From b056ca1c2f01b2d261c2dd6d167c17ac27977034 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 4 Nov 2019 18:09:39 +0200 Subject: 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 Reviewed-by: Linus Walleij Reviewed-by: Mika Westerberg Reviewed-by: Hans de Goede Tested-by: Hans de Goede --- drivers/gpio/gpiolib.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/gpio') 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); -- cgit v1.2.3