rtc: rtc-jz4740: use devm_ioremap_resource() (3b6aa907) · Commits · 戴 / test

drivers/rtc/rtc-jz4740.c

+5 −20

Original line number	Diff line number	Diff line
		@@ -38,7 +38,6 @@
		#define JZ_RTC_CTRL_ENABLE BIT(0)

		struct jz4740_rtc {
		struct resource *mem;
		void __iomem *base;

		struct rtc_device *rtc;
		@@ -216,6 +215,7 @@ static int jz4740_rtc_probe(struct platform_device *pdev)
		int ret;
		struct jz4740_rtc *rtc;
		uint32_t scratchpad;
		struct resource *mem;

		rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);
		if (!rtc)
		@@ -227,25 +227,10 @@ static int jz4740_rtc_probe(struct platform_device *pdev)
		return -ENOENT;
		}

		rtc->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
		if (!rtc->mem) {
		dev_err(&pdev->dev, "Failed to get platform mmio memory\n");
		return -ENOENT;
		}

		rtc->mem = devm_request_mem_region(&pdev->dev, rtc->mem->start,
		resource_size(rtc->mem), pdev->name);
		if (!rtc->mem) {
		dev_err(&pdev->dev, "Failed to request mmio memory region\n");
		return -EBUSY;
		}

		rtc->base = devm_ioremap_nocache(&pdev->dev, rtc->mem->start,
		resource_size(rtc->mem));
		if (!rtc->base) {
		dev_err(&pdev->dev, "Failed to ioremap mmio memory\n");
		return -EBUSY;
		}
		mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
		rtc->base = devm_ioremap_resource(&pdev->dev, mem);
		if (IS_ERR(rtc->base))
		return PTR_ERR(rtc->base);

		spin_lock_init(&rtc->lock);