u-boot.git/test/dm/core.c, branch v2024.04

dm: core: Do not stop uclass iteration on error

2022-10-29T13:36:33Z

When probing a device fails NULL pointer is returned, and following devices in uclass list cannot be iterated. Skip to next device on error instead. With that the only condition under which these simple iteration functions return error is when the dm is not initialized at uclass_get time. This is not all that interesting, change return type to void. Fixes: 6494d708bf ("dm: Add base driver model support") Signed-off-by: Michal Suchanek Reviewed-by: Simon Glass

dm: treewide: Do not opencode uclass_probe_all()

2022-10-18T03:17:12Z

We already have a function for probing all devices of a specific class, use it. Signed-off-by: Michal Suchanek Reviewed-by: Simon Glass

dm: core: Add a way to collect memory usage

2022-06-28T02:09:52Z

Add a function for collecting the amount of memory used by driver model, including devices, uclasses and attached data and tags. This information can provide insights into how to reduce the memory required by driver model. Future work may look at execution speed also. Signed-off-by: Simon Glass

dm: core: Support accessing core tags

2022-06-28T02:09:52Z

At present tag numbers are only allocated for non-core data, meaning that the 'core' data, like priv and plat, are accessed through dedicated functions. For debugging and consistency it is convenient to use tags for this 'core' data too. Add support for this, with new tag numbers and functions to access the pointer and size for each. Update one of the test drivers so that the uclass-private data can be tested here. There is some code duplication with functions like device_alloc_priv() but this is not addressed for now. At some point, some rationalisation may help to reduce code size, but more thought it needed on that. Signed-off-by: Simon Glass

dm: core: Allow finding a uclass device by partial name

2022-04-25T14:00:03Z

In some cases two devices are related and the only way to tell is to check that the names partially patch. Add a way to check this without needing to create a new string for the comparison. Fix the comment for device_find_child_by_namelen() while we are here. Signed-off-by: Simon Glass

dm: core: Rename and fix uclass_get_by_name_len()

2022-04-25T14:00:03Z

It seems that namelen is more common in U-Boot. Rename this function to fit in better. Also fix a bug where it breaks the operation of uclass_get_by_name() and add a test. Signed-off-by: Simon Glass Reported-by: Patrick Delaunay Reported-by: Tim Harvey

doc: replace @return by Return:

2022-01-19T17:11:34Z

Sphinx expects Return: and not @return to indicate a return value. find . -name '*.c' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; find . -name '*.h' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; Signed-off-by: Heinrich Schuchardt

dm: core: Allow getting some basic stats

2021-12-23T15:24:40Z

Add a function that returns some basic stats about driver model. For now we only have two. Signed-off-by: Simon Glass

dm: core: Don't allow uclass use before ready

2021-08-08T17:27:27Z

At present it is possible to call uclass_get() before driver model is inited. In fact this happens on x86 boards which use Intel FSPv1, since mrccache_get_region() tries to get the SPI flash device very early during init. This has always been undefined behaviour. Previously it generally worked, i.e. returned an error code without crashing, because gd->uclass_root_s is zeroed and the uclass can be added despite driver model not being ready, due to the way lists are implemented. With the change to use a gd->uclass_root pointer, this no-longer works. For example, it causes a hang on minnowmax. Fix this by adding a check that driver model is ready when uclass_get() is called. This function is called in the process of locating any device, so it is a good place to add the check. This fixes booting on minnowmax. Signed-off-by: Simon Glass Fixes: 8a715530bb1 ("dm: core: Allow the uclass list to move")

dm: test: Add test case to check node name ignoring unit address

2021-07-27T05:26:53Z

Add test to check node name ignoring unit address. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Lokesh Vutla Reviewed-by: Simon Glass Link: https://lore.kernel.org/r/20210721155849.20994-3-kishon@ti.com