i2c: mxs: use devm_platform_ioremap_resource() to simplify code

Use the new helper devm_platform_ioremap_resource() which wraps the
platform_get_resource() and devm_ioremap_resource() together, to
simplify the code.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-mxs.c

@@ -802,7 +802,6 @@ static int mxs_i2c_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct mxs_i2c_dev *i2c;
 	struct i2c_adapter *adap;
-	struct resource *res;
 	int err, irq;
 
 	i2c = devm_kzalloc(dev, sizeof(*i2c), GFP_KERNEL);
@@ -814,8 +813,7 @@ static int mxs_i2c_probe(struct platform_device *pdev)
 		i2c->dev_type = device_id->driver_data;
 	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	i2c->regs = devm_ioremap_resource(&pdev->dev, res);
+	i2c->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(i2c->regs))
 		return PTR_ERR(i2c->regs);