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gpiolib: acpi: Add ACPI_GPIO_QUIRK_ABSOLUTE_NUMBER quirk

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On some systems the ACPI tables has wrong pin number and instead of
having a relative one it provides an absolute one in the global GPIO
number space.

Add ACPI_GPIO_QUIRK_ABSOLUTE_NUMBER quirk to cope with such cases.

Fixes: ba8c90c618 ("gpio: pca953x: Override IRQ for one of the expanders on Galileo Gen 2")
Depends-on: 0ea683931a ("gpio: dwapb: Convert driver to using the GPIO-lib-based IRQ-chip")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andy Shevchenko 2021-02-25 18:33:18 +02:00 • committed by Bartosz Golaszewski
parent 6e5d579173
commit 62d5247d23
2 changed files with 8 additions and 1 deletions
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2
include/linux/gpio/consumer.h
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@ -674,6 +674,8 @@ struct acpi_gpio_mapping {
* get GpioIo type explicitly, this quirk may be used.
*/
#define ACPI_GPIO_QUIRK_ONLY_GPIOIO BIT(1)
/* Use given pin as an absolute GPIO number in the system */
#define ACPI_GPIO_QUIRK_ABSOLUTE_NUMBER BIT(2)
unsigned int quirks;
};