leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

i2c: tegra: Remove unnecessary write to INT_STATUS

Browse Source 
The write is not necessary and may cause the I2C controller to misbehave.
With this fix, I2C on Tegra30 works (at least, running i2cdump repeatedly
on the WM8903 on Cardhu's I2C5/DVC bus).

Signed-off-by: Alok Chauhan <alokc@nvidia.com>
[swarren: Reworded commit description]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
This commit is contained in:
Alok Chauhan 2012-02-03 14:10:17 +00:00 committed by Wolfram Sang
parent bb79a0798d
commit bf6c2de11c
1 changed files with 0 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/i2c/busses/i2c-tegra.c
View File

@ -457,7 +457,6 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
int ret;
tegra_i2c_flush_fifos(i2c_dev);
i2c_writel(i2c_dev, 0xFF, I2C_INT_STATUS);
if (msg->len == 0)
return -EINVAL;