[PATCH v1 2/2] drm/msm/dp: Introduce link training per-segment for LTTPRs

Johan Hovold johan at kernel.org
Tue Mar 11 08:28:22 UTC 2025


Hi Aleksandrs,

Just a drive-by comment.

On Mon, Mar 10, 2025 at 10:05:52PM +0100, Aleksandrs Vinarskis wrote:

> @@ -1084,10 +1091,13 @@ static int msm_dp_ctrl_update_vx_px(struct msm_dp_ctrl_private *ctrl)
>  }
>  
>  static bool msm_dp_ctrl_train_pattern_set(struct msm_dp_ctrl_private *ctrl,
> -		u8 pattern)
> +		u8 pattern, enum drm_dp_phy dp_phy)
>  {
>  	u8 buf;
>  	int ret = 0;
> +	int reg = dp_phy == DP_PHY_DPRX ?
> +			    DP_TRAINING_PATTERN_SET :
> +			    DP_TRAINING_PATTERN_SET_PHY_REPEATER(dp_phy);

This is hardly readable; avoid using the ternary operator and split
declaration from non-trivial initialisation.

Johan


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