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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2022-05-12 20:39:19 +0300
committerAndy Shevchenko <andriy.shevchenko@linux.intel.com>2022-05-16 20:16:54 +0300
commit6d209b42947ae5d15b86ab220dbac52f13748c6c (patch)
treeddf054be05c789af81f6f95745d93ef3528560e8 /drivers/pinctrl
parente9fdcc2d8376d15ea22c0e985eeca20330f8ff17 (diff)
downloadlinux-6d209b42947ae5d15b86ab220dbac52f13748c6c.tar.xz
pinctrl: baytrail: make irq_chip immutable
Since recently, the kernel is nagging about mutable irq_chips: "not an immutable chip, please consider fixing it!" Drop the unneeded copy, flag it as IRQCHIP_IMMUTABLE, add the new helper functions and call the appropriate gpiolib functions. While at it, switch to use hwirq variable instead of offset for the sake of consistency. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/intel/pinctrl-baytrail.c42
1 files changed, 25 insertions, 17 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c
index f89c9fcd4e1b..31f8f271628c 100644
--- a/drivers/pinctrl/intel/pinctrl-baytrail.c
+++ b/drivers/pinctrl/intel/pinctrl-baytrail.c
@@ -1350,15 +1350,15 @@ static void byt_irq_ack(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct intel_pinctrl *vg = gpiochip_get_data(gc);
- unsigned int offset = irqd_to_hwirq(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
void __iomem *reg;
- reg = byt_gpio_reg(vg, offset, BYT_INT_STAT_REG);
+ reg = byt_gpio_reg(vg, hwirq, BYT_INT_STAT_REG);
if (!reg)
return;
raw_spin_lock(&byt_lock);
- writel(BIT(offset % 32), reg);
+ writel(BIT(hwirq % 32), reg);
raw_spin_unlock(&byt_lock);
}
@@ -1366,20 +1366,24 @@ static void byt_irq_mask(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct intel_pinctrl *vg = gpiochip_get_data(gc);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
- byt_gpio_clear_triggering(vg, irqd_to_hwirq(d));
+ byt_gpio_clear_triggering(vg, hwirq);
+ gpiochip_disable_irq(gc, hwirq);
}
static void byt_irq_unmask(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct intel_pinctrl *vg = gpiochip_get_data(gc);
- unsigned int offset = irqd_to_hwirq(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
unsigned long flags;
void __iomem *reg;
u32 value;
- reg = byt_gpio_reg(vg, offset, BYT_CONF0_REG);
+ gpiochip_enable_irq(gc, hwirq);
+
+ reg = byt_gpio_reg(vg, hwirq, BYT_CONF0_REG);
if (!reg)
return;
@@ -1412,12 +1416,13 @@ static void byt_irq_unmask(struct irq_data *d)
static int byt_irq_type(struct irq_data *d, unsigned int type)
{
struct intel_pinctrl *vg = gpiochip_get_data(irq_data_get_irq_chip_data(d));
- u32 offset = irqd_to_hwirq(d);
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
u32 value;
unsigned long flags;
- void __iomem *reg = byt_gpio_reg(vg, offset, BYT_CONF0_REG);
+ void __iomem *reg;
- if (!reg || offset >= vg->chip.ngpio)
+ reg = byt_gpio_reg(vg, hwirq, BYT_CONF0_REG);
+ if (!reg)
return -EINVAL;
raw_spin_lock_irqsave(&byt_lock, flags);
@@ -1447,6 +1452,16 @@ static int byt_irq_type(struct irq_data *d, unsigned int type)
return 0;
}
+static const struct irq_chip byt_gpio_irq_chip = {
+ .name = "BYT-GPIO",
+ .irq_ack = byt_irq_ack,
+ .irq_mask = byt_irq_mask,
+ .irq_unmask = byt_irq_unmask,
+ .irq_set_type = byt_irq_type,
+ .flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_SET_TYPE_MASKED | IRQCHIP_IMMUTABLE,
+ GPIOCHIP_IRQ_RESOURCE_HELPERS,
+};
+
static void byt_gpio_irq_handler(struct irq_desc *desc)
{
struct irq_data *data = irq_desc_get_irq_data(desc);
@@ -1633,15 +1648,8 @@ static int byt_gpio_probe(struct intel_pinctrl *vg)
if (irq > 0) {
struct gpio_irq_chip *girq;
- vg->irqchip.name = "BYT-GPIO",
- vg->irqchip.irq_ack = byt_irq_ack,
- vg->irqchip.irq_mask = byt_irq_mask,
- vg->irqchip.irq_unmask = byt_irq_unmask,
- vg->irqchip.irq_set_type = byt_irq_type,
- vg->irqchip.flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_SET_TYPE_MASKED,
-
girq = &gc->irq;
- girq->chip = &vg->irqchip;
+ gpio_irq_chip_set_chip(girq, &byt_gpio_irq_chip);
girq->init_hw = byt_gpio_irq_init_hw;
girq->init_valid_mask = byt_init_irq_valid_mask;
girq->parent_handler = byt_gpio_irq_handler;