V4L/DVB (3847): Convert cx22700 to refactored tuner code

Convert to tuner_ops calls.
Remove pll function pointers from structure.
Remove unneeded tuner calls.
Add i2c gate control function.

Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

2 files changed, 17 insertions, 13 deletions

diff --git a/drivers/media/dvb/frontends/cx22700.c b/drivers/media/dvb/frontends/cx22700.c
index 755f774f6b7d..02fee904752e 100644
--- a/drivers/media/dvb/frontends/cx22700.c
+++ b/drivers/media/dvb/frontends/cx22700.c
@@ -247,12 +247,6 @@ static int cx22700_init (struct dvb_frontend* fe)
 
         cx22700_writereg (state, 0x00, 0x01);
 
-        if (state->config->pll_init) {
-                cx22700_writereg (state, 0x0a, 0x00);  /* open i2c bus switch */
-                state->config->pll_init(fe);
-                cx22700_writereg (state, 0x0a, 0x01);  /* close i2c bus switch */
-        }
-
         return 0;
 }
 
@@ -333,9 +327,11 @@ static int cx22700_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
         cx22700_writereg (state, 0x00, 0x02); /* XXX CHECKME: soft reset*/
         cx22700_writereg (state, 0x00, 0x00);
 
-        cx22700_writereg (state, 0x0a, 0x00);  /* open i2c bus switch */
-        state->config->pll_set(fe, p);
-        cx22700_writereg (state, 0x0a, 0x01);  /* close i2c bus switch */
+        if (fe->ops->tuner_ops.set_params) {
+                fe->ops->tuner_ops.set_params(fe, p);
+                if (fe->ops->i2c_gate_ctrl) fe->ops->i2c_gate_ctrl(fe, 0);
+        }
+
         cx22700_set_inversion (state, p->inversion);
         cx22700_set_tps (state, &p->u.ofdm);
         cx22700_writereg (state, 0x37, 0x01);  /* PAL loop filter off */
@@ -353,6 +349,17 @@ static int cx22700_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_par
         return cx22700_get_tps (state, &p->u.ofdm);
 }
 
+static int cx22700_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
+{
+        struct cx22700_state* state = fe->demodulator_priv;
+
+        if (enable) {
+                return cx22700_writereg(state, 0x0a, 0x00);
+        } else {
+                return cx22700_writereg(state, 0x0a, 0x01);
+        }
+}
+
 static int cx22700_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings)
 {
         fesettings->min_delay_ms = 150;
@@ -413,6 +420,7 @@ static struct dvb_frontend_ops cx22700_ops = {
         .release = cx22700_release,
 
         .init = cx22700_init,
+        .i2c_gate_ctrl = cx22700_i2c_gate_ctrl,
 
         .set_frontend = cx22700_set_frontend,
         .get_frontend = cx22700_get_frontend,
diff --git a/drivers/media/dvb/frontends/cx22700.h b/drivers/media/dvb/frontends/cx22700.h
index c9145b45874b..dcd8979c1a15 100644
--- a/drivers/media/dvb/frontends/cx22700.h
+++ b/drivers/media/dvb/frontends/cx22700.h
@@ -29,10 +29,6 @@ struct cx22700_config
 {
         /* the demodulator's i2c address */
         u8 demod_address;
-
-        /* PLL maintenance */
-        int (*pll_init)(struct dvb_frontend* fe);
-        int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
 };
 
 extern struct dvb_frontend* cx22700_attach(const struct cx22700_config* config,