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Documentation: gpio: Advertise irqd_to_hwirq() helper in the examples 

Instead of direct dereferencing the IRQ data in order to get HW IRQ number
use the irqd_to_hwirq() helper.

Fixes: 5644b66a9c ("Documentation: Update the recommended pattern for GPIO irqchips")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andy Shevchenko 2022-05-12 20:39:18 +03:00
parent bdb6528ec5
commit e9fdcc2d83
1 changed files with 12 additions and 6 deletions
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18
Documentation/driver-api/gpio/driver.rst
View File

@ -430,6 +430,7 @@ call into the core gpiolib code:
static void my_gpio_mask_irq(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
irq_hw_number_t hwirq = irqd_to_hwirq(d);
/*
* Perform any necessary action to mask the interrupt,
@ -437,14 +438,15 @@ call into the core gpiolib code:
* state.
*/
gpiochip_disable_irq(gc, d->hwirq);
gpiochip_disable_irq(gc, hwirq);
}
static void my_gpio_unmask_irq(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
irq_hw_number_t hwirq = irqd_to_hwirq(d);
gpiochip_enable_irq(gc, d->hwirq);
gpiochip_enable_irq(gc, hwirq);
/*
* Perform any necessary action to unmask the interrupt,
@ -502,6 +504,7 @@ the interrupt separately and go with it:
static void my_gpio_mask_irq(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
irq_hw_number_t hwirq = irqd_to_hwirq(d);
/*
* Perform any necessary action to mask the interrupt,
@ -509,14 +512,15 @@ the interrupt separately and go with it:
* state.
*/
gpiochip_disable_irq(gc, d->hwirq);
gpiochip_disable_irq(gc, hwirq);
}
static void my_gpio_unmask_irq(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
irq_hw_number_t hwirq = irqd_to_hwirq(d);
gpiochip_enable_irq(gc, d->hwirq);
gpiochip_enable_irq(gc, hwirq);
/*
* Perform any necessary action to unmask the interrupt,
@ -577,6 +581,7 @@ In this case the typical set-up will look like this:
static void my_gpio_mask_irq(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
irq_hw_number_t hwirq = irqd_to_hwirq(d);
/*
* Perform any necessary action to mask the interrupt,
@ -584,15 +589,16 @@ In this case the typical set-up will look like this:
* state.
*/
gpiochip_disable_irq(gc, d->hwirq);
gpiochip_disable_irq(gc, hwirq);
irq_mask_mask_parent(d);
}
static void my_gpio_unmask_irq(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
irq_hw_number_t hwirq = irqd_to_hwirq(d);
gpiochip_enable_irq(gc, d->hwirq);
gpiochip_enable_irq(gc, hwirq);
/*
* Perform any necessary action to unmask the interrupt,