From: Kai-Heng Feng <kai.heng.feng@canonical.com>
To: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
mripard@kernel.org, David Airlie <airlied@linux.ie>,
Daniel Vetter <daniel@ffwll.ch>,
"Deucher, Alexander" <alexander.deucher@amd.com>
Cc: "open list:DRM DRIVERS" <dri-devel@lists.freedesktop.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] drm/i915: Force DPCD backlight mode for HP Spectre x360 Convertible 13t-aw100
Date: Tue, 7 Apr 2020 14:07:33 +0800 [thread overview]
Message-ID: <1F57CA05-3E23-4CA8-A138-6785906ED465@canonical.com> (raw)
In-Reply-To: <41FD4AD2-81F9-45E8-B5D6-9CC255D0581B@canonical.com>
> On Mar 27, 2020, at 19:03, Kai-Heng Feng <kai.heng.feng@canonical.com> wrote:
>
> Hi,
>
>> On Mar 23, 2020, at 13:35, Kai-Heng Feng <kai.heng.feng@canonical.com> wrote:
>>
>> 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>
>
> Would it be possible to review this?
> I'd like to send a similar quirk for a new panel, and I want to avoid causing any merge conflict.
Another gentle ping...
>
> Kai-Heng
>
>> ---
>> 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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next prev parent reply other threads:[~2020-04-07 8:10 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-23 5:35 [PATCH] drm/i915: Force DPCD backlight mode for HP Spectre x360 Convertible 13t-aw100 Kai-Heng Feng
2020-03-27 11:03 ` Kai-Heng Feng
2020-04-07 6:07 ` Kai-Heng Feng [this message]
2020-04-08 7:22 ` Jani Nikula
2020-10-07 7:01 ` Kai-Heng Feng
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