linux-kernel - [PATCH 5.14 054/125] drm/amd/display: Moved dccg init to after bios golden init

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Date:   Mon,  1 Nov 2021 10:17:07 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Aric Cyr <Aric.Cyr@....com>,
        Eric Yang <eric.yang2@....com>,
        Agustin Gutierrez Sanchez <agustin.gutierrez@....com>,
        Jake Wang <haonan.wang2@....com>,
        Daniel Wheeler <daniel.wheeler@....com>,
        Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 5.14 054/125] drm/amd/display: Moved dccg init to after bios golden init

From: Jake Wang <haonan.wang2@....com>

commit 2ef8ea23942f4c2569930c34e7689a0cb1b232cc upstream.

[Why]
bios_golden_init will override dccg_init during init_hw.

[How]
Move dccg_init to after bios_golden_init.

Reviewed-by: Aric Cyr <Aric.Cyr@....com>
Reviewed-by: Eric Yang <eric.yang2@....com>
Acked-by: Agustin Gutierrez Sanchez <agustin.gutierrez@....com>
Signed-off-by: Jake Wang <haonan.wang2@....com>
Tested-by: Daniel Wheeler <daniel.wheeler@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Cc: stable@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c |    7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c
@@ -76,10 +76,6 @@ void dcn31_init_hw(struct dc *dc)
 	if (dc->clk_mgr && dc->clk_mgr->funcs->init_clocks)
 		dc->clk_mgr->funcs->init_clocks(dc->clk_mgr);
 
-	// Initialize the dccg
-	if (res_pool->dccg->funcs->dccg_init)
-		res_pool->dccg->funcs->dccg_init(res_pool->dccg);
-
 	if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) {
 
 		REG_WRITE(REFCLK_CNTL, 0);
@@ -106,6 +102,9 @@ void dcn31_init_hw(struct dc *dc)
 		hws->funcs.bios_golden_init(dc);
 		hws->funcs.disable_vga(dc->hwseq);
 	}
+	// Initialize the dccg
+	if (res_pool->dccg->funcs->dccg_init)
+		res_pool->dccg->funcs->dccg_init(res_pool->dccg);
 
 	if (dc->debug.enable_mem_low_power.bits.dmcu) {
 		// Force ERAM to shutdown if DMCU is not enabled