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| author | Stefan Wahren <wahrenst@gmx.net> | 2024-08-21 23:40:45 +0200 |
|---|---|---|
| committer | Maíra Canal <mcanal@igalia.com> | 2024-08-22 07:57:44 -0300 |
| commit | f1a54e860b1bc8d824925b5a77f510913880e8d6 (patch) | |
| tree | 18ee4f97ec419ecedd1afc4276d0b774fe5bebca /drivers/platform/surface/aggregator/controller.c | |
| parent | 5e9c0d1c5ea355679f5b2a57b0c1b5932d78719d (diff) | |
drm/vc4: hdmi: Handle error case of pm_runtime_resume_and_get
The commit 0f5251339eda ("drm/vc4: hdmi: Make sure the controller is
powered in detect") introduced the necessary power management handling
to avoid register access while controller is powered down.
Unfortunately it just print a warning if pm_runtime_resume_and_get()
fails and proceed anyway.
This could happen during suspend to idle. So we must assume it is unsafe
to access the HDMI register. So bail out properly.
Fixes: 0f5251339eda ("drm/vc4: hdmi: Make sure the controller is powered in detect")
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240821214052.6800-3-wahrenst@gmx.net
Diffstat (limited to 'drivers/platform/surface/aggregator/controller.c')
0 files changed, 0 insertions, 0 deletions