diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/au0828/au0828-i2c.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/media/video/au0828/au0828-i2c.c b/drivers/media/video/au0828/au0828-i2c.c index d618fbaade1..ee3e3040d54 100644 --- a/drivers/media/video/au0828/au0828-i2c.c +++ b/drivers/media/video/au0828/au0828-i2c.c @@ -140,7 +140,16 @@ static int i2c_sendbytes(struct i2c_adapter *i2c_adap, dprintk(4, "%s()\n", __func__); au0828_write(dev, REG_2FF, 0x01); - au0828_write(dev, REG_202, 0x07); + + /* FIXME: There is a problem with i2c communications with xc5000 that + requires us to slow down the i2c clock until we have a better + strategy (such as using the secondary i2c bus to do firmware + loading */ + if ((msg->addr << 1) == 0xc2) { + au0828_write(dev, REG_202, 0x40); + } else { + au0828_write(dev, REG_202, 0x07); + } /* Hardware needs 8 bit addresses */ au0828_write(dev, REG_203, msg->addr << 1); @@ -191,7 +200,16 @@ static int i2c_readbytes(struct i2c_adapter *i2c_adap, dprintk(4, "%s()\n", __func__); au0828_write(dev, REG_2FF, 0x01); - au0828_write(dev, REG_202, 0x07); + + /* FIXME: There is a problem with i2c communications with xc5000 that + requires us to slow down the i2c clock until we have a better + strategy (such as using the secondary i2c bus to do firmware + loading */ + if ((msg->addr << 1) == 0xc2) { + au0828_write(dev, REG_202, 0x40); + } else { + au0828_write(dev, REG_202, 0x07); + } /* Hardware needs 8 bit addresses */ au0828_write(dev, REG_203, msg->addr << 1); |