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drm/amd/display: fix dpms_off issue when disabling bios mode

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[Why]
disable_vbios_mode_if_required() will set dpms_off to false during boot
when pixel clk dismatches with driver requires. This will cause extra
backlight on and off if OS call 2 times setmode.

[How]
Set dpms_off to true to keep power_off and let OS control backlight by
display's powerState.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Zhongwei <Zhongwei.Zhang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Zhongwei 2022-10-28 13:40:31 +08:00 • committed by Alex Deucher
parent 255ce8f7c1
commit 58e67bb3c1
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/dc/core/dc.c
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@ -1268,7 +1268,7 @@ static void disable_vbios_mode_if_required(
if (pix_clk_100hz != requested_pix_clk_100hz) {
dc->link_srv->set_dpms_off(pipe);
pipe->stream->dpms_off = false;
pipe->stream->dpms_off = true;
}
}
}