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i2c: tegra: Remove unnecessary write to INT_STATUS 

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>
hifive-unleashed-5.1
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
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drivers/i2c/busses/i2c-tegra.c
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@ -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;