devm_ioremap_resources() automatically requests resources and devm_ wrappers
do better error handling and unmapping of the I/O region when needed,
that would make drivers more clean and simple.
Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Reviewed-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
void __iomem *base;
struct device_node *node = pdev->dev.of_node;
struct regmap *regmap;
+ struct resource *res;
if (of_find_property(node, "sprd,syscon", NULL)) {
regmap = syscon_regmap_lookup_by_phandle(node, "sprd,syscon");
return PTR_ERR(regmap);
}
} else {
- base = of_iomap(node, 0);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
regmap = devm_regmap_init_mmio(&pdev->dev, base,
&sprdclk_regmap_config);
if (IS_ERR_OR_NULL(regmap)) {