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gpio: of: Make of_gpio_get_count() take firmware node as a parameter

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Make of_gpio_get_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.

While at it, rename to be of_gpio_count() to be aligned with the others.

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 16:51:38 +02:00 committed by Bartosz Golaszewski
parent 0d776cfd5e
commit adcad5364a
3 changed files with 12 additions and 10 deletions
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14
drivers/gpio/gpiolib-of.c
View file

@ -68,7 +68,7 @@ static int of_gpio_named_count(const struct device_node *np,
/**
* of_gpio_spi_cs_get_count() - special GPIO counting for SPI
* @dev: Consuming device
* @np: Consuming device node
* @con_id: Function within the GPIO consumer
*
* Some elder GPIO controllers need special quirks. Currently we handle
@ -78,10 +78,9 @@ static int of_gpio_named_count(const struct device_node *np,
* the counting of "cs-gpios" to count "gpios" transparent to the
* driver.
*/
static int of_gpio_spi_cs_get_count(struct device *dev, const char *con_id)
static int of_gpio_spi_cs_get_count(const struct device_node *np,
const char *con_id)
{
struct device_node *np = dev->of_node;
if (!IS_ENABLED(CONFIG_SPI_MASTER))
return 0;
if (!con_id || strcmp(con_id, "cs"))
@ -93,13 +92,14 @@ static int of_gpio_spi_cs_get_count(struct device *dev, const char *con_id)
return of_gpio_named_count(np, "gpios");
}
int of_gpio_get_count(struct device *dev, const char *con_id)
int of_gpio_count(const struct fwnode_handle *fwnode, const char *con_id)
{
const struct device_node *np = to_of_node(fwnode);
int ret;
char propname[32];
unsigned int i;
ret = of_gpio_spi_cs_get_count(dev, con_id);
ret = of_gpio_spi_cs_get_count(np, con_id);
if (ret > 0)
return ret;
@ -111,7 +111,7 @@ int of_gpio_get_count(struct device *dev, const char *con_id)
snprintf(propname, sizeof(propname), "%s",
gpio_suffixes[i]);
ret = of_gpio_named_count(dev->of_node, propname);
ret = of_gpio_named_count(np, propname);
if (ret > 0)
break;
}

6
drivers/gpio/gpiolib-of.h
View file

@ -9,6 +9,7 @@
#include <linux/notifier.h>
struct device;
struct fwnode_handle;
struct gpio_chip;
struct gpio_desc;
@ -21,7 +22,7 @@ struct gpio_desc *of_find_gpio(struct device_node *np,
unsigned long *lookupflags);
int of_gpiochip_add(struct gpio_chip *gc);
void of_gpiochip_remove(struct gpio_chip *gc);
int of_gpio_get_count(struct device *dev, const char *con_id);
int of_gpio_count(const struct fwnode_handle *fwnode, const char *con_id);
#else
static inline struct gpio_desc *of_find_gpio(struct device_node *np,
const char *con_id,
@ -32,7 +33,8 @@ static inline struct gpio_desc *of_find_gpio(struct device_node *np,
}
static inline int of_gpiochip_add(struct gpio_chip *gc) { return 0; }
static inline void of_gpiochip_remove(struct gpio_chip *gc) { }
static inline int of_gpio_get_count(struct device *dev, const char *con_id)
static inline int of_gpio_count(const struct fwnode_handle *fwnode,
const char *con_id)
{
return 0;
}

2
drivers/gpio/gpiolib.c
View file

@ -4285,7 +4285,7 @@ int gpiod_count(struct device *dev, const char *con_id)
int count = -ENOENT;
if (is_of_node(fwnode))
count = of_gpio_get_count(dev, con_id);
count = of_gpio_count(fwnode, con_id);
else if (is_acpi_node(fwnode))
count = acpi_gpio_count(dev, con_id);
else if (is_software_node(fwnode))