linux-kernel - Re: [PATCH] drm/edid: Add 6 bpc quirk for SDC panel in Lenovo G50

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Date:   Tue, 8 Oct 2019 16:24:08 +0800
From:   Kai-Heng Feng <kai.heng.feng@...onical.com>
To:     maarten.lankhorst@...ux.intel.com, maxime.ripard@...tlin.com,
        sean@...rly.run, airlied@...ux.ie, daniel@...ll.ch
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH] drm/edid: Add 6 bpc quirk for SDC panel in Lenovo G50



> On Jun 6, 2019, at 16:04, Kai-Heng Feng <kai.heng.feng@...onical.com> wrote:
> 
> Hi,
> 
> at 11:30, Kai-Heng Feng <kai.heng.feng@...onical.com> wrote:
> 
>> Another panel that needs 6BPC quirk.
> 
> Please include this patch if possible.

Another gentle ping.

> 
> Kai-Heng
> 
>> 
>> BugLink: https://bugs.launchpad.net/bugs/1819968
>> Cc: <stable@...r.kernel.org> # v4.8+
>> Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
>> ---
>> drivers/gpu/drm/drm_edid.c | 3 +++
>> 1 file changed, 3 insertions(+)
>> 
>> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
>> index 990b1909f9d7..1cb4d0052efe 100644
>> --- a/drivers/gpu/drm/drm_edid.c
>> +++ b/drivers/gpu/drm/drm_edid.c
>> @@ -166,6 +166,9 @@ static const struct edid_quirk {
>> 	/* Medion MD 30217 PG */
>> 	{ "MED", 0x7b8, EDID_QUIRK_PREFER_LARGE_75 },
>> 
>> +	/* Lenovo G50 */
>> +	{ "SDC", 18514, EDID_QUIRK_FORCE_6BPC },
>> +
>> 	/* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */
>> 	{ "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC },
>> 
>> -- 
>> 2.17.1
> 
>