i2c: busses: convert to devm_platform_ioremap_resource

use devm_platform_ioremap_resource() to simplify code, it
contains platform_get_resource and devm_ioremap_resource.

Reviewed-by: Barry Song <baohua@kernel.org>
Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Robert Richter <rrichter@marvell.com>
Acked-by: Thor Thayer <thor.thayer@linux.intel.com>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
diff --git a/drivers/i2c/busses/i2c-owl.c b/drivers/i2c/busses/i2c-owl.c
index 3ab8be6..fba6efc 100644
--- a/drivers/i2c/busses/i2c-owl.c
+++ b/drivers/i2c/busses/i2c-owl.c
@@ -396,15 +396,13 @@ static int owl_i2c_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct owl_i2c_dev *i2c_dev;
-	struct resource *res;
 	int ret, irq;
 
 	i2c_dev = devm_kzalloc(dev, sizeof(*i2c_dev), GFP_KERNEL);
 	if (!i2c_dev)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	i2c_dev->base = devm_ioremap_resource(dev, res);
+	i2c_dev->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(i2c_dev->base))
 		return PTR_ERR(i2c_dev->base);