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Commit 353f56b5 authored by Laxman Dewangan's avatar Laxman Dewangan Committed by Wolfram Sang
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i2c: tegra: fix 10bit address configuration 



The slave address of device to be configured in packet
header as follows:
    7 bit address: PacketHeader3[7:1]
    10 bit address: PacketHeader3[9:0]

Fixing the code to make packet header3 properly.

Signed-off-by: default avatarLaxman Dewangan <ldewangan@nvidia.com>
Acked-by: default avatarJean Delvare <khali@linux-fr.org>
Signed-off-by: default avatarWolfram Sang <w.sang@pengutronix.de>
parent b4f0b74e

drivers/i2c/busses/i2c-tegra.c

+7 −4
Original line number Diff line number Diff line
@@ -476,12 +476,15 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev, 
	packet_header = msg->len - 1;

	i2c_writel(i2c_dev, packet_header, I2C_TX_FIFO);



	packet_header = msg->addr << I2C_HEADER_SLAVE_ADDR_SHIFT;

	packet_header |= I2C_HEADER_IE_ENABLE;

	packet_header = I2C_HEADER_IE_ENABLE;

	if (!stop)

		packet_header |= I2C_HEADER_REPEAT_START;

	if (msg->flags & I2C_M_TEN)

	if (msg->flags & I2C_M_TEN) {

		packet_header |= msg->addr;

		packet_header |= I2C_HEADER_10BIT_ADDR;

	} else {

		packet_header |= msg->addr << I2C_HEADER_SLAVE_ADDR_SHIFT;

	}

	if (msg->flags & I2C_M_IGNORE_NAK)

		packet_header |= I2C_HEADER_CONT_ON_NAK;

	if (msg->flags & I2C_M_RD)
@@ -557,7 +560,7 @@ static int tegra_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], 


static u32 tegra_i2c_func(struct i2c_adapter *adap)

{

	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;

	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR;

}



static const struct i2c_algorithm tegra_i2c_algo = {