V4L/DVB (7395): saa7134: start 2nd LND supply of Medion cards only if needed

The ISL6405 LNB supply is used on several Creatix / Medion cards. But only
the MD8800 needs its second section. So don't start it unless it is needed.

Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 7 insertions, 5 deletions

diff --git a/drivers/media/video/saa7134/saa7134-dvb.c b/drivers/media/video/saa7134/saa7134-dvb.c
index f95f5f2fbf72..07614a8d8949 100644
--- a/drivers/media/video/saa7134/saa7134-dvb.c
+++ b/drivers/media/video/saa7134/saa7134-dvb.c
@@ -1052,10 +1052,12 @@ static int dvb_init(struct saa7134_dev *dev)
                                                         &dev->i2c_adap, 0x08, 0, 0) == NULL)
                                                 wprintk("%s: Medion Quadro, no ISL6405 "
                                                         "found !\n", __func__);
-                                        /* fire up the 2nd section of the LNB supply since we can't do
-                                        this from the other section */
-                                        msg.buf = &data;
-                                        i2c_transfer(&dev->i2c_adap, &msg, 1);
+                                        if (dev_id == 0x07) {
+                                                /* fire up the 2nd section of the LNB supply since
+                                                   we can't do this from the other section */
+                                                msg.buf = &data;
+                                                i2c_transfer(&dev->i2c_adap, &msg, 1);
+                                        }
                                         fe->ops.i2c_gate_ctrl(fe, 0);
                                         dev->original_set_voltage = fe->ops.set_voltage;
                                         fe->ops.set_voltage = md8800_set_voltage;
@@ -1248,7 +1250,7 @@ static int dvb_fini(struct saa7134_dev *dev)
                 /* otherwise we don't detect the tuner on next insmod */
                 saa7134_i2c_call_clients(dev, TUNER_SET_CONFIG, &tda9887_cfg);
         } else if (dev->board == SAA7134_BOARD_MEDION_MD8800_QUADRO) {
-                if ((dev->eedata[2] != 0x08) && use_frontend) {
+                if ((dev->eedata[2] == 0x07) && use_frontend) {
                         /* turn off the 2nd lnb supply */
                         u8 data = 0x80;
                         struct i2c_msg msg = {.addr = 0x08, .buf = &data, .flags = 0, .len = 1};