[PATCH] Revert "dm: core: device: switch off power domain after device removal"

Anatolij Gustschin agust at denx.de
Mon Feb 17 12:53:36 CET 2020

On Mon, 17 Feb 2020 10:10:36 +0100
Neil Armstrong narmstrong at baylibre.com wrote:

> This commit breaks Linux boot on Amlogic libretech-cc, libretech-ac, sei510,
> sei610 board by automatically disabling the power domain after device removal.
> This because the power domain associated to the video driver must be kept
> enabled for linux to boot.
> The only way is to use the introduced flag DM_FLAG_DEFAULT_PD_CTRL_OFF, which
> removes automatic handling of power domain.
> This flag is not a complete solution since it will force reverting to manually
> enable the power domain from the driver probe.
> Instead a flag to keep the power domain enabled after removal should be
> introduced.
> In the meantime revert this commit until a proper solution is found.
> This reverts commit 52edfed65de967a86983a55c51ba0727090efc43.
> Signed-off-by: Neil Armstrong <narmstrong at baylibre.com>
> ---
> Hi Simon, Tom,
> This revert is the simplest fix to make the boards boot again on v2020.04,
> the goal is to make this behavior happen again with a proper flag to keep the
> power domain enabled on specific drivers.
> I can push it on my next PR on my branch, is it ok ?

Please test if these two patches fix the problem:


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