u-boot.git/drivers/core, branch v2021.04-rc2

Merge branch '2021-02-02-drop-asm_global_data-when-unused'

2021-02-15T15:16:45+00:00

- Merge the patch to take  out of

dm: core: Add late driver remove option

2021-02-03T10:38:41+00:00

Add another flag to the DM core which could be assigned to drivers and
which makes those drivers call their remove callbacks last, just before
booting OS and after all the other drivers finished with their remove
callbacks. This is necessary for things like clock drivers, where the
other drivers might depend on the clock driver in their remove callbacks.
Prime example is the mmc subsystem, which can reconfigure a card from HS
mode to slower modes in the remove callback and for that it needs to
reconfigure the controller clock.

Signed-off-by: Marek Vasut 
Signed-off-by: Simon Glass

dm: core: Avoid partially removing devices

2021-02-03T10:38:41+00:00

At present if device_remove() decides that the device should not actually
be removed, it still calls the uclass pre_remove() method and powers the
device down.

Signed-off-by: Simon Glass

dm: core: Remove children before advising uclass

2021-02-03T10:38:41+00:00

At present the uclass pre-remove method is called before the children are
removed. But the children may refused to be removed, in whch case the
uclass is in a tricky situation. At present we handle this by calling
the uclass' post_probe() method. But it seems better to avoid doing
anything with the uclass in this case.

Switch the ordering so that we make sure the children can be removed
before advising the uclass.

Signed-off-by: Simon Glass

dm: Rename DM_FLAG_REMOVE_WITH_PD_ON

2021-02-03T10:38:41+00:00

This flag has the word 'REMOVE' in it which means it conflicts with
the DM_REMOVE flags. Rename it to DM_FLAG_LEAVE_PD_ON which seems to
indicate its purpose well enough.

Signed-off-by: Simon Glass

common: Drop asm/global_data.h from common header

2021-02-02T20:33:42+00:00

Move this out of the common header and include it only where needed.  In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly.   Finally, we have a few
cases where we did not need to include  at all, so
remove that include.

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

dm: core: Update ofnode_read_fmap_entry() to read hashes

2021-01-30T21:25:42+00:00

At present this function uses the old format for reading hashes. Add
support for the current format.

Add a test while we are here.

Signed-off-by: Simon Glass

dm: core: Add a comment about pinctrl_select_state()

2021-01-30T21:25:42+00:00

The use of pinctrl in the core of driver model is useful but can provoke
some strange behaviour. Add a comment to aid debugging.

Signed-off-by: Simon Glass

dm: core: add function uclass_probe_all() to probe all devices

2021-01-16T19:49:09+00:00

Support a common method to probe all devices associated with uclass.

This includes data structures and code for finding the first device and
looping for remaining devices associated with uclasses (groups of devices
with the same purpose, e.g. all SERIAL ports will be in the same uclass).

An example is SBSA compliant PL011 UART IP, where firmware does the serial
port initialization and prepare uart device to let the kernel use it for
sending and reveiving the characters.SERIAL uclass will use this function
to initialize PL011 UART ports.

The feature is enabled with CONFIG_DM.

Signed-off-by: Vabhav Sharma 
Reviewed-by: Stefan Roese 
Reviewed-by: Simon Glass 
Reviewed-by: Sean Anderson

dm: core: add a function to decode display timings

2021-01-12T05:28:05+00:00

The patch adds a function to get display timings from the device tree
node attached to the device.

Signed-off-by: Dario Binacchi 
Reviewed-by: Simon Glass