From: Stephen Boyd <swboyd@chromium.org>
To: Kuogee Hsieh <khsieh@codeaurora.org>,
dri-devel@lists.freedesktop.org, robdclark@gmail.com,
sean@poorly.run
Cc: abhinavk@codeaurora.org, aravindh@codeaurora.org,
airlied@linux.ie, daniel@ffwll.ch, bjorn.andersson@linaro.org,
linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 2/6] drm/msm/dp: reduce link rate if failed at link training 1
Date: Tue, 10 Aug 2021 14:32:18 -0700 [thread overview]
Message-ID: <CAE-0n52xzaGKd=5fdXFnqixekRYHf8pfvcp+K3eEZk=+siPH1w@mail.gmail.com> (raw)
In-Reply-To: <1628196295-7382-3-git-send-email-khsieh@codeaurora.org>
Quoting Kuogee Hsieh (2021-08-05 13:44:51)
> Reduce link rate and re start link training if link training 1
> failed due to loss of clock recovery done to fix Link Layer
> CTS case 4.3.1.7. Also only update voltage and pre-emphasis
> swing level after link training started to fix Link Layer CTS
> case 4.3.1.6.
>
> Changes in V2:
> -- replaced cr_status with link_status[DP_LINK_STATUS_SIZE]
> -- replaced dp_ctrl_any_lane_cr_done() with dp_ctrl_colco_recovery_any_ok()
> -- replaced dp_ctrl_any_ane_cr_lose() with !drm_dp_clock_recovery_ok()
>
> Changes in V3:
> -- return failed if lane_count <= 1
>
> Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
> ---
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
next prev parent reply other threads:[~2021-08-10 21:32 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-05 20:44 [PATCH v3 0/6] add fixes to pass DP Link Layer compliance test cases Kuogee Hsieh
2021-08-05 20:44 ` [PATCH v3 1/6] drm/msm/dp: use dp_ctrl_off_link_stream during PHY compliance test run Kuogee Hsieh
2021-08-05 20:44 ` [PATCH v3 2/6] drm/msm/dp: reduce link rate if failed at link training 1 Kuogee Hsieh
2021-08-10 21:32 ` Stephen Boyd [this message]
2021-08-05 20:44 ` [PATCH v3 3/6] drm/msm/dp: reset aux controller after dp_aux_cmd_fifo_tx() failed Kuogee Hsieh
2021-08-05 20:44 ` [PATCH v3 4/6] drm/msm/dp: replug event is converted into an unplug followed by an plug events Kuogee Hsieh
2021-08-10 21:33 ` Stephen Boyd
2021-08-05 20:44 ` [PATCH v3 5/6] drm/msm/dp: return correct edid checksum after corrupted edid checksum read Kuogee Hsieh
2021-08-10 21:34 ` Stephen Boyd
2021-08-05 20:44 ` [PATCH v3 6/6] drm/msm/dp: do not end dp link training until video is ready Kuogee Hsieh
2021-08-10 21:35 ` Stephen Boyd
2021-08-10 21:49 ` [PATCH v3 0/6] add fixes to pass DP Link Layer compliance test cases Stephen Boyd
2021-08-11 7:20 ` Jani Nikula
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