[PATCH v4 8/8] usb: typec: ucsi: huawei-gaokun: pass down HPD_IRQ events

[Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>]

The DisplayPort standard defines a special kind of HPD events called
IRQ_HPD. These events are used to notify DP Source about the events on
the Sink side.

Pass IRQ_HPD events from the EC to the HPD bridge, letting those
to be delivered to the DisplayPort driver.

Reviewed-by: Pengyu Luo <mitltlatltl@gmail.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
---
 drivers/usb/typec/ucsi/ucsi_huawei_gaokun.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/typec/ucsi/ucsi_huawei_gaokun.c b/drivers/usb/typec/ucsi/ucsi_huawei_gaokun.c
index ca749fde49bd..5e3f887ecbd8 100644
--- a/drivers/usb/typec/ucsi/ucsi_huawei_gaokun.c
+++ b/drivers/usb/typec/ucsi/ucsi_huawei_gaokun.c
@@ -299,10 +299,13 @@ static void gaokun_ucsi_handle_altmode(struct gaokun_ucsi_port *port)
 
 	/* UCSI callback .connector_status() have set orientation */
 	if (port->bridge)
-		drm_aux_hpd_bridge_notify(&port->bridge->dev,
-					  port->hpd_state ?
-					  connector_status_connected :
-					  connector_status_disconnected);
+		drm_aux_hpd_bridge_notify_extra(&port->bridge->dev,
+						port->hpd_state ?
+						connector_status_connected :
+						connector_status_disconnected,
+						port->hpd_irq ?
+						DRM_CONNECTOR_DP_IRQ_HPD :
+						DRM_CONNECTOR_NO_EXTRA_STATUS);
 
 	gaokun_ec_ucsi_pan_ack(uec->ec, port->idx);
 }

-- 
2.47.3


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