linux-kernel - Re: [PATCH v1 1/2] drm/msm/dp: reset DP controller before transmit phy test pattern

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Date:   Mon, 25 Apr 2022 16:36:28 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Kuogee Hsieh <quic_khsieh@...cinc.com>, agross@...nel.org,
        airlied@...ux.ie, bjorn.andersson@...aro.org, daniel@...ll.ch,
        dmitry.baryshkov@...aro.org, dri-devel@...ts.freedesktop.org,
        robdclark@...il.com, sean@...rly.run, vkoul@...nel.org
Cc:     quic_abhinavk@...cinc.com, quic_aravindh@...cinc.com,
        quic_sbillaka@...cinc.com, freedreno@...ts.freedesktop.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/2] drm/msm/dp: reset DP controller before transmit
 phy test pattern

Quoting Kuogee Hsieh (2022-04-25 15:11:02)
> DP controller state can not switch from video ready state to
> transmit phy pattern state at run time. DP mainlink has to be
> teared down followed by reset controller to default state to have
> DP controller switch to transmit phy test pattern state and start
> generate specified phy test pattern to sinker once main link setup
> again.
>
> Fixes: ee35444be0c8 ("drm/msm/dp: use dp_ctrl_off_link_stream during PHY compliance test run")

What commit is this? I think it's supposed to be

Fixes: 52352fe2f866 ("drm/msm/dp: use dp_ctrl_off_link_stream during
PHY compliance test run")

> Signed-off-by: Kuogee Hsieh <quic_khsieh@...cinc.com>
> ---

Otherwise,

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