soc: mediatek: Check if power domains can be powered on at boot time

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[ Upstream commit 4007844b05 ]

In the error case, where a power domain cannot be powered on
successfully at boot time (in mtk_register_power_domains),
pm_genpd_init would still be called with is_off=false, and the
system would later try to disable the power domain again, triggering
warnings as disabled clocks are disabled again (and other potential
issues).

Also print a warning splat in that case, as this should never
happen.

Fixes: c84e358718 ("soc: Mediatek: Add SCPSYS power domain driver")
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Link: https://lore.kernel.org/r/20200928113107.v2.1.I5e6f8c262031d0451fe7241b744f4f3111c1ce71@changeid
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Nicolas Boichat 2020-09-28 11:31:35 +08:00 • committed by Greg Kroah-Hartman

parent de37cfd120

commit a2eaddba03

1 changed files with 3 additions and 2 deletions

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drivers/soc/mediatek/mtk-scpsys.c

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