V4L/DVB (12485): zl10353: correct implementation of FE_READ_UNCORRECTED_BLOCKS

Makes zl10353 a bit more DVB API compliant:
FE_READ_UNCORRECTED_BLOCKS - keep a counter of UNC blocks
FE_GET_FRONTEND - return last set frequency instead of zero

Signed-off-by: Aleksandr V. Piskunov <alexandr.v.piskunov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/frontends/zl10353.c

@@ -38,6 +38,8 @@ struct zl10353_state {
 	struct zl10353_config config;
 
 	enum fe_bandwidth bandwidth;
+       u32 ucblocks;
+       u32 frequency;
 };
 
 static int debug;
@@ -199,6 +201,8 @@ static int zl10353_set_parameters(struct dvb_frontend *fe,
 	u16 tps = 0;
 	struct dvb_ofdm_parameters *op = &param->u.ofdm;
 
+       state->frequency = param->frequency;
+
 	zl10353_single_write(fe, RESET, 0x80);
 	udelay(200);
 	zl10353_single_write(fe, 0xEA, 0x01);
@@ -464,7 +468,7 @@ static int zl10353_get_parameters(struct dvb_frontend *fe,
 		break;
 	}
 
-	param->frequency = 0;
+       param->frequency = state->frequency;
 	op->bandwidth = state->bandwidth;
 	param->inversion = INVERSION_AUTO;
 
@@ -542,9 +546,13 @@ static int zl10353_read_snr(struct dvb_frontend *fe, u16 *snr)
 static int zl10353_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
 {
 	struct zl10353_state *state = fe->demodulator_priv;
+       u32 ubl = 0;
+
+       ubl = zl10353_read_register(state, RS_UBC_1) << 8 |
+	     zl10353_read_register(state, RS_UBC_0);
 
-	*ucblocks = zl10353_read_register(state, RS_UBC_1) << 8 |
-		    zl10353_read_register(state, RS_UBC_0);
+       state->ucblocks += ubl;
+       *ucblocks = state->ucblocks;
 
 	return 0;
 }