mirrors/u-boot
0
0
Fork 0
mirror of https://github.com/u-boot/u-boot.git synced 2024-12-02 09:03:27 +08:00
Code Issues Packages Projects Releases Wiki Activity

dm: gpio: Mark the old GPIO API deprecated

Browse Source 
Add a deprecation notice to each function so that it is more obvious that we
are moving GPIOs to driver model.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2015-01-05 20:05:30 -07:00
parent 3669e0e759
commit 5d1c17e9a5
1 changed files with 21 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
include/asm-generic/gpio.h
View File

@ -10,6 +10,15 @@
/*
* Generic GPIO API for U-Boot
*
* --
* NB: This is deprecated. Please use the driver model functions instead:
*
* - gpio_request_by_name()
* - dm_gpio_get_value() etc.
*
* For now we need a dm_ prefix on some functions to avoid name collision.
* --
*
* GPIOs are numbered from 0 to GPIO_COUNT-1 which value is defined
* by the SOC/architecture.
*
@ -26,6 +35,7 @@
*/
/**
* @deprecated Please use driver model instead
* Request a GPIO. This should be called before any of the other functions
* are used on this GPIO.
*
@ -39,6 +49,7 @@
int gpio_request(unsigned gpio, const char *label);
/**
* @deprecated Please use driver model instead
* Stop using the GPIO. This function should not alter pin configuration.
*
* @param gpio GPIO number
@ -47,6 +58,7 @@ int gpio_request(unsigned gpio, const char *label);
int gpio_free(unsigned gpio);
/**
* @deprecated Please use driver model instead
* Make a GPIO an input.
*
* @param gpio GPIO number
@ -55,6 +67,7 @@ int gpio_free(unsigned gpio);
int gpio_direction_input(unsigned gpio);
/**
* @deprecated Please use driver model instead
* Make a GPIO an output, and set its value.
*
* @param gpio GPIO number
@ -64,6 +77,7 @@ int gpio_direction_input(unsigned gpio);
int gpio_direction_output(unsigned gpio, int value);
/**
* @deprecated Please use driver model instead
* Get a GPIO's value. This will work whether the GPIO is an input
* or an output.
*
@ -73,6 +87,7 @@ int gpio_direction_output(unsigned gpio, int value);
int gpio_get_value(unsigned gpio);
/**
* @deprecated Please use driver model instead
* Set an output GPIO's value. The GPIO must already be an output or
* this function may have no effect.
*
@ -134,6 +149,8 @@ static inline bool dm_gpio_is_valid(struct gpio_desc *desc)
* which means this is GPIO bank b, offset 4, currently set to input, current
* value 1, [x] means that it is requested and the owner is 'sdmmc_cd'
*
* TODO(sjg@chromium.org): This should use struct gpio_desc
*
* @dev: Device to check
* @offset: Offset of device GPIO to check
* @buf: Place to put string
@ -146,6 +163,8 @@ int gpio_get_status(struct udevice *dev, int offset, char *buf, int buffsize);
*
* Note this returns GPIOF_UNUSED if the GPIO is not requested.
*
* TODO(sjg@chromium.org): This should use struct gpio_desc
*
* @dev: Device to check
* @offset: Offset of device GPIO to check
* @namep: If non-NULL, this is set to the nane given when the GPIO
@ -163,6 +182,8 @@ int gpio_get_function(struct udevice *dev, int offset, const char **namep);
* Note this does not return GPIOF_UNUSED - it will always return the GPIO
* driver's view of a pin function, even if it is not correctly set up.
*
* TODO(sjg@chromium.org): This should use struct gpio_desc
*
* @dev: Device to check
* @offset: Offset of device GPIO to check
* @namep: If non-NULL, this is set to the nane given when the GPIO