diff options
| author | Jay Cheng <jacheng@nvidia.com> | 2010-11-26 12:08:39 -0500 |
|---|---|---|
| committer | Todd Poynor <toddpoynor@google.com> | 2010-11-30 15:25:04 -0800 |
| commit | 61186dc145606f61c5988ccc3c5abb24bf27b543 (patch) | |
| tree | fc2c477c31d864e45abb8af0a8b0e6c9489eb446 /drivers/i2c | |
| parent | 888f2866312dcbce0f0d1ebaefa3bce895a916a4 (diff) | |
[tegra i2c] add de-bounce cycles.
Change-Id: I3549105bb1d1a7803a300849ddba9c17dad1efba
Signed-off-by: Ken Radtke <kradtke@nvidia.com>
Diffstat (limited to 'drivers/i2c')
| -rwxr-xr-x[-rw-r--r--] | drivers/i2c/busses/i2c-tegra.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 999ae2d30e30..b7481f496ec3 100644..100755 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -35,6 +35,7 @@ #define BYTES_PER_FIFO_WORD 4 #define I2C_CNFG 0x000 +#define I2C_CNFG_DEBOUNCE_CNT_SHIFT 12 #define I2C_CNFG_PACKET_MODE_EN (1<<10) #define I2C_CNFG_NEW_MASTER_FSM (1<<11) #define I2C_STATUS 0x01C @@ -312,7 +313,7 @@ static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev) if (i2c_dev->is_dvc) tegra_dvc_init(i2c_dev); - val = I2C_CNFG_NEW_MASTER_FSM | I2C_CNFG_PACKET_MODE_EN; + val = I2C_CNFG_NEW_MASTER_FSM | I2C_CNFG_PACKET_MODE_EN | (0x2 << I2C_CNFG_DEBOUNCE_CNT_SHIFT); i2c_writel(i2c_dev, val, I2C_CNFG); i2c_writel(i2c_dev, 0, I2C_INT_MASK); tegra_i2c_set_clk(i2c_dev, i2c_dev->last_bus_clk); |