From: Andy Shevchenko Date: Fri, 10 Nov 2017 13:40:28 +0000 (+0200) Subject: gpiolib: acpi: Assign polarity when call acpi_populate_gpio_lookup() X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f67a6c11f99a0b7015dea7378b5e82e371425710;p=linux.git gpiolib: acpi: Assign polarity when call acpi_populate_gpio_lookup() There is no need, since we preserve firmware settings, to override polarity for GpioInt() resources. While Documentation/gpio-properties.txt refers to any from GpioIo() / GpioInt() resources, the active_low flag has been introduced to fill the gap only for GpioIo() which lacks of that information. Moreover, in case of GpioInt() existed solution was broken anyway, it overrides only in one direction, i.e. from 0 to 1, otherwise it would be still 1 as defined in the resource macro. So, move the assignment to a right place and forbid to (semi-)override polarity for GpioInt() type of resources. Signed-off-by: Andy Shevchenko Reviewed-by: Mika Westerberg Signed-off-by: Linus Walleij --- diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index eb4528c87c0b3..2a85d27eb0280 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -531,8 +531,8 @@ static int acpi_populate_gpio_lookup(struct acpi_resource *ares, void *data) lookup->info.triggering = agpio->triggering; } else { lookup->info.flags = acpi_gpio_to_gpiod_flags(agpio); + lookup->info.polarity = lookup->active_low; } - } return 1; @@ -557,11 +557,8 @@ static int acpi_gpio_resource_lookup(struct acpi_gpio_lookup *lookup, if (!lookup->desc) return -ENOENT; - if (info) { + if (info) *info = lookup->info; - if (lookup->active_low) - info->polarity = lookup->active_low; - } return 0; }