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gpiolib: acpi: Add wake_capable variants of acpi_dev_gpio_irq_get

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The ACPI spec defines the SharedAndWake and ExclusiveAndWake share type
keywords. This is an indication that the GPIO IRQ can also be used as a
wake source. This change exposes the wake_capable bit so drivers can
correctly enable wake functionality instead of making an assumption.

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Raul E Rangel 2022-09-29 10:19:09 -06:00 • committed by Rafael J. Wysocki
parent f76349cf41
commit 4c99256013
3 changed files with 31 additions and 7 deletions
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21
include/linux/acpi.h
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@ -1202,7 +1202,8 @@ bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
struct acpi_resource_gpio **agpio);
bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
struct acpi_resource_gpio **agpio);
int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index);
int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, int index,
bool *wake_capable);
#else
static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
struct acpi_resource_gpio **agpio)
@ -1214,16 +1215,28 @@ static inline bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
{
return false;
}
static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev,
const char *name, int index)
static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name,
int index, bool *wake_capable)
{
return -ENXIO;
}
#endif
static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index,
bool *wake_capable)
{
return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable);
}
static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name,
int index)
{
return acpi_dev_gpio_irq_wake_get_by(adev, name, index, NULL);
}
static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
{
return acpi_dev_gpio_irq_get_by(adev, NULL, index);
return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL);
}
/* Device properties */