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| author | Alexandre Courbot <acourbot@nvidia.com> | 2014-07-22 09:17:42 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2014-07-23 17:43:24 +0200 |
| commit | d74be6dfea1b96cfb4bd79d9254fa9d21ed5f131 (patch) | |
| tree | 376ed1e1d51a70262f825af17eee4eb56e363666 /Documentation/gpio | |
| parent | gpio: make gpiochip_get_desc() gpiolib-private (diff) | |
| download | linux-d74be6dfea1b96cfb4bd79d9254fa9d21ed5f131.tar.xz linux-d74be6dfea1b96cfb4bd79d9254fa9d21ed5f131.zip | |
gpio: remove gpiod_lock/unlock_as_irq()
gpio_lock/unlock_as_irq() are working with (chip, offset) arguments and
are thus not using the old integer namespace. Therefore, there is no
reason to have gpiod variants of these functions working with
descriptors, especially since the (chip, offset) tuple is more suitable
to the users of these functions (GPIO drivers, whereas GPIO descriptors
are targeted at GPIO consumers).
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation/gpio')
| -rw-r--r-- | Documentation/gpio/driver.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/gpio/driver.txt b/Documentation/gpio/driver.txt index fa9a0a8b3734..224dbbcd1804 100644 --- a/Documentation/gpio/driver.txt +++ b/Documentation/gpio/driver.txt @@ -157,12 +157,12 @@ Locking IRQ usage Input GPIOs can be used as IRQ signals. When this happens, a driver is requested to mark the GPIO as being used as an IRQ: - int gpiod_lock_as_irq(struct gpio_desc *desc) + int gpio_lock_as_irq(struct gpio_chip *chip, unsigned int offset) This will prevent the use of non-irq related GPIO APIs until the GPIO IRQ lock is released: - void gpiod_unlock_as_irq(struct gpio_desc *desc) + void gpio_unlock_as_irq(struct gpio_chip *chip, unsigned int offset) When implementing an irqchip inside a GPIO driver, these two functions should typically be called in the .startup() and .shutdown() callbacks from the |