From: Oliver Endriss <[email protected]>
TT DVB-C 2300 runs at 137 kHz I2C speed. short_delay mode did not work
reliably on fast machines with that speed. Increased max loop count from
20 to 50. Moved dummy access out of the loop.
Signed-off-by: Oliver Endriss <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
---
drivers/media/common/saa7146_i2c.c | 10 ++++------
1 files changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/media/common/saa7146_i2c.c b/drivers/media/common/saa7146_i2c.c
index d9953f7..5297a36 100644
--- a/drivers/media/common/saa7146_i2c.c
+++ b/drivers/media/common/saa7146_i2c.c
@@ -217,11 +217,9 @@ static int saa7146_i2c_writeout(struct s
}
/* wait until we get a transfer done or error */
timeout = jiffies + HZ/100 + 1; /* 10ms */
+ /* first read usually delivers bogus results... */
+ saa7146_i2c_status(dev);
while(1) {
- /**
- * first read usually delivers bogus results...
- */
- saa7146_i2c_status(dev);
status = saa7146_i2c_status(dev);
if ((status & 0x3) != 1)
break;
@@ -232,10 +230,10 @@ static int saa7146_i2c_writeout(struct s
DEB_I2C(("saa7146_i2c_writeout: timed out waiting for end of xfer\n"));
return -EIO;
}
- if ((++trial < 20) && short_delay)
+ if (++trial < 50 && short_delay)
udelay(10);
else
- msleep(1);
+ msleep(1);
}
}
-
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