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gpio/xilinx: Fix kernel-doc 

Some documentation were not following the kernel-doc format.
Backporting patch from Xilinx git repository.

Suggested-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
Ricardo Ribalda Delgado 2014-12-17 16:51:11 +01:00 committed by Linus Walleij
parent c54c58bad6
commit 4ae798fae2
1 changed files with 21 additions and 16 deletions
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37
drivers/gpio/gpio-xilinx.c
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@ -40,11 +40,11 @@
/**
* struct xgpio_instance - Stores information about GPIO device
* struct of_mm_gpio_chip mmchip: OF GPIO chip for memory mapped banks
* gpio_state: GPIO state shadow register
* gpio_dir: GPIO direction shadow register
* gpio_lock: Lock used for synchronization
* inited: True if the port has been inited
* @mmchip: OF GPIO chip for memory mapped banks
* @gpio_state: GPIO state shadow register
* @gpio_dir: GPIO direction shadow register
* @gpio_lock: Lock used for synchronization
* @inited: True if the port has been inited
*/
struct xgpio_instance {
struct of_mm_gpio_chip mmchip;
@ -63,8 +63,11 @@ struct xgpio {
* @gc: Pointer to gpio_chip device structure.
* @gpio: GPIO signal number.
*
* This function reads the specified signal of the GPIO device. It returns 0 if
* the signal clear, 1 if signal is set or negative value on error.
* This function reads the specified signal of the GPIO device.
*
* Return:
* 0 if direction of GPIO signals is set as input otherwise it
* returns negative error value.
*/
static int xgpio_get(struct gpio_chip *gc, unsigned int gpio)
{
@ -107,9 +110,9 @@ static void xgpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
* @gc: Pointer to gpio_chip device structure.
* @gpio: GPIO signal number.
*
* This function sets the direction of specified GPIO signal as input.
* It returns 0 if direction of GPIO signals is set as input otherwise it
* returns negative error value.
* Return:
* 0 - if direction of GPIO signals is set as input
* otherwise it returns negative error value.
*/
static int xgpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
{
@ -135,8 +138,10 @@ static int xgpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
* @gpio: GPIO signal number.
* @val: Value to be written to specified signal.
*
* This function sets the direction of specified GPIO signal as output. If all
* GPIO signals of GPIO chip is configured as input then it returns
* This function sets the direction of specified GPIO signal as output.
*
* Return:
* If all GPIO signals of GPIO chip is configured as input then it returns
* error otherwise it returns 0.
*/
static int xgpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
@ -166,7 +171,7 @@ static int xgpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
/**
* xgpio_save_regs - Set initial values of GPIO pins
* @mm_gc: pointer to memory mapped GPIO chip structure
* @mm_gc: Pointer to memory mapped GPIO chip structure
*/
static void xgpio_save_regs(struct of_mm_gpio_chip *mm_gc)
{
@ -207,9 +212,9 @@ static int xgpio_remove(struct platform_device *pdev)
* xgpio_of_probe - Probe method for the GPIO device.
* @pdev: pointer to the platform device
*
* This function probes the GPIO device in the device tree. It initializes the
* driver data structure. It returns 0, if the driver is bound to the GPIO
* device, or a negative value if there is an error.
* Return:
* It returns 0, if the driver is bound to the GPIO device, or
* a negative value if there is an error.
*/
static int xgpio_probe(struct platform_device *pdev)
{