FAILED: Patch "drm/amd/display: Clear OPTC mem select on disable" failed to apply to 6.8-stable tree

The patch below does not apply to the 6.8-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 b4e05bb1dec53fe28c3c88425aded824498666e5 Mon Sep 17 00:00:00 2001
From: Ilya Bakoulin <[email protected]>
Date: Wed, 3 Jan 2024 09:42:04 -0500
Subject: [PATCH] drm/amd/display: Clear OPTC mem select on disable

[Why]
Not clearing the memory select bits prior to OPTC disable can cause DSC corruption issues when attempting to reuse a memory instance for another OPTC that enables ODM.

[How]
Clear the memory select bits prior to disabling an OPTC.

---
 drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.c | 3 +++
 drivers/gpu/drm/amd/display/dc/optc/dcn35/dcn35_optc.c | 3 +++
 2 files changed, 6 insertions(+)

index 1788eb29474b4..8234935433254 100644
@@ -173,6 +173,9 @@ static bool optc32_disable_crtc(struct timing_generator *optc)
 			OPTC_SEG3_SRC_SEL, 0xf,
 			OPTC_NUM_OF_INPUT_SEGMENT, 0);
 
+	REG_UPDATE(OPTC_MEMORY_CONFIG,
+			OPTC_MEM_SEL, 0);
+
 	/* disable otg request until end of the first line
 	 * in the vertical blank region
 	 */

index 3d6c1b2c2b4d6..5b15475088503 100644
@@ -145,6 +145,9 @@ static bool optc35_disable_crtc(struct timing_generator *optc)
 			OPTC_SEG3_SRC_SEL, 0xf,
 			OPTC_NUM_OF_INPUT_SEGMENT, 0);
 
+	REG_UPDATE(OPTC_MEMORY_CONFIG,
+			OPTC_MEM_SEL, 0);
+
 	/* disable otg request until end of the first line
 	 * in the vertical blank region
 	 */

2.43.0