[U-Boot] [PATCH v2 1/2] dm: core: device: switch off power domain after device removal

[Simon Glass]

Hi Anatolij,

On Sun, 14 Jul 2019 at 20:59, Peng Fan <peng.fan at nxp.com> wrote:
>
> > Subject: [PATCH v2 1/2] dm: core: device: switch off power domain after
> > device removal
> >
> > The power domain associated with a device is enabled when probing, but
> > currently the domain remains enabled when the device is removed.
> > Some boards started to disable power domains for selected devices via
> > custom board_quiesce_devices(), but it doesn't work in many cases, i. e.
> > because devices still can be accessed later in
> > .remove() callback on behalf of dm_remove_devices_flags().
> >
> > Utilize the DM core to power off the device power domain, but add a device
> > flag to be able to selectively let the power domain enabled after device
> > removal. This might be required for devices that must remain enabled when
> > booting OS, i. e. serial console for debug output, etc.
> >
> > Signed-off-by: Anatolij Gustschin <agust at denx.de>
> > ---
> > Changes in v2:
> >  - use CONFIG_IS_ENABLED(POWER_DOMAIN) to reduce code size
> >
> >  drivers/core/device-remove.c | 9 +++++++++
> >  include/dm/device.h          | 6 ++++++
> >  2 files changed, 15 insertions(+)

Unfortunately this causes a test failure (make qcheck). Can you please
take a look?

Regards,
Simon