V4L/DVB (7351): tuner-simple: add init and sleep methods

taken from dvb-pll

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 48 insertions, 0 deletions

diff --git a/drivers/media/video/tuner-simple.c b/drivers/media/video/tuner-simple.c
index 3ec76391a60d..3a27d4a8ce38 100644
--- a/drivers/media/video/tuner-simple.c
+++ b/drivers/media/video/tuner-simple.c
@@ -810,6 +810,52 @@ fail:
         return ret;
 }
 
+static int simple_init(struct dvb_frontend *fe)
+{
+        struct tuner_simple_priv *priv = fe->tuner_priv;
+
+        if (priv->i2c_props.adap == NULL)
+                return -EINVAL;
+
+        if (priv->tun->initdata) {
+                int ret;
+
+                if (fe->ops.i2c_gate_ctrl)
+                        fe->ops.i2c_gate_ctrl(fe, 1);
+
+                ret = tuner_i2c_xfer_send(&priv->i2c_props,
+                                          priv->tun->initdata + 1,
+                                          priv->tun->initdata[0]);
+                if (ret != priv->tun->initdata[0])
+                        return ret;
+        }
+
+        return 0;
+}
+
+static int simple_sleep(struct dvb_frontend *fe)
+{
+        struct tuner_simple_priv *priv = fe->tuner_priv;
+
+        if (priv->i2c_props.adap == NULL)
+                return -EINVAL;
+
+        if (priv->tun->sleepdata) {
+                int ret;
+
+                if (fe->ops.i2c_gate_ctrl)
+                        fe->ops.i2c_gate_ctrl(fe, 1);
+
+                ret = tuner_i2c_xfer_send(&priv->i2c_props,
+                                          priv->tun->sleepdata + 1,
+                                          priv->tun->sleepdata[0]);
+                if (ret != priv->tun->sleepdata[0])
+                        return ret;
+        }
+
+        return 0;
+}
+
 static int simple_release(struct dvb_frontend *fe)
 {
         struct tuner_simple_priv *priv = fe->tuner_priv;
@@ -841,6 +887,8 @@ static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
 }
 
 static struct dvb_tuner_ops simple_tuner_ops = {
+        .init              = simple_init,
+        .sleep             = simple_sleep,
         .set_analog_params = simple_set_params,
         .set_params        = simple_dvb_set_params,
         .calc_regs         = simple_dvb_calc_regs,