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: Laxman Dewangan <[email protected]>
---
drivers/i2c/busses/i2c-tegra.c | 11 +++++++----
1 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 55e5ea6..18067b3 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -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 = {
--
1.7.1.1
--
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