i2c: cpm: use new 8 bit address helper function

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
diff --git a/drivers/i2c/busses/i2c-cpm.c b/drivers/i2c/busses/i2c-cpm.c
index 714bdc8..b6d2821 100644
--- a/drivers/i2c/busses/i2c-cpm.c
+++ b/drivers/i2c/busses/i2c-cpm.c
@@ -197,9 +197,7 @@
 	tbdf = cpm->tbase + tx;
 	rbdf = cpm->rbase + rx;
 
-	addr = pmsg->addr << 1;
-	if (pmsg->flags & I2C_M_RD)
-		addr |= 1;
+	addr = i2c_8bit_addr_from_msg(pmsg);
 
 	tb = cpm->txbuf[tx];
 	rb = cpm->rxbuf[rx];