diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2019-02-06 22:49:46 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-02-08 17:29:51 +0000 |
| commit | 4d1f7a6eabd45639d9de22a8a004f3c208d13c1a (patch) | |
| tree | f83bd63b85d09c898b4137c3f9f2922a20de11ad /include/linux/acpi.h | |
| parent | 3ebc584ce7d1cc73151682c77ad2bea9318ddf98 (diff) | |
gpiolib: acpi: Introduce ACPI_GPIO_QUIRK_ONLY_GPIOIO
New quirk enforces search for GPIO based on its type,
i.e. iterate over GpioIo resources only.
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>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/acpi.h')
| -rw-r--r-- | include/linux/acpi.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 87715f20b69a..03b4c4f225d0 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -1014,6 +1014,13 @@ struct acpi_gpio_mapping { /* Ignore IoRestriction field */ #define ACPI_GPIO_QUIRK_NO_IO_RESTRICTION BIT(0) +/* + * When ACPI GPIO mapping table is in use the index parameter inside it + * refers to the GPIO resource in _CRS method. That index has no + * distinction of actual type of the resource. When consumer wants to + * get GpioIo type explicitly, this quirk may be used. + */ +#define ACPI_GPIO_QUIRK_ONLY_GPIOIO BIT(1) unsigned int quirks; }; |