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 <khali@linux-fr.org>
Cc: Ben Dooks <ben-linux@fluff.org>
diff --git a/drivers/i2c/busses/i2c-iop3xx.c b/drivers/i2c/busses/i2c-iop3xx.c
index a75c75e..5901707 100644
--- a/drivers/i2c/busses/i2c-iop3xx.c
+++ b/drivers/i2c/busses/i2c-iop3xx.c
@@ -56,12 +56,6 @@
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 bbab0e1..ed387ff 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -338,9 +338,6 @@
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 02b0241..1c440a7 100644
--- a/drivers/i2c/busses/i2c-powermac.c
+++ b/drivers/i2c/busses/i2c-powermac.c
@@ -162,8 +162,6 @@
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) {
