drvdata(pdev); @@ -427,8 +427,6 @@ static int mpc8xxx_remove(struct platform_device *pdev) irq_set_chained_handler_and_data(mpc8xxx_gc->irqn, NULL, NULL); irq_domain_remove(mpc8xxx_gc->irq); } - - return 0; } #ifdef CONFIG_ACPI @@ -441,7 +439,7 @@ MODULE_DEVICE_TABLE(acpi, gpio_acpi_ids); static struct platform_driver mpc8xxx_plat_driver = { .probe = mpc8xxx_probe, - .remove = mpc8xxx_remove, + .remove_new = mpc8xxx_remove, .driver = { .name = "gpio-mpc8xxx", .of_match_table = mpc8xxx_gpio_ids, diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c index 67497116ce27..8f80ca8ec1ed 100644 --- a/drivers/gpio/gpio-mvebu.c +++ b/drivers/gpio/gpio-mvebu.c @@ -42,9 +42,10 @@ #include <linux/irqchip/chained_irq.h> #include <linux/irqdomain.h> #include <linux/mfd/syscon.h> -#include <linux/of_device.h> +#include <linux/of.h> #include <linux/pinctrl/consumer.h> #include <linux/platform_device.h> +#include <linux/property.h> #include <linux/pwm.h> #include <linux/regmap.h> #include <linux/slab.h> @@ -1122,7 +1123,6 @@ static void mvebu_gpio_remove_irq_domain(void *data) static int mvebu_gpio_probe(struct platform_device *pdev) { struct mvebu_gpio_chip *mvchip; - const struct of_device_id *match; struct device_node *np = pdev->dev.of_node; struct irq_chip_generic *gc; struct irq_chip_type *ct; @@ -1132,11 +1132,7 @@ static int mvebu_gpio_probe(struct platform_device *pdev) int i, cpu, id; int err; - match = of_match_device(mvebu_gpio_of_match, &pdev->dev); - if (match) - soc_variant = (unsigned long) match->data; - else - soc_variant = MVEBU_GPIO_SOC_VARIANT_ORION; + soc_variant = (unsigned long)device_get_match_data(&pdev->dev); /* Some gpio controllers do not provide irq support */ err = platform_irq_count(pdev); diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index a927680c66f8..76d5d87e9681 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -1048,15 +1048,14 @@ static int omap_gpio_chip_init(struct gpio_bank *bank, struct device *pm_dev) bank->chip.label = "mpuio"; if (bank->regs->wkup_en) bank->chip.parent = &omap_mpuio_device.dev; - bank->chip.base = OMAP_MPUIO(0); } else { label = devm_kasprintf(bank->chip.parent, GFP_KERNEL, "gpio-%d-%d", gpio, gpio + bank->width - 1); if (!label) return -ENOMEM; bank->chip.label = label; - bank->chip.base = -1; } + bank->chip.base = -1; bank->chip.ngpio = bank->width; irq = &bank->chip.irq; @@ -1489,7 +1488,7 @@ static int omap_gpio_probe(struct platform_device *pdev) return 0; } -static int omap_gpio_remove(struct platform_device *pdev) +static void omap_gpio_remove(struct platform_device *pdev) { struct gpio_bank *bank = platform_get_drvdata(pdev); @@ -1498,8 +1497,6 @@ static int omap_gpio_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); if (bank->dbck_flag) clk_unprepare(bank->dbck); - - return 0; } static int __maybe_unused omap_gpio_runtime_suspend(struct device *dev) @@ -1560,7 +1557,7 @@ static const struct dev_pm_ops gpio_pm_ops = { static struct platform_driver omap_gpio_driver = { .probe = omap_gpio_probe, - .remove = omap_gpio_remove, + .remove_new = omap_gpio_remove, .driver = { .name = "omap_gpio", .pm = &gpio_pm_ops, diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index bdd50a78e414..00ffa168e405 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -8,22 +8,30 @@ * Derived from drivers/i2c/chips/pca9539.c */ -#include <linux/acpi.h> +#include <linux/atomic.h> #include <linux/bitmap.h> -#include <linux/gpio/consumer.h> -#include <linux/gpio/driver.h> +#include <linux/cleanup.h> +#include <linux/device.h> +#include <linux/errno.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/mod_devicetable.h> #include <linux/module.h> -#include <linux/of_platform.h> -#include <linux/platform_data/pca953x.h> +#include <linux/mutex.h> +#include <linux/pm.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/seq_file.h> #include <linux/slab.h> -#include <asm/unaligned.h> +#include <linux/gpio/consumer.h> +#include <linux/gpio/driver.h> + +#include <linux/pinctrl/pinconf-generic.h> + +#include <linux/platform_data/pca953x.h> #define PCA953X_INPUT 0x00 #define PCA953X_OUTPUT 0x01 @@ -118,6 +126,7 @@ MODULE_DEVICE_TABLE(i2c, pca953x_id); #ifdef CONFIG_GPIO_PCA953X_IRQ +#include <linux/acpi.h> #include <linux/dmi.h> static const struct acpi_gpio_params pca953x_irq_gpios = { 0, 0, true }; @@ -211,7 +220,6 @@ struct pca953x_chip { struct i2c_client *client; struct gpio_chip gpio_chip; - const char *const *names; unsigned long driver_data; struct regulator *regulator; @@ -414,7 +422,7 @@ static const struct regmap_config pca953x_i2c_regmap = { .volatile_reg = pca953x_volatile_register, .disable_locking = true, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, .max_register = 0x7f, }; @@ -430,7 +438,7 @@ static const struct regmap_config pca953x_ai_i2c_regmap = { .volatile_reg = pca953x_volatile_register, .disable_locking = true, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_MAPLE, .max_register = 0x7f, }; @@ -520,12 +528,10 @@ static int pca953x_gpio_direction_input(struct gpio_chip *gc, unsigned off) struct pca953x_chip *chip = gpiochip_get_data(gc); u8 dirreg = chip->recalc_addr(chip, chip->regs->direction, off); u8 bit = BIT(off % BANK_SZ); - int ret; - mutex_lock(&chip->i2c_lock); - ret = regmap_write_bits(chip->regmap, dirreg, bit, bit); - mutex_unlock(&chip->i2c_lock); - return ret; + guard(mutex)(&chip->i2c_lock); + + return regmap_write_bits(chip->regmap, dirreg, bit, bit); } static int pca953x_gpio_direction_output(struct gpio_chip *gc, @@ -537,17 +543,15 @@ static int pca953x_gpio_direction_output(struct gpio_chip *gc, u8 bit = BIT(off % BANK_SZ); int ret; - mutex_lock(&chip->i2c_lock); + guard(mutex)(&chip->i2c_lock); + /* set output level */ ret = regmap_write_bits(chip->regmap, outreg, bit, val ? bit : 0); if (ret) - goto exit; + return ret; /* then direction */ - ret = regmap_write_bits(chip->regmap, dirreg, bit, 0); -exit: - mutex_unlock(&chip->i2c_lock); - return ret; + return regmap_write_bits(chip->regmap, dirreg, bit, 0); } static int pca953x_gpio_get_value(struct gpio_chip *gc, unsigned off) @@ -558,9 +562,8 @@ static int pca953x_gpio_get_value(struct gpio_chip *gc, unsigned off) u32 reg_val; int ret; - mutex_lock(&chip->i2c_lock); - ret = regmap_read(chip->regmap, inreg, ®_val); - mutex_unlock(&chip->i2c_lock); + scoped_guard(mutex, &chip->i2c_lock) + ret = regmap_read(chip->regmap, inreg, ®_val); if (ret < 0) return ret; @@ -573,9 +576,9 @@ static void pca953x_gpio_set_value(struct gpio_chip *gc, unsigned off, int val) u8 outreg = chip->recalc_addr(chip, chip->regs->output, off); u8 bit = BIT(off % BANK_SZ); - mutex_lock(&chip->i2c_lock); + guard(mutex)(&chip->i2c_lock); + regmap_write_bits(chip->regmap, outreg, bit, val ? bit : 0); - mutex_unlock(&chip->i2c_lock); } static int pca953x_gpio_get_direction(struct gpio_chip *gc, unsigned off) @@ -586,9 +589,8 @@ static int pca953x_gpio_get_direction(struct gpio_chip *gc, unsigned off) u32 reg_val; int ret; - mutex_lock(&chip->i2c_lock); - ret = regmap_read(chip->regmap, dirreg, ®_val); - mutex_unlock(&chip->i2c_lock); + scoped_guard(mutex, &chip->i2c_lock) + ret = regmap_read(chip->regmap, dirreg, ®_val); if (ret < 0) return ret; @@ -605,9 +607,8 @@ static int pca953x_gpio_get_multiple(struct gpio_chip *gc, DECLARE_BITMAP(reg_val, MAX_LINE); int ret; - mutex_lock(&chip->i2c_lock); - ret = pca953x_read_regs(chip, chip->regs->input, reg_val); - mutex_unlock(&chip->i2c_lock); + scoped_guard(mutex, &chip->i2c_lock) + ret = pca953x_read_regs(chip, chip->regs->input, reg_val); if (ret) return ret; @@ -622,16 +623,15 @@ static void pca953x_gpio_set_multiple(struct gpio_chip *gc, DECLARE_BITMAP(reg_val, MAX_LINE); int ret; - mutex_lock(&chip->i2c_lock); + guard(mutex)(&chip->i2c_lock); + ret = pca953x_read_regs(chip, chip->regs->output, reg_val); if (ret) - goto exit; + return; bitmap_replace(reg_val, reg_val, bits, mask, gc->ngpio); pca953x_write_regs(chip, chip->regs->output, reg_val); -exit: - mutex_unlock(&chip->i2c_lock); } static int pca953x_gpio_set_pull_up_down(struct pca953x_chip *chip, @@ -639,7 +639,6 @@ static int pca953x_gpio_set_pull_up_down(struct pca953x_chip *chip, unsigned long config) { enum pin_config_param param = pinconf_to_config_param(config); - u8 pull_en_reg = chip->recalc_addr(chip, PCAL953X_PULL_EN, offset); u8 pull_sel_reg = chip->recalc_addr(chip, PCAL953X_PULL_SEL, offset); u8 bit = BIT(offset % BANK_SZ); @@ -652,7 +651,7 @@ static int pca953x_gpio_set_pull_up_down(struct pca953x_chip *chip, if (!(chip->driver_data & PCA_PCAL)) return -ENOTSUPP; - mutex_lock(&chip->i2c_lock); + guard(mutex)(&chip->i2c_lock); /* Configure pull-up/pull-down */ if (param == PIN_CONFIG_BIAS_PULL_UP) @@ -662,17 +661,13 @@ static int pca953x_gpio_set_pull_up_down(struct pca953x_chip *chip, else ret = 0; if (ret) - goto exit; + return ret; /* Disable/Enable pull-up/pull-down */ if (param == PIN_CONFIG_BIAS_DISABLE) - ret = regmap_write_bits(chip->regmap, pull_en_reg, bit, 0); + return regmap_write_bits(chip->regmap, pull_en_reg, bit, 0); else - ret = regmap_write_bits(chip->regmap, pull_en_reg, bit, bit); - -exit: - mutex_unlock(&chip->i2c_lock); - return ret; + return regmap_write_bits(chip->regmap, pull_en_reg, bit, bit); } static int pca953x_gpio_set_config(struct gpio_chip *gc, unsigned int offset, @@ -693,9 +688,7 @@ static int pca953x_gpio_set_config(struct gpio_chip *gc, unsigned int offset, static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios) { - struct gpio_chip *gc; - - gc = &chip->gpio_chip; + struct gpio_chip *gc = &chip->gpio_chip; gc->direction_input = pca953x_gpio_direction_input; gc->direction_output = pca953x_gpio_direction_output; @@ -712,7 +705,6 @@ static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios) gc->label = dev_name(&chip->client->dev); gc->parent = &chip->client->dev; gc->owner = THIS_MODULE; - gc->names = chip->names; } #ifdef CONFIG_GPIO_PCA953X_IRQ @@ -793,11 +785,11 @@ static int pca953x_irq_set_type(struct irq_data *d, unsigned int type) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); struct pca953x_chip *chip = gpiochip_get_data(gc); + struct device *dev = &chip->client->dev; irq_hw_number_t hwirq = irqd_to_hwirq(d); if (!(type & IRQ_TYPE_EDGE_BOTH)) { - dev_err(&chip->client->dev, "irq %d: unsupported type %d\n", - d->irq, type); + dev_err(dev, "irq %d: unsupported type %d\n", d->irq, type); return -EINVAL; } @@ -902,10 +894,8 @@ static irqreturn_t pca953x_irq_handler(int irq, void *devid) bitmap_zero(pending, MAX_LINE); - mutex_lock(&chip->i2c_lock); - ret = pca953x_irq_pending(chip, pending); - mutex_unlock(&chip->i2c_lock); - + scoped_guard(mutex, &chip->i2c_lock) + ret = pca953x_irq_pending(chip, pending); if (ret) { ret = 0; @@ -928,13 +918,15 @@ static irqreturn_t pca953x_irq_handler(int irq, void *devid) static int pca953x_irq_setup(struct pca953x_chip *chip, int irq_base) { struct i2c_client *client = chip->client; + struct device *dev = &client->dev; DECLARE_BITMAP(reg_direction, MAX_LINE); DECLARE_BITMAP(irq_stat, MAX_LINE); + struct gpio_chip *gc = &chip->gpio_chip; struct gpio_irq_chip *girq; int ret; if (dmi_first_match(pca953x_dmi_acpi_irq_info)) { - ret = pca953x_acpi_get_irq(&client->dev); + ret = pca953x_acpi_get_irq(dev); if (ret > 0) client->irq = ret; } @@ -958,7 +950,7 @@ static int pca953x_irq_setup(struct pca953x_chip *chip, int irq_base) * this purpose. */ pca953x_read_regs(chip, chip->regs->direction, reg_direction); - bitmap_and(chip->irq_stat, irq_stat, reg_direction, chip->gpio_chip.ngpio); + bitmap_and(chip->irq_stat, irq_stat, reg_direction, gc->ngpio); mutex_init(&chip->irq_lock); girq = &chip->gpio_chip.irq; @@ -972,33 +964,29 @@ static int pca953x_irq_setup(struct pca953x_chip *chip, int irq_base) girq->threaded = true; girq->first = irq_base; /* FIXME: get rid of this */ - ret = devm_request_threaded_irq(&client->dev, client->irq, - NULL, pca953x_irq_handler, - IRQF_ONESHOT | IRQF_SHARED, - dev_name(&client->dev), chip); - if (ret) { - dev_err(&client->dev, "failed to request irq %d\n", - client->irq); - return ret; - } + ret = devm_request_threaded_irq(dev, client->irq, NULL, pca953x_irq_handler, + IRQF_ONESHOT | IRQF_SHARED, dev_name(dev), + chip); + if (ret) + return dev_err_probe(dev, client->irq, "failed to request irq\n"); return 0; } #else /* CONFIG_GPIO_PCA953X_IRQ */ -static int pca953x_irq_setup(struct pca953x_chip *chip, - int irq_base) +static int pca953x_irq_setup(struct pca953x_chip *chip, int irq_base) { struct i2c_client *client = chip->client; + struct device *dev = &client->dev; if (client->irq && irq_base != -1 && (chip->driver_data & PCA_INT)) - dev_warn(&client->dev, "interrupt support not compiled in\n"); + dev_warn(dev, "interrupt support not compiled in\n"); return 0; } #endif -static int device_pca95xx_init(struct pca953x_chip *chip, u32 invert) +static int device_pca95xx_init(struct pca953x_chip *chip) { DECLARE_BITMAP(val, MAX_LINE); u8 regaddr; @@ -1008,68 +996,81 @@ static int device_pca95xx_init(struct pca953x_chip *chip, u32 invert) ret = regcache_sync_region(chip->regmap, regaddr, regaddr + NBANK(chip) - 1); if (ret) - goto out; + return ret; regaddr = chip->recalc_addr(chip, chip->regs->direction, 0); ret = regcache_sync_region(chip->regmap, regaddr, regaddr + NBANK(chip) - 1); if (ret) - goto out; + return ret; - /* set platform specific polarity inversion */ - if (invert) - bitmap_fill(val, MAX_LINE); - else - bitmap_zero(val, MAX_LINE); + /* clear polarity inversion */ + bitmap_zero(val, MAX_LINE); - ret = pca953x_write_regs(chip, chip->regs->invert, val); -out: - return ret; + return pca953x_write_regs(chip, chip->regs->invert, val); } -static int device_pca957x_init(struct pca953x_chip *chip, u32 invert) +static int device_pca957x_init(struct pca953x_chip *chip) { DECLARE_BITMAP(val, MAX_LINE); unsigned int i; int ret; - ret = device_pca95xx_init(chip, invert); + ret = device_pca95xx_init(chip); if (ret) - goto out; + return ret; /* To enable register 6, 7 to control pull up and pull down */ for (i = 0; i < NBANK(chip); i++) bitmap_set_value8(val, 0x02, i * BANK_SZ); - ret = pca953x_write_regs(chip, PCA957X_BKEN, val); + return pca953x_write_regs(chip, PCA957X_BKEN, val); +} + +static void pca953x_disable_regulator(void *reg) +{ + regulator_disable(reg); +} + +static int pca953x_get_and_enable_regulator(struct pca953x_chip *chip) +{ + struct device *dev = &chip->client->dev; + struct regulator *reg = chip->regulator; + int ret; + + reg = devm_regulator_get(dev, "vcc"); + if (IS_ERR(reg)) + return dev_err_probe(dev, PTR_ERR(reg), "reg get err\n"); + + ret = regulator_enable(reg); if (ret) - goto out; + return dev_err_probe(dev, ret, "reg en err\n"); + ret = devm_add_action_or_reset(dev, pca953x_disable_regulator, reg); + if (ret) + return ret; + + chip->regulator = reg; return 0; -out: - return ret; } static int pca953x_probe(struct i2c_client *client) { + struct device *dev = &client->dev; struct pca953x_platform_data *pdata; struct pca953x_chip *chip; - int irq_base = 0; + int irq_base; int ret; - u32 invert = 0; - struct regulator *reg; const struct regmap_config *regmap_config; - chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); + chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL); if (chip == NULL) return -ENOMEM; - pdata = dev_get_platdata(&client->dev); + pdata = dev_get_platdata(dev); if (pdata) { irq_base = pdata->irq_base; chip->gpio_start = pdata->gpio_base; - invert = pdata->invert; - chip->names = pdata->names; } else { struct gpio_desc *reset_gpio; @@ -1083,8 +1084,7 @@ static int pca953x_probe(struct i2c_client *client) * using "reset" GPIO. Otherwise any of those platform * must use _DSD method with corresponding property. */ - reset_gpio = devm_gpiod_get_optional(&client->dev, "reset", - GPIOD_OUT_LOW); + reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(reset_gpio)) return PTR_ERR(reset_gpio); } @@ -1094,26 +1094,19 @@ static int pca953x_probe(struct i2c_client *client) if (!chip->driver_data) return -ENODEV; - reg = devm_regulator_get(&client->dev, "vcc"); - if (IS_ERR(reg)) - return dev_err_probe(&client->dev, PTR_ERR(reg), "reg get err\n"); - - ret = regulator_enable(reg); - if (ret) { - dev_err(&client->dev, "reg en err: %d\n", ret); + ret = pca953x_get_and_enable_regulator(chip); + if (ret) return ret; - } - chip->regulator = reg; i2c_set_clientdata(client, chip); pca953x_setup_gpio(chip, chip->driver_data & PCA_GPIO_MASK); if (NBANK(chip) > 2 || PCA_CHIP_TYPE(chip->driver_data) == PCA957X_TYPE) { - dev_info(&client->dev, "using AI\n"); + dev_info(dev, "using AI\n"); regmap_config = &pca953x_ai_i2c_regmap; } else { - dev_info(&client->dev, "using no AI\n"); + dev_info(dev, "using no AI\n"); regmap_config = &pca953x_i2c_regmap; } @@ -1126,10 +1119,8 @@ static int pca953x_probe(struct i2c_client *client) } chip->regmap = devm_regmap_init_i2c(client, regmap_config); - if (IS_ERR(chip->regmap)) { - ret = PTR_ERR(chip->regmap); - goto err_exit; - } + if (IS_ERR(chip->regmap)) + return PTR_ERR(chip->regmap); regcache_mark_dirty(chip->regmap); @@ -1158,53 +1149,24 @@ static int pca953x_probe(struct i2c_client *client) */ if (PCA_CHIP_TYPE(chip->driver_data) == PCA957X_TYPE) { chip->regs = &pca957x_regs; - ret = device_pca957x_init(chip, invert); + ret = device_pca957x_init(chip); } else { chip->regs = &pca953x_regs; - ret = device_pca95xx_init(chip, invert); + ret = device_pca95xx_init(chip); } if (ret) - goto err_exit; + return ret; ret = pca953x_irq_setup(chip, irq_base); if (ret) - goto err_exit; - - ret = devm_gpiochip_add_data(&client->dev, &chip->gpio_chip, chip); - if (ret) - goto err_exit; - - if (pdata && pdata->setup) { - ret = pdata->setup(client, chip->gpio_chip.base, - chip->gpio_chip.ngpio, pdata->context); - if (ret < 0) - dev_warn(&client->dev, "setup failed, %d\n", ret); - } - - return 0; - -err_exit: - regulator_disable(chip->regulator); - return ret; -} - -static void pca953x_remove(struct i2c_client *client) -{ - struct pca953x_platform_data *pdata = dev_get_platdata(&client->dev); - struct pca953x_chip *chip = i2c_get_clientdata(client); - - if (pdata && pdata->teardown) { - pdata->teardown(client, chip->gpio_chip.base, - chip->gpio_chip.ngpio, pdata->context); - } + return ret; - regulator_disable(chip->regulator); + return devm_gpiochip_add_data(dev, &chip->gpio_chip, chip); } -#ifdef CONFIG_PM_SLEEP -static int pca953x_regcache_sync(struct device *dev) +static int pca953x_regcache_sync(struct pca953x_chip *chip) { - struct pca953x_chip *chip = dev_get_drvdata(dev); + struct device *dev = &chip->client->dev; int ret; u8 regaddr; @@ -1251,13 +1213,32 @@ static int pca953x_regcache_sync(struct device *dev) return 0; } +static int pca953x_restore_context(struct pca953x_chip *chip) +{ + int ret; + + guard(mutex)(&chip->i2c_lock); + + regcache_cache_only(chip->regmap, false); + regcache_mark_dirty(chip->regmap); + ret = pca953x_regcache_sync(chip); + if (ret) + return ret; + + return regcache_sync(chip->regmap); +} + +static void pca953x_save_context(struct pca953x_chip *chip) +{ + guard(mutex)(&chip->i2c_lock); + regcache_cache_only(chip->regmap, true); +} + static int pca953x_suspend(struct device *dev) { struct pca953x_chip *chip = dev_get_drvdata(dev); - mutex_lock(&chip->i2c_lock); - regcache_cache_only(chip->regmap, true); - mutex_unlock(&chip->i2c_lock); + pca953x_save_context(chip); if (atomic_read(&chip->wakeup_path)) device_set_wakeup_path(dev); @@ -1280,25 +1261,14 @@ static int pca953x_resume(struct device *dev) } } - mutex_lock(&chip->i2c_lock); - regcache_cache_only(chip->regmap, false); - regcache_mark_dirty(chip->regmap); - ret = pca953x_regcache_sync(dev); - if (ret) { - mutex_unlock(&chip->i2c_lock); - return ret; - } - - ret = regcache_sync(chip->regmap); - mutex_unlock(&chip->i2c_lock); - if (ret) { + ret = pca953x_restore_context(chip); + if (ret) dev_err(dev, "Failed to restore register map: %d\n", ret); - return ret; - } - return 0; + return ret; } -#endif + +static DEFINE_SIMPLE_DEV_PM_OPS(pca953x_pm_ops, pca953x_suspend, pca953x_resume); /* convenience to stop overlong match-table lines */ #define OF_653X(__nrgpio, __int) ((void *)(__nrgpio | PCAL653X_TYPE | __int)) @@ -1356,17 +1326,14 @@ static const struct of_device_id pca953x_dt_ids[] = { MODULE_DEVICE_TABLE(of, pca953x_dt_ids); -static SIMPLE_DEV_PM_OPS(pca953x_pm_ops, pca953x_suspend, pca953x_resume); - static struct i2c_driver pca953x_driver = { .driver = { .name = "pca953x", - .pm = &pca953x_pm_ops, + .pm = pm_sleep_ptr(&pca953x_pm_ops), .of_match_table = pca953x_dt_ids, .acpi_match_table = pca953x_acpi_ids, }, .probe = pca953x_probe, - .remove = pca953x_remove, .id_table = pca953x_id, }; diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c index 86e69cde04da..d8b1baae6357 100644 --- a/drivers/gpio/gpio-rcar.c +++ b/drivers/gpio/gpio-rcar.c @@ -583,14 +583,13 @@ err0: return ret; } -static int gpio_rcar_remove(struct platform_device *pdev) +static void gpio_rcar_remove(struct platform_device *pdev) { struct gpio_rcar_priv *p = platform_get_drvdata(pdev); gpiochip_remove(&p->gpio_chip); pm_runtime_disable(&pdev->dev); - return 0; } #ifdef CONFIG_PM_SLEEP @@ -658,7 +657,7 @@ static SIMPLE_DEV_PM_OPS(gpio_rcar_pm_ops, gpio_rcar_suspend, gpio_rcar_resume); static struct platform_driver gpio_rcar_device_driver = { .probe = gpio_rcar_probe, - .remove = gpio_rcar_remove, + .remove_new = gpio_rcar_remove, .driver = { .name = "gpio_rcar", .pm = &gpio_rcar_pm_ops, diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c index b35b9604413f..23040a8cea34 100644 --- a/drivers/gpio/gpio-rockchip.c +++ b/drivers/gpio/gpio-rockchip.c @@ -778,14 +778,12 @@ static int rockchip_gpio_probe(struct platform_device *pdev) return 0; } -static int rockchip_gpio_remove(struct platform_device *pdev) +static void rockchip_gpio_remove(struct platform_device *pdev) { struct rockchip_pin_bank *bank = platform_get_drvdata(pdev); clk_disable_unprepare(bank->clk); gpiochip_remove(&bank->gpio_chip); - - return 0; } static const struct of_device_id rockchip_gpio_match[] = { @@ -796,7 +794,7 @@ static const struct of_device_id rockchip_gpio_match[] = { static struct platform_driver rockchip_gpio_driver = { .probe = rockchip_gpio_probe, - .remove = rockchip_gpio_remove, + .remove_new = rockchip_gpio_remove, .driver = { .name = "rockchip-gpio", .of_match_table = rockchip_gpio_match, diff --git a/drivers/gpio/gpio-sim.c b/drivers/gpio/gpio-sim.c index 44bf1709a648..1928209491e1 100644 --- a/drivers/gpio/gpio-sim.c +++ b/drivers/gpio/gpio-sim.c @@ -12,6 +12,8 @@ #include <linux/completion.h> #include <linux/configfs.h> #include <linux/device.h> +#include <linux/err.h> +#include <linux/gpio/consumer.h> #include <linux/gpio/driver.h> #include <linux/gpio/machine.h> #include <linux/idr.h> @@ -30,8 +32,7 @@ #include <linux/string.h> #include <linux/string_helpers.h> #include <linux/sysfs.h> - -#include "gpiolib.h" +#include <linux/types.h> #define GPIO_SIM_NGPIO_MAX 1024 #define GPIO_SIM_PROP_MAX 4 /* Max 3 properties + sentinel. */ @@ -41,6 +42,8 @@ static DEFINE_IDA(gpio_sim_ida); struct gpio_sim_chip { struct gpio_chip gc; + struct device *dev; + unsigned long *request_map; unsigned long *direction_map; unsigned long *value_map; unsigned long *pull_map; @@ -64,16 +67,11 @@ static int gpio_sim_apply_pull(struct gpio_sim_chip *chip, unsigned int offset, int value) { int irq, irq_type, ret; - struct gpio_desc *desc; - struct gpio_chip *gc; - - gc = &chip->gc; - desc = &gc->gpiodev->descs[offset]; guard(mutex)(&chip->lock); - if (test_bit(FLAG_REQUESTED, &desc->flags) && - !test_bit(FLAG_IS_OUT, &desc->flags)) { + if (test_bit(offset, chip->request_map) && + test_bit(offset, chip->direction_map)) { if (value == !!test_bit(offset, chip->value_map)) goto set_pull; @@ -100,8 +98,8 @@ static int gpio_sim_apply_pull(struct gpio_sim_chip *chip, set_value: /* Change the value unless we're actively driving the line. */ - if (!test_bit(FLAG_REQUESTED, &desc->flags) || - !test_bit(FLAG_IS_OUT, &desc->flags)) + if (!test_bit(offset, chip->request_map) || + test_bit(offset, chip->direction_map)) __assign_bit(offset, chip->value_map, value); set_pull: @@ -181,8 +179,8 @@ static int gpio_sim_get_direction(struct gpio_chip *gc, unsigned int offset) return direction ? GPIO_LINE_DIRECTION_IN : GPIO_LINE_DIRECTION_OUT; } -static int gpio_sim_set_config(struct gpio_chip *gc, - unsigned int offset, unsigned long config) +static int gpio_sim_set_config(struct gpio_chip *gc, unsigned int offset, + unsigned long config) { struct gpio_sim_chip *chip = gpiochip_get_data(gc); @@ -205,13 +203,25 @@ static int gpio_sim_to_irq(struct gpio_chip *gc, unsigned int offset) return irq_create_mapping(chip->irq_sim, offset); } -static void gpio_sim_free(struct gpio_chip *gc, unsigned int offset) +static int gpio_sim_request(struct gpio_chip *gc, unsigned int offset) { struct gpio_sim_chip *chip = gpiochip_get_data(gc); scoped_guard(mutex, &chip->lock) + __set_bit(offset, chip->request_map); + + return 0; +} + +static void gpio_sim_free(struct gpio_chip *gc, unsigned int offset) +{ + struct gpio_sim_chip *chip = gpiochip_get_data(gc); + + scoped_guard(mutex, &chip->lock) { __assign_bit(offset, chip->value_map, !!test_bit(offset, chip->pull_map)); + __clear_bit(offset, chip->request_map); + } } static ssize_t gpio_sim_sysfs_val_show(struct device *dev, @@ -283,6 +293,13 @@ static void gpio_sim_mutex_destroy(void *data) mutex_destroy(lock); } +static void gpio_sim_put_device(void *data) +{ + struct device *dev = data; + + put_device(dev); +} + static void gpio_sim_dispose_mappings(void *data) { struct gpio_sim_chip *chip = data; @@ -296,7 +313,7 @@ static void gpio_sim_sysfs_remove(void *data) { struct gpio_sim_chip *chip = data; - sysfs_remove_groups(&chip->gc.gpiodev->dev.kobj, chip->attr_groups); + sysfs_remove_groups(&chip->dev->kobj, chip->attr_groups); } static int gpio_sim_setup_sysfs(struct gpio_sim_chip *chip) @@ -353,14 +370,18 @@ static int gpio_sim_setup_sysfs(struct gpio_sim_chip *chip) chip->attr_groups[i] = attr_group; } - ret = sysfs_create_groups(&chip->gc.gpiodev->dev.kobj, - chip->attr_groups); + ret = sysfs_create_groups(&chip->dev->kobj, chip->attr_groups); if (ret) return ret; return devm_add_action_or_reset(dev, gpio_sim_sysfs_remove, chip); } +static int gpio_sim_dev_match_fwnode(struct device *dev, void *data) +{ + return device_match_fwnode(dev, data); +} + static int gpio_sim_add_bank(struct fwnode_handle *swnode, struct device *dev) { struct gpio_sim_chip *chip; @@ -388,6 +409,10 @@ static int gpio_sim_add_bank(struct fwnode_handle *swnode, struct device *dev) if (!chip) return -ENOMEM; + chip->request_map = devm_bitmap_zalloc(dev, num_lines, GFP_KERNEL); + if (!chip->request_map) + return -ENOMEM; + chip->direction_map = devm_bitmap_alloc(dev, num_lines, GFP_KERNEL); if (!chip->direction_map) return -ENOMEM; @@ -433,6 +458,7 @@ static int gpio_sim_add_bank(struct fwnode_handle *swnode, struct device *dev) gc->get_direction = gpio_sim_get_direction; gc->set_config = gpio_sim_set_config; gc->to_irq = gpio_sim_to_irq; + gc->request = gpio_sim_request; gc->free = gpio_sim_free; gc->can_sleep = true; @@ -440,8 +466,16 @@ static int gpio_sim_add_bank(struct fwnode_handle *swnode, struct device *dev) if (ret) return ret; - /* Used by sysfs and configfs callbacks. */ - dev_set_drvdata(&gc->gpiodev->dev, chip); + chip->dev = device_find_child(dev, swnode, gpio_sim_dev_match_fwnode); + if (!chip->dev) + return -ENODEV; + + ret = devm_add_action_or_reset(dev, gpio_sim_put_device, chip->dev); + if (ret) + return ret; + + /* Used by sysfs callbacks. */ + dev_set_drvdata(chip->dev, chip); return gpio_sim_setup_sysfs(chip); } @@ -1438,10 +1472,10 @@ static const struct config_item_type gpio_sim_device_config_group_type = { static struct config_group * gpio_sim_config_make_device_group(struct config_group *group, const char *name) { - struct gpio_sim_device *dev __free(kfree) = NULL; int id; - dev = kzalloc(sizeof(*dev), GFP_KERNEL); + struct gpio_sim_device *dev __free(kfree) = kzalloc(sizeof(*dev), + GFP_KERNEL); if (!dev) return ERR_PTR(-ENOMEM); diff --git a/drivers/gpio/gpio-tb10x.c b/drivers/gpio/gpio-tb10x.c index f96d260a4a19..e8c1485b9c73 100644 --- a/drivers/gpio/gpio-tb10x.c +++ b/drivers/gpio/gpio-tb10x.c @@ -215,7 +215,7 @@ err_remove_domain: return ret; } -static int tb10x_gpio_remove(struct platform_device *pdev) +static void tb10x_gpio_remove(struct platform_device *pdev) { struct tb10x_gpio *tb10x_gpio = platform_get_drvdata(pdev); @@ -225,8 +225,6 @@ static int tb10x_gpio_remove(struct platform_device *pdev) kfree(tb10x_gpio->domain->gc); irq_domain_remove(tb10x_gpio->domain); } - - return 0; } static const struct of_device_id tb10x_gpio_dt_ids[] = { @@ -237,7 +235,7 @@ MODULE_DEVICE_TABLE(of, tb10x_gpio_dt_ids); static struct platform_driver tb10x_gpio_driver = { .probe = tb10x_gpio_probe, - .remove = tb10x_gpio_remove, + .remove_new = tb10x_gpio_remove, .driver = { .name = "tb10x-gpio", .of_match_table = tb10x_gpio_dt_ids, diff --git a/drivers/gpio/gpio-ts5500.c b/drivers/gpio/gpio-ts5500.c index 8e03614c7a24..90f8e9e9915e 100644 --- a/drivers/gpio/gpio-ts5500.c +++ b/drivers/gpio/gpio-ts5500.c @@ -412,13 +412,11 @@ static int ts5500_dio_probe(struct platform_device *pdev) return 0; } -static int ts5500_dio_remove(struct platform_device *pdev) +static void ts5500_dio_remove(struct platform_device *pdev) { struct ts5500_priv *priv = platform_get_drvdata(pdev); ts5500_disable_irq(priv); - - return 0; } static const struct platform_device_id ts5500_dio_ids[] = { @@ -435,7 +433,7 @@ static struct platform_driver ts5500_dio_driver = { .name = "ts5500-dio", }, .probe = ts5500_dio_probe, - .remove = ts5500_dio_remove, + .remove_new = ts5500_dio_remove, .id_table = ts5500_dio_ids, }; diff --git a/drivers/gpio/gpio-uniphier.c b/drivers/gpio/gpio-uniphier.c index 9725b7aa18a7..1f440707f8f4 100644 --- a/drivers/gpio/gpio-uniphier.c +++ b/drivers/gpio/gpio-uniphier.c @@ -414,13 +414,11 @@ static int uniphier_gpio_probe(struct platform_device *pdev) return 0; } -static int uniphier_gpio_remove(struct platform_device *pdev) +static void uniphier_gpio_remove(struct platform_device *pdev) { struct uniphier_gpio_priv *priv = platform_get_drvdata(pdev); irq_domain_remove(priv->domain); - - return 0; } static int __maybe_unused uniphier_gpio_suspend(struct device *dev) @@ -482,7 +480,7 @@ MODULE_DEVICE_TABLE(of, uniphier_gpio_match); static struct platform_driver uniphier_gpio_driver = { .probe = uniphier_gpio_probe, - .remove = uniphier_gpio_remove, + .remove_new = uniphier_gpio_remove, .driver = { .name = "uniphier-gpio", .of_match_table = uniphier_gpio_match, diff --git a/drivers/gpio/gpio-vf610.c b/drivers/gpio/gpio-vf610.c index 656d6b1dddb5..444501c56a3b 100644 --- a/drivers/gpio/gpio-vf610.c +++ b/drivers/gpio/gpio-vf610.c @@ -25,6 +25,7 @@ struct fsl_gpio_soc_data { /* SoCs has a Port Data Direction Register (PDDR) */ bool have_paddr; + bool have_dual_base; }; struct vf610_gpio_port { @@ -60,13 +61,26 @@ struct vf610_gpio_port { #define PORT_INT_EITHER_EDGE 0xb #define PORT_INT_LOGIC_ONE 0xc +#define IMX8ULP_GPIO_BASE_OFF 0x40 +#define IMX8ULP_BASE_OFF 0x80 + +static const struct fsl_gpio_soc_data vf610_data = { + .have_dual_base = true, +}; + static const struct fsl_gpio_soc_data imx_data = { .have_paddr = true, + .have_dual_base = true, +}; + +static const struct fsl_gpio_soc_data imx8ulp_data = { + .have_paddr = true, }; static const struct of_device_id vf610_gpio_dt_ids[] = { - { .compatible = "fsl,vf610-gpio", .data = NULL, }, + { .compatible = "fsl,vf610-gpio", .data = &vf610_data }, { .compatible = "fsl,imx7ulp-gpio", .data = &imx_data, }, + { .compatible = "fsl,imx8ulp-gpio", .data = &imx8ulp_data, }, { /* sentinel */ } }; @@ -86,7 +100,7 @@ static int vf610_gpio_get(struct gpio_chip *gc, unsigned int gpio) unsigned long mask = BIT(gpio); unsigned long offset = GPIO_PDIR; - if (port->sdata && port->sdata->have_paddr) { + if (port->sdata->have_paddr) { mask &= vf610_gpio_readl(port->gpio_base + GPIO_PDDR); if (mask) offset = GPIO_PDOR; @@ -110,7 +124,7 @@ static int vf610_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) unsigned long mask = BIT(gpio); u32 val; - if (port->sdata && port->sdata->have_paddr) { + if (port->sdata->have_paddr) { val = vf610_gpio_readl(port->gpio_base + GPIO_PDDR); val &= ~mask; vf610_gpio_writel(val, port->gpio_base + GPIO_PDDR); @@ -128,7 +142,7 @@ static int vf610_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, vf610_gpio_set(chip, gpio, value); - if (port->sdata && port->sdata->have_paddr) { + if (port->sdata->have_paddr) { val = vf610_gpio_readl(port->gpio_base + GPIO_PDDR); val |= mask; vf610_gpio_writel(val, port->gpio_base + GPIO_PDDR); @@ -264,19 +278,41 @@ static int vf610_gpio_probe(struct platform_device *pdev) struct gpio_irq_chip *girq; int i; int ret; + bool dual_base; port = devm_kzalloc(dev, sizeof(*port), GFP_KERNEL); if (!port) return -ENOMEM; port->sdata = of_device_get_match_data(dev); - port->base = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(port->base)) - return PTR_ERR(port->base); - port->gpio_base = devm_platform_ioremap_resource(pdev, 1); - if (IS_ERR(port->gpio_base)) - return PTR_ERR(port->gpio_base); + dual_base = port->sdata->have_dual_base; + + /* + * Handle legacy compatible combinations which used two reg values + * for the i.MX8ULP and i.MX93. + */ + if (device_is_compatible(dev, "fsl,imx7ulp-gpio") && + (device_is_compatible(dev, "fsl,imx93-gpio") || + (device_is_compatible(dev, "fsl,imx8ulp-gpio")))) + dual_base = true; + + if (dual_base) { + port->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(port->base)) + return PTR_ERR(port->base); + + port->gpio_base = devm_platform_ioremap_resource(pdev, 1); + if (IS_ERR(port->gpio_base)) + return PTR_ERR(port->gpio_base); + } else { + port->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(port->base)) + return PTR_ERR(port->base); + + port->gpio_base = port->base + IMX8ULP_GPIO_BASE_OFF; + port->base = port->base + IMX8ULP_BASE_OFF; + } port->irq = platform_get_irq(pdev, 0); if (port->irq < 0) diff --git a/drivers/gpio/gpio-xgene-sb.c b/drivers/gpio/gpio-xgene-sb.c index a809609ee957..bd5befa807c3 100644 --- a/drivers/gpio/gpio-xgene-sb.c +++ b/drivers/gpio/gpio-xgene-sb.c @@ -15,7 +15,6 @@ #include <linux/gpio/driver.h> #include <linux/acpi.h> -#include "gpiolib.h" #include "gpiolib-acpi.h" /* Common property names */ @@ -296,15 +295,13 @@ static int xgene_gpio_sb_probe(struct platform_device *pdev) return ret; } -static int xgene_gpio_sb_remove(struct platform_device *pdev) +static void xgene_gpio_sb_remove(struct platform_device *pdev) { struct xgene_gpio_sb *priv = platform_get_drvdata(pdev); acpi_gpiochip_free_interrupts(&priv->gc); irq_domain_remove(priv->irq_domain); - - return 0; } static const struct of_device_id xgene_gpio_sb_of_match[] = { @@ -328,7 +325,7 @@ static struct platform_driver xgene_gpio_sb_driver = { .acpi_match_table = ACPI_PTR(xgene_gpio_sb_acpi_match), }, .probe = xgene_gpio_sb_probe, - .remove = xgene_gpio_sb_remove, + .remove_new = xgene_gpio_sb_remove, }; module_platform_driver(xgene_gpio_sb_driver); diff --git a/drivers/gpio/gpio-xgs-iproc.c b/drivers/gpio/gpio-xgs-iproc.c index 2d23b27d55af..d445eea03687 100644 --- a/drivers/gpio/gpio-xgs-iproc.c +++ b/drivers/gpio/gpio-xgs-iproc.c @@ -291,7 +291,7 @@ static int iproc_gpio_probe(struct platform_device *pdev) return 0; } -static int iproc_gpio_remove(struct platform_device *pdev) +static void iproc_gpio_remove(struct platform_device *pdev) { struct iproc_gpio_chip *chip = platform_get_drvdata(pdev); @@ -302,8 +302,6 @@ static int iproc_gpio_remove(struct platform_device *pdev) val &= ~IPROC_CCA_INT_F_GPIOINT; writel_relaxed(val, chip->intr + IPROC_CCA_INT_MASK); } - - return 0; } static const struct of_device_id bcm_iproc_gpio_of_match[] = { @@ -318,7 +316,7 @@ static struct platform_driver bcm_iproc_gpio_driver = { .of_match_table = bcm_iproc_gpio_of_match, }, .probe = iproc_gpio_probe, - .remove = iproc_gpio_remove, + .remove_new = iproc_gpio_remove, }; module_platform_driver(bcm_iproc_gpio_driver); diff --git a/drivers/gpio/gpio-xilinx.c b/drivers/gpio/gpio-xilinx.c index a16945e8319e..823198368250 100644 --- a/drivers/gpio/gpio-xilinx.c +++ b/drivers/gpio/gpio-xilinx.c @@ -332,7 +332,7 @@ static int __maybe_unused xgpio_suspend(struct device *dev) * * Return: 0 always */ -static int xgpio_remove(struct platform_device *pdev) +static void xgpio_remove(struct platform_device *pdev) { struct