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>

diff --git a/drivers/media/video/saa7134/saa7134-dvb.c b/drivers/media/video/saa7134/saa7134-dvb.c
index f95f5f2..07614a8 100644 (file)
--- 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};