[media] dvb: simplify get_tune_settings() struct

In the past, dvb_frontent_parameters were passed inside the
struct where get_tuner_settings should store their result.

This is not needed anymore, as all parameters needed are stored
already at the fe property cache. So, use it, where needed.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/frontends/s5h1420.c b/drivers/media/dvb/frontends/s5h1420.c
index 639e13f..9a65a7f 100644
--- a/drivers/media/dvb/frontends/s5h1420.c
+++ b/drivers/media/dvb/frontends/s5h1420.c
@@ -639,7 +639,6 @@
 	dprintk("enter %s\n", __func__);
 
 	/* check if we should do a fast-tune */
-	memcpy(&fesettings.parameters, p, sizeof(struct dtv_frontend_properties));
 	s5h1420_get_tune_settings(fe, &fesettings);
 	frequency_delta = p->frequency - state->tunedfreq;
 	if ((frequency_delta > -fesettings.max_drift) &&
@@ -782,29 +781,30 @@
 static int s5h1420_get_tune_settings(struct dvb_frontend* fe,
 				     struct dvb_frontend_tune_settings* fesettings)
 {
-	if (fesettings->parameters.u.qpsk.symbol_rate > 20000000) {
+	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
+	if (p->symbol_rate > 20000000) {
 		fesettings->min_delay_ms = 50;
 		fesettings->step_size = 2000;
 		fesettings->max_drift = 8000;
-	} else if (fesettings->parameters.u.qpsk.symbol_rate > 12000000) {
+	} else if (p->symbol_rate > 12000000) {
 		fesettings->min_delay_ms = 100;
 		fesettings->step_size = 1500;
 		fesettings->max_drift = 9000;
-	} else if (fesettings->parameters.u.qpsk.symbol_rate > 8000000) {
+	} else if (p->symbol_rate > 8000000) {
 		fesettings->min_delay_ms = 100;
 		fesettings->step_size = 1000;
 		fesettings->max_drift = 8000;
-	} else if (fesettings->parameters.u.qpsk.symbol_rate > 4000000) {
+	} else if (p->symbol_rate > 4000000) {
 		fesettings->min_delay_ms = 100;
 		fesettings->step_size = 500;
 		fesettings->max_drift = 7000;
-	} else if (fesettings->parameters.u.qpsk.symbol_rate > 2000000) {
+	} else if (p->symbol_rate > 2000000) {
 		fesettings->min_delay_ms = 200;
-		fesettings->step_size = (fesettings->parameters.u.qpsk.symbol_rate / 8000);
+		fesettings->step_size = (p->symbol_rate / 8000);
 		fesettings->max_drift = 14 * fesettings->step_size;
 	} else {
 		fesettings->min_delay_ms = 200;
-		fesettings->step_size = (fesettings->parameters.u.qpsk.symbol_rate / 8000);
+		fesettings->step_size = (p->symbol_rate / 8000);
 		fesettings->max_drift = 18 * fesettings->step_size;
 	}