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Subject[PATCH] drm/i915: Force DPCD backlight mode for HP Spectre x360 Convertible 13t-aw100
Date
There's another OLED panel needs to use DPCD aux interface to control
backlight.

BugLink: https://bugs.launchpad.net/bugs/1860303
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
---
drivers/gpu/drm/drm_dp_helper.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index 8ba4531e808d..a0d4314663de 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -1301,6 +1301,8 @@ static const struct edid_quirk edid_quirk_list[] = {
* only supports DPCD backlight controls
*/
{ MFG(0x4c, 0x83), PROD_ID(0x41, 0x41), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) },
+ /* HP Spectre x360 Convertible 13t-aw100 */
+ { MFG(0x4c, 0x83), PROD_ID(0x42, 0x41), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) },
/*
* Some Dell CML 2020 systems have panels support both AUX and PWM
* backlight control, and some only support AUX backlight control. All
--
2.17.1
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