From da44bdeb95ea75eec263f42f7703bbf14f004f6a Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 6 Dec 2009 17:06:22 +0100 Subject: i2c: Bus drivers don't have to support I2C_M_REV_DIR_ADDR I2C bus drivers don't have to support I2C_M_REV_DIR_ADDR. It is a deviation from the I2C specification, which only makes sense to implement when really needed. Signed-off-by: Jean Delvare Cc: Ben Dooks --- drivers/i2c/busses/i2c-iop3xx.c | 6 ------ drivers/i2c/busses/i2c-mv64xxx.c | 3 --- drivers/i2c/busses/i2c-powermac.c | 2 -- 3 files changed, 11 deletions(-) (limited to 'drivers/i2c/busses') diff --git a/drivers/i2c/busses/i2c-iop3xx.c b/drivers/i2c/busses/i2c-iop3xx.c index a75c75e77b9..5901707fc66 100644 --- a/drivers/i2c/busses/i2c-iop3xx.c +++ b/drivers/i2c/busses/i2c-iop3xx.c @@ -56,12 +56,6 @@ iic_cook_addr(struct i2c_msg *msg) if (msg->flags & I2C_M_RD) addr |= 1; - /* - * Read or Write? - */ - if (msg->flags & I2C_M_REV_DIR_ADDR) - addr ^= 1; - return addr; } diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c index bbab0e16663..ed387ffa473 100644 --- a/drivers/i2c/busses/i2c-mv64xxx.c +++ b/drivers/i2c/busses/i2c-mv64xxx.c @@ -338,9 +338,6 @@ mv64xxx_i2c_prepare_for_io(struct mv64xxx_i2c_data *drv_data, if (msg->flags & I2C_M_RD) dir = 1; - if (msg->flags & I2C_M_REV_DIR_ADDR) - dir ^= 1; - if (msg->flags & I2C_M_TEN) { drv_data->addr1 = 0xf0 | (((u32)msg->addr & 0x300) >> 7) | dir; drv_data->addr2 = (u32)msg->addr & 0xff; diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c index 02b02413850..1c440a70ec6 100644 --- a/drivers/i2c/busses/i2c-powermac.c +++ b/drivers/i2c/busses/i2c-powermac.c @@ -162,8 +162,6 @@ static int i2c_powermac_master_xfer( struct i2c_adapter *adap, return -EINVAL; read = (msgs->flags & I2C_M_RD) != 0; addrdir = (msgs->addr << 1) | read; - if (msgs->flags & I2C_M_REV_DIR_ADDR) - addrdir ^= 1; rc = pmac_i2c_open(bus, 0); if (rc) { -- cgit v1.2.3