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

[Simon Glass]

Hi Marek,

On Mon, 12 Oct 2020 at 02:31, Marek Vasut <marek.vasut at gmail.com> wrote:
>
> 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.

Did you see my comments on the previous version of the patch? These
need to be addressed.

Regards,
Simon