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 v2 5/7] drm/msm/dp: return correct edid checksum after corrupted edid checksum read
Date: Thu, 22 Jul 2021 19:23:29 +0000 [thread overview]
Message-ID: <CAE-0n539r5zQx7zX9bECspKUAypQ8VucgeMNTmqAjHOCemVmOg@mail.gmail.com> (raw)
In-Reply-To: <1626191647-13901-6-git-send-email-khsieh@codeaurora.org>
Quoting Kuogee Hsieh (2021-07-13 08:54:05)
> diff --git a/drivers/gpu/drm/msm/dp/dp_panel.c b/drivers/gpu/drm/msm/dp/dp_panel.c
> index 88196f7..0fdb551 100644
> --- a/drivers/gpu/drm/msm/dp/dp_panel.c
> +++ b/drivers/gpu/drm/msm/dp/dp_panel.c
> @@ -303,7 +303,12 @@ void dp_panel_handle_sink_request(struct dp_panel *dp_panel)
> panel = container_of(dp_panel, struct dp_panel_private, dp_panel);
>
> if (panel->link->sink_request & DP_TEST_LINK_EDID_READ) {
> - u8 checksum = dp_panel_get_edid_checksum(dp_panel->edid);
> + u8 checksum;
> +
> + if (dp_panel->edid)
> + checksum = dp_panel_get_edid_checksum(dp_panel->edid);
> + else
> + checksum = dp_panel->connector->real_edid_checksum;
Is there any reason why we can't use connector->real_edid_checksum all
the time?
>
> dp_link_send_edid_checksum(panel->link, checksum);
> dp_link_send_test_response(panel->link);
next prev parent reply other threads:[~2021-07-22 19:23 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
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 [this message]
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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