From: Stephen Boyd <swboyd@chromium.org>
To: Kuogee Hsieh <khsieh@codeaurora.org>,
dri-devel@lists.freedesktop.org, robdclark@gmail.com,
sean@poorly.run
Cc: airlied@linux.ie, linux-arm-msm@vger.kernel.org,
linux-kernel@vger.kernel.org, abhinavk@codeaurora.org,
bjorn.andersson@linaro.org, aravindh@codeaurora.org,
freedreno@lists.freedesktop.org
Subject: Re: [PATCH v2 3/7] drm/msm/dp: reset aux controller after dp_aux_cmd_fifo_tx() failed.
Date: Thu, 22 Jul 2021 19:08:03 +0000 [thread overview]
Message-ID: <CAE-0n5121VG4V9mqw6UTj2T4DrN66r53aCONMJr4bqe_niHz_w@mail.gmail.com> (raw)
In-Reply-To: <1626191647-13901-4-git-send-email-khsieh@codeaurora.org>
Quoting Kuogee Hsieh (2021-07-13 08:54:03)
> Aux hardware calibration sequence requires resetting the aux controller
> in order for the new setting to take effect. However resetting the AUX
> controller will also clear HPD interrupt status which may accidentally
> cause pending unplug interrupt to get lost. Therefore reset aux
> controller only when link is in connection state when dp_aux_cmd_fifo_tx()
> fail. This fixes Link Layer CTS cases 4.2.1.1 and 4.2.1.2.
>
> Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
> ---
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
next prev parent reply other threads:[~2021-07-22 19:08 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-13 15:54 [PATCH v2 0/7] add fixes to pass DP Link Layer compliance test cases Kuogee Hsieh
2021-07-13 15:54 ` [PATCH v2 1/7] drm/msm/dp: use dp_ctrl_off_link_stream during PHY compliance test run Kuogee Hsieh
2021-07-22 19:01 ` Stephen Boyd
2021-07-13 15:54 ` [PATCH v2 2/7] drm/msm/dp: reduce link rate if failed at link training 1 Kuogee Hsieh
2021-07-22 19:05 ` Stephen Boyd
2021-07-13 15:54 ` [PATCH v2 3/7] drm/msm/dp: reset aux controller after dp_aux_cmd_fifo_tx() failed Kuogee Hsieh
2021-07-22 19:08 ` Stephen Boyd [this message]
2021-07-13 15:54 ` [PATCH v2 4/7] drm/msm/dp: replug event is converted into an unplug followed by an plug events Kuogee Hsieh
2021-07-22 19:24 ` Stephen Boyd
2021-07-13 15:54 ` [PATCH v2 5/7] drm/msm/dp: return correct edid checksum after corrupted edid checksum read Kuogee Hsieh
2021-07-22 19:23 ` Stephen Boyd
2021-07-29 16:17 ` khsieh
2021-07-13 15:54 ` [PATCH v2 6/7] drm/msm/dp: do not end dp link training until video is ready Kuogee Hsieh
2021-07-22 19:15 ` Stephen Boyd
2021-07-13 15:54 ` [PATCH v2 7/7] drm/msm/dp: retrain link when loss of symbol lock detected Kuogee Hsieh
2021-07-22 19:14 ` Stephen Boyd
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