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Tue, 10 Aug 2021 15:29:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 7C5ABC433F1 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=khsieh@codeaurora.org From: Kuogee Hsieh To: robdclark@gmail.com, sean@poorly.run, swboyd@chromium.org, vkoul@kernel.org, agross@kernel.org, bjorn.andersson@linaro.org Cc: abhinavk@codeaurora.org, aravindh@codeaurora.org, khsieh@codeaurora.org, freedreno@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] drm/msm/dp: add drm debug logs to dp_pm_resume/suspend Date: Tue, 10 Aug 2021 08:29:22 -0700 Message-Id: <1628609362-2109-1-git-send-email-khsieh@codeaurora.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Changes in V2: -- correct Fixes text -- drop commit text Fixes: 601f0479c583 ("drm/msm/dp: add logs across DP driver for ease of debugging") Signed-off-by: Kuogee Hsieh --- drivers/gpu/drm/msm/dp/dp_display.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index 8a85613..870b926 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -1284,6 +1284,9 @@ static int dp_pm_resume(struct device *dev) mutex_lock(&dp->event_mutex); + DRM_DEBUG_DP("Before, core_inited=%d power_on=%d\n", + dp->core_initialized, dp_display->power_on); + /* start from disconnected state */ dp->hpd_state = ST_DISCONNECTED; @@ -1315,6 +1318,10 @@ static int dp_pm_resume(struct device *dev) else dp->dp_display.is_connected = false; + DRM_DEBUG_DP("After, sink_count=%d is_connected=%d core_inited=%d power_on=%d\n", + dp->link->sink_count, dp->dp_display.is_connected, + dp->core_initialized, dp_display->power_on); + mutex_unlock(&dp->event_mutex); return 0; @@ -1330,6 +1337,9 @@ static int dp_pm_suspend(struct device *dev) mutex_lock(&dp->event_mutex); + DRM_DEBUG_DP("Before, core_inited=%d power_on=%d\n", + dp->core_initialized, dp_display->power_on); + if (dp->core_initialized == true) { /* mainlink enabled */ if (dp_power_clk_status(dp->power, DP_CTRL_PM)) @@ -1343,6 +1353,9 @@ static int dp_pm_suspend(struct device *dev) /* host_init will be called at pm_resume */ dp->core_initialized = false; + DRM_DEBUG_DP("After, core_inited=%d power_on=%d\n", + dp->core_initialized, dp_display->power_on); + mutex_unlock(&dp->event_mutex); return 0; -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project