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Message-Id: <20250505221419.2672473-467-sashal@kernel.org>
Date: Mon, 5 May 2025 18:11:23 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
stable@...r.kernel.org
Cc: Brandon Syu <Brandon.Syu@....com>,
Charlene Liu <charlene.liu@....com>,
Alex Hung <alex.hung@....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,
Charlene.Liu@....com,
alvin.lee2@....com,
jerry.zuo@....com,
chiahsuan.chung@....com,
Kaitlyn.Tse@....com,
Ovidiu.Bunea@....com,
ryanseto@....com,
martin.tsai@....com,
yi-lchen@....com,
tjakobi@...h.uni-bielefeld.de,
Sungjoon.Kim@....com,
michael.strauss@....com,
amd-gfx@...ts.freedesktop.org,
dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 6.14 467/642] Revert "drm/amd/display: Exit idle optimizations before attempt to access PHY"
From: Brandon Syu <Brandon.Syu@....com>
[ Upstream commit be704e5ef4bd66dee9bb3f876964327e3a247d31 ]
This reverts commit de612738e9771bd66aeb20044486c457c512f684.
Reason to revert: screen flashes or gray screen appeared half of the
screen after resume from S4/S5.
Reviewed-by: Charlene Liu <charlene.liu@....com>
Signed-off-by: Brandon Syu <Brandon.Syu@....com>
Signed-off-by: Alex Hung <alex.hung@....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/hwss/dce110/dce110_hwseq.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
index 94ceccfc04982..2f5f3e749a1ab 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
@@ -1889,7 +1889,6 @@ void dce110_enable_accelerated_mode(struct dc *dc, struct dc_state *context)
bool can_apply_edp_fast_boot = false;
bool can_apply_seamless_boot = false;
bool keep_edp_vdd_on = false;
- struct dc_bios *dcb = dc->ctx->dc_bios;
DC_LOGGER_INIT();
@@ -1966,8 +1965,6 @@ void dce110_enable_accelerated_mode(struct dc *dc, struct dc_state *context)
hws->funcs.edp_backlight_control(edp_link_with_sink, false);
}
/*resume from S3, no vbios posting, no need to power down again*/
- if (dcb && dcb->funcs && !dcb->funcs->is_accelerated_mode(dcb))
- clk_mgr_exit_optimized_pwr_state(dc, dc->clk_mgr);
power_down_all_hw_blocks(dc);
@@ -1980,8 +1977,6 @@ void dce110_enable_accelerated_mode(struct dc *dc, struct dc_state *context)
disable_vga_and_power_gate_all_controllers(dc);
if (edp_link_with_sink && !keep_edp_vdd_on)
dc->hwss.edp_power_control(edp_link_with_sink, false);
- if (dcb && dcb->funcs && !dcb->funcs->is_accelerated_mode(dcb))
- clk_mgr_optimize_pwr_state(dc, dc->clk_mgr);
}
bios_set_scratch_acc_mode_change(dc->ctx->dc_bios, 1);
}
--
2.39.5
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