dany/u-boot-megous
1
0
Fork 0
mirror of https://xff.cz/git/u-boot/ synced 2025-10-21 18:13:39 +02:00
Code Issues Packages Projects Releases Wiki Activity

gpio: Replace direction_input() and direction_output()

Browse Source 
The new update_flags() method is more flexible since it allows the
driver to see the full flags all at once. Use that in preference to these
two functions. Add comments to that effect.

Signed-off-by: Simon Glass <sjg@chromium.org>

Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
This commit is contained in:
Simon Glass
2021-02-04 21:22:04 -07:00
committed by Tom Rini
parent 7e0a96d559
commit ca1e1f57be
2 changed files with 31 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
include/asm-generic/gpio.h
View File

@@ -260,10 +260,32 @@ int gpio_xlate_offs_flags(struct udevice *dev, struct gpio_desc *desc,
struct dm_gpio_ops {
int (*request)(struct udevice *dev, unsigned offset, const char *label);
int (*rfree)(struct udevice *dev, unsigned int offset);
/**
* direction_input() - deprecated
*
* Equivalent to set_flags(...GPIOD_IS_IN)
*/
int (*direction_input)(struct udevice *dev, unsigned offset);
/**
* direction_output() - deprecated
*
* Equivalent to set_flags(...GPIOD_IS_OUT) with GPIOD_IS_OUT_ACTIVE
* also set if @value
*/
int (*direction_output)(struct udevice *dev, unsigned offset,
int value);
int (*get_value)(struct udevice *dev, unsigned offset);
/**
* set_value() - Sets the GPIO value of an output
*
* If the driver provides an @set_flags() method then that is used
* in preference to this, with GPIOD_IS_OUT_ACTIVE set according to
* @value.
*/
int (*set_value)(struct udevice *dev, unsigned offset, int value);
/**
* get_function() Get the GPIO function
@@ -320,7 +342,9 @@ struct dm_gpio_ops {
* uclass, so the driver always sees the value that should be set at the
* pin (1=high, 0=low).
*
* This method is optional.
* This method is required and should be implemented by new drivers. At
* some point, it will supersede direction_input() and
* direction_output(), which wil be removed.
*
* @dev: GPIO device
* @offset: GPIO offset within that device