Merge "msm: mdss: hdmi: do not timeout on hdcp re-authentication"

	return 0;

} /* hdmi_hdcp_authenticate */

/*

 * Only retries defined times then abort current authenticating process

 * Send check_topology message to notify any hdcpmanager's client of non-

 * hdcp authenticated data link so the client can tear down any active secure

 * playback.

 * Reduce hdcp link to regular hdmi data link with hdcp disabled so any

 * un-secure like UI & menu still can be sent over HDMI and display.

 */

#define AUTH_RETRIES_TIME (30)

static int hdmi_msm_if_abort_reauth(struct hdmi_hdcp_ctrl *hdcp_ctrl)

{

	int ret = 0;

	if (!hdcp_ctrl) {

		DEV_ERR("%s: invalid input\n", __func__);

		return -EINVAL;

	}

	if (++hdcp_ctrl->auth_retries == AUTH_RETRIES_TIME) {

		mutex_lock(hdcp_ctrl->init_data.mutex);

		hdcp_ctrl->hdcp_state = HDCP_STATE_INACTIVE;

		mutex_unlock(hdcp_ctrl->init_data.mutex);

		hdcp_ctrl->auth_retries = 0;

		ret = -ERANGE;

	}

	return ret;

}

int hdmi_hdcp_reauthenticate(void *input)

{

	struct hdmi_hdcp_ctrl *hdcp_ctrl = (struct hdmi_hdcp_ctrl *)input;

		DSS_REG_R(hdcp_ctrl->init_data.core_io,

		HDMI_HPD_CTRL) | BIT(28));

	ret = hdmi_msm_if_abort_reauth(hdcp_ctrl);

	if (ret) {

		DEV_ERR("%s: abort reauthentication!\n", __func__);

		return ret;

	}

	/* Restart authentication attempt */

	DEV_DBG("%s: %s: Scheduling work to start HDCP authentication",

		__func__, HDCP_STATE_NAME);