[PATCH v3 4/6] drm/msm: dp: handle the IRQ_HPD events reported by USB-C

[Dmitry Baryshkov]

Let the MSM DisplayPort driver properly track and handle IRQ_HPD
delivered over the OOB events (e.g. from the USB-C AltMode handler).

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at oss.qualcomm.com>
---
 drivers/gpu/drm/msm/dp/dp_display.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index 7a0623fdbd8e..8df579bb320a 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -1800,4 +1800,7 @@ void msm_dp_bridge_hpd_notify(struct drm_bridge *bridge,
 		msm_dp_add_event(dp, EV_HPD_PLUG_INT, 0, 0);
 	else if (msm_dp_display->link_ready && status == connector_status_disconnected)
 		msm_dp_add_event(dp, EV_HPD_UNPLUG_INT, 0, 0);
+
+	if (extra_status == DRM_CONNECTOR_DP_IRQ_HPD)
+		msm_dp_add_event(dp, EV_IRQ_HPD_INT, 0, 0);
 }

-- 
2.47.3