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authorCamille Cho <Camille.Cho@amd.com>2021-07-08 18:28:37 +0800
committerAlex Deucher <alexander.deucher@amd.com>2021-07-21 14:24:38 -0400
commit2d73eabe2984a435737498ab39bb1500a9ffe9a9 (patch)
tree7e9a8cc56634d2f3ff72127706543218811f744c /drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
parentdrm/amd/display: Update bounding box for DCN3.1 (diff)
downloadlinux-dev-2d73eabe2984a435737498ab39bb1500a9ffe9a9.tar.xz
linux-dev-2d73eabe2984a435737498ab39bb1500a9ffe9a9.zip
drm/amd/display: Only set default brightness for OLED
[Why] We used to unconditionally set backlight path as AUX for panels capable of backlight adjustment via DPCD in set default brightness. [How] This should be limited to OLED panel only since we control backlight via PWM path for SDR mode in LCD HDR panel. Reviewed-by: Krunoslav Kovac <krunoslav.kovac@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Camille Cho <Camille.Cho@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to '')
-rw-r--r--drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index 6da226bf11d5..12066f5a53fc 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -4914,9 +4914,7 @@ bool dc_link_set_default_brightness_aux(struct dc_link *link)
{
uint32_t default_backlight;
- if (link &&
- (link->dpcd_sink_ext_caps.bits.hdr_aux_backlight_control == 1 ||
- link->dpcd_sink_ext_caps.bits.sdr_aux_backlight_control == 1)) {
+ if (link && link->dpcd_sink_ext_caps.bits.oled == 1) {
if (!dc_link_read_default_bl_aux(link, &default_backlight))
default_backlight = 150000;
// if < 5 nits or > 5000, it might be wrong readback