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authorAaron Ma <aaron.ma@canonical.com>2020-10-09 11:57:50 +0300
committerLyude Paul <lyude@redhat.com>2020-10-13 02:37:16 +0300
commit055f8458d95a38c20e8360634255f684378179eb (patch)
tree4fc3d50d47eaf832a01463f302591c45c2c77223 /drivers/gpu/drm/drm_dp_helper.c
parent98e497e203a58b6419e20a8f820c8fd8c50e8da7 (diff)
downloadlinux-055f8458d95a38c20e8360634255f684378179eb.tar.xz
drm/i915: Force DPCD backlight mode for BOE 2270 panel
BOE 2270 panel failed to control backlight brightness. Add it in edid quirks to force using DPCD backlight control. Then the brightness can be controlled. Signed-off-by: Aaron Ma <aaron.ma@canonical.com> Signed-off-by: Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201009085750.88490-2-aaron.ma@canonical.com
Diffstat (limited to 'drivers/gpu/drm/drm_dp_helper.c')
-rw-r--r--drivers/gpu/drm/drm_dp_helper.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index 79732402336d..14ddf28ecac0 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -1954,6 +1954,7 @@ static const struct edid_quirk edid_quirk_list[] = {
{ MFG(0x4d, 0x10), PROD_ID(0xc7, 0x14), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) },
{ MFG(0x4d, 0x10), PROD_ID(0xe6, 0x14), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) },
{ MFG(0x4c, 0x83), PROD_ID(0x47, 0x41), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) },
+ { MFG(0x09, 0xe5), PROD_ID(0xde, 0x08), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) },
};
#undef MFG