linux-kernel - Re: [PATCH v2 1/2] phy/qualcomm: add hbr3_hbr2 voltage and premphasis swing table

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Date:   Thu, 18 Feb 2021 10:46:17 -0800
From:   Stephen Boyd <swboyd@...omium.org>
To:     Kuogee Hsieh <khsieh@...eaurora.org>, agross@...nel.org,
        bjorn.andersson@...aro.org, robdclark@...il.com, sean@...rly.run,
        vkoul@...nel.org
Cc:     tanmay@...eaurora.org, abhinavk@...eaurora.org,
        aravindh@...eaurora.org, khsieh@...eaurora.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] phy/qualcomm: add hbr3_hbr2 voltage and premphasis swing table

Quoting Kuogee Hsieh (2021-02-18 08:51:10)
> Add hbr3_hbr2 voltage and premphasis swing table to support
> HBR3 link rate.
> 
> Changes in V2:
> -- replaced upper case with lower case at hbr3_hbr2 table
> 
> Signed-off-by: Kuogee Hsieh <khsieh@...eaurora.org>
> ---

Reviewed-by: Stephen Boyd <swboyd@...omium.org>

BTW, the DP driver already set rates for HBR2, so does that mean this is
fixing the voltage and preemphasis settings for HBR2? If so we should
backport this to stable trees and mark it as fixing commit 52e013d0bffa
("phy: qcom-qmp: Add support for DP in USB3+DP combo phy").