This is a note to let you know that I've just added the patch titled
drm/edid: Add 6 bpc quirk for BOE panel in HP Pavilion 15-n233sl
to the 4.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-edid-add-6-bpc-quirk-for-boe-panel-in-hp-pavilion-15-n233sl.patch
and it can be found in the queue-4.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0711a43b6d84ff9189adfbf83c8bbf56eef794bf Mon Sep 17 00:00:00 2001
From: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
Date: Tue, 2 Oct 2018 23:29:11 +0800
Subject: drm/edid: Add 6 bpc quirk for BOE panel in HP Pavilion 15-n233sl
From: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
commit 0711a43b6d84ff9189adfbf83c8bbf56eef794bf upstream.
There's another panel that reports "DFP 1.x compliant TMDS" but it
supports 6bpc instead of 8 bpc.
Apply 6 bpc quirk for the panel to fix it.
BugLink: https://bugs.launchpad.net/bugs/1794387
Cc: <stable@xxxxxxxxxxxxxxx> # v4.8+
Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20181002152911.4370-1-kai.heng.feng@xxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_edid.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -113,6 +113,9 @@ static const struct edid_quirk {
/* AEO model 0 reports 8 bpc, but is a 6 bpc panel */
{ "AEO", 0, EDID_QUIRK_FORCE_6BPC },
+ /* BOE model on HP Pavilion 15-n233sl reports 8 bpc, but is a 6 bpc panel */
+ { "BOE", 0x78b, EDID_QUIRK_FORCE_6BPC },
+
/* CPT panel of Asus UX303LA reports 8 bpc, but is a 6 bpc panel */
{ "CPT", 0x17df, EDID_QUIRK_FORCE_6BPC },
Patches currently in stable-queue which might be from kai.heng.feng@xxxxxxxxxxxxx are
queue-4.18/drm-edid-add-6-bpc-quirk-for-boe-panel-in-hp-pavilion-15-n233sl.patch
