linux-kernel - [PATCH 5.10 27/54] drm/amd/display: update gamut remap if plane has changed

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Message-Id: <20221013175148.015248234@linuxfoundation.org>
Date:   Thu, 13 Oct 2022 19:52:21 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Dmytro Laktyushkin <Dmytro.Laktyushkin@....com>,
        Wayne Lin <wayne.lin@....com>, Hugo Hu <hugo.hu@....com>,
        Daniel Wheeler <daniel.wheeler@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 27/54] drm/amd/display: update gamut remap if plane has changed

From: Hugo Hu <hugo.hu@....com>

[ Upstream commit 52bb21499cf54fa65b56d97cd0d68579c90207dd ]

[Why]
The desktop plane and full-screen game plane may have different
gamut remap coefficients, if switching between desktop and
full-screen game without updating the gamut remap will cause
incorrect color.

[How]
Update gamut remap if planes change.

Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@....com>
Acked-by: Wayne Lin <wayne.lin@....com>
Signed-off-by: Hugo Hu <hugo.hu@....com>
Tested-by: Daniel Wheeler <daniel.wheeler@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
index 3d778760a3b5..8f66eef0c683 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
@@ -1481,6 +1481,7 @@ static void dcn20_update_dchubp_dpp(
 	/* Any updates are handled in dc interface, just need
 	 * to apply existing for plane enable / opp change */
 	if (pipe_ctx->update_flags.bits.enable || pipe_ctx->update_flags.bits.opp_changed
+			|| pipe_ctx->update_flags.bits.plane_changed
 			|| pipe_ctx->stream->update_flags.bits.gamut_remap
 			|| pipe_ctx->stream->update_flags.bits.out_csc) {
 #if defined(CONFIG_DRM_AMD_DC_DCN3_0)
-- 
2.35.1