diff options
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/Kconfig | 5 | ||||
| -rw-r--r-- | drivers/pinctrl/pinctrl-microchip-sgpio.c | 14 | ||||
| -rw-r--r-- | drivers/pinctrl/pinctrl-ocelot.c | 127 | ||||
| -rw-r--r-- | drivers/pinctrl/qcom/pinctrl-sc8180x.c | 10 | ||||
| -rw-r--r-- | drivers/pinctrl/sunxi/pinctrl-sun50i-a100-r.c | 2 |
5 files changed, 119 insertions, 39 deletions
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index 1cf74b0c42e5..d768dcf75cf1 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -292,7 +292,7 @@ config PINCTRL_MCP23S08 corresponding interrupt-controller. config PINCTRL_MICROCHIP_SGPIO - bool "Pinctrl driver for Microsemi/Microchip Serial GPIO" + tristate "Pinctrl driver for Microsemi/Microchip Serial GPIO" depends on OF depends on HAS_IOMEM select GPIOLIB @@ -310,6 +310,9 @@ config PINCTRL_MICROCHIP_SGPIO connect control signals from SFP modules and to act as an LED controller. + If compiled as a module, the module name will be + pinctrl-microchip-sgpio. + config PINCTRL_OCELOT tristate "Pinctrl driver for the Microsemi Ocelot and Jaguar2 SoCs" depends on OF diff --git a/drivers/pinctrl/pinctrl-microchip-sgpio.c b/drivers/pinctrl/pinctrl-microchip-sgpio.c index 6f55bf7d5e05..2b4167a09b3b 100644 --- a/drivers/pinctrl/pinctrl-microchip-sgpio.c +++ b/drivers/pinctrl/pinctrl-microchip-sgpio.c @@ -12,6 +12,7 @@ #include <linux/clk.h> #include <linux/gpio/driver.h> #include <linux/io.h> +#include <linux/mfd/ocelot.h> #include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/pinctrl/pinmux.h> @@ -904,7 +905,6 @@ static int microchip_sgpio_probe(struct platform_device *pdev) struct reset_control *reset; struct sgpio_priv *priv; struct clk *clk; - u32 __iomem *regs; u32 val; struct regmap_config regmap_config = { .reg_bits = 32, @@ -937,11 +937,7 @@ static int microchip_sgpio_probe(struct platform_device *pdev) return -EINVAL; } - regs = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(regs)) - return PTR_ERR(regs); - - priv->regs = devm_regmap_init_mmio(dev, regs, ®map_config); + priv->regs = ocelot_regmap_from_resource(pdev, 0, ®map_config); if (IS_ERR(priv->regs)) return PTR_ERR(priv->regs); @@ -999,6 +995,7 @@ static const struct of_device_id microchip_sgpio_gpio_of_match[] = { /* sentinel */ } }; +MODULE_DEVICE_TABLE(of, microchip_sgpio_gpio_of_match); static struct platform_driver microchip_sgpio_pinctrl_driver = { .driver = { @@ -1008,4 +1005,7 @@ static struct platform_driver microchip_sgpio_pinctrl_driver = { }, .probe = microchip_sgpio_probe, }; -builtin_platform_driver(microchip_sgpio_pinctrl_driver); +module_platform_driver(microchip_sgpio_pinctrl_driver); + +MODULE_DESCRIPTION("Microchip SGPIO Pinctrl Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/pinctrl/pinctrl-ocelot.c b/drivers/pinctrl/pinctrl-ocelot.c index c5fd154990c8..83464e0bf4e6 100644 --- a/drivers/pinctrl/pinctrl-ocelot.c +++ b/drivers/pinctrl/pinctrl-ocelot.c @@ -10,6 +10,7 @@ #include <linux/gpio/driver.h> #include <linux/interrupt.h> #include <linux/io.h> +#include <linux/mfd/ocelot.h> #include <linux/of_device.h> #include <linux/of_irq.h> #include <linux/of_platform.h> @@ -331,6 +332,7 @@ struct ocelot_pinctrl { const struct ocelot_pincfg_data *pincfg_data; struct ocelot_pmx_func func[FUNC_MAX]; u8 stride; + struct workqueue_struct *wq; }; struct ocelot_match_data { @@ -338,6 +340,11 @@ struct ocelot_match_data { struct ocelot_pincfg_data pincfg_data; }; +struct ocelot_irq_work { + struct work_struct irq_work; + struct irq_desc *irq_desc; +}; + #define LUTON_P(p, f0, f1) \ static struct ocelot_pin_caps luton_pin_##p = { \ .pin = p, \ @@ -1813,6 +1820,75 @@ static void ocelot_irq_mask(struct irq_data *data) gpiochip_disable_irq(chip, gpio); } +static