i2c-pxa: Support new-style I2C drivers

Signed-off-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

drivers/i2c/busses/i2c-pxa.c

@@ -921,7 +921,14 @@ static int i2c_pxa_probe(struct platform_device *dev)
 		i2c->adap.class = plat->class;
 	}
 
-	ret = i2c_add_adapter(&i2c->adap);
+	/*
+	 * If "dev->id" is negative we consider it as zero.
+	 * The reason to do so is to avoid sysfs names that only make
+	 * sense when there are multiple adapters.
+	 */
+	i2c->adap.nr = dev->id >= 0 ? dev->id : 0;
+
+	ret = i2c_add_numbered_adapter(&i2c->adap);
 	if (ret < 0) {
 		printk(KERN_INFO "I2C: Failed to add bus\n");
 		goto eadapt;