[PATCH] cec: report Vendor ID after initialization

[Hans Verkuil <hverkuil@xxxxxxxxx>]

The CEC specification requires that the Vendor ID (if any) is reported after
a logical address was claimed.

This was never done, so add support for this.

Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
diff --git a/drivers/media/cec/cec-adap.c b/drivers/media/cec/cec-adap.c
index 31d1f4ab915e..ee4decc1cd64 100644
--- a/drivers/media/cec/cec-adap.c
+++ b/drivers/media/cec/cec-adap.c
@@ -1405,6 +1405,13 @@ static int cec_config_thread_func(void *arg)
 			las->log_addr[i],
 			cec_phys_addr_exp(adap->phys_addr));
 		cec_transmit_msg_fh(adap, &msg, NULL, false);
+
+		/* Report Vendor ID */
+		if (adap->log_addrs.vendor_id != CEC_VENDOR_ID_NONE) {
+			cec_msg_device_vendor_id(&msg,
+						 adap->log_addrs.vendor_id);
+			cec_transmit_msg_fh(adap, &msg, NULL, false);
+		}
 	}
 	adap->kthread_config = NULL;
 	complete(&adap->config_completion);