u-boot.git/include/blk.h, branch v2023.04

dm: blk: Tidy up obtaining a block device from its parent

2022-11-07T23:24:30+00:00

This function now finds its block-device child by looking for a child
device of the correct uclass (UCLASS_BLK). It cannot produce a device of
any other type, so drop the superfluous check.

Provide a version which does not probe the device, since that is often
needed when setting up the device's platdata.

Also fix up the function's comment.

Signed-off-by: Simon Glass

dm: test: Clear the block cache after running a test

2022-11-07T23:24:30+00:00

Some tests access data in block devices and so cause the cache to fill
up. This results in memory being allocated.

Some tests check the malloc usage at the beginning and then again at the
end, to ensure there is no memory leak caused by the test. The block cache
makes this difficult, since the any test may cause entries to be allocated
or even freed, if the cache becomes full.

It is simpler to clear the block cache after each test. This ensures that
it will not introduce noise in tests which check malloc usage.

Add the logic to clear the cache, using the existing blkcache_invalidate()
function. Drop the duplicate code at the same time.

Signed-off-by: Simon Glass

dm: blk: Add udevice functions

2022-10-31T15:02:44+00:00

At present we have functions called blk_dread(), etc., which take a
struct blk_desc * to refer to the block device. Add some functions which
use udevice instead, since this is more in keeping with how driver model
is supposed to work.

Update one of the tests to use this.

Note that it would be nice to update the functions in disk-uclass.c to use
these new functions. However they are not quite the same. For example,
disk_blk_read() adds the partition offset to 'start' when calling the
cache read/fill functions, but does not with part_blk_read(), which does
the addition itself. So as designed the code is duplicated.

Signed-off-by: Simon Glass

blk: fix a couple of trivial documentation typos

2022-10-22T01:37:47+00:00

In some cases, the param variable is wrong, and in other cases we have
undocumented arguments.

Fix the docs.

Signed-off-by: Mattijs Korpershoek 
Reviewed-by: Simon Glass

blk: Rename if_type to uclass_id

2022-09-25T14:30:05+00:00

Use the word 'uclass' instead of 'if_type' to complete the conversion.

Signed-off-by: Simon Glass

blk: Drop if_type

2022-09-16T15:05:16+00:00

Use the uclass ID instead.

Signed-off-by: Simon Glass 
Acked-by: Heinrich Schuchardt

blk: Switch over to using uclass IDs

2022-09-16T15:05:16+00:00

We currently have an if_type (interface type) and a uclass id. These are
closely related and we don't need to have both.

Drop the if_type values and use the uclass ones instead.

Maintain the existing, subtle, one-way conversion between UCLASS_USB and
UCLASS_MASS_STORAGE for now, and add a comment.

Signed-off-by: Simon Glass

blk: Drop IF_TYPE_SD

2022-09-16T15:05:16+00:00

This is not really needed since it does the same things as MMC. Drop it.

Signed-off-by: Simon Glass

blk: Drop IF_TYPE_ATAPI

2022-09-16T15:05:16+00:00

This is not really needed since it does the same things as IDE. Drop it.

Signed-off-by: Simon Glass

blk: Drop IF_TYPE_DOC

2022-09-16T15:05:16+00:00

This doesn't seem to be used for anything and it isn't clear what it is.
It dates from the first U-Boot commit.

Drop it.

Signed-off-by: Simon Glass