From 2bd7a06a1208aaacb4e7a2a5436c23bce8d70801 Mon Sep 17 00:00:00 2001
From: Khaled Almahallawy <khaled.almahallawy@intel.com>
Date: Wed, 13 Dec 2023 13:15:42 -0800
Subject: [PATCH] drm/i915/dp: Fix passing the correct DPCD_REV for drm_dp_set_phy_test_pattern
Git-commit: 2bd7a06a1208aaacb4e7a2a5436c23bce8d70801
Patch-mainline: v6.7
Alt-commit: 3ee302ec22d6e1d7d1e6d381b0d507ee80f2135c
References: git-fixes
Alt-commit: 3d9e9020b92288871b02f194c3ec88e03a1afa88

Using link_status to get DPCD_REV fails when disabling/defaulting
phy pattern. Use intel_dp->dpcd to access DPCD_REV correctly.

Fixes: 8cdf72711928 ("drm/i915/dp: Program vswing, pre-emphasis, test-pattern")
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Lee Shawn C <shawn.c.lee@intel.com>
Signed-off-by: Khaled Almahallawy <khaled.almahallawy@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231213211542.3585105-3-khaled.almahallawy@intel.com
(cherry picked from commit 3ee302ec22d6e1d7d1e6d381b0d507ee80f2135c)

Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/i915/display/intel_dp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index b21bcd40f111..62ce92772367 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4496,7 +4496,7 @@ static void intel_dp_process_phy_request(struct intel_dp *intel_dp,
 			  intel_dp->train_set, crtc_state->lane_count);
 
 	drm_dp_set_phy_test_pattern(&intel_dp->aux, data,
-				    link_status[DP_DPCD_REV]);
+				    intel_dp->dpcd[DP_DPCD_REV]);
 }
 
 static u8 intel_dp_autotest_phy_pattern(struct intel_dp *intel_dp)
-- 
2.35.3