linux-kernel - [PATCH 5.18 037/181] drm/amd/display: Fix typo in override_lane

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Date:   Mon, 27 Jun 2022 13:20:10 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Daniel Wheeler <daniel.wheeler@....com>,
        Wenjing Liu <Wenjing.Liu@....com>,
        Alan Liu <HaoPing.Liu@....com>,
        George Shen <george.shen@....com>,
        Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 5.18 037/181] drm/amd/display: Fix typo in override_lane_settings

From: George Shen <george.shen@....com>

commit 98b02e9f002b21944176774cf420c4d674f6201c upstream.

[Why]
The function currently skips overriding the drive
settings of the first lane.

[How]
Change for loop to start at 0 instead of 1.

Tested-by: Daniel Wheeler <daniel.wheeler@....com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@....com>
Acked-by: Alan Liu <HaoPing.Liu@....com>
Signed-off-by: George Shen <george.shen@....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/core/dc_link_dp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -944,7 +944,7 @@ static void override_lane_settings(const
 
 		return;
 
-	for (lane = 1; lane < LANE_COUNT_DP_MAX; lane++) {
+	for (lane = 0; lane < LANE_COUNT_DP_MAX; lane++) {
 		if (lt_settings->voltage_swing)
 			lane_settings[lane].VOLTAGE_SWING = *lt_settings->voltage_swing;
 		if (lt_settings->pre_emphasis)