From 85ca6e85303c10019710f31d4abedafab7994d68 Mon Sep 17 00:00:00 2001
From: Ilya Bakoulin <ilya.bakoulin@amd.com>
Date: Fri, 6 Oct 2023 15:57:28 -0400
Subject: [PATCH] drm/amd/display: Fix shaper using bad LUT params
[Why]
LUT params are not cleared after setting blend TF, which can lead to
same params being used for the shaper, if the shaper func is bypassed.
[How]
Set lut_params to NULL after program_1dlut.
Reviewed-by: Krunoslav Kovac <krunoslav.kovac@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Ilya Bakoulin <ilya.bakoulin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c
index e837554b8a28c..1b9f21fd4f173 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c
@@ -494,6 +494,7 @@ bool dcn32_set_mcm_luts(
}
}
result = mpc->funcs->program_1dlut(mpc, lut_params, mpcc_id);
+ lut_params = NULL;
// Shaper
if (plane_state->in_shaper_func) {
--
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