xgpio_instance *gpio = platform_get_drvdata(pdev); @@ -340,8 +340,6 @@ static int xgpio_remove(struct platform_device *pdev) pm_runtime_put_noidle(&pdev->dev); pm_runtime_disable(&pdev->dev); clk_disable_unprepare(gpio->clk); - - return 0; } /** @@ -715,7 +713,7 @@ MODULE_DEVICE_TABLE(of, xgpio_of_match); static struct platform_driver xgpio_plat_driver = { .probe = xgpio_probe, - .remove = xgpio_remove, + .remove_new = xgpio_remove, .driver = { .name = "gpio-xilinx", .of_match_table = xgpio_of_match, diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c index 324e942c0650..466e23031afc 100644 --- a/drivers/gpio/gpio-zynq.c +++ b/drivers/gpio/gpio-zynq.c @@ -1010,7 +1010,7 @@ err_pm_dis: * * Return: 0 always */ -static int zynq_gpio_remove(struct platform_device *pdev) +static void zynq_gpio_remove(struct platform_device *pdev) { struct zynq_gpio *gpio = platform_get_drvdata(pdev); int ret; @@ -1022,7 +1022,6 @@ static int zynq_gpio_remove(struct platform_device *pdev) clk_disable_unprepare(gpio->clk); device_set_wakeup_capable(&pdev->dev, 0); pm_runtime_disable(&pdev->dev); - return 0; } static struct platform_driver zynq_gpio_driver = { @@ -1032,7 +1031,7 @@ static struct platform_driver zynq_gpio_driver = { .of_match_table = zynq_gpio_of_match, }, .probe = zynq_gpio_probe, - .remove = zynq_gpio_remove, + .remove_new = zynq_gpio_remove, }; module_platform_driver(zynq_gpio_driver); diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 51e41676de0b..88066826d8e5 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -143,7 +143,6 @@ static int acpi_gpiochip_find(struct gpio_chip *gc, void *data) */ static struct gpio_desc *acpi_get_gpiod(char *path, unsigned int pin) { - struct gpio_chip *chip; acpi_handle handle; acpi_status status; @@ -151,40 +150,17 @@ static struct gpio_desc *acpi_get_gpiod(char *path, unsigned int pin) if (ACPI_FAILURE(status)) return ERR_PTR(-ENODEV); - chip = gpiochip_find(handle, acpi_gpiochip_find); - if (!chip) + struct gpio_device *gdev __free(gpio_device_put) = + gpio_device_find(handle, acpi_gpiochip_find); + if (!gdev) return ERR_PTR(-EPROBE_DEFER); - return gpiochip_get_desc(chip, pin); -} - -/** - * acpi_get_and_request_gpiod - Translate ACPI GPIO pin to GPIO descriptor and - * hold a refcount to the GPIO device. - * @path: ACPI GPIO controller full path name, (e.g. "\\_SB.GPO1") - * @pin: ACPI GPIO pin number (0-based, controller-relative) - * @label: Label to pass to gpiod_request() - * - * This function is a simple pass-through to acpi_get_gpiod(), except that - * as it is intended for use outside of the GPIO layer (in a similar fashion to - * gpiod_get_index() for example) it also holds a reference to the GPIO device. - */ -struct gpio_desc *acpi_get_and_request_gpiod(char *path, unsigned int pin, char *label) -{ - struct gpio_desc *gpio; - int ret; - - gpio = acpi_get_gpiod(path, pin); - if (IS_ERR(gpio)) - return gpio; - - ret = gpiod_request(gpio, label); - if (ret) - return ERR_PTR(ret); - - return gpio; + /* + * FIXME: keep track of the reference to the GPIO device somehow + * instead of putting it here. + */ + return gpio_device_get_desc(gdev, pin); } -EXPORT_SYMBOL_GPL(acpi_get_and_request_gpiod); static irqreturn_t acpi_gpio_irq_handler(int irq, void *data) { @@ -437,6 +413,11 @@ static acpi_status acpi_gpiochip_alloc_event(struct acpi_resource *ares, if (!handler) return AE_OK; + if (acpi_gpio_in_ignore_list(ignore_interrupt, dev_name(chip->parent), pin)) { + dev_info(chip->parent, "Ignoring interrupt on pin %u\n", pin); + return AE_OK; + } + desc = acpi_request_own_gpiod(chip, agpio, 0, "ACPI:Event"); if (IS_ERR(desc)) { dev_err(chip->parent, @@ -461,11 +442,6 @@ static acpi_status acpi_gpiochip_alloc_event(struct acpi_resource *ares, goto fail_unlock_irq; } - if (acpi_gpio_in_ignore_list(ignore_interrupt, dev_name(chip->parent), pin)) { - dev_info(chip->parent, "Ignoring interrupt on pin %u\n", pin); - return AE_OK; - } - event = kzalloc(sizeof(*event), GFP_KERNEL); if (!event) goto fail_unlock_irq; @@ -1655,6 +1631,26 @@ static const struct dmi_system_id gpiolib_acpi_quirks[] __initconst = { .ignore_wake = "SYNA1202:00@16", }, }, + { + /* + * On the Peaq C1010 2-in-1 INT33FC:00 pin 3 is connected to + * a "dolby" button. At the ACPI level an _AEI event-handler + * is connected which sets an ACPI variable to 1 on both + * edges. This variable can be polled + cleared to 0 using + * WMI. But since the variable is set on both edges the WMI + * interface is pretty useless even when polling. + * So instead the x86-android-tablets code instantiates + * a gpio-keys platform device for it. + * Ignore the _AEI handler for the pin, so that it is not busy. + */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "PEAQ"), + DMI_MATCH(DMI_PRODUCT_NAME, "PEAQ PMM C1010 MD99187"), + }, + .driver_data = &(struct acpi_gpiolib_dmi_quirk) { + .ignore_interrupt = "INT33FC:00@3", + }, + }, {} /* Terminating entry */ }; diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c index e39d344feb28..31fc71a612c2 100644 --- a/drivers/gpio/gpiolib-cdev.c +++ b/drivers/gpio/gpiolib-cdev.c @@ -572,7 +572,7 @@ struct linereq { DECLARE_KFIFO_PTR(events, struct gpio_v2_line_event); atomic_t seqno; struct mutex config_mutex; - struct line lines[]; + struct line lines[] __counted_by(num_lines); }; #define GPIO_V2_LINE_BIAS_FLAGS \ @@ -1656,6 +1656,7 @@ static int linereq_create(struct gpio_device *gdev, void __user *ip) lr = kzalloc(struct_size(lr, lines, ulr.num_lines), GFP_KERNEL); if (!lr) return -ENOMEM; + lr->num_lines = ulr.num_lines; lr->gdev = gpio_device_get(gdev); @@ -1684,7 +1685,6 @@ static int linereq_create(struct gpio_device *gdev, void __user *ip) lr->event_buffer_size = GPIO_V2_LINES_MAX * 16; atomic_set(&lr->seqno, 0); - lr->num_lines = ulr.num_lines; /* Request each GPIO */ for (i = 0; i < ulr.num_lines; i++) { diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index 531faabead0f..a4b48d53ab4d 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -127,10 +127,10 @@ static int of_gpiochip_match_node_and_xlate(struct gpio_chip *chip, void *data) chip->of_xlate(chip, gpiospec, NULL) >= 0; } -static struct gpio_chip *of_find_gpiochip_by_xlate( - struct of_phandle_args *gpiospec) +static struct gpio_device * +of_find_gpio_device_by_xlate(struct of_phandle_args *gpiospec) { - return gpiochip_find(gpiospec, of_gpiochip_match_node_and_xlate); + return gpio_device_find(gpiospec, of_gpiochip_match_node_and_xlate); } static struct gpio_desc *of_xlate_and_get_gpiod_flags(struct gpio_chip *chip, @@ -192,6 +192,15 @@ static void of_gpio_try_fixup_polarity(const struct device_node *np, */ { "himax,hx8357", "gpios-reset", false }, { "himax,hx8369", "gpios-reset", false }, + /* + * The rb-gpios semantics was undocumented and qi,lb60 (along with + * the ingenic driver) got it wrong. The active state encodes the + * NAND ready state, which is high level. Since there's no signal + * inverter on this board, it should be active-high. Let's fix that + * here for older DTs so we can re-use the generic nand_gpio_waitrdy() + * helper, and be consistent with what other drivers do. + */ + { "qi,lb60", "rb-gpios", true }, #endif }; unsigned int i; @@ -363,7 +372,6 @@ static struct gpio_desc *of_get_named_gpiod_flags(const struct device_node *np, const char *propname, int index, enum of_gpio_flags *flags) { struct of_phandle_args gpiospec; - struct gpio_chip *chip; struct gpio_desc *desc; int ret; @@ -375,13 +383,15 @@ static struct gpio_desc *of_get_named_gpiod_flags(const struct device_node *np, return ERR_PTR(ret); } - chip = of_find_gpiochip_by_xlate(&gpiospec); - if (!chip) { + struct gpio_device *gdev __free(gpio_device_put) = + of_find_gpio_device_by_xlate(&gpiospec); + if (!gdev) { desc = ERR_PTR(-EPROBE_DEFER); goto out; } - desc = of_xlate_and_get_gpiod_flags(chip, &gpiospec, flags); + desc = of_xlate_and_get_gpiod_flags(gpio_device_get_chip(gdev), + &gpiospec, flags); if (IS_ERR(desc)) goto out; @@ -611,6 +621,33 @@ static struct gpio_desc *of_find_mt2701_gpio(struct device_node *np, return desc; } +/* + * Trigger sources are special, they allow us to use any GPIO as a LED trigger + * and have the name "trigger-sources" no matter which kind of phandle it is + * pointing to, whether to a GPIO, a USB host, a network PHY etc. So in this case + * we allow looking something up that is not named "foo-gpios". + */ +static struct gpio_desc *of_find_trigger_gpio(struct device_node *np, + const char *con_id, + unsigned int idx, + enum of_gpio_flags *of_flags) +{ + struct gpio_desc *desc; + + if (!IS_ENABLED(CONFIG_LEDS_TRIGGER_GPIO)) + return ERR_PTR(-ENOENT); + + if (!con_id || strcmp(con_id, "trigger-sources")) + return ERR_PTR(-ENOENT); + + desc = of_get_named_gpiod_flags(np, con_id, idx, of_flags); + if (!gpiod_not_found(desc)) + pr_debug("%s is used as a trigger\n", of_node_full_name(np)); + + return desc; +} + + typedef struct gpio_desc *(*of_find_gpio_quirk)(struct device_node *np, const char *con_id, unsigned int idx, @@ -618,6 +655,7 @@ typedef struct gpio_desc *(*of_find_gpio_quirk)(struct device_node *np, static const of_find_gpio_quirk of_find_gpio_quirks[] = { of_find_gpio_rename, of_find_mt2701_gpio, + of_find_trigger_gpio, NULL }; @@ -813,16 +851,16 @@ static int of_gpiochip_match_node(struct gpio_chip *chip, void *data) return device_match_of_node(&chip->gpiodev->dev, data); } -static struct gpio_chip *of_find_gpiochip_by_node(struct device_node *np) +static struct gpio_device *of_find_gpio_device_by_node(struct device_node *np) { - return gpiochip_find(np, of_gpiochip_match_node); + return gpio_device_find(np, of_gpiochip_match_node); } static int of_gpio_notify(struct notifier_block *nb, unsigned long action, void *arg) { + struct gpio_device *gdev __free(gpio_device_put) = NULL; struct of_reconfig_data *rd = arg; - struct gpio_chip *chip; int ret; /* @@ -834,38 +872,38 @@ static int of_gpio_notify(struct notifier_block *nb, unsigned long action, switch (of_reconfig_get_state_change(action, arg)) { case OF_RECONFIG_CHANGE_ADD: if (!of_property_read_bool(rd->dn, "gpio-hog")) - return NOTIFY_OK; /* not for us */ + return NOTIFY_DONE; /* not for us */ if (of_node_test_and_set_flag(rd->dn, OF_POPULATED)) - return NOTIFY_OK; + return NOTIFY_DONE; - chip = of_find_gpiochip_by_node(rd->dn->parent); - if (chip == NULL) - return NOTIFY_OK; /* not for us */ + gdev = of_find_gpio_device_by_node(rd->dn->parent); + if (!gdev) + return NOTIFY_DONE; /* not for us */ - ret = of_gpiochip_add_hog(chip, rd->dn); + ret = of_gpiochip_add_hog(gpio_device_get_chip(gdev), rd->dn); if (ret < 0) { pr_err("%s: failed to add hogs for %pOF\n", __func__, rd->dn); of_node_clear_flag(rd->dn, OF_POPULATED); return notifier_from_errno(ret); } - break; + return NOTIFY_OK; case OF_RECONFIG_CHANGE_REMOVE: if (!of_node_check_flag(rd->dn, OF_POPULATED)) - return NOTIFY_OK; /* already depopulated */ + return NOTIFY_DONE; /* already depopulated */ - chip = of_find_gpiochip_by_node(rd->dn->parent); - if (chip == NULL) - return NOTIFY_OK; /* not for us */ + gdev = of_find_gpio_device_by_node(rd->dn->parent); + if (!gdev) + return NOTIFY_DONE; /* not for us */ - of_gpiochip_remove_hog(chip, rd->dn); + of_gpiochip_remove_hog(gpio_device_get_chip(gdev), rd->dn); of_node_clear_flag(rd->dn, OF_POPULATED); - break; + return NOTIFY_OK; } - return NOTIFY_OK; + return NOTIFY_DONE; } struct notifier_block gpio_of_notifier = { diff --git a/drivers/gpio/gpiolib-swnode.c b/drivers/gpio/gpiolib-swnode.c index b5a6eaf3729b..fa52bdb1a29a 100644 --- a/drivers/gpio/gpiolib-swnode.c +++ b/drivers/gpio/gpiolib-swnode.c @@ -31,22 +31,17 @@ static void swnode_format_propname(const char *con_id, char *propname, strscpy(propname, "gpios", max_size); } -static int swnode_gpiochip_match_name(struct gpio_chip *chip, void *data) +static struct gpio_device *swnode_get_gpio_device(struct fwnode_handle *fwnode) { - return !strcmp(chip->label, data); -} - -static struct gpio_chip *swnode_get_chip(struct fwnode_handle *fwnode) -{ - const struct software_node *chip_node; - struct gpio_chip *chip; + const struct software_node *gdev_node; + struct gpio_device *gdev; - chip_node = to_software_node(fwnode); - if (!chip_node || !chip_node->name) + gdev_node = to_software_node(fwnode); + if (!gdev_node || !gdev_node->name) return ERR_PTR(-EINVAL); - chip = gpiochip_find((void *)chip_node->name, swnode_gpiochip_match_name); - return chip ?: ERR_PTR(-EPROBE_DEFER); + gdev = gpio_device_find_by_label(gdev_node->name); + return gdev ?: ERR_PTR(-EPROBE_DEFER); } struct gpio_desc *swnode_find_gpio(struct fwnode_handle *fwnode, @@ -55,7 +50,6 @@ struct gpio_desc *swnode_find_gpio(struct fwnode_handle *fwnode, { const struct software_node *swnode; struct fwnode_reference_args args; - struct gpio_chip *chip; struct gpio_desc *desc; char propname[32]; /* 32 is max size of property name */ int error; @@ -77,12 +71,17 @@ struct gpio_desc *swnode_find_gpio(struct fwnode_handle *fwnode, return ERR_PTR(error); } - chip = swnode_get_chip(args.fwnode); + struct gpio_device *gdev __free(gpio_device_put) = + swnode_get_gpio_device(args.fwnode); fwnode_handle_put(args.fwnode); - if (IS_ERR(chip)) - return ERR_CAST(chip); + if (IS_ERR(gdev)) + return ERR_CAST(gdev); - desc = gpiochip_get_desc(chip, args.args[0]); + /* + * FIXME: The GPIO device reference is put at return but the descriptor + * is passed on. Find a proper solution. + */ + desc = gpio_device_get_desc(gdev, args.args[0]); *flags = args.args[1]; /* We expect native GPIO flags */ pr_debug("%s: parsed '%s' property of node '%pfwP[%d]' - status (%d)\n", diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c index 50503a4525eb..6f309a3b2d9a 100644 --- a/drivers/gpio/gpiolib-sysfs.c +++ b/drivers/gpio/gpiolib-sysfs.c @@ -814,7 +814,7 @@ static int __init gpiolib_sysfs_init(void) * gpiochip_sysfs_register() acquires a mutex. This is unsafe * and needs to be fixed. * - * Also it would be nice to use gpiochip_find() here so we + * Also it would be nice to use gpio_device_find() here so we * can keep gpio_chips local to gpiolib.c, but the yield of * gpio_lock prevents us from doing this. */ diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 40a0022ea719..cbafcd95243e 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -20,6 +20,7 @@ #include <linux/seq_file.h> #include <linux/slab.h> #include <linux/spinlock.h> +#include <linux/string.h> #include <linux/gpio.h> #include <linux/gpio/driver.h> @@ -146,27 +147,49 @@ struct gpio_desc *gpio_to_desc(unsigned gpio) } EXPORT_SYMBOL_GPL(gpio_to_desc); +/* This function is deprecated and will be removed soon, don't use. */ +struct gpio_desc *gpiochip_get_desc(struct gpio_chip *gc, + unsigned int hwnum) +{ + return gpio_device_get_desc(gc->gpiodev, hwnum); +} +EXPORT_SYMBOL_GPL(gpiochip_get_desc); + /** - * gpiochip_get_desc - get the GPIO descriptor corresponding to the given - * hardware number for this chip - * @gc: GPIO chip + * gpio_device_get_desc() - get the GPIO descriptor corresponding to the given + * hardware number for this GPIO device + * @gdev: GPIO device to get the descriptor from * @hwnum: hardware number of the GPIO for this chip * * Returns: - * A pointer to the GPIO descriptor or ``ERR_PTR(-EINVAL)`` if no GPIO exists - * in the given chip for the specified hardware number. + * A pointer to the GPIO descriptor or %EINVAL if no GPIO exists in the given + * chip for the specified hardware number or %ENODEV if the underlying chip + * already vanished. + * + * The reference count of struct gpio_device is *NOT* increased like when the + * GPIO is being requested for exclusive usage. It's up to the caller to make + * sure the GPIO device will stay alive together with the descriptor returned + * by this function. */ -struct gpio_desc *gpiochip_get_desc(struct gpio_chip *gc, - unsigned int hwnum) +struct gpio_desc * +gpio_device_get_desc(struct gpio_device *gdev, unsigned int hwnum) { - struct gpio_device *gdev = gc->gpiodev; + struct gpio_chip *gc; + + /* + * FIXME: This will be locked once we protect gdev->chip everywhere + * with SRCU. + */ + gc = gdev->chip; + if (!gc) + return ERR_PTR(-ENODEV); if (hwnum >= gdev->ngpio) return ERR_PTR(-EINVAL); return &gdev->descs[hwnum]; } -EXPORT_SYMBOL_GPL(gpiochip_get_desc); +EXPORT_SYMBOL_GPL(gpio_device_get_desc); /** * desc_to_gpio - convert a GPIO descriptor to the integer namespace @@ -197,6 +220,61 @@ struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc) } EXPORT_SYMBOL_GPL(gpiod_to_chip); +/** + * gpiod_to_gpio_device() - Return the GPIO device to which this descriptor + * belongs. + * @desc: Descriptor for which to return the GPIO device. + * + * This *DOES NOT* increase the reference count of the GPIO device as it's + * expected that the descriptor is requested and the users already holds a + * reference to the device. + * + * Returns: + * Address of the GPIO device owning this descriptor. + */ +struct gpio_device *gpiod_to_gpio_device(struct gpio_desc *desc) +{ + if (!desc) + return NULL; + + return desc->gdev; +} +EXPORT_SYMBOL_GPL(gpiod_to_gpio_device); + +/** + * gpio_device_get_base() - Get the base GPIO number allocated by this device + * @gdev: GPIO device + * + * Returns: + * First GPIO number in the global GPIO numberspace for this device. + */ +int gpio_device_get_base(struct gpio_device *gdev) +{ + return gdev->base; +} +EXPORT_SYMBOL_GPL(gpio_device_get_base); + +/** + * gpio_device_get_chip() - Get the gpio_chip implementation of this GPIO device + * @gdev: GPIO device + * + * Returns: + * Address of the GPIO chip backing this device. + * + * Until we can get rid of all non-driver users of struct gpio_chip, we must + * provide a way of retrieving the pointer to it from struct gpio_device. This + * is *NOT* safe as the GPIO API is considered to be hot-unpluggable and the + * chip can dissapear at any moment (unlike reference-counted struct + * gpio_device). + * + * Use at your own risk. + */ +struct gpio_chip *gpio_device_get_chip(struct gpio_device *gdev) +{ + return gdev->chip; +} +EXPORT_SYMBOL_GPL(gpio_device_get_chip); + /* dynamic allocation of GPIOs, e.g. on a hotplugged device */ static int gpiochip_find_base(int ngpio) { @@ -1014,16 +1092,10 @@ void gpiochip_remove(struct gpio_chip *gc) } EXPORT_SYMBOL_GPL(gpiochip_remove); -/** - * gpiochip_find() - iterator for locating a specific gpio_chip - * @data: data to pass to match function - * @match: Callback function to check gpio_chip +/* + * FIXME: This will be removed soon. * - * Similar to bus_find_device. It returns a reference to a gpio_chip as - * determined by a user supplied @match callback. The callback should return - * 0 if the device doesn't match and non-zero if it does. If the callback is - * non-zero, this function will return to the caller and not iterate over any - * more gpio_chips. + * This function is depracated, don't use. */ struct gpio_chip *gpiochip_find(void *data, int (*match)(struct gpio_chip *gc, @@ -1031,32 +1103,142 @@ struct gpio_chip *gpiochip_find(void *data, { struct gpio_device *gdev; struct gpio_chip *gc = NULL; - unsigned long flags; - - spin_lock_irqsave(&gpio_lock, flags); - list_for_each_entry(gdev, &gpio_devices, list) - if (gdev->chip && match(gdev->chip, data)) { - gc = gdev->chip; - break; - } - spin_unlock_irqrestore(&gpio_lock, flags); + gdev = gpio_device_find(data, match); + if (gdev) { + gc = gdev->chip; + gpio_device_put(gdev); + } return gc; } EXPORT_SYMBOL_GPL(gpiochip_find); -static int gpiochip_match_name(struct gpio_chip *gc, void *data) +/** + * gpio_device_find() - find a specific GPIO device + * @data: data to pass to match function + * @match: Callback function to check gpio_chip + * + * Returns: + * New reference to struct gpio_device. + * + * Similar to bus_find_device(). It returns a reference to a gpio_device as + * determined by a user supplied @match callback. The callback should return + * 0 if the device doesn't match and non-zero if it does. If the callback + * returns non-zero, this function will return to the caller and not iterate + * over any more gpio_devices. + * + * The callback takes the GPIO chip structure as argument. During the execution + * of the callback function the chip is protected from being freed. TODO: This + * actually has yet to be implemented. + * + * If the function returns non-NULL, the returned reference must be freed by + * the caller using gpio_device_put(). + */ +struct gpio_device *gpio_device_find(void *data, + int (*match)(struct gpio_chip *gc, + void *data)) +{ + struct gpio_device *gdev; + + /* + * Not yet but in the future the spinlock below will become a mutex. + * Annotate this function before anyone tries to use it in interrupt + * context like it happened with gpiochip_find(). + */ + might_sleep(); + + guard(spinlock_irqsave)(&gpio_lock); + + list_for_each_entry(gdev, &gpio_devices, list) { + if (gdev->chip && match(gdev->chip, data)) + return gpio_device_get(gdev); + } + + return NULL; +} +EXPORT_SYMBOL_GPL(gpio_device_find); + +static int gpio_chip_match_by_label(struct gpio_chip *gc, void *label) { - const char *name = data; + return gc->label && !strcmp(gc->label, label); +} - return !strcmp(gc->label, name); +/** + * gpio_device_find_by_label() - wrapper around gpio_device_find() finding the + * GPIO device by its backing chip's label + * @label: Label to lookup + * + * Returns: + * Reference to the GPIO device or NULL. Reference must be released with + * gpio_device_put(). + */ +struct gpio_device *gpio_device_find_by_label(const char *label) +{ + return gpio_device_find((void *)label, gpio_chip_match_by_label); +} +EXPORT_SYMBOL_GPL(gpio_device_find_by_label); + +static int gpio_chip_match_by_fwnode(struct gpio_chip *gc, void *fwnode) +{ + return device_match_fwnode(&gc->gpiodev->dev, fwnode); } -static struct gpio_chip *find_chip_by_name(const char *name) +/** + * gpio_device_find_by_fwnode() - wrapper around gpio_device_find() finding + * the GPIO device by its fwnode + * @fwnode: Firmware node to lookup + * + * Returns: + * Reference to the GPIO device or NULL. Reference must be released with + * gpio_device_put(). + */ +struct gpio_device *gpio_device_find_by_fwnode(const struct fwnode_handle *fwnode) { - return gpiochip_find((void *)name, gpiochip_match_name); + return gpio_device_find((void *)fwnode, gpio_chip_match_by_fwnode); } +EXPORT_SYMBOL_GPL(gpio_device_find_by_fwnode); + +/** + * gpio_device_get() - Increase the reference count of this GPIO device + * @gdev: GPIO device to increase the refcount for + * + * Returns: + * Pointer to @gdev. + */ +struct gpio_device *gpio_device_get(struct gpio_device *gdev) +{ + return to_gpio_device(get_device(&gdev->dev)); +} +EXPORT_SYMBOL_GPL(gpio_device_get); + +/** + * gpio_device_put() - Decrease the reference count of this GPIO device and + * possibly free all resources associated with it. + * @gdev: GPIO device to decrease the reference count for + */ +void gpio_device_put(struct gpio_device *gdev) +{ + put_device(&gdev->dev); +} +EXPORT_SYMBOL_GPL(gpio_device_put); + +/** + * gpio_device_to_device() - Retrieve the address of the underlying struct + * device. + * @gdev: GPIO device for which to return the address. + * + * This does not increase the reference count of the GPIO device nor the + * underlying struct device. + * + * Returns: + * Address of struct device backing this GPIO device. + */ +struct device *gpio_device_to_device(struct gpio_device *gdev) +{ + return &gdev->dev; +} +EXPORT_SYMBOL_GPL(gpio_device_to_device); #ifdef CONFIG_GPIOLIB_IRQCHIP @@ -2700,7 +2882,6 @@ int gpiod_set_transitory(struct gpio_desc *desc, bool transitory) PIN_CONFIG_PERSIST_STATE, !transitory); } -EXPORT_SYMBOL_GPL(gpiod_set_transitory); /** * gpiod_is_active_low - test whether a GPIO is active-low or not @@ -3786,7 +3967,6 @@ EXPORT_SYMBOL_GPL(gpiod_remove_lookup_table); */ void gpiod_add_hogs(struct gpiod_hog *hogs) { - struct gpio_chip *gc; struct gpiod_hog *hog; mutex_lock(&gpio_machine_hogs_mutex); @@ -3798,9 +3978,10 @@ void gpiod_add_hogs(struct gpiod_hog *hogs) * The chip may have been registered earlier, so check if it * exists and, if so, try to hog the line now. */ - gc = find_chip_by_name(hog->chip_label); - if (gc) - gpiochip_machine_hog(gc, hog); + struct gpio_device *gdev __free(gpio_device_put) = + gpio_device_find_by_label(hog->chip_label); + if (gdev) + gpiochip_machine_hog(gpio_device_get_chip(gdev), hog); } mutex_unlock(&gpio_machine_hogs_mutex); @@ -3823,8 +4004,6 @@ static struct gpiod_lookup_table *gpiod_find_lookup_table(struct device *dev) const char *dev_id = dev ? dev_name(dev) : NULL; struct gpiod_lookup_table *table; - mutex_lock(&gpio_lookup_lock); - list_for_each_entry(table, &gpio_lookup_list, list) { if (table->dev_id && dev_id) { /* @@ -3832,21 +4011,18 @@ static struct gpiod_lookup_table *gpiod_find_lookup_table(struct device *dev) * a match */ if (!strcmp(table->dev_id, dev_id)) - goto found; + return table; } else { /* * One of the pointers is NULL, so both must be to have * a match */ if (dev_id == table->dev_id) - goto found; + return table; } } - table = NULL; -found: - mutex_unlock(&gpio_lookup_lock); - return table; + return NULL; } static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id, @@ -3855,14 +4031,15 @@ static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id, struct gpio_desc *desc = ERR_PTR(-ENOENT); struct gpiod_lookup_table *table; struct gpiod_lookup *p; + struct gpio_chip *gc; + + guard(mutex)(&gpio_lookup_lock); table = gpiod_find_lookup_table(dev); if (!table) return desc; for (p = &table->table[0]; p->key; p++) { - struct gpio_chip *gc; - /* idx must always match exactly */ if (p->idx != idx) continue; @@ -3883,9 +4060,9 @@ static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id, return ERR_PTR(-EPROBE_DEFER); } - gc = find_chip_by_name(p->key); - - if (!gc) { + struct gpio_device *gdev __free(gpio_device_put) = + gpio_device_find_by_label(p->key); + if (!gdev) { /* * As the lookup table indicates a chip with * p->key should exist, assume it may @@ -3898,6 +4075,8 @@ static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id, return ERR_PTR(-EPROBE_DEFER); } + gc = gpio_device_get_chip(gdev); + if (gc->ngpio <= p->chip_hwnum) { dev_err(dev, "requested GPIO %u (%u) is out of range [0..%u] for chip %s\n", @@ -3906,7 +4085,7 @@ static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id, return ERR_PTR(-EINVAL); } - desc = gpiochip_get_desc(gc, p->chip_hwnum); + desc = gpio_device_get_desc(gdev, p->chip_hwnum); *flags = p->flags; return desc; @@ -3921,15 +4100,18 @@ static int platform_gpio_count(struct device *dev, const char *con_id) struct gpiod_lookup *p; unsigned int count = 0; - table = gpiod_find_lookup_table(dev); - if (!table) - return -ENOENT; + scoped_guard(mutex, &gpio_lookup_lock) { + table = gpiod_find_lookup_table(dev); + if (!table) + return -ENOENT; - for (p = &table->table[0]; p->key; p++) { - if ((con_id && p->con_id && !strcmp(con_id, p->con_id)) || - (!con_id && !p->con_id)) - count++; + for (p = &table->table[0]; p->key; p++) { + if ((con_id && p->con_id && !strcmp(con_id, p->con_id)) || + (!con_id && !p->con_id)) + count++; + } } + if (!count) return -ENOENT; diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index a0a67569300b..3ccacf3c1288 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -86,16 +86,6 @@ static inline struct gpio_device *to_gpio_device(struct device *dev) return container_of(dev, struct gpio_device, dev); } -static inline struct gpio_device *gpio_device_get(struct gpio_device *gdev) -{ - return to_gpio_device(get_device(&gdev->dev)); -} - -static inline void gpio_device_put(struct gpio_device *gdev) -{ - put_device(&gdev->dev); -} - /* gpio suffixes used for ACPI and device tree lookup */ static __maybe_unused const char * const gpio_suffixes[] = { "gpios", "gpio" }; @@ -122,8 +112,6 @@ struct gpio_array { unsigned long invert_mask[]; }; -struct gpio_desc *gpiochip_get_desc(struct gpio_chip *gc, unsigned int hwnum); - #define for_each_gpio_desc(gc, desc) \ for (unsigned int __i = 0; \ __i < gc->ngpio && (desc = gpiochip_get_desc(gc, __i)); \ @@ -144,6 +132,8 @@ int gpiod_set_array_value_complex(bool raw, bool can_sleep, struct gpio_array *array_info, unsigned long *value_bitmap); +int gpiod_set_transitory(struct gpio_desc *desc, bool transitory); + extern spinlock_t gpio_lock; extern struct list_head gpio_devices; diff --git a/drivers/hte/Kconfig b/drivers/hte/Kconfig index cf29e0218bae..8e0fd818a73e 100644 --- a/drivers/hte/Kconfig +++ b/drivers/hte/Kconfig @@ -17,6 +17,7 @@ if HTE config HTE_TEGRA194 tristate "NVIDIA Tegra194 HTE Support" depends on ARCH_TEGRA_194_SOC + depends on GPIOLIB help Enable this option for integrated hardware timestamping engine also known as generic timestamping engine (GTE) support on NVIDIA Tegra194 diff --git a/drivers/hte/hte-tegra194.c b/drivers/hte/hte-tegra194.c index 6fe6897047ac..341a134cb7d0 100644 --- a/drivers/hte/hte-tegra194.c +++ b/drivers/hte/hte-tegra194.c @@ -132,7 +132,7 @@ struct tegra_hte_soc { const struct tegra_hte_data *prov_data; struct tegra_hte_line_data *line_data; struct hte_chip *chip; - struct gpio_chip *c; + struct gpio_device *gdev; void __iomem *regs; }; @@ -418,7 +418,7 @@ static int tegra_hte_line_xlate(struct hte_chip *gc, * HTE/GTE namespace. */ if (gs->prov_data->type == HTE_TEGRA_TYPE_GPIO && !args) { - line_id = desc->attr.line_id - gs->c->base; + line_id = desc->attr.line_id - gpio_device_get_base(gs->gdev); map = gs->prov_data->map; map_sz = gs->prov_data->map_sz; } else if (gs->prov_data->type == HTE_TEGRA_TYPE_GPIO && args) { @@ -645,7 +645,7 @@ static bool tegra_hte_match_from_linedata(const struct hte_chip *chip, if (!hte_dev || (hte_dev->prov_data->type != HTE_TEGRA_TYPE_GPIO)) return false; - return hte_dev->c == gpiod_to_chip(hdesc->attr.line_data); + return hte_dev->gdev == gpiod_to_gpio_device(hdesc->attr.line_data); } static const struct of_device_id tegra_hte_of_match[] = { @@ -673,14 +673,11 @@ static void tegra_gte_disable(void *data) tegra_hte_writel(gs, HTE_TECTRL, 0); } -static int tegra_get_gpiochip_from_name(struct gpio_chip *chip, void *data) +static void tegra_hte_put_gpio_device(void *data) { - return !strcmp(chip->label, data); -} + struct gpio_device *gdev = data; -static int tegra_gpiochip_match(struct gpio_chip *chip, void *data) -{ - return chip->fwnode == of_node_to_fwnode(data); + gpio_device_put(gdev); } static int tegra_hte_probe(struct platform_device *pdev) @@ -760,8 +757,8 @@ static int tegra_hte_probe(struct platform_device *pdev) if (of_device_is_compatible(dev->of_node, "nvidia,tegra194-gte-aon")) { - hte_dev->c = gpiochip_find("tegra194-gpio-aon", - tegra_get_gpiochip_from_name); + hte_dev->gdev = + gpio_device_find_by_label("tegra194-gpio-aon"); } else { gpio_ctrl = of_parse_phandle(dev->of_node, "nvidia,gpio-controller", @@ -772,14 +769,19 @@ static int tegra_hte_probe(struct platform_device *pdev) return -ENODEV; } - hte_dev->c = gpiochip_find(gpio_ctrl, - tegra_gpiochip_match); + hte_dev->gdev = + gpio_device_find_by_fwnode(of_fwnode_handle(gpio_ctrl)); of_node_put(gpio_ctrl); } - if (!hte_dev->c) + if (!hte_dev->gdev) return dev_err_probe(dev, -EPROBE_DEFER, "wait for gpio controller\n"); + + ret = devm_add_action_or_reset(dev, tegra_hte_put_gpio_device, + hte_dev->gdev); + if (ret) + return ret; } hte_dev->chip = gc; diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c index 5ca03bd34c8d..78987ead6be0 100644 --- a/drivers/i2c/muxes/i2c-mux-gpio.c +++ b/drivers/i2c/muxes/i2c-mux-gpio.c @@ -14,8 +14,7 @@ #include <linux/slab.h> #include <linux/bits.h> #include <linux/gpio/consumer.h> -/* FIXME: stop poking around inside gpiolib */ -#include "../../gpio/gpiolib.h" +#include <linux/gpio/driver.h> struct gpiomux { struct i2c_mux_gpio_platform_data data; @@ -178,7 +177,8 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev) } for (i = 0; i < ngpios; i++) { - struct device *gpio_dev; + struct gpio_device *gdev; + struct device *dev; struct gpio_desc *gpiod; enum gpiod_flags flag; @@ -197,9 +197,9 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev) if (!muxc->mux_locked) continue; - /* FIXME: find a proper way to access the GPIO device */ - gpio_dev = &gpiod->gdev->dev; - muxc->mux_locked = i2c_root_adapter(gpio_dev) == root; + gdev = gpiod_to_gpio_device(gpiod); + dev = gpio_device_to_device(gdev); + muxc->mux_locked = i2c_root_adapter(dev) == root; } if (muxc->mux_locked) diff --git a/drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c b/drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c index 6748226b8bd1..c816dc137245 100644 --- a/drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c +++ b/drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c @@ -380,18 +380,6 @@ static int ingenic_nand_init_chip(struct platform_device *pdev, return ret; } - /* - * The rb-gpios semantics was undocumented and qi,lb60 (along with - * the ingenic driver) got it wrong. The active state encodes the - * NAND ready state, which is high level. Since there's no signal - * inverter on this board, it should be active-high. Let's fix that - * here for older DTs so we can re-use the generic nand_gpio_waitrdy() - * helper, and be consistent with what other drivers do. - */ - if (of_machine_is_compatible("qi,lb60") && - gpiod_is_active_low(nand->busy_gpio)) - gpiod_toggle_active_low(nand->busy_gpio); - nand->wp_gpio = devm_gpiod_get_optional(dev, "wp", GPIOD_OUT_LOW); if (IS_ERR(nand->wp_gpio)) { diff --git a/drivers/pinctrl/pinctrl-da9062.c b/drivers/pinctrl/pinctrl-da9062.c index 0e0ac3f3ffef..3998b27cbe0e 100644 --- a/drivers/pinctrl/pinctrl-da9062.c +++ b/drivers/pinctrl/pinctrl-da9062.c @@ -17,17 +17,12 @@ #include <linux/property.h> #include <linux/regmap.h> +#include <linux/gpio/consumer.h> #include <linux/gpio/driver.h> #include <linux/mfd/da9062/core.h> #include <linux/mfd/da9062/registers.h> -/* - * We need this get the gpio_desc from a <gpio_chip,offset> tuple to decide if - * the gpio is active low without a vendor specific dt-binding. - */ -#include "../gpio/gpiolib.h" - #define DA9062_TYPE(offset) (4 * (offset % 2)) #define DA9062_PIN_SHIFT(offset) (4 * (offset % 2)) #define DA9062_PIN_ALTERNATE 0x00 /* gpio alternate mode */ diff --git a/drivers/platform/x86/intel/int3472/clk_and_regulator.c b/drivers/platform/x86/intel/int3472/clk_and_regulator.c index ef4b3141efcd..16e36ac0a7b4 100644 --- a/drivers/platform/x86/intel/int3472/clk_and_regulator.c +++ b/drivers/platform/x86/intel/int3472/clk_and_regulator.c @@ -162,9 +162,8 @@ out_free_init_name: } int skl_int3472_register_gpio_clock(struct int3472_discrete_device *int3472, - struct acpi_resource_gpio *agpio, u32 polarity) + struct gpio_desc *gpio) { - char *path = agpio->resource_source.string_ptr; struct clk_init_data init = { .ops = &skl_int3472_clock_ops, .flags = CLK_GET_RATE_NOCACHE, @@ -174,26 +173,12 @@ int skl_int3472_register_gpio_clock(struct int3472_discrete_device *int3472, if (int3472->clock.cl) return -EBUSY; - int3472->clock.ena_gpio = acpi_get_and_request_gpiod(path, agpio->pin_table[0], - "int3472,clk-enable"); - if (IS_ERR(int3472->clock.ena_gpio)) { - ret = PTR_ERR(int3472->clock.ena_gpio); - int3472->clock.ena_gpio = NULL; - return dev_err_probe(int3472->dev, ret, "getting clk-enable GPIO\n"); - } - - if (polarity == GPIO_ACTIVE_LOW) - gpiod_toggle_active_low(int3472->clock.ena_gpio); - - /* Ensure the pin is in output mode and non-active state */ - gpiod_direction_output(int3472->clock.ena_gpio, 0); + int3472->clock.ena_gpio = gpio; init.name = kasprintf(GFP_KERNEL, "%s-clk", acpi_dev_name(int3472->adev)); - if (!init.name) { - ret = -ENOMEM; - goto out_put_gpio; - } + if (!init.name) + return -ENOMEM; int3472->clock.frequency = skl_int3472_get_clk_frequency(int3472); @@ -219,8 +204,6 @@ err_unregister_clk: clk_unregister(int3472->clock.clk); out_free_init_name: kfree(init.name); -out_put_gpio: - gpiod_put(int3472->clock.ena_gpio); return ret; } @@ -232,7 +215,6 @@ void skl_int3472_unregister_clock(struct int3472_discrete_device *int3472) clkdev_drop(int3472->clock.cl); clk_unregister(int3472->clock.clk); - gpiod_put(int3472->clock.ena_gpio); } /* @@ -273,14 +255,13 @@ static const struct dmi_system_id skl_int3472_regulator_second_sensor[] = { }; int skl_int3472_register_regulator(struct int3472_discrete_device *int3472, - struct acpi_resource_gpio *agpio) + struct gpio_desc *gpio) { - char *path = agpio->resource_source.string_ptr; struct regulator_init_data init_data = { }; struct regulator_config cfg = { }; const char *second_sensor = NULL; const struct dmi_system_id *id; - int i, j, ret; + int i, j; id = dmi_first_match(skl_int3472_regulator_second_sensor); if (id) @@ -314,16 +295,7 @@ int skl_int3472_register_regulator(struct int3472_discrete_device *int3472, int3472->regulator.supply_name, &int3472_gpio_regulator_ops); - int3472->regulator.gpio = acpi_get_and_request_gpiod(path, agpio->pin_table[0], - "int3472,regulator"); - if (IS_ERR(int3472->regulator.gpio)) { - ret = PTR_ERR(int3472->regulator.gpio); - int3472->regulator.gpio = NULL; - return dev_err_probe(int3472->dev, ret, "getting regulator GPIO\n"); - } - - /* Ensure the pin is in output mode and non-active state */ - gpiod_direction_output(int3472->regulator.gpio, 0); + int3472->regulator.gpio = gpio; cfg.dev = &int3472->adev->dev; cfg.init_data = &init_data; @@ -332,21 +304,11 @@ int skl_int3472_register_regulator(struct int3472_discrete_device *int3472, int3472->regulator.rdev = regulator_register(int3472->dev, &int3472->regulator.rdesc, &cfg); - if (IS_ERR(int3472->regulator.rdev)) { - ret = PTR_ERR(int3472->regulator.rdev); - goto err_free_gpio; - } - return 0; - -err_free_gpio: - gpiod_put(int3472->regulator.gpio); - - return ret; + return PTR_ERR_OR_ZERO(int3472->regulator.rdev); } void skl_int3472_unregister_regulator(struct int3472_discrete_device *int3472) { regulator_unregister(int3472->regulator.rdev); - gpiod_put(int3472->regulator.gpio); } diff --git a/drivers/platform/x86/intel/int3472/common.h b/drivers/platform/x86/intel/int3472/common.h index 9f29baa13860..145dec66df64 100644 --- a/drivers/platform/x86/intel/int3472/common.h +++ b/drivers/platform/x86/intel/int3472/common.h @@ -117,16 +117,15 @@ int skl_int3472_get_sensor_adev_and_name(struct device *dev, const char **name_ret); int skl_int3472_register_gpio_clock(struct int3472_discrete_device *int3472, - struct acpi_resource_gpio *agpio, u32 polarity); + struct gpio_desc *gpio); int skl_int3472_register_dsm_clock(struct int3472_discrete_device *int3472); void skl_int3472_unregister_clock(struct int3472_discrete_device *int3472); int skl_int3472_register_regulator(struct int3472_discrete_device *int3472, - struct acpi_resource_gpio *agpio); + struct gpio_desc *gpio); void skl_int3472_unregister_regulator(struct int3472_discrete_device *int3472); -int skl_int3472_register_pled(struct int3472_discrete_device *int3472, - struct acpi_resource_gpio *agpio, u32 polarity); +int skl_int3472_register_pled(struct int3472_discrete_device *int3472, struct gpio_desc *gpio); void skl_int3472_unregister_pled(struct int3472_discrete_device *int3472); #endif diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c index e33c2d75975c..07b302e09340 100644 --- a/drivers/platform/x86/intel/int3472/discrete.c +++ b/drivers/platform/x86/intel/int3472/discrete.c @@ -52,21 +52,15 @@ static void skl_int3472_log_sensor_module_name(struct int3472_discrete_device *i } } -static int skl_int3472_map_gpio_to_sensor(struct int3472_discrete_device *int3472, - struct acpi_resource_gpio *agpio, - const char *func, u32 polarity) +static int skl_int3472_fill_gpiod_lookup(struct gpiod_lookup *table_entry, + struct acpi_resource_gpio *agpio, + const char *func, u32 polarity) { char *path = agpio->resource_source.string_ptr; - struct gpiod_lookup *table_entry; struct acpi_device *adev; acpi_handle handle; acpi_status status; - if (int3472->n_sensor_gpios >= INT3472_MAX_SENSOR_GPIOS) { - dev_warn(int3472->dev, "Too many GPIOs mapped\n"); - return -EINVAL; - } - status = acpi_get_handle(NULL, path, &handle); if (ACPI_FAILURE(status)) return -EINVAL; @@ -75,18 +69,62 @@ static int skl_int3472_map_gpio_to_sensor(struct int3472_discrete_device *int347 if (!adev) return -ENODEV; - table_entry = &int3472->gpios.table[int3472->n_sensor_gpios]; table_entry->key = acpi_dev_name(adev); table_entry->chip_hwnum = agpio->pin_table[0]; table_entry->con_id = func; table_entry->idx = 0; table_entry->flags = polarity; + return 0; +} + +static int skl_int3472_map_gpio_to_sensor(struct int3472_discrete_device *int3472, + struct acpi_resource_gpio *agpio, + const char *func, u32 polarity) +{ + int ret; + + if (int3472->n_sensor_gpios >= INT3472_MAX_SENSOR_GPIOS) { + dev_warn(int3472->dev, "Too many GPIOs mapped\n"); + return -EINVAL; + } + + ret = skl_int3472_fill_gpiod_lookup(&int3472->gpios.table[int3472->n_sensor_gpios], + agpio, func, polarity); + if (ret) + return ret; + int3472->n_sensor_gpios++; return 0; } +/* This should *really* only be used when there's no other way... */ +static struct gpio_desc * +skl_int3472_gpiod_get_from_temp_lookup(struct int3472_discrete_device *int3472, + struct acpi_resource_gpio *agpio, + const char *func, u32 polarity) +{ + struct gpio_desc *desc; + int ret; + + struct gpiod_lookup_table *lookup __free(kfree) = + kzalloc(struct_size(lookup, table, 2), GFP_KERNEL); + if (!lookup) + return ERR_PTR(-ENOMEM); + + lookup->dev_id = dev_name(int3472->dev); + ret = skl_int3472_fill_gpiod_lookup(&lookup->table[0], agpio, func, polarity); + if (ret) + return ERR_PTR(ret); + + gpiod_add_lookup_table(lookup); + desc = devm_gpiod_get(int3472->dev, func, GPIOD_OUT_LOW); + gpiod_remove_lookup_table(lookup); + + return desc; +} + static void int3472_get_func_and_polarity(u8 type, const char **func, u32 *polarity) { switch (type) { @@ -156,6 +194,7 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares, struct acpi_resource_gpio *agpio; u8 active_value, pin, type; union acpi_object *obj; + struct gpio_desc *gpio; const char *err_msg; const char *func; u32 polarity; @@ -206,22 +245,38 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares, break; case INT3472_GPIO_TYPE_CLK_ENABLE: - ret = skl_int3472_register_gpio_clock(int3472, agpio, polarity); - if (ret) - err_msg = "Failed to register clock\n"; - - break; case INT3472_GPIO_TYPE_PRIVACY_LED: - ret = skl_int3472_register_pled(int3472, agpio, polarity); - if (ret) - err_msg = "Failed to register LED\n"; - - break; case INT3472_GPIO_TYPE_POWER_ENABLE: - ret = skl_int3472_register_regulator(int3472, agpio); - if (ret) - err_msg = "Failed to map regulator to sensor\n"; - + gpio = skl_int3472_gpiod_get_from_temp_lookup(int3472, agpio, func, polarity); + if (IS_ERR(gpio)) { + ret = PTR_ERR(gpio); + err_msg = "Failed to get GPIO\n"; + break; + } + + switch (type) { + case INT3472_GPIO_TYPE_CLK_ENABLE: + ret = skl_int3472_register_gpio_clock(int3472, gpio); + if (ret) + err_msg = "Failed to register clock\n"; + + break; + case INT3472_GPIO_TYPE_PRIVACY_LED: + ret = skl_int3472_register_pled(int3472, gpio); + if (ret) + err_msg = "Failed to register LED\n"; + + break; + case INT3472_GPIO_TYPE_POWER_ENABLE: + ret = skl_int3472_register_regulator(int3472, gpio); + if (ret) + err_msg = "Failed to map regulator to sensor\n"; + + break; + default: /* Never reached */ + ret = -EINVAL; + break; + } break; default: dev_warn(int3472->dev, diff --git a/drivers/platform/x86/intel/int3472/led.c b/drivers/platform/x86/intel/int3472/led.c index bca1ce7d0d0c..9cbed694e2ca 100644 --- a/drivers/platform/x86/intel/int3472/led.c +++ b/drivers/platform/x86/intel/int3472/led.c @@ -16,26 +16,15 @@ static int int3472_pled_set(struct led_classdev *led_cdev, return 0; } -int skl_int3472_register_pled(struct int3472_discrete_device *int3472, - struct acpi_resource_gpio *agpio, u32 polarity) +int skl_int3472_register_pled(struct int3472_discrete_device *int3472, struct gpio_desc *gpio) { - char *p, *path = agpio->resource_source.string_ptr; + char *p; int ret; if (int3472->pled.classdev.dev) return -EBUSY; - int3472->pled.gpio = acpi_get_and_request_gpiod(path, agpio->pin_table[0], - "int3472,privacy-led"); - if (IS_ERR(int3472->pled.gpio)) - return dev_err_probe(int3472->dev, PTR_ERR(int3472->pled.gpio), - "getting privacy LED GPIO\n"); - - if (polarity == GPIO_ACTIVE_LOW) - gpiod_toggle_active_low(int3472->pled.gpio); - - /* Ensure the pin is in output mode and non-active state */ - gpiod_direction_output(int3472->pled.gpio, 0); + int3472->pled.gpio = gpio; /* Generate the name, replacing the ':' in the ACPI devname with '_' */ snprintf(int3472->pled.name, sizeof(int3472->pled.name), @@ -50,7 +39,7 @@ int skl_int3472_register_pled(struct int3472_discrete_device *int3472, ret = led_classdev_register(int3472->dev, &int3472->pled.classdev); if (ret) - goto err_free_gpio; + return ret; int3472->pled.lookup.provider = int3472->pled.name; int3472->pled.lookup.dev_id = int3472->sensor_name; @@ -58,10 +47,6 @@ int skl_int3472_register_pled(struct int3472_discrete_device *int3472, led_add_lookup(&int3472->pled.lookup); return 0; - -err_free_gpio: - gpiod_put(int3472->pled.gpio); - return ret; } void skl_int3472_unregister_pled(struct int3472_discrete_device *int3472) @@ -71,5 +56,4 @@ void skl_int3472_unregister_pled(struct int3472_discrete_device *int3472) led_remove_lookup(&int3472->pled.lookup); led_classdev_unregister(&int3472->pled.classdev); - gpiod_put(int3472->pled.gpio); } diff --git a/drivers/platform/x86/x86-android-tablets/asus.c b/drivers/platform/x86/x86-android-tablets/asus.c index f9c4083be86d..227afbb51078 100644 --- a/drivers/platform/x86/x86-android-tablets/asus.c +++ b/drivers/platform/x86/x86-android-tablets/asus.c @@ -303,6 +303,7 @@ static const struct x86_i2c_client_info asus_tf103c_i2c_clients[] __initconst = .index = 28, .trigger = ACPI_EDGE_SENSITIVE, .polarity = ACPI_ACTIVE_LOW, + .con_id = "atmel_mxt_ts_irq", }, }, }; diff --git a/drivers/platform/x86/x86-android-tablets/core.c b/drivers/platform/x86/x86-android-tablets/core.c index 2fd6060a31bb..8a1f22aaac00 100644 --- a/drivers/platform/x86/x86-android-tablets/core.c +++ b/drivers/platform/x86/x86-android-tablets/core.c @@ -12,7 +12,7 @@ #include <linux/acpi.h> #include <linux/dmi.h> -#include <linux/gpio/driver.h> +#include <linux/gpio/consumer.h> #include <linux/gpio/machine.h> #include <linux/irq.h> #include <linux/module.h> @@ -21,33 +21,39 @@ #include <linux/string.h> #include "x86-android-tablets.h" -/* For gpiochip_get_desc() which is EXPORT_SYMBOL_GPL() */ -#include "../../../gpio/gpiolib.h" -#include "../../../gpio/gpiolib-acpi.h" -static int gpiochip_find_match_label(struct gpio_chip *gc, void *data) -{ - return gc->label && !strcmp(gc->label, data); -} +static struct platform_device *x86_android_tablet_device; -int x86_android_tablet_get_gpiod(const char *label, int pin, struct gpio_desc **desc) +int x86_android_tablet_get_gpiod(const char *chip, int pin, const char *con_id, + bool active_low, enum gpiod_flags dflags, + struct gpio_desc **desc) { + struct gpiod_lookup_table *lookup; struct gpio_desc *gpiod; - struct gpio_chip *chip; - chip = gpiochip_find((void *)label, gpiochip_find_match_label); - if (!chip) { - pr_err("error cannot find GPIO chip %s\n", label); - return -ENODEV; - } + lookup = kzalloc(struct_size(lookup, table, 2), GFP_KERNEL); + if (!lookup) + return -ENOMEM; + + lookup->dev_id = KBUILD_MODNAME; + lookup->table[0].key = chip; + lookup->table[0].chip_hwnum = pin; + lookup->table[0].con_id = con_id; + lookup->table[0].flags = active_low ? GPIO_ACTIVE_LOW : GPIO_ACTIVE_HIGH; + + gpiod_add_lookup_table(lookup); + gpiod = devm_gpiod_get(&x86_android_tablet_device->dev, con_id, dflags); + gpiod_remove_lookup_table(lookup); + kfree(lookup); - gpiod = gpiochip_get_desc(chip, pin); if (IS_ERR(gpiod)) { - pr_err("error %ld getting GPIO %s %d\n", PTR_ERR(gpiod), label, pin); + pr_err("error %ld getting GPIO %s %d\n", PTR_ERR(gpiod), chip, pin); return PTR_ERR(gpiod); } - *desc = gpiod; + if (desc) + *desc = gpiod; + return 0; } @@ -77,7 +83,8 @@ int x86_acpi_irq_helper_get(const struct x86_acpi_irq_data *data) return irq; case X86_ACPI_IRQ_TYPE_GPIOINT: /* Like acpi_dev_gpio_irq_get(), but without parsing ACPI resources */ - ret = x86_android_tablet_get_gpiod(data->chip, data->index, &gpiod); + ret = x86_android_tablet_get_gpiod(data->chip, data->index, data->con_id, + false, GPIOD_ASIS, &gpiod); if (ret) return ret; @@ -224,7 +231,7 @@ put_ctrl_adev: return ret; } -static void x86_android_tablet_cleanup(void) +static void x86_android_tablet_remove(struct platform_device *pdev) { int i; @@ -255,11 +262,10 @@ static void x86_android_tablet_cleanup(void) software_node_unregister(bat_swnode); } -static __init int x86_android_tablet_init(void) +static __init int x86_android_tablet_probe(struct platform_device *pdev) { const struct x86_dev_info *dev_info; const struct dmi_system_id *id; - struct gpio_chip *chip; int i, ret = 0; id = dmi_first_match(x86_android_tablet_ids); @@ -267,20 +273,8 @@ static __init int x86_android_tablet_init(void) return -ENODEV; dev_info = id->driver_data; - - /* - * The broken DSDTs on these devices often also include broken - * _AEI (ACPI Event Interrupt) handlers, disable these. - */ - if (dev_info->invalid_aei_gpiochip) { - chip = gpiochip_find(dev_info->invalid_aei_gpiochip, - gpiochip_find_match_label); - if (!chip) { - pr_err("error cannot find GPIO chip %s\n", dev_info->invalid_aei_gpiochip); - return -ENODEV; - } - acpi_gpiochip_free_interrupts(chip); - } + /* Allow x86_android_tablet_device use before probe() exits */ + x86_android_tablet_device = pdev; /* * Since this runs from module_init() it cannot use -EPROBE_DEFER, @@ -303,7 +297,7 @@ static __init int x86_android_tablet_init(void) if (dev_info->init) { ret = dev_info->init(); if (ret < 0) { - x86_android_tablet_cleanup(); + x86_android_tablet_remove(pdev); return ret; } exit_handler = dev_info->exit; @@ -311,7 +305,7 @@ static __init int x86_android_tablet_init(void) i2c_clients = kcalloc(dev_info->i2c_client_count, sizeof(*i2c_clients), GFP_KERNEL); if (!i2c_clients) { - x86_android_tablet_cleanup(); + x86_android_tablet_remove(pdev); return -ENOMEM; } @@ -319,7 +313,7 @@ static __init int x86_android_tablet_init(void) for (i = 0; i < i2c_client_count; i++) { ret = x86_instantiate_i2c_client(dev_info, i); if (ret < 0) { - x86_android_tablet_cleanup(); + x86_android_tablet_remove(pdev); return ret; } } @@ -327,7 +321,7 @@ static __init int x86_android_tablet_init(void) /* + 1 to make space for (optional) gpio_keys_button pdev */ pdevs = kcalloc(dev_info->pdev_count + 1, sizeof(*pdevs), GFP_KERNEL); if (!pdevs) { - x86_android_tablet_cleanup(); + x86_android_tablet_remove(pdev); return -ENOMEM; } @@ -335,14 +329,14 @@ static __init int x86_android_tablet_init(void) for (i = 0; i < pdev_count; i++) { pdevs[i] = platform_device_register_full(&dev_info->pdev_info[i]); if (IS_ERR(pdevs[i])) { - x86_android_tablet_cleanup(); + x86_android_tablet_remove(pdev); return PTR_ERR(pdevs[i]); } } serdevs = kcalloc(dev_info->serdev_count, sizeof(*serdevs), GFP_KERNEL); if (!serdevs) { - x86_android_tablet_cleanup(); + x86_android_tablet_remove(pdev); return -ENOMEM; } @@ -350,7 +344,7 @@ static __init int x86_android_tablet_init(void) for (i = 0; i < serdev_count; i++) { ret = x86_instantiate_serdev(&dev_info->serdev_info[i], i); if (ret < 0) { - x86_android_tablet_cleanup(); + x86_android_tablet_remove(pdev); return ret; } } @@ -361,30 +355,34 @@ static __init int x86_android_tablet_init(void) buttons = kcalloc(dev_info->gpio_button_count, sizeof(*buttons), GFP_KERNEL); if (!buttons) { - x86_android_tablet_cleanup(); + x86_android_tablet_remove(pdev); return -ENOMEM; } for (i = 0; i < dev_info->gpio_button_count; i++) { ret = x86_android_tablet_get_gpiod(dev_info->gpio_button[i].chip, - dev_info->gpio_button[i].pin, &gpiod); + dev_info->gpio_button[i].pin, + dev_info->gpio_button[i].button.desc, + false, GPIOD_IN, &gpiod); if (ret < 0) { - x86_android_tablet_cleanup(); + x86_android_tablet_remove(pdev); return ret; } buttons[i] = dev_info->gpio_button[i].button; buttons[i].gpio = desc_to_gpio(gpiod); + /* Release gpiod so that gpio-keys can request it */ + devm_gpiod_put(&x86_android_tablet_device->dev, gpiod); } pdata.buttons = buttons; pdata.nbuttons = dev_info->gpio_button_count; - pdevs[pdev_count] = platform_device_register_data(NULL, "gpio-keys", + pdevs[pdev_count] = platform_device_register_data(&pdev->dev, "gpio-keys", PLATFORM_DEVID_AUTO, &pdata, sizeof(pdata)); if (IS_ERR(pdevs[pdev_count])) { - x86_android_tablet_cleanup(); + x86_android_tablet_remove(pdev); return PTR_ERR(pdevs[pdev_count]); } pdev_count++; @@ -393,8 +391,29 @@ static __init int x86_android_tablet_init(void) return 0; } +static struct platform_driver x86_android_tablet_driver = { + .driver = { + .name = KBUILD_MODNAME, + }, + .remove_new = x86_android_tablet_remove, +}; + +static int __init x86_android_tablet_init(void) +{ + x86_android_tablet_device = platform_create_bundle(&x86_android_tablet_driver, + x86_android_tablet_probe, + NULL, 0, NULL, 0); + + return PTR_ERR_OR_ZERO(x86_android_tablet_device); +} module_init(x86_android_tablet_init); -module_exit(x86_android_tablet_cleanup); + +static void __exit x86_android_tablet_exit(void) +{ + platform_device_unregister(x86_android_tablet_device); + platform_driver_unregister(&x86_android_tablet_driver); +} +module_exit(x86_android_tablet_exit); MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>"); MODULE_DESCRIPTION("X86 Android tablets DSDT fixups driver"); diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c index 26a4ef670ad7..5c803cdb5586 100644 --- a/drivers/platform/x86/x86-android-tablets/lenovo.c +++ b/drivers/platform/x86/x86-android-tablets/lenovo.c @@ -95,6 +95,7 @@ static const struct x86_i2c_client_info lenovo_yb1_x90_i2c_clients[] __initconst .index = 56, .trigger = ACPI_EDGE_SENSITIVE, .polarity = ACPI_ACTIVE_LOW, + .con_id = "goodix_ts_irq", }, }, { /* Wacom Digitizer in keyboard half */ @@ -111,6 +112,7 @@ static const struct x86_i2c_client_info lenovo_yb1_x90_i2c_clients[] __initconst .index = 49, .trigger = ACPI_LEVEL_SENSITIVE, .polarity = ACPI_ACTIVE_LOW, + .con_id = "wacom_irq", }, }, { /* LP8557 Backlight controller */ @@ -136,6 +138,7 @@ static const struct x86_i2c_client_info lenovo_yb1_x90_i2c_clients[] __initconst .index = 77, .trigger = ACPI_LEVEL_SENSITIVE, .polarity = ACPI_ACTIVE_LOW, + .con_id = "hideep_ts_irq", }, }, }; @@ -321,6 +324,7 @@ static struct x86_i2c_client_info lenovo_yoga_tab2_830_1050_i2c_clients[] __init .index = 2, .trigger = ACPI_EDGE_SENSITIVE, .polarity = ACPI_ACTIVE_HIGH, + .con_id = "bq24292i_irq", }, }, { /* BQ27541 fuel-gauge */ @@ -431,7 +435,8 @@ static int __init lenovo_yoga_tab2_830_1050_init_touchscreen(void) int ret; /* Use PMIC GPIO 10 bootstrap pin to differentiate 830 vs 1050 */ - ret = x86_android_tablet_get_gpiod("gpio_crystalcove", 10, &gpiod); + ret = x86_android_tablet_get_gpiod("gpio_crystalcove", 10, "yoga_bootstrap", + false, GPIOD_IN, &gpiod); if (ret) return ret; @@ -560,7 +565,6 @@ static const struct software_node fg_bq25890_1_supply_node = { /* bq25892 charger settings for the flat lipo battery behind the screen */ static const struct property_entry lenovo_yt3_bq25892_0_props[] = { PROPERTY_ENTRY_STRING_ARRAY("supplied-from", lenovo_yt3_bq25892_0_suppliers), - PROPERTY_ENTRY_STRING("linux,power-supply-name", "bq25892-second-chrg"), PROPERTY_ENTRY_U32("linux,iinlim-percentage", 40), PROPERTY_ENTRY_BOOL("linux,skip-reset"), /* Values taken from Android Factory Image */ @@ -615,6 +619,7 @@ static const struct x86_i2c_client_info lenovo_yt3_i2c_clients[] __initconst = { .index = 5, .trigger = ACPI_EDGE_SENSITIVE, .polarity = ACPI_ACTIVE_LOW, + .con_id = "bq25892_0_irq", }, }, { /* bq27500 fuel-gauge for the round li-ion cells in the hinge */ @@ -640,6 +645,7 @@ static const struct x86_i2c_client_info lenovo_yt3_i2c_clients[] __initconst = { .index = 77, .trigger = ACPI_LEVEL_SENSITIVE, .polarity = ACPI_ACTIVE_LOW, + .con_id = "hideep_ts_irq", }, }, { /* LP8557 Backlight controller */ @@ -655,7 +661,6 @@ static const struct x86_i2c_client_info lenovo_yt3_i2c_clients[] __initconst = { static int __init lenovo_yt3_init(void) { - struct gpio_desc *gpiod; int ret; /* @@ -665,31 +670,23 @@ static int __init lenovo_yt3_init(void) * * The bq25890_charger driver controls these through I2C, but this only * works if not overridden by the pins. Set these pins here: - * 1. Set /CE to 0 to allow charging. + * 1. Set /CE to 1 to allow charging. * 2. Set OTG to 0 disable V5 boost output since the 5V boost output of * the main "bq25892_1" charger is used when necessary. */ /* /CE pin */ - ret = x86_android_tablet_get_gpiod("INT33FF:02", 22, &gpiod); + ret = x86_android_tablet_get_gpiod("INT33FF:02", 22, "bq25892_0_ce", + true, GPIOD_OUT_HIGH, NULL); if (ret < 0) return ret; - /* - * The gpio_desc returned by x86_android_tablet_get_gpiod() is a "raw" - * gpio_desc, that is there is no way to pass lookup-flags like - * GPIO_ACTIVE_LOW. Set the GPIO to 0 here to enable charging since - * the /CE pin is active-low, but not marked as such in the gpio_desc. - */ - gpiod_set_value(gpiod, 0); - /* OTG pin */ - ret = x86_android_tablet_get_gpiod("INT33FF:03", 19, &gpiod); + ret = x86_android_tablet_get_gpiod("INT33FF:03", 19, "bq25892_0_otg", + false, GPIOD_OUT_LOW, NULL); if (ret < 0) return ret; - gpiod_set_value(gpiod, 0); - /* Enable the regulators used by the touchscreen */ intel_soc_pmic_exec_mipi_pmic_seq_element(0x6e, 0x9b, 0x02, 0xff); intel_soc_pmic_exec_mipi_pmic_seq_element(0x6e, 0xa0, 0x02, 0xff); diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c index e79549c6aae1..bc6bbf7ec6ea 100644 --- a/drivers/platform/x86/x86-android-tablets/other.c +++ b/drivers/platform/x86/x86-android-tablets/other.c @@ -47,6 +47,7 @@ static const struct x86_i2c_client_info acer_b1_750_i2c_clients[] __initconst = .index = 3, .trigger = ACPI_EDGE_SENSITIVE, .polarity = ACPI_ACTIVE_LOW, + .con_id = "NVT-ts_irq", }, }, { /* BMA250E accelerometer */ @@ -62,6 +63,7 @@ static const struct x86_i2c_client_info acer_b1_750_i2c_clients[] __initconst = .index = 25, .trigger = ACPI_LEVEL_SENSITIVE, .polarity = ACPI_ACTIVE_HIGH, + .con_id = "bma250e_irq", }, }, }; @@ -174,6 +176,7 @@ static const struct x86_i2c_client_info chuwi_hi8_i2c_clients[] __initconst = { .index = 23, .trigger = ACPI_LEVEL_SENSITIVE, .polarity = ACPI_ACTIVE_HIGH, + .con_id = "bma250e_irq", }, }, }; @@ -312,6 +315,7 @@ static const struct x86_i2c_client_info medion_lifetab_s10346_i2c_clients[] __in .index = 23, .trigger = ACPI_EDGE_SENSITIVE, .polarity = ACPI_ACTIVE_HIGH, + .con_id = "kxtj21009_irq", }, }, { /* goodix touchscreen */ @@ -402,6 +406,7 @@ static const struct x86_i2c_client_info nextbook_ares8_i2c_clients[] __initconst .index = 3, .trigger = ACPI_EDGE_SENSITIVE, .polarity = ACPI_ACTIVE_LOW, + .con_id = "ft5416_irq", }, }, }; @@ -460,6 +465,7 @@ static const struct x86_i2c_client_info nextbook_ares8a_i2c_clients[] __initcons .index = 17, .trigger = ACPI_EDGE_SENSITIVE, .polarity = ACPI_ACTIVE_LOW, + .con_id = "ft5416_irq", }, }, }; @@ -505,11 +511,6 @@ static const struct x86_gpio_button peaq_c1010_button __initconst = { const struct x86_dev_info peaq_c1010_info __initconst = { .gpio_button = &peaq_c1010_button, .gpio_button_count = 1, - /* - * Move the ACPI event handler used by the broken WMI interface out of - * the way. This is the only event handler on INT33FC:00. - */ - .invalid_aei_gpiochip = "INT33FC:00", }; /* diff --git a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h index e46e1128acc8..9d2fb7fded6d 100644 --- a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h +++ b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h @@ -10,6 +10,7 @@ #ifndef __PDX86_X86_ANDROID_TABLETS_H #define __PDX86_X86_ANDROID_TABLETS_H +#include <linux/gpio/consumer.h> #include <linux/gpio_keys.h> #include <linux/i2c.h> #include <linux/irqdomain_defs.h> @@ -37,6 +38,7 @@ struct x86_acpi_irq_data { int index; int trigger; /* ACPI_EDGE_SENSITIVE / ACPI_LEVEL_SENSITIVE */ int polarity; /* ACPI_ACTIVE_HIGH / ACPI_ACTIVE_LOW / ACPI_ACTIVE_BOTH */ + const char *con_id; }; /* Structs to describe devices to instantiate */ @@ -66,7 +68,6 @@ struct x86_gpio_button { }; struct x86_dev_info { - char *invalid_aei_gpiochip; const char * const *modules; const struct software_node *bat_swnode; struct gpiod_lookup_table * const *gpiod_lookup_tables; @@ -82,7 +83,9 @@ struct x86_dev_info { void (*exit)(void); }; -int x86_android_tablet_get_gpiod(const char *label, int pin, struct gpio_desc **desc); +int x86_android_tablet_get_gpiod(const char *chip, int pin, const char *con_id, + bool active_low, enum gpiod_flags dflags, + struct gpio_desc **desc); int x86_acpi_irq_helper_get(const struct x86_acpi_irq_data *data); /* |