linux-kernel - Re: [PATCH 7/7] drm/msm/dp: retrain link when loss of symbol lock detected

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Message-ID: <CAE-0n50ysxXkjWjmRhxUywPLEH4jkkDnweM969QX0bkKA2WU=A@mail.gmail.com>
Date:   Thu, 15 Jul 2021 21:00:18 +0200
From:   Stephen Boyd <swboyd@...omium.org>
To:     khsieh@...eaurora.org
Cc:     dri-devel@...ts.freedesktop.org, robdclark@...il.com,
        sean@...rly.run, abhinavk@...eaurora.org, aravindh@...eaurora.org,
        airlied@...ux.ie, daniel@...ll.ch, bjorn.andersson@...aro.org,
        linux-arm-msm@...r.kernel.org, freedreno@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/7] drm/msm/dp: retrain link when loss of symbol lock detected

Quoting khsieh@...eaurora.org (2021-07-09 10:16:52)
> On 2021-07-08 00:21, Stephen Boyd wrote:
> > Quoting Kuogee Hsieh (2021-07-06 10:20:20)
> >> Main link symbol locked is achieved at end of link training 2. Some
> >> dongle main link symbol may become unlocked again if host did not end
> >> link training soon enough after completion of link training 2. Host
> >> have to re train main link if loss of symbol lock detected before
> >> end link training so that the coming video stream can be transmitted
> >> to sink properly.
> >>
> >> Signed-off-by: Kuogee Hsieh <khsieh@...eaurora.org>
> >
> > I guess this is a fix for the original driver, so it should be tagged
> > with Fixes appropriately.
> Actually, this is fix on patch #6 : drm/msm/dp: do not end dp link
> training until video is ready
> Should i merge patch #6 and #7 together?
> Or can you suggest what should I do?

Yes if it fixes the patch before this one it should be combined.