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gpio: acpi: Make acpi_gpio_count() take firmware node as a parameter

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Make acpi_gpio_count() take firmware node as a parameter in order
to be aligned with other functions and decouple from unused device
pointer. The latter helps to create a common fwnode_gpio_count()
in the future.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Andy Shevchenko 2024-02-29 16:51:39 +02:00 committed by Bartosz Golaszewski
parent adcad5364a
commit 8122c7c625
3 changed files with 10 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/gpio/gpiolib-acpi.c
View File

@ -1402,17 +1402,17 @@ static int acpi_find_gpio_count(struct acpi_resource *ares, void *data)
}
/**
* acpi_gpio_count - count the GPIOs associated with a device / function
* @dev: GPIO consumer, can be %NULL for system-global GPIOs
* acpi_gpio_count - count the GPIOs associated with a firmware node / function
* @fwnode: firmware node of the GPIO consumer
* @con_id: function within the GPIO consumer
*
* Return:
* The number of GPIOs associated with a device / function or %-ENOENT,
* The number of GPIOs associated with a firmware node / function or %-ENOENT,
* if no GPIO has been assigned to the requested function.
*/
int acpi_gpio_count(struct device *dev, const char *con_id)
int acpi_gpio_count(const struct fwnode_handle *fwnode, const char *con_id)
{
struct acpi_device *adev = ACPI_COMPANION(dev);
struct acpi_device *adev = to_acpi_device_node(fwnode);
const union acpi_object *obj;
const struct acpi_gpio_mapping *gm;
int count = -ENOENT;
@ -1429,8 +1429,7 @@ int acpi_gpio_count(struct device *dev, const char *con_id)
snprintf(propname, sizeof(propname), "%s",
gpio_suffixes[i]);
ret = acpi_dev_get_property(adev, propname, ACPI_TYPE_ANY,
&obj);
ret = acpi_dev_get_property(adev, propname, ACPI_TYPE_ANY, &obj);
if (ret == 0) {
if (obj->type == ACPI_TYPE_LOCAL_REFERENCE)
count = 1;

5
drivers/gpio/gpiolib-acpi.h
View File

@ -33,7 +33,7 @@ struct gpio_desc *acpi_find_gpio(struct fwnode_handle *fwnode,
enum gpiod_flags *dflags,
unsigned long *lookupflags);
int acpi_gpio_count(struct device *dev, const char *con_id);
int acpi_gpio_count(const struct fwnode_handle *fwnode, const char *con_id);
#else
static inline void acpi_gpiochip_add(struct gpio_chip *chip) { }
static inline void acpi_gpiochip_remove(struct gpio_chip *chip) { }
@ -51,7 +51,8 @@ acpi_find_gpio(struct fwnode_handle *fwnode, const char *con_id,
{
return ERR_PTR(-ENOENT);
}
static inline int acpi_gpio_count(struct device *dev, const char *con_id)
static inline int acpi_gpio_count(const struct fwnode_handle *fwnode,
const char *con_id)
{
return -ENODEV;
}

2
drivers/gpio/gpiolib.c
View File

@ -4287,7 +4287,7 @@ int gpiod_count(struct device *dev, const char *con_id)
if (is_of_node(fwnode))
count = of_gpio_count(fwnode, con_id);
else if (is_acpi_node(fwnode))
count = acpi_gpio_count(dev, con_id);
count = acpi_gpio_count(fwnode, con_id);
else if (is_software_node(fwnode))
count = swnode_gpio_count(fwnode, con_id);