diff options
Diffstat (limited to 'drivers/i2c/mxc_i2c.c')
| -rw-r--r-- | drivers/i2c/mxc_i2c.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c index e328220..2bf4e01 100644 --- a/drivers/i2c/mxc_i2c.c +++ b/drivers/i2c/mxc_i2c.c @@ -246,6 +246,17 @@ static void i2c_imx_stop(struct mxc_i2c_regs *i2c_regs) } /* + * Stub implementations for outer i2c slave operations + * Any board has special requirement (i.mx6slevk) can + * overwrite the function + */ +void __i2c_force_reset_slave(void) +{ +} +void i2c_force_reset_slave(void) + __attribute__((weak, alias("__i2c_force_reset_slave"))); + +/* * Send start signal, chip address and * write register address */ @@ -255,6 +266,9 @@ static int i2c_init_transfer_(struct mxc_i2c_regs *i2c_regs, unsigned int temp; int ret; + /* Reset i2c slave */ + i2c_force_reset_slave(); + /* Enable I2C controller */ #ifdef I2C_QUIRK_REG if (readb(&i2c_regs->i2cr) & I2CR_IDIS) { |