There's another Samsung OLED panel needs to use DPCD aux interface to control backlight.
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 c6fbe6e6bc9d..d0cfee3b7a65 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -1299,6 +1299,8 @@ 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 CML 2020 system */ + { MFG(0x4c, 0x83), PROD_ID(0x45, 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
On Tue, 07 Apr 2020, Kai-Heng Feng kai.heng.feng@canonical.com wrote:
There's another Samsung OLED panel needs to use DPCD aux interface to control backlight.
Acked-by: Jani Nikula jani.nikula@intel.com
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 c6fbe6e6bc9d..d0cfee3b7a65 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -1299,6 +1299,8 @@ 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 CML 2020 system */
- { MFG(0x4c, 0x83), PROD_ID(0x45, 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
On Apr 8, 2020, at 15:23, Jani Nikula jani.nikula@linux.intel.com wrote:
On Tue, 07 Apr 2020, Kai-Heng Feng kai.heng.feng@canonical.com wrote:
There's another Samsung OLED panel needs to use DPCD aux interface to control backlight.
Acked-by: Jani Nikula jani.nikula@intel.com
David,
Can you please merge this patch? Thanks.
Kai-Heng
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 c6fbe6e6bc9d..d0cfee3b7a65 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -1299,6 +1299,8 @@ 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 CML 2020 system */
- { MFG(0x4c, 0x83), PROD_ID(0x45, 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
-- Jani Nikula, Intel Open Source Graphics Center
dri-devel@lists.freedesktop.org
-
Jani Nikula -
Kai-Heng Feng