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From: Kuogee Hsieh <khsieh@codeaurora.org>
To: dri-devel@lists.freedesktop.org, robdclark@gmail.com,
	sean@poorly.run, swboyd@chromium.org
Cc: Kuogee Hsieh <khsieh@codeaurora.org>,
	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: [PATCH v2 1/7] drm/msm/dp: use dp_ctrl_off_link_stream during PHY compliance test run
Date: Tue, 13 Jul 2021 08:54:01 -0700	[thread overview]
Message-ID: <1626191647-13901-2-git-send-email-khsieh@codeaurora.org> (raw)
In-Reply-To: <1626191647-13901-1-git-send-email-khsieh@codeaurora.org>

DP cable should always connect to DPU during the entire PHY compliance
testing run. Since DP PHY compliance test is executed at irq_hpd event
context, dp_ctrl_off_link_stream() should be used instead of dp_ctrl_off().
dp_ctrl_off() is used for unplug event which is triggered when DP cable is
dis connected.

Changes in V2:
-- add fixes statement

Fixes: f21c8a276c2d ("drm/msm/dp: handle irq_hpd with sink_count = 0 correctly")

Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
---
 drivers/gpu/drm/msm/dp/dp_ctrl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c
index caf71fa..27fb0f0 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
@@ -1530,7 +1530,7 @@ static int dp_ctrl_process_phy_test_request(struct dp_ctrl_private *ctrl)
 	 * running. Add the global reset just before disabling the
 	 * link clocks and core clocks.
 	 */
-	ret = dp_ctrl_off(&ctrl->dp_ctrl);
+	ret = dp_ctrl_off_link_stream(&ctrl->dp_ctrl);
 	if (ret) {
 		DRM_ERROR("failed to disable DP controller\n");
 		return ret;
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


  reply	other threads:[~2021-07-13 15:54 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 ` Kuogee Hsieh [this message]
2021-07-22 19:01   ` [PATCH v2 1/7] drm/msm/dp: use dp_ctrl_off_link_stream during PHY compliance test run 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
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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