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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-11-04 17:09:39 +0100 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-11-13 14:30:30 +0100 |
| commit | b056ca1c2f01b2d261c2dd6d167c17ac27977034 (patch) | |
| tree | 36e9dcf5172aad727f999868252887d4a2b89a9e /drivers/gpio | |
| parent | Merge branch 'devel' into for-next (diff) | |
| download | linux-b056ca1c2f01b2d261c2dd6d167c17ac27977034.tar.xz linux-b056ca1c2f01b2d261c2dd6d167c17ac27977034.zip | |
gpiolib: Introduce ->add_pin_ranges() callback
When IRQ chip is being added by GPIO library, the ACPI based platform expects
GPIO <-> pin mapping ranges to be initialized in order to correctly initialize
ACPI event mechanism on affected platforms. Unfortunately this step is missed.
Introduce ->add_pin_ranges() callback to fill the above mentioned gap.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 731d732cdc2b..1dc144f83483 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -390,6 +390,14 @@ static void gpiochip_free_valid_mask(struct gpio_chip *gpiochip) gpiochip->valid_mask = NULL; } +static int gpiochip_add_pin_ranges(struct gpio_chip *gc) +{ + if (gc->add_pin_ranges) + return gc->add_pin_ranges(gc); + + return 0; +} + bool gpiochip_line_is_valid(const struct gpio_chip *gpiochip, unsigned int offset) { @@ -1397,6 +1405,10 @@ int gpiochip_add_data_with_key(struct gpio_chip *chip, void *data, } } + ret = gpiochip_add_pin_ranges(chip); + if (ret) + goto err_remove_of_chip; + acpi_gpiochip_add(chip); machine_gpiochip_add(chip); |