FAILED: Patch "drm/amd/display: Add monitor patch for specific eDP" failed to apply to 5.4-stable tree

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.


------------------ original commit in Linus's tree ------------------

>From 21afc872fbc29cd68cfde816d1df4d55848c3f61 Mon Sep 17 00:00:00 2001
From: Ivan Lipski <ivlipski@xxxxxxx>
Date: Fri, 1 Dec 2023 06:25:16 -0700
Subject: [PATCH] drm/amd/display: Add monitor patch for specific eDP

Some eDP panels's ext caps don't write initial value cause the value of
dpcd_addr(0x317) is random.  It means that sometimes the eDP will
clarify it is OLED, miniLED...etc cause the backlight control interface
is incorrect.

Add a new panel patch to remove sink ext caps(HDR,OLED...etc)

Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Reviewed-by: Sun peng Li <>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@xxxxxxx>
Signed-off-by: Ivan Lipski <ivlipski@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
index b4696ec621c45..eaf8d9f482446 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
@@ -64,6 +64,12 @@ static void apply_edid_quirks(struct edid *edid, struct dc_edid_caps *edid_caps)
 		DRM_DEBUG_DRIVER("Disabling FAMS on monitor with panel id %X\n", panel_id);
 		edid_caps->panel_patch.disable_fams = true;
+	/* Workaround for some monitors that do not clear DPCD 0x317 if FreeSync is unsupported */
+	case drm_edid_encode_panel_id('A', 'U', 'O', 0xA7AB):
+	case drm_edid_encode_panel_id('A', 'U', 'O', 0xE69B):
+		DRM_DEBUG_DRIVER("Clearing DPCD 0x317 on monitor with panel id %X\n", panel_id);
+		edid_caps->panel_patch.remove_sink_ext_caps = true;
+		break;

[Index of Archives]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux