[PATCH 1/2] dm: core: Add late driver remove option

[Marek Vasut]

On 10/12/20 5:35 AM, Simon Glass wrote:
> Hi Marek,
> 
> On Sun, 11 Oct 2020 at 10:03, Marek Vasut <marek.vasut at gmail.com> wrote:
>>
>> 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.

[...]

>>  arch/arm/lib/bootm.c            |  1 +
>>  board/Marvell/octeontx2/board.c |  4 ++--
>>  drivers/core/device-remove.c    | 11 ++++++++---
>>  drivers/core/root.c             |  2 ++
>>  drivers/core/uclass.c           | 32 +++++++++++++++++++++++++-------
>>  include/dm/device.h             |  4 ++++
>>  include/dm/uclass-internal.h    |  3 ++-
>>  test/dm/core.c                  | 21 ++++++++++++---------
>>  test/dm/test-main.c             | 30 +++++++++++++++++-------------
>>  9 files changed, 73 insertions(+), 35 deletions(-)
> 
> I remember seeing a similar patch before. Do you have a change log?

Nothing changed since except for the octeon fix, I still require this
patch in to correctly stop SD/MMC controller and then the clock before
booting Linux.