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i2c: tegra: fix repeated start handling 

A repeated start should be used for all but the last msg in an xfer.  The
NOSTART flag is for skipping the START frame (addr/rw)

Signed-off-by: Erik Gilling <konkers@android.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Erik Gilling 2011-04-25 15:32:26 -06:00 committed by Ben Dooks
parent cb63c62d8e
commit 2078cf3b22
1 changed files with 2 additions and 2 deletions
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4
drivers/i2c/busses/i2c-tegra.c
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@ -451,12 +451,12 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
packet_header = msg->addr << I2C_HEADER_SLAVE_ADDR_SHIFT;
packet_header |= I2C_HEADER_IE_ENABLE;
if (!stop)
packet_header |= I2C_HEADER_REPEAT_START;
if (msg->flags & I2C_M_TEN)
packet_header |= I2C_HEADER_10BIT_ADDR;
if (msg->flags & I2C_M_IGNORE_NAK)
packet_header |= I2C_HEADER_CONT_ON_NAK;
if (msg->flags & I2C_M_NOSTART)
packet_header |= I2C_HEADER_REPEAT_START;
if (msg->flags & I2C_M_RD)
packet_header |= I2C_HEADER_READ;
i2c_writel(i2c_dev, packet_header, I2C_TX_FIFO);