Skip to contentSkip to conversation

FAILED: Patch "drm/amd/display: Add monitor patch for specific eDP" failed to apply to 5.10-stable tree

PATCH Sasha Levin 1 participant 1 message Mar 27, 2024

Subsystems (4)
lore
Share & tools
lore

Sasha Levin

author maintainer
#0 lore raw

The patch below does not apply to the 5.10-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 <[email protected]>.

Thanks,
Sasha

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

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

[WHY]
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.

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

---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 6 ++++++
 1 file changed, 6 insertions(+)
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c +6 -0
index b4696ec621c45..eaf8d9f482446 100644
@@ -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;
 		break;
+	/* 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;
 	default:
 		return;
 	}
Signature · 1 line
2.43.0