starfive-tech/u-boot.git/test/dm/gpio.c, branch master

gpio: Add a way to read 3-way strapping pins

2021-03-03T20:40:47+00:00

Using the internal vs. external pull resistors it is possible to get 27 different combinations from 3 strapping pins. Add an implementation of this. This involves updating the sandbox GPIO driver to model external and (weaker) internal pull resistors. The get_value() method now takes account of what is driving a pin: sandbox: GPIOD_EXT_DRIVEN - in which case GPIO_EXT_HIGH provides the value outside source - in which case GPIO_EXT_PULL_UP/DOWN indicates the external state and we work the final state using those flags and the internal GPIOD_PULL_UP/DOWN flags Of course the outside source does not really exist in sandbox. We are just modelling it for test purpose. Signed-off-by: Simon Glass

dm: gpio: Add a way to update flags

2021-03-03T20:40:10+00:00

It is convenient to be able to adjust some of the flags for a GPIO while leaving others alone. Add a function for this. Update dm_gpio_set_dir_flags() to make use of this. Also update dm_gpio_set_value() to use this also, since this allows the open-drain / open-source features to be implemented directly in the driver, rather than using the uclass workaround. Update the sandbox tests accordingly. This involves a lot of changes to dm_test_gpio_opendrain_opensource() since we no-longer have the direciion being reported differently depending on the open drain/open source flags. Also update the STM32 drivers to let the uclass handle the active low/high logic. Drop the GPIOD_FLAGS_OUTPUT() macro which is no-longer used. Signed-off-by: Simon Glass Tested-by: Kory Maincent Reviewed-by: Patrick Delaunay Tested-by: Patrick Delaunay Reviewed-by: Patrick Delaunay Tested-by: Patrick Delaunay

gpio: sandbox: Rename GPIO dir_flags to flags

2021-03-03T20:38:58+00:00

Adjust the terminology in this driver to reflect that fact that all flags are handled, not just direction flags. Create a new access function to get the full GPIO state, not just the direction flags. Drop the static invalid_dir_flags since we can rely on a segfault if something is wrong. Signed-off-by: Simon Glass Reviewed-by: Patrick Delaunay

gpio: Rename dm_gpio_get_dir_flags() to dm_gpio_get_flags()

2021-03-03T19:51:06+00:00

This function can be used to get any flags, not just direction flags. Rename it to avoid confusion. Signed-off-by: Simon Glass Reviewed-by: Patrick Delaunay Reviewed-by: Pratyush Yadav

dm: gpio: Rename set_dir_flags() method to update_flags()

2021-03-03T19:51:06+00:00

The current method is a misnomer since it is also used (e.g. by stm32) to update pull settings and open source/open drain. Rename it and expand the documentation to cover a few more details. Signed-off-by: Simon Glass Reviewed-by: Pratyush Yadav Reviewed-by: Patrick Delaunay

dm: treewide: Rename 'platdata' variables to just 'plat'

2020-12-13T23:51:08+00:00

We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass

test: gpio: Add tests for the managed API

2020-09-30T15:55:22+00:00

Add a test to verify that GPIOs can be acquired/released using the managed API. Also check that the GPIOs are released when the consumer device is removed. Signed-off-by: Jean-Jacques Hiblot Reviewed-by: Simon Glass Signed-off-by: Pratyush Yadav

dm: Rename DM test flags to make them more generic

2020-08-08T02:31:32+00:00

The test flags used by driver model are currently not available to other tests. Rather than creating two sets of flags, make these flags generic by changing the DM_ prefix to UT_ and moving them to the test.h header. This will allow adding other test flags without confusion. Signed-off-by: Simon Glass

dm: core: Drop header files from dm/test.h

2020-08-04T02:19:54+00:00

These header file should not be included in other header files. Remove them and add to each individual file. Add test/test.h to test/ui.h since that is a reasonable place. Signed-off-by: Simon Glass

sandbox, test: change hog gpio

2020-07-29T01:30:39+00:00

Since commit 9ba84329dc45 ("sandbox, test: add test for GPIO_HOG function"), the gpio_a 0,1,2 and 3 are used by hog in test.dts. But 2 leds 'sandbox:red' and 'sandbox:green' are using gpio_a 0 and 1. As hog always request his gpios, the led command on both led is broken: => led sandbox:red LED 'sandbox:red' not found (err=-16) The gpio is already requested by hog, so it can't be enabled for led 'sandbox:red'. This commit change the gpio used by hog to 10, 11, 12 and 13, so the led command could be used again with 'sandbox:red' and 'sandbox:green'. Signed-off-by: Philippe Reynes Reviewed-by: Simon Glass Reviewed-by: Heiko Schocher