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drm/bridge: analogix_dp: Fix voltage_swing/pre_emphasis level calculation

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Fixes: d7ad116fb3 ("drm/rockchip: analogix_dp: Add support for rk3568")
Signed-off-by: Wyon Bi <bivvy.bi@rock-chips.com>
Change-Id: I6da4a8c0c4b5486bac6bb054aee6535118e81f60
This commit is contained in:
Wyon Bi
2021-01-06 12:15:03 +00:00
committed by Tao Huang
parent ebb99ecd46
commit 22e1c3dbb7
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
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@@ -716,10 +716,10 @@ void analogix_dp_set_lane_link_training(struct analogix_dp_device *dp)
u8 training_lane = dp->link_train.training_lane[lane];
u8 vs, pe;
vs = (training_lane >> DP_TRAIN_VOLTAGE_SWING_SHIFT) &
DP_TRAIN_VOLTAGE_SWING_MASK;
pe = (training_lane >> DP_TRAIN_PRE_EMPHASIS_SHIFT) &
DP_TRAIN_PRE_EMPHASIS_MASK;
vs = (training_lane & DP_TRAIN_VOLTAGE_SWING_MASK) >>
DP_TRAIN_VOLTAGE_SWING_SHIFT;
pe = (training_lane & DP_TRAIN_PRE_EMPHASIS_MASK) >>
DP_TRAIN_PRE_EMPHASIS_SHIFT;
phy_cfg.dp.voltage[lane] = vs;
phy_cfg.dp.pre[lane] = pe;
}