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drm/msm/dp: Add sink_count to debug logs

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Add sink count to the debug logs for [un]plug and HPD IRQ handling.

Signed-off-by: Jessica Zhang <jessica.zhang@oss.qualcomm.com>
[DB: dropped link_ready handling]
Tested-by: Val Packett <val@packett.cool> # x1e80100-dell-latitude-7455
Tested-by: Yongxing Mou <yongxing.mou@oss.qualcomm.com> # Hamoa IOT EVK, QCS8300 Ride
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/727620/
Link: https://lore.kernel.org/r/20260524-hpd-refactor-v6-8-cf3ab488dd7b@oss.qualcomm.com
This commit is contained in:
Jessica Zhang 2026-05-24 13:33:36 +03:00 committed by Dmitry Baryshkov
parent 5043357e75
commit c2aed45fda
1 changed files with 18 additions and 12 deletions
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30
drivers/gpu/drm/msm/dp/dp_display.c
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@ -389,8 +389,9 @@ static int msm_dp_hpd_plug_handle(struct msm_dp_display_private *dp)
int ret;
struct platform_device *pdev = dp->msm_dp_display.pdev;
drm_dbg_dp(dp->drm_dev, "Before, type=%d\n",
dp->msm_dp_display.connector_type);
drm_dbg_dp(dp->drm_dev, "Before, type=%d sink_count=%d\n",
dp->msm_dp_display.connector_type,
dp->link->sink_count);
if (dp->msm_dp_display.link_ready)
return 0;
@ -412,8 +413,9 @@ static int msm_dp_hpd_plug_handle(struct msm_dp_display_private *dp)
pm_runtime_put_sync(&pdev->dev);
}
drm_dbg_dp(dp->drm_dev, "After, type=%d\n",
dp->msm_dp_display.connector_type);
drm_dbg_dp(dp->drm_dev, "After, type=%d sink_count=%d\n",
dp->msm_dp_display.connector_type,
dp->link->sink_count);
/* uevent will complete connection part */
return 0;
@ -441,8 +443,9 @@ static int msm_dp_hpd_unplug_handle(struct msm_dp_display_private *dp)
msm_dp_aux_enable_xfers(dp->aux, false);
drm_dbg_dp(dp->drm_dev, "Before, type=%d\n",
dp->msm_dp_display.connector_type);
drm_dbg_dp(dp->drm_dev, "Before, type=%d sink_count=%d\n",
dp->msm_dp_display.connector_type,
dp->link->sink_count);
if (!dp->msm_dp_display.link_ready)
return 0;
@ -466,8 +469,9 @@ static int msm_dp_hpd_unplug_handle(struct msm_dp_display_private *dp)
/* signal the disconnect event early to ensure proper teardown */
msm_dp_display_handle_plugged_change(&dp->msm_dp_display, false);
drm_dbg_dp(dp->drm_dev, "After, type=%d\n",
dp->msm_dp_display.connector_type);
drm_dbg_dp(dp->drm_dev, "After, type=%d, sink_count=%d\n",
dp->msm_dp_display.connector_type,
dp->link->sink_count);
/* uevent will complete disconnection part */
pm_runtime_put_sync(&pdev->dev);
@ -480,8 +484,9 @@ static int msm_dp_irq_hpd_handle(struct msm_dp_display_private *dp)
int rc = 0;
/* irq_hpd can happen at either connected or disconnected state */
drm_dbg_dp(dp->drm_dev, "Before, type=%d\n",
dp->msm_dp_display.connector_type);
drm_dbg_dp(dp->drm_dev, "Before, type=%d, sink_count=%d\n",
dp->msm_dp_display.connector_type,
dp->link->sink_count);
/* check for any test request issued by sink */
rc = msm_dp_link_process_request(dp->link);
@ -494,8 +499,9 @@ static int msm_dp_irq_hpd_handle(struct msm_dp_display_private *dp)
rc = msm_dp_display_handle_irq_hpd(dp);
}
drm_dbg_dp(dp->drm_dev, "After, type=%d\n",
dp->msm_dp_display.connector_type);
drm_dbg_dp(dp->drm_dev, "After, type=%d, sink_count=%d\n",
dp->msm_dp_display.connector_type,
dp->link->sink_count);
return rc;
}