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Commit 2078cf3b authored by Erik Gilling's avatar Erik Gilling Committed by Ben Dooks
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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: default avatarErik Gilling <konkers@android.com>
Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent cb63c62d

drivers/i2c/busses/i2c-tegra.c

+2 −2
Original line number Diff line number Diff line
@@ -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);