u-boot.git/drivers/core, branch v2025.04

Revert "dm: core: Simplify dm_probe_devices()"

2025-03-04T14:22:10+00:00

Unfortunately this change was not safe as some devices are bound before
relocation, but we don't want to probe them.

It causes 'raise: Signal # 8 caught' on jerry.

Move the bootstage timer to after autoprobe in initf_dm() since the
trace test does not tolerate any variance.

This reverts commit 21dd873572a01d74bfdfceb7a30b056f8ccba187.

Signed-off-by: Simon Glass

Merge patch series "upl: Prerequite patches for updated spec"

2025-01-22T23:08:47+00:00

Simon Glass  says:

The current UPL spec[1] has been tidied up and improved over the last
year, since U-Boot's original UPL support was written.

This series includes some prerequisite patches needed for the real UPL
patches. It is split from [2]

[1] https://github.com/UniversalPayload/spec/tree/3f1450d
[2] https://patchwork.ozlabs.org/project/uboot/list/?series=438574&state=*

Link: https://lore.kernel.org/r/20250111000029.245022-1-sjg@chromium.org

dm: core: Provide ofnode_find_subnode_unit()

2025-01-22T23:08:24+00:00

The ofnode_find_subnode() function currently processes things two
different ways, so the treatment of unit addresses differs depending on
whether OF_LIVE is enabled or not.

Add a new version which uses the ofnode API and add a test to check that
unit addresses can be matched correctly. Leave the old function in place
for the !OF_LIVE case, to avoid a code-size increase, e.g. on
firefly-rk3288

Signed-off-by: Simon Glass

dm: core: Provide ofnode_name_eq_unit() to accept a unit address

2025-01-22T23:08:24+00:00

When a unit-address is provided, use it to match against the node
name.

Since this increases code size, put it into a separate function.

Signed-off-by: Simon Glass

ofnode: Indicate when out of space in a few places

2025-01-22T21:58:03+00:00

Update ofnode_add_subnode() and ofnode_add_prop() to return a suitable
error when space is exhausted in the FDT. This makes it easier to see
what is going wrong.

Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini

ofnode: Use 4K for a default tree-size

2025-01-22T21:58:03+00:00

At some point it would be nice to have the ofnode API automatically
expand the tree as required, to accommodate new nodes. For now, expand
the default size so that UPL can be supported.

Signed-off-by: Simon Glass

common: Move autoprobe out to board init

2025-01-14T17:42:51+00:00

Rather than doing autoprobe within the driver model code, move it out to
the board-init code. This makes it clear that it is a separate step from
binding devices.

For now this is always done twice, before and after relocation, but we
should discuss whether it might be possible to drop the post-relocation
probe.

For boards with SPL, the autoprobe is still done there as well.

Note that with this change, autoprobe happens after the
EVT_DM_POST_INIT_R/F events are sent, rather than before.

Link: https://lore.kernel.org/u-boot/20240626235717.272219-1-marex@denx.de/

Signed-off-by: Simon Glass

dm: core: Simplify dm_probe_devices()

2025-01-14T17:42:51+00:00

There is no point in checking the pre_reloc flag, since devices not
marked as pre-reloc will not have been bound, so won't exist yet.

There doesn't seem to be any point in checking if the device has a
valid devicetree node either, so drop that too.

Signed-off-by: Simon Glass

Merge patch series "led: update LED boot/activity to new property implementation"

2024-12-06T19:00:52+00:00

Christian Marangi  says:

This series is split in 2 part.

While adapting the LED boot and activity code to the new property
accepted by Rob in dt-schema repository, a big BUG was discovered.

The reason wasn't clear at start and took me some days to figure it
out.

This was triggered by adding a new phandle in the test.dts to
introduce test for the new OPs.

This single addition caused the sandbox CI test to fail in the
dm_test_ofnode_phandle_ot test.

This doesn't make sense as reverting the change made the CI test
to correctly finish. Also moving the uboot node down
after the first phandle (in test.dts the gpio one) also made
the CI test to correctly finish.

A little bit of searching and debugging made me realize the
parse phandle OPs didn't support other.dts at all and they
were still referencing phandle index from test.dts.
(more info in the related commit)

In short the test was broken all along and was working by
pure luck. The first 4 patch address and fix the problem for good.

The other 4 patch expand and address the property change for
LED boot/activity.

Posting in a single series as changes are trivial and just
to speedup review process. (and also because the second
part depends on the first)

All CI tested with azure pipeline.

Link: https://lore.kernel.org/r/20241110115054.2555-1-ansuelsmth@gmail.com

dm: core: implement phandle ofnode_options helper

2024-12-06T19:00:41+00:00

Implement ofnode_options phandle helper to get an ofnode from a phandle
option in /options/u-boot.

This helper can be useful since new DT yaml usually require to link a
phandle of a node instead of referencing it by name or other indirect
way.

Signed-off-by: Christian Marangi 
Reviewed-by: Simon Glass