tree 9c11b27f24155ddfad86ea477046d4b05c2c50c2
parent 0cf795a8024f36e2aaea3db8ab8b4d3805dc541c
author Anatolij Gustschin <agust@denx.de> 1569572295 +0530
committer Simon Glass <sjg@chromium.org> 1571150403 -0600

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@denx.de>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>