[media] tua9001: enter full power save on attach

Disable RXEN and enable RESETN pins on attach to ensure chip is
totally powered down after attach.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/tuners/tua9001.c

@@ -261,6 +261,16 @@ struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe,
 				TUA9001_CMD_CEN, 1);
 		if (ret < 0)
 			goto err;
+
+		ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
+				TUA9001_CMD_RXEN, 0);
+		if (ret < 0)
+			goto err;
+
+		ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
+				TUA9001_CMD_RESETN, 1);
+		if (ret < 0)
+			goto err;
 	}
 
 	dev_info(&priv->i2c->dev,