Commit bf6c2de1 authored by Alok Chauhan's avatar Alok Chauhan Committed by Wolfram Sang
Browse files

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: default avatarAlok Chauhan <alokc@nvidia.com>
[swarren: Reworded commit description]
Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
Signed-off-by: default avatarWolfram Sang <w.sang@pengutronix.de>
parent bb79a079

drivers/i2c/busses/i2c-tegra.c

+0 −1
Original line number Diff line number Diff line
@@ -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;