V4L/DVB (5777): Dvb-pll digitv dvb-usb: Eliminate last user of dvb_pll_configure

The last user of dvb_pll_configure was the dvb-usb function
dvb_usb_tuner_calc_regs(), which was nothing more than a wrapper around
dvb_pll_configure().  It's just a copy of the functionality provided by
the tuner_ops calc_regs method, and can be deleted.

There were two users of dvb_usb_tuner_calc_regs().
One was dvb_usb_tuner_set_params_i2c(), which is converted to use
fe->ops.tuner_ops.calc_regs().

The other was the digitv driver.  This driver can use one of two demods,
mt352 or nxt6000.  

For the mt352, the driver would set tuner_ops.calc_regs to 
dvb_usb_tuner_calc_regs().  

We can just attach dvb_pll and use the tuner_ops.calc_regs() provided by 
that module. For the nxt600, the driver would set tuner_ops.set_params 
to digitv_nxt6000_tuner_set_params.  

That function would in turn use dvb_usb_tuner_calc_regs().

We convert it to use tuner_ops.calc_regs() instead, and use 
dvb_pll_attach.

The digitv_tuner_attach() needs to know which frontend was attached by 
digitv_frontend_attach(), since the nxt6000 needs tuner_ops.set_params() 
to be overridden with digitv_nxt6000_tuner_set_params().

So, to do this a digitv_state that says which frontend was used is added 
to the dvb_usb_device private state field.

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

1 files changed, 1 insertions, 21 deletions

diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c b/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c
index 4c80823..5792951 100644
--- a/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-i2c.c
@@ -78,26 +78,6 @@ int dvb_usb_tuner_init_i2c(struct dvb_frontend *fe)
 }
 EXPORT_SYMBOL(dvb_usb_tuner_init_i2c);
 
-int dvb_usb_tuner_calc_regs(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep, u8 *b, int buf_len)
-{
-	struct dvb_usb_adapter *adap = fe->dvb->priv;
-
-	if (buf_len != 5)
-		return -EINVAL;
-	if (adap->pll_desc == NULL)
-		return 0;
-
-	deb_pll("pll addr: %x, freq: %d %p\n",adap->pll_addr, fep->frequency, adap->pll_desc);
-
-	b[0] = adap->pll_addr;
-	dvb_pll_configure(adap->pll_desc, &b[1], fep);
-
-	deb_pll("pll-buf: %x %x %x %x %x\n",b[0],b[1],b[2],b[3],b[4]);
-
-	return 5;
-}
-EXPORT_SYMBOL(dvb_usb_tuner_calc_regs);
-
 int dvb_usb_tuner_set_params_i2c(struct dvb_frontend *fe, struct dvb_frontend_parameters *fep)
 {
 	struct dvb_usb_adapter *adap = fe->dvb->priv;
@@ -105,7 +85,7 @@ int dvb_usb_tuner_set_params_i2c(struct dvb_frontend *fe, struct dvb_frontend_pa
 	u8 b[5];
 	struct i2c_msg msg = { .addr = adap->pll_addr, .flags = 0, .buf = &b[1], .len = 4 };
 
-	dvb_usb_tuner_calc_regs(fe,fep,b,5);
+	fe->ops.tuner_ops.calc_regs(fe, fep, b, sizeof(b));
 
 	if (adap->tuner_pass_ctrl)
 		adap->tuner_pass_ctrl(fe, 1, adap->pll_addr);