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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);

WARNING: multiple messages have this Message-ID (diff)
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 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);

  reply	other threads:[~2021-07-22 19:23 UTC|newest]

Thread overview: 32+ 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 ` 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
2021-07-13 15:54   ` Kuogee Hsieh
2021-07-22 19:01   ` Stephen Boyd
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
2021-07-13 15:54   ` Kuogee Hsieh
2021-07-22 19:05   ` Stephen Boyd
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
2021-07-13 15:54   ` Kuogee Hsieh
2021-07-22 19:08   ` Stephen Boyd
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
2021-07-13 15:54   ` Kuogee Hsieh
2021-07-22 19:24   ` Stephen Boyd
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
2021-07-13 15:54   ` Kuogee Hsieh
2021-07-22 19:23   ` Stephen Boyd [this message]
2021-07-22 19:23     ` Stephen Boyd
2021-07-29 16:17     ` khsieh
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
2021-07-13 15:54   ` Kuogee Hsieh
2021-07-22 19:15   ` Stephen Boyd
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
2021-07-13 15:54   ` Kuogee Hsieh
2021-07-22 19:14   ` Stephen Boyd
2021-07-22 19:14     ` Stephen Boyd

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