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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2014-01-08 12:40:54 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2014-01-08 15:07:28 +0100 |
| commit | 664e3e5ac64c8a1999e2d94bc307e5bcd17d3646 (patch) | |
| tree | 70d7a7e03a4a672da14cce26b34b2a3e29a37fbe /drivers/gpio/gpiolib.c | |
| parent | 878756553271dd631ee7f06fe489103957753fdd (diff) | |
| download | linux-0-day-664e3e5ac64c8a1999e2d94bc307e5bcd17d3646.tar.gz linux-0-day-664e3e5ac64c8a1999e2d94bc307e5bcd17d3646.tar.xz | |
gpio / ACPI: register to ACPI events automatically
Instead of asking each driver to register to ACPI events we can just call
acpi_gpiochip_register_interrupts() for each chip that has an ACPI handle.
The function checks chip->to_irq and if it is set to NULL (a GPIO driver
that doesn't do interrupts) the function does nothing.
We also add the a new header drivers/gpio/gpiolib.h that is used for
functions internal to gpiolib and add ACPI GPIO chip registering functions
to that header.
Once that is done we can remove call to acpi_gpiochip_register_interrupts()
from its only user, pinctrl-baytrail.c
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpiolib.c')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index c0b06a9adad9e..0de4069e33abc 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -16,6 +16,8 @@ #include <linux/acpi.h> #include <linux/gpio/driver.h> +#include "gpiolib.h" + #define CREATE_TRACE_POINTS #include <trace/events/gpio.h> @@ -1226,6 +1228,7 @@ int gpiochip_add(struct gpio_chip *chip) #endif of_gpiochip_add(chip); + acpi_gpiochip_add(chip); if (status) goto fail; @@ -1267,6 +1270,7 @@ int gpiochip_remove(struct gpio_chip *chip) gpiochip_remove_pin_ranges(chip); of_gpiochip_remove(chip); + acpi_gpiochip_remove(chip); for (id = 0; id < chip->ngpio; id++) { if (test_bit(FLAG_REQUESTED, &chip->desc[id].flags)) { |