From: Kai-Heng Feng Date: Thu, 23 Aug 2018 05:53:32 +0000 (+0000) Subject: drm/edid: Add 6 bpc quirk for SDC panel in Lenovo B50-80 X-Git-Tag: v4.9.127~21 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ee45a6792b26134b9b31f0048db3f5b99dc229d3;p=platform%2Fkernel%2Flinux-amlogic.git drm/edid: Add 6 bpc quirk for SDC panel in Lenovo B50-80 commit 25da75043f8690fd083878447c91f289dfb63b87 upstream. 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/1788308 Cc: # v4.8+ Signed-off-by: Kai-Heng Feng Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20180823055332.7723-1-kai.heng.feng@canonical.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 6b31e04..37ba5f5 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -110,6 +110,9 @@ static const struct edid_quirk { /* CPT panel of Asus UX303LA reports 8 bpc, but is a 6 bpc panel */ { "CPT", 0x17df, EDID_QUIRK_FORCE_6BPC }, + /* SDC panel of Lenovo B50-80 reports 8 bpc, but is a 6 bpc panel */ + { "SDC", 0x3652, EDID_QUIRK_FORCE_6BPC }, + /* Belinea 10 15 55 */ { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 }, { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },