linux-kernel - [PATCH AUTOSEL 6.14 479/642] drm/amd/display: Populate register address for dentist for dcn401

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250505221419.2672473-479-sashal@kernel.org>
Date: Mon,  5 May 2025 18:11:35 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Dillon Varone <dillon.varone@....com>,
	Alvin Lee <alvin.lee2@....com>,
	Wayne Lin <wayne.lin@....com>,
	Daniel Wheeler <daniel.wheeler@....com>,
	Alex Deucher <alexander.deucher@....com>,
	Sasha Levin <sashal@...nel.org>,
	harry.wentland@....com,
	sunpeng.li@....com,
	christian.koenig@....com,
	airlied@...il.com,
	simona@...ll.ch,
	Alvin.Lee2@....com,
	alex.hung@....com,
	zaeem.mohamed@....com,
	chris.park@....com,
	ryanseto@....com,
	martin.leung@....com,
	Charlene.Liu@....com,
	amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 6.14 479/642] drm/amd/display: Populate register address for dentist for dcn401

From: Dillon Varone <dillon.varone@....com>

[ Upstream commit 5f0d1ef6f16e150ee46cc00b8d233d9d271fe39e ]

[WHY&HOW]
Address was not previously populated which can result in incorrect
clock frequencies being read on boot.

Reviewed-by: Alvin Lee <alvin.lee2@....com>
Signed-off-by: Dillon Varone <dillon.varone@....com>
Signed-off-by: Wayne Lin <wayne.lin@....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/clk_mgr/dcn401/dcn401_clk_mgr.c | 2 ++
 drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h       | 1 +
 2 files changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn401/dcn401_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn401/dcn401_clk_mgr.c
index 8082bb8776114..a3b8e3d4a429e 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn401/dcn401_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn401/dcn401_clk_mgr.c
@@ -24,6 +24,8 @@
 
 #include "dml/dcn401/dcn401_fpu.h"
 
+#define DCN_BASE__INST0_SEG1                       0x000000C0
+
 #define mmCLK01_CLK0_CLK_PLL_REQ                        0x16E37
 #define mmCLK01_CLK0_CLK0_DFS_CNTL                      0x16E69
 #define mmCLK01_CLK0_CLK1_DFS_CNTL                      0x16E6C
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h
index 7a1ca1e98059b..221645c023b50 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr_internal.h
@@ -221,6 +221,7 @@ enum dentist_divider_range {
 	CLK_SF(CLK0_CLK_PLL_REQ, FbMult_frac, mask_sh)
 
 #define CLK_REG_LIST_DCN401()	  \
+	SR(DENTIST_DISPCLK_CNTL), \
 	CLK_SR_DCN401(CLK0_CLK_PLL_REQ,   CLK01, 0), \
 	CLK_SR_DCN401(CLK0_CLK0_DFS_CNTL, CLK01, 0), \
 	CLK_SR_DCN401(CLK0_CLK1_DFS_CNTL,  CLK01, 0), \
-- 
2.39.5