diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c index 03dbff3597a2..cb37bb8f8e41 100644 --- a/drivers/mfd/twl6040.c +++ b/drivers/mfd/twl6040.c @@ -87,8 +87,13 @@ static struct reg_default twl6040_defaults[] = { }; static struct reg_default twl6040_patch[] = { - /* Select I2C bus access to dual access registers */ - { TWL6040_REG_ACCCTL, 0x09 }, + /* + * Select I2C bus access to dual access registers + * Interrupt register is cleared on read + * Select fast mode for i2c (400KHz) + */ + { TWL6040_REG_ACCCTL, + TWL6040_I2CSEL | TWL6040_INTCLRMODE | TWL6040_I2CMODE(1) }, }; diff --git a/include/linux/mfd/twl6040.h b/include/linux/mfd/twl6040.h index 81f639bc1ae6..a69d16b30c18 100644 --- a/include/linux/mfd/twl6040.h +++ b/include/linux/mfd/twl6040.h @@ -157,6 +157,7 @@ #define TWL6040_I2CSEL 0x01 #define TWL6040_RESETSPLIT 0x04 #define TWL6040_INTCLRMODE 0x08 +#define TWL6040_I2CMODE(x) ((x & 0x3) << 4) /* STATUS (0x2E) fields */