From: Gabe Teeger <gabe.teeger@amd.com>
Date: Mon, 29 Jan 2024 18:31:44 +0000 (-0500)
Subject: Revert "drm/amd/display: Send DTBCLK disable message on first commit"
X-Git-Tag: v6.8.5~88
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0dab75b433ed2480d57ae4f8f725186a46223e42;p=thirdparty%2Fkernel%2Fstable.git

Revert "drm/amd/display: Send DTBCLK disable message on first commit"

commit 3a6a32b31a111f6e66526fb2d3cb13a876465076 upstream.

This reverts commit f341055b10bd8be55c3c995dff5f770b236b8ca9.

System hang observed, this commit is thought to be the
regression point.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Ovidiu Bunea <ovidiu.bunea@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Gabe Teeger <gabe.teeger@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
index f07629694ec5e..9cbab880c6233 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
@@ -415,7 +415,6 @@ void dcn35_init_clocks(struct clk_mgr *clk_mgr)
 	memset(&(clk_mgr->clks), 0, sizeof(struct dc_clocks));
 
 	// Assumption is that boot state always supports pstate
-	clk_mgr->clks.dtbclk_en = true;
 	clk_mgr->clks.ref_dtbclk_khz = ref_dtbclk;	// restore ref_dtbclk
 	clk_mgr->clks.p_state_change_support = true;
 	clk_mgr->clks.prev_p_state_change_support = true;