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gpio: acpi: Override GPIO initialization flags

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This allows ACPI GPIO code to modify flags based on
ACPI GpioIo() / GpioInt() resources.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andy Shevchenko
2017-05-23 20:03:23 +03:00
committed by Linus Walleij
parent 2eca25af05
commit a31f5c3a68
3 changed files with 67 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpio/gpiolib.h
+13 -2
View File
@@ -75,11 +75,13 @@ struct gpio_device {
/**
* struct acpi_gpio_info - ACPI GPIO specific information
* @flags: GPIO initialization flags
* @gpioint: if %true this GPIO is of type GpioInt otherwise type is GpioIo
* @polarity: interrupt polarity as provided by ACPI
* @triggering: triggering type as provided by ACPI
*/
struct acpi_gpio_info {
enum gpiod_flags flags;
bool gpioint;
int polarity;
int triggering;
@@ -121,10 +123,13 @@ void acpi_gpiochip_remove(struct gpio_chip *chip);
void acpi_gpiochip_request_interrupts(struct gpio_chip *chip);
void acpi_gpiochip_free_interrupts(struct gpio_chip *chip);
int acpi_gpio_update_gpiod_flags(enum gpiod_flags *flags,
enum gpiod_flags update);
struct gpio_desc *acpi_find_gpio(struct device *dev,
const char *con_id,
unsigned int idx,
enum gpiod_flags flags,
enum gpiod_flags *dflags,
enum gpio_lookup_flags *lookupflags);
struct gpio_desc *acpi_node_get_gpiod(struct fwnode_handle *fwnode,
const char *propname, int index,
@@ -143,9 +148,15 @@ acpi_gpiochip_request_interrupts(struct gpio_chip *chip) { }
static inline void
acpi_gpiochip_free_interrupts(struct gpio_chip *chip) { }
static inline int
acpi_gpio_update_gpiod_flags(enum gpiod_flags *flags, enum gpiod_flags update)
{
return 0;
}
static inline struct gpio_desc *
acpi_find_gpio(struct device *dev, const char *con_id,
unsigned int idx, enum gpiod_flags flags,
unsigned int idx, enum gpiod_flags *dflags,
enum gpio_lookup_flags *lookupflags)
{
return ERR_PTR(-ENOENT);