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>

1 files changed, 30 insertions, 2 deletions

diff --git a/drivers/media/video/saa7134/saa7134-dvb.c b/drivers/media/video/saa7134/saa7134-dvb.c
index fb741fa465a5..f72a91f30259 100644
--- 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;