void ocelot_irq_work(struct work_struct *work) +{ + struct ocelot_irq_work *w = container_of(work, struct ocelot_irq_work, irq_work); + struct irq_chip *parent_chip = irq_desc_get_chip(w->irq_desc); + struct gpio_chip *chip = irq_desc_get_chip_data(w->irq_desc); + struct irq_data *data = irq_desc_get_irq_data(w->irq_desc); + unsigned int gpio = irqd_to_hwirq(data); + + local_irq_disable(); + chained_irq_enter(parent_chip, w->irq_desc); + generic_handle_domain_irq(chip->irq.domain, gpio); + chained_irq_exit(parent_chip, w->irq_desc); + local_irq_enable(); + + kfree(w); +} + +static void ocelot_irq_unmask_level(struct irq_data *data) +{ + struct gpio_chip *chip = irq_data_get_irq_chip_data(data); + struct ocelot_pinctrl *info = gpiochip_get_data(chip); + struct irq_desc *desc = irq_data_to_desc(data); + unsigned int gpio = irqd_to_hwirq(data); + unsigned int bit = BIT(gpio % 32); + bool ack = false, active = false; + u8 trigger_level; + int val; + + trigger_level = irqd_get_trigger_type(data); + + /* Check if the interrupt line is still active. */ + regmap_read(info->map, REG(OCELOT_GPIO_IN, info, gpio), &val); + if ((!(val & bit) && trigger_level == IRQ_TYPE_LEVEL_LOW) || + (val & bit && trigger_level == IRQ_TYPE_LEVEL_HIGH)) + active = true; + + /* + * Check if the interrupt controller has seen any changes in the + * interrupt line. + */ + regmap_read(info->map, REG(OCELOT_GPIO_INTR, info, gpio), &val); + if (val & bit) + ack = true; + + /* Enable the interrupt now */ + gpiochip_enable_irq(chip, gpio); + regmap_update_bits(info->map, REG(OCELOT_GPIO_INTR_ENA, info, gpio), + bit, bit); + + /* + * In case the interrupt line is still active and the interrupt + * controller has not seen any changes in the interrupt line, then it + * means that there happen another interrupt while the line was active. + * So we missed that one, so we need to kick the interrupt again + * handler. + */ + if (active && !ack) { + struct ocelot_irq_work *work; + + work = kmalloc(sizeof(*work), GFP_ATOMIC); + if (!work) + return; + + work->irq_desc = desc; + INIT_WORK(&work->irq_work, ocelot_irq_work); + queue_work(info->wq, &work->irq_work); + } +} + static void ocelot_irq_unmask(struct irq_data *data) { struct gpio_chip *chip = irq_data_get_irq_chip_data(data); @@ -1836,13 +1912,12 @@ static void ocelot_irq_ack(struct irq_data *data) static int ocelot_irq_set_type(struct irq_data *data, unsigned int type); -static struct irq_chip ocelot_eoi_irqchip = { +static struct irq_chip ocelot_level_irqchip = { .name = "gpio", .irq_mask = ocelot_irq_mask, - .irq_eoi = ocelot_irq_ack, - .irq_unmask = ocelot_irq_unmask, - .flags = IRQCHIP_EOI_THREADED | IRQCHIP_EOI_IF_HANDLED | - IRQCHIP_IMMUTABLE, + .irq_ack = ocelot_irq_ack, + .irq_unmask = ocelot_irq_unmask_level, + .flags = IRQCHIP_IMMUTABLE, .irq_set_type = ocelot_irq_set_type, GPIOCHIP_IRQ_RESOURCE_HELPERS }; @@ -1859,14 +1934,9 @@ static struct irq_chip ocelot_irqchip = { static int ocelot_irq_set_type(struct irq_data *data, unsigned int type) { - type &= IRQ_TYPE_SENSE_MASK; - - if (!(type & (IRQ_TYPE_EDGE_BOTH | IRQ_TYPE_LEVEL_HIGH))) - return -EINVAL; - - if (type & IRQ_TYPE_LEVEL_HIGH) - irq_set_chip_handler_name_locked(data, &ocelot_eoi_irqchip, - handle_fasteoi_irq, NULL); + if (type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) + irq_set_chip_handler_name_locked(data, &ocelot_level_irqchip, + handle_level_irq, NULL); if (type & IRQ_TYPE_EDGE_BOTH) irq_set_chip_handler_name_locked(data, &ocelot_irqchip, handle_edge_irq, NULL); @@ -1975,7 +2045,6 @@ static int ocelot_pinctrl_probe(struct platform_device *pdev) struct ocelot_pinctrl *info; struct reset_control *reset; struct regmap *pincfg; - void __iomem *base; int ret; struct regmap_config regmap_config = { .reg_bits = 32, @@ -1996,6 +2065,10 @@ static int ocelot_pinctrl_probe(struct platform_device *pdev) if (!info->desc) return -ENOMEM; + info->wq = alloc_ordered_workqueue("ocelot_ordered", 0); + if (!info->wq) + return -ENOMEM; + info->pincfg_data = &data->pincfg_data; reset = devm_reset_control_get_optional_shared(dev, "switch"); @@ -2004,21 +2077,15 @@ static int ocelot_pinctrl_probe(struct platform_device *pdev) "Failed to get reset\n"); reset_control_reset(reset); - base = devm_ioremap_resource(dev, - platform_get_resource(pdev, IORESOURCE_MEM, 0)); - if (IS_ERR(base)) - return PTR_ERR(base); - info->stride = 1 + (info->desc->npins - 1) / 32; regmap_config.max_register = OCELOT_GPIO_SD_MAP * info->stride + 15 * 4; - info->map = devm_regmap_init_mmio(dev, base, ®map_config); - if (IS_ERR(info->map)) { - dev_err(dev, "Failed to create regmap\n"); - return PTR_ERR(info->map); - } - dev_set_drvdata(dev, info->map); + info->map = ocelot_regmap_from_resource(pdev, 0, ®map_config); + if (IS_ERR(info->map)) + return dev_err_probe(dev, PTR_ERR(info->map), + "Failed to create regmap\n"); + dev_set_drvdata(dev, info); info->dev = dev; /* Pinconf registers */ @@ -2043,6 +2110,15 @@ static int ocelot_pinctrl_probe(struct platform_device *pdev) return 0; } +static int ocelot_pinctrl_remove(struct platform_device *pdev) +{ + struct ocelot_pinctrl *info = platform_get_drvdata(pdev); + + destroy_workqueue(info->wq); + + return 0; +} + static struct platform_driver ocelot_pinctrl_driver = { .driver = { .name = "pinctrl-ocelot", @@ -2050,6 +2126,7 @@ static struct platform_driver ocelot_pinctrl_driver = { .suppress_bind_attrs = true, }, .probe = ocelot_pinctrl_probe, + .remove = ocelot_pinctrl_remove, }; module_platform_driver(ocelot_pinctrl_driver); MODULE_LICENSE("Dual MIT/GPL"); diff --git a/drivers/pinctrl/qcom/pinctrl-sc8180x.c b/drivers/pinctrl/qcom/pinctrl-sc8180x.c index 6bec7f143134..704a99d2f93c 100644 --- a/drivers/pinctrl/qcom/pinctrl-sc8180x.c +++ b/drivers/pinctrl/qcom/pinctrl-sc8180x.c @@ -530,10 +530,10 @@ DECLARE_MSM_GPIO_PINS(187); DECLARE_MSM_GPIO_PINS(188); DECLARE_MSM_GPIO_PINS(189); -static const unsigned int sdc2_clk_pins[] = { 190 }; -static const unsigned int sdc2_cmd_pins[] = { 191 }; -static const unsigned int sdc2_data_pins[] = { 192 }; -static const unsigned int ufs_reset_pins[] = { 193 }; +static const unsigned int ufs_reset_pins[] = { 190 }; +static const unsigned int sdc2_clk_pins[] = { 191 }; +static const unsigned int sdc2_cmd_pins[] = { 192 }; +static const unsigned int sdc2_data_pins[] = { 193 }; enum sc8180x_functions { msm_mux_adsp_ext, @@ -1582,7 +1582,7 @@ static const int sc8180x_acpi_reserved_gpios[] = { static const struct msm_gpio_wakeirq_map sc8180x_pdc_map[] = { { 3, 31 }, { 5, 32 }, { 8, 33 }, { 9, 34 }, { 10, 100 }, { 12, 104 }, { 24, 37 }, { 26, 38 }, { 27, 41 }, { 28, 42 }, { 30, 39 }, { 36, 43 }, - { 37, 43 }, { 38, 45 }, { 39, 118 }, { 39, 125 }, { 41, 47 }, + { 37, 44 }, { 38, 45 }, { 39, 118 }, { 39, 125 }, { 41, 47 }, { 42, 48 }, { 46, 50 }, { 47, 49 }, { 48, 51 }, { 49, 53 }, { 50, 52 }, { 51, 116 }, { 51, 123 }, { 53, 54 }, { 54, 55 }, { 55, 56 }, { 56, 57 }, { 58, 58 }, { 60, 60 }, { 68, 62 }, { 70, 63 }, { 76, 86 }, diff --git a/drivers/pinctrl/sunxi/pinctrl-sun50i-a100-r.c b/drivers/pinctrl/sunxi/pinctrl-sun50i-a100-r.c index afc1f5df7545..b82ad135bf2a 100644 --- a/drivers/pinctrl/sunxi/pinctrl-sun50i-a100-r.c +++ b/drivers/pinctrl/sunxi/pinctrl-sun50i-a100-r.c @@ -99,7 +99,7 @@ MODULE_DEVICE_TABLE(of, a100_r_pinctrl_match); static struct platform_driver a100_r_pinctrl_driver = { .probe = a100_r_pinctrl_probe, .driver = { - .name = "sun50iw10p1-r-pinctrl", + .name = "sun50i-a100-r-pinctrl", .of_match_table = a100_r_pinctrl_match, }, }; |