rtc-at91rm9200: add configuration support (de645475) · Commits · 戴 / test

drivers/rtc/rtc-at91rm9200.c

+38 −8

Original line number	Diff line number	Diff line
		@@ -42,6 +42,10 @@

		#define AT91_RTC_EPOCH 1900UL /* just like arch/arm/common/rtctime.c */

		struct at91_rtc_config {
		};

		static const struct at91_rtc_config *at91_rtc_config;
		static DECLARE_COMPLETION(at91_rtc_updated);
		static unsigned int at91_alarm_year = AT91_RTC_EPOCH;
		static void __iomem *at91_rtc_regs;
		@@ -250,6 +254,36 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id)
		return IRQ_NONE; /* not handled */
		}

		static const struct at91_rtc_config at91rm9200_config = {
		};

		#ifdef CONFIG_OF
		static const struct of_device_id at91_rtc_dt_ids[] = {
		{
		.compatible = "atmel,at91rm9200-rtc",
		.data = &at91rm9200_config,
		}, {
		/* sentinel */
		}
		};
		MODULE_DEVICE_TABLE(of, at91_rtc_dt_ids);
		#endif

		static const struct at91_rtc_config *
		at91_rtc_get_config(struct platform_device *pdev)
		{
		const struct of_device_id *match;

		if (pdev->dev.of_node) {
		match = of_match_node(at91_rtc_dt_ids, pdev->dev.of_node);
		if (!match)
		return NULL;
		return (const struct at91_rtc_config *)match->data;
		}

		return &at91rm9200_config;
		}

		static const struct rtc_class_ops at91_rtc_ops = {
		.read_time = at91_rtc_readtime,
		.set_time = at91_rtc_settime,
		@@ -268,6 +302,10 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
		struct resource *regs;
		int ret = 0;

		at91_rtc_config = at91_rtc_get_config(pdev);
		if (!at91_rtc_config)
		return -ENODEV;

		regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
		if (!regs) {
		dev_err(&pdev->dev, "no mmio resource defined\n");
		@@ -383,14 +421,6 @@ static int at91_rtc_resume(struct device *dev)

		static SIMPLE_DEV_PM_OPS(at91_rtc_pm_ops, at91_rtc_suspend, at91_rtc_resume);

		#ifdef CONFIG_OF
		static const struct of_device_id at91_rtc_dt_ids[] = {
		{ .compatible = "atmel,at91rm9200-rtc" },
		{ /* sentinel */ }
		};
		MODULE_DEVICE_TABLE(of, at91_rtc_dt_ids);
		#endif

		static struct platform_driver at91_rtc_driver = {
		.remove = __exit_p(at91_rtc_remove),
		.driver = {

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