diff options
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index e6a2e27b9cac..bdb1399fd157 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -115,6 +115,9 @@ #define I2C_HEADER_SLAVE_ADDR_SHIFT 1 #define I2C_BUS_CLEAR_CNFG 0x084 +#define I2C_BC_SCLK_THRESHOLD (9<<16) +#define I2C_BC_STOP_COND (1<<2) +#define I2C_BC_TERMINATE (1<<1) #define I2C_BC_ENABLE (1<<0) #define I2C_BUS_CLEAR_STATUS 0x088 @@ -900,7 +903,11 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev, if (i2c_dev->msg_err == I2C_ERR_ARBITRATION_LOST) { if (i2c_dev->chipdata->has_hw_arb_support) { INIT_COMPLETION(i2c_dev->msg_complete); - i2c_writel(i2c_dev, I2C_BC_ENABLE, I2C_BUS_CLEAR_CNFG); + i2c_writel(i2c_dev, I2C_BC_ENABLE + | I2C_BC_SCLK_THRESHOLD + | I2C_BC_STOP_COND + | I2C_BC_TERMINATE + , I2C_BUS_CLEAR_CNFG); tegra_i2c_unmask_irq(i2c_dev, I2C_INT_BUS_CLEAR_DONE); wait_for_completion_timeout(&i2c_dev->msg_complete, |