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-rw-r--r--drivers/media/video/au0828/au0828-i2c.c22
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);