linux-kernel - Re: [PATCH 1/3] phy: qcom: edp: Correct and clean up eDP/DP combo PHY configuration values

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Message-ID: <1b78ea12-84ba-467e-b541-1ffd2348f38c@oss.qualcomm.com>
Date: Fri, 6 Feb 2026 11:47:24 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Yongxing Mou <yongxing.mou@....qualcomm.com>,
        Vinod Koul <vkoul@...nel.org>,
        Neil Armstrong <neil.armstrong@...aro.org>
Cc: linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] phy: qcom: edp: Correct and clean up eDP/DP combo PHY
 configuration values

On 2/5/26 10:20 AM, Yongxing Mou wrote:
> According to the current HPG settings, most eDP/DP combo PHYs can reuse the
> same configuration values.

Even across the various process nodes?

> DP mode：
> 	-sa8775p/sc7280/sc8280xp/x1e80100
> 	-glymur
> eDP mode(low vdiff):
> 	-glymur/sa8775p/sc8280xp/x1e80100
> 	-sc7280
> The current driver still keeps multiple versions of these tables and
> doesn't fully support every combo PHY mode. This patch removes the
> redundant configs and keeps only the sets we actually use, matching the
> platforms listed above.

I see that e.g. eDP Low-Vdiff swing setting for RBR is:

		hamoa	kodiak
arr[0][1]	0x11	0x12

It may be that this changed later during tuning but it's not reflected
in the docs for kodiak

Konrad