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| author |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-05-12 20:39:18 +0300 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2022-05-16 20:16:54 +0300 |
| commit | e9fdcc2d8376d15ea22c0e985eeca20330f8ff17 (patch) | |
| tree | 2153ab378895bbeec59d76aa6f7df887d5c87b1a /Documentation/driver-api/gpio/driver.rst | |
| parent | Documentation: gpio: Fix IRQ mask and unmask examples (diff) | |
| download | linux-dev-e9fdcc2d8376d15ea22c0e985eeca20330f8ff17.tar.xz linux-dev-e9fdcc2d8376d15ea22c0e985eeca20330f8ff17.zip | |
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: 5644b66a9c63 ("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>
Diffstat (limited to 'Documentation/driver-api/gpio/driver.rst')
| -rw-r--r-- | Documentation/driver-api/gpio/driver.rst | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/Documentation/driver-api/gpio/driver.rst b/Documentation/driver-api/gpio/driver.rst index 964d09118d17..70ff43ac4fcc 100644 --- a/Documentation/driver-api/gpio/driver.rst +++ b/Documentation/driver-api/gpio/driver.rst @@ -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, |