V4L/DVB (13591): add support for IR on FlyDVB Trio (saa7134)

saa7134: Add support for IR reciever on card LifeView FlyDVB Trio

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[mchehab@redhat.com: CodingStyle fixes and ported upstream]
Tested-by: Petr Fiala <petr.fiala@gmail.com>
Signed-off-by: Lukas Karas <lukas.karas@centrum.cz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/media/video/saa7134/saa7134-cards.c b/drivers/media/video/saa7134/saa7134-cards.c
index 7e40d6d99dd0..03f572708b85 100644
--- a/drivers/media/video/saa7134/saa7134-cards.c
+++ b/drivers/media/video/saa7134/saa7134-cards.c
@@ -7211,9 +7211,31 @@ int saa7134_board_init2(struct saa7134_dev *dev)
         }
         case SAA7134_BOARD_FLYDVB_TRIO:
         {
+                u8 temp = 0;
+                int rc;
                 u8 data[] = { 0x3c, 0x33, 0x62};
                 struct i2c_msg msg = {.addr=0x09, .flags=0, .buf=data, .len = sizeof(data)};
                 i2c_transfer(&dev->i2c_adap, &msg, 1);
+
+                /*
+                 * send weak up message to pic16C505 chip
+                 * @ LifeView FlyDVB Trio
+                 */
+                msg.buf = &temp;
+                msg.addr = 0x0b;
+                msg.len = 1;
+                if (1 != i2c_transfer(&dev->i2c_adap, &msg, 1)) {
+                        printk(KERN_WARNING "%s: send wake up byte to pic16C505"
+                                        "(IR chip) failed\n", dev->name);
+                } else {
+                        msg.flags = I2C_M_RD;
+                        rc = i2c_transfer(&dev->i2c_adap, &msg, 1);
+                        printk(KERN_INFO "%s: probe IR chip @ i2c 0x%02x: %s\n",
+                                   dev->name, msg.addr,
+                                   (1 == rc) ? "yes" : "no");
+                        if (rc == 1)
+                                dev->has_remote = SAA7134_REMOTE_I2C;
+                }
                 break;
         }
         case SAA7134_BOARD_ADS_DUO_CARDBUS_PTV331: