[media] stv0900: Multistream support

Multistream support for stv0900. For Netup Dual S2 CI with STV0900BAC/AAC.

Signed-off-by: Evgeny Plehov <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/dvb-frontends/stv0900_core.c

···
 	return locked;
 }
 
+static int stv0900_set_mis(struct stv0900_internal *intp,
+				enum fe_stv0900_demod_num demod, int mis)
+{
+	enum fe_stv0900_error error = STV0900_NO_ERROR;
+
+	dprintk("%s\n", __func__);
+
+	if (mis < 0 || mis > 255) {
+		dprintk("Disable MIS filtering\n");
+		stv0900_write_bits(intp, FILTER_EN, 0);
+	} else {
+		dprintk("Enable MIS filtering - %d\n", mis);
+		stv0900_write_bits(intp, FILTER_EN, 1);
+		stv0900_write_reg(intp, ISIENTRY, mis);
+		stv0900_write_reg(intp, ISIBITENA, 0xff);
+	}
+
+	return error;
+}
+
+
 static enum dvbfe_search stv0900_search(struct dvb_frontend *fe)
 {
 	struct stv0900_state *state = fe->demodulator_priv;
···
 
 	if (state->config->set_ts_params)
 		state->config->set_ts_params(fe, 0);
+
+	stv0900_set_mis(intp, demod, c->stream_id);
 
 	p_result.locked = FALSE;
 	p_search.path = demod;
···
 
 		if (err_stv0900)
 			goto error;
+
+		if (state->internal->chip_id >= 0x30)
+			state->frontend.ops.info.caps |= FE_CAN_MULTISTREAM;
 
 		break;
 	default:

drivers/media/dvb-frontends/stv0900_reg.h

···
 #define R0900_P1_PDELCTRL1 0xf550
 #define PDELCTRL1 REGx(R0900_P1_PDELCTRL1)
 #define F0900_P1_INV_MISMASK 0xf5500080
+#define INV_MISMASK FLDx(F0900_P1_INV_MISMASK)
 #define F0900_P1_FILTER_EN 0xf5500020
+#define FILTER_EN FLDx(F0900_P1_FILTER_EN)
 #define F0900_P1_EN_MIS00 0xf5500002
+#define EN_MIS00 FLDx(F0900_P1_EN_MIS00)
 #define F0900_P1_ALGOSWRST 0xf5500001
 #define ALGOSWRST FLDx(F0900_P1_ALGOSWRST)