diff --git a/drivers/media/dvb/frontends/mt312.c b/drivers/media/dvb/frontends/mt312.c
index e17a36180f9c2160f1f077eefc0eef77499c961e..081ca3398c76b074012f4fa99d7f41910d30e165 100644
--- a/drivers/media/dvb/frontends/mt312.c
+++ b/drivers/media/dvb/frontends/mt312.c
@@ -422,11 +422,16 @@ static int mt312_set_voltage(struct dvb_frontend *fe, const fe_sec_voltage_t v)
 {
 	struct mt312_state *state = fe->demodulator_priv;
 	const u8 volt_tab[3] = { 0x00, 0x40, 0x00 };
+	u8 val;
 
 	if (v > SEC_VOLTAGE_OFF)
 		return -EINVAL;
 
-	return mt312_writereg(state, DISEQC_MODE, volt_tab[v]);
+	val = volt_tab[v];
+	if (state->config->voltage_inverted)
+		val ^= 0x40;
+
+	return mt312_writereg(state, DISEQC_MODE, val);
 }
 
 static int mt312_read_status(struct dvb_frontend *fe, fe_status_t *s)
diff --git a/drivers/media/dvb/frontends/mt312.h b/drivers/media/dvb/frontends/mt312.h
index afe24fd822bd6123516e7ec956d8af7043011f8b..96338f0c4dd47268d60727b9a35b251d62b469ad 100644
--- a/drivers/media/dvb/frontends/mt312.h
+++ b/drivers/media/dvb/frontends/mt312.h
@@ -31,6 +31,9 @@
 struct mt312_config {
 	/* the demodulator's i2c address */
 	u8 demod_address;
+
+	/* inverted voltage setting */
+	int voltage_inverted:1;
 };
 
 #if defined(CONFIG_DVB_MT312) || (defined(CONFIG_DVB_MT312_MODULE) && defined(MODULE))