V4L/DVB (4702): Fix: set antenna input for DVB-T for Asus P7131 Dual hybrid

This patch forces the correct antenna input input in DVB-T
mode for this card.

Signed-off-by: Hermann Pitton <hermann-pitton@arcor.de>
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 fb741fa..f72a91f 100644 (file)
--- a/drivers/media/video/saa7134/saa7134-dvb.c
+++ b/drivers/media/video/saa7134/saa7134-dvb.c
@@ -874,6 +874,34 @@ static struct tda1004x_config philips_tiger_config = {
 
 /* ------------------------------------------------------------------ */
 
+static int asus_p7131_dual_tuner_init(struct dvb_frontend *fe)
+{
+       struct saa7134_dev *dev = fe->dvb->priv;
+       static u8 data[] = { 0x3c, 0x33, 0x6a};
+       struct i2c_msg msg = {.addr=0x08, .flags=0, .buf=data, .len = sizeof(data)};
+
+       if (i2c_transfer(&dev->i2c_adap, &msg, 1) != 1)
+               return -EIO;
+       /* make sure the DVB-T antenna input is set */
+       saa_setl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x0200000);
+       return 0;
+}
+
+static int asus_p7131_dual_tuner_sleep(struct dvb_frontend *fe)
+{
+       struct saa7134_dev *dev = fe->dvb->priv;
+       static u8 data[] = { 0x3c, 0x33, 0x68};
+       struct i2c_msg msg = {.addr=0x08, .flags=0, .buf=data, .len = sizeof(data)};
+
+       i2c_transfer(&dev->i2c_adap, &msg, 1);
+       philips_tda827xa_tuner_sleep( 0x61, fe);
+       /* reset antenna inputs for analog usage */
+       saa_clearl(SAA7134_GPIO_GPSTATUS0 >> 2, 0x0200000);
+       return 0;
+}
+
+/* ------------------------------------------------------------------ */
+
 static int lifeview_trio_tuner_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params)
 {
        int ret;
@@ -1148,8 +1176,8 @@ static int dvb_init(struct saa7134_dev *dev)
                                               &philips_tiger_config,
                                               &dev->i2c_adap);
                if (dev->dvb.frontend) {
-                       dev->dvb.frontend->ops.tuner_ops.init = philips_tiger_tuner_init;
-                       dev->dvb.frontend->ops.tuner_ops.sleep = philips_tiger_tuner_sleep;
+                       dev->dvb.frontend->ops.tuner_ops.init = asus_p7131_dual_tuner_init;
+                       dev->dvb.frontend->ops.tuner_ops.sleep = asus_p7131_dual_tuner_sleep;
                        dev->dvb.frontend->ops.tuner_ops.set_params = philips_tiger_tuner_set_params;
                }
                break;