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 <[email protected]> --- drivers/clk/sprd/common.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/clk/sprd/common.c b/drivers/clk/sprd/common.c index e038b0447206..9ce690999eaa 100644 --- a/drivers/clk/sprd/common.c +++ b/drivers/clk/sprd/common.c @@ -42,6 +42,7 @@ int sprd_clk_regmap_init(struct platform_device *pdev, 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"); @@ -50,7 +51,11 @@ int sprd_clk_regmap_init(struct platform_device *pdev, 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)) { -- 2.17.1
