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dm: test: Add GPIO open drain tests

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Add some tests for the new open drain setting feature of the GPIO
uclass, and extend the capabilities of the sandbox GPIO driver
accordingly.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
mario.six@gdsys.cc
2016-05-25 15:15:23 +02:00
committed by York Sun
parent 51781783c5
commit 743268f514
3 changed files with 62 additions and 0 deletions
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20
arch/sandbox/include/asm/gpio.h
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@@ -40,6 +40,26 @@ int sandbox_gpio_get_value(struct udevice *dev, unsigned int offset);
*/
int sandbox_gpio_set_value(struct udevice *dev, unsigned int offset, int value);
/**
* Set or reset the simulated open drain mode of a GPIO (used only in sandbox
* test code)
*
* @param gp GPIO number
* @param value value to set (0 for enabled open drain mode, non-zero for
* disabled)
* @return -1 on error, 0 if ok
*/
int sandbox_gpio_set_open_drain(struct udevice *dev, unsigned offset, int value);
/**
* Return the state of the simulated open drain mode of a GPIO (used only in
* sandbox test code)
*
* @param gp GPIO number
* @return -1 on error, 0 if GPIO is input, >0 if output
*/
int sandbox_gpio_get_open_drain(struct udevice *dev, unsigned offset);
/**
* Return the simulated direction of a GPIO (used only in sandbox test code)
*