diff options
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 4bc4f0174c28..87bee539f1a0 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -143,6 +143,7 @@ struct tegra_i2c_dev { int irq; bool irq_disabled; int is_dvc; + bool is_slave; struct completion msg_complete; int msg_err; u8 *msg_buf; @@ -358,6 +359,13 @@ static void tegra_dvc_init(struct tegra_i2c_dev *i2c_dev) dvc_writel(i2c_dev, val, DVC_CTRL_REG1); } +static void tegra_i2c_slave_init(struct tegra_i2c_dev *i2c_dev) +{ + u32 val = I2C_SL_CNFG_NEWSL | I2C_SL_CNFG_NACK; + + i2c_writel(i2c_dev, val, I2C_SL_CNFG); +} + static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev) { u32 val; @@ -391,6 +399,9 @@ static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev) 0 << I2C_FIFO_CONTROL_RX_TRIG_SHIFT; i2c_writel(i2c_dev, val, I2C_FIFO_CONTROL); + if (i2c_dev->is_slave) + tegra_i2c_slave_init(i2c_dev); + if (tegra_i2c_flush_fifos(i2c_dev)) err = -ETIMEDOUT; @@ -758,6 +769,9 @@ static int tegra_i2c_probe(struct platform_device *pdev) i2c_dev->is_dvc = plat->is_dvc; init_completion(&i2c_dev->msg_complete); + if (irq == INT_I2C || irq == INT_I2C3) + i2c_dev->is_slave = true; + platform_set_drvdata(pdev, i2c_dev); ret = tegra_i2c_init(i2c_dev); |