V4L/DVB (6648): xc2028: add sleep hook

Add sleep method to enable putting the tuner into standby mode.

Signed-off-by: Chris Pascoe <c.pascoe@itee.uq.edu.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

diff --git a/drivers/media/video/tuner-xc2028.c b/drivers/media/video/tuner-xc2028.c
index cc6fa2f..8f9ccae 100644 (file)
--- a/drivers/media/video/tuner-xc2028.c
+++ b/drivers/media/video/tuner-xc2028.c
@@ -929,6 +929,28 @@ static int xc2028_set_params(struct dvb_frontend *fe,
 
 }
 
+static int xc2028_sleep(struct dvb_frontend *fe)
+{
+       struct xc2028_data *priv = fe->tuner_priv;
+       int rc = 0;
+
+       tuner_dbg("%s called\n", __FUNCTION__);
+
+       mutex_lock(&priv->lock);
+
+       if (priv->firm_version < 0x0202)
+               rc = send_seq(priv, {0x00, 0x08, 0x00, 0x00});
+       else
+               rc = send_seq(priv, {0x80, 0x08, 0x00, 0x00});
+
+       priv->cur_fw.type = 0;  /* need firmware reload */
+
+       mutex_unlock(&priv->lock);
+
+       return rc;
+}
+
+
 static int xc2028_dvb_release(struct dvb_frontend *fe)
 {
        struct xc2028_data *priv = fe->tuner_priv;
@@ -1009,6 +1031,7 @@ static const struct dvb_tuner_ops xc2028_dvb_tuner_ops = {
        .get_frequency     = xc2028_get_frequency,
        .get_rf_strength   = xc2028_signal,
        .set_params        = xc2028_set_params,
+       .sleep             = xc2028_sleep,
 
 };