drm: xlnx: hdmi: Remove unused hdmi->wait_for_streamup check in xlnx_hdcp_key_store()

xlnx_hdcp_key_store() will return the number of keys it has configured
successfully. Otherwise, it returns an error if the HDMI stream is not
ready or in any other failure cases.

The flag wait_for_streamup check is useless as this variable is always
'0' in the driver. The HDMI driver is not updating this variable in any
conditions. So, this condition is removed because the HDCP code flow
performs these checks in respective api's already.

Signed-off-by: Lakshmi Prasanna Eachuri <lakshmi.prasanna.eachuri@amd.com>
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>

Author: laeachur

drivers/gpu/drm/xlnx/xlnx_hdmi.c

@@ -803,9 +803,6 @@ static ssize_t xlnx_hdcp_key_store(struct device *sysfs_dev, struct device_attri
 		return ret;
 	}
 
-	if (hdmi->wait_for_streamup)
-		return ret;
-
 	if (hdmi->config.hdcp2x_enable) {
 		ret = xlnx_start_hdcp_engine(&hdmi->txhdcp,
 					     HDMI_MAX_LANES);