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