> On Apr 8, 2020, at 15:23, Jani Nikula <jani.nik...@linux.intel.com> wrote:
> 
> On Tue, 07 Apr 2020, Kai-Heng Feng <kai.heng.f...@canonical.com> wrote:
>> There's another Samsung OLED panel needs to use DPCD aux interface to
>> control backlight.
> 
> Acked-by: Jani Nikula <jani.nik...@intel.com>

David, 

Can you please merge this patch? Thanks.

Kai-Heng

> 
>> 
>> Signed-off-by: Kai-Heng Feng <kai.heng.f...@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

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