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Subject[RFC 2/5] rtc-at91rm9200: add device-tree support
Date
Add device tree support.
---
drivers/rtc/rtc-at91rm9200.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)

diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index 5bae0a1..67260f9 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -28,6 +28,7 @@
#include <linux/ioctl.h>
#include <linux/completion.h>
#include <linux/io.h>
+#include <linux/of.h>

#include <asm/uaccess.h>

@@ -255,9 +256,30 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id)
static const struct at91_rtc_config at91rm9200_config = {
};

+#if defined(CONFIG_OF)
+static const struct of_device_id at91_rtc_dt_ids[] = {
+ {
+ .compatible = "atmel,at91rm9200-rtc",
+ .data = &at91rm9200_config,
+ },
+ /* terminator */
+ }
+};
+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;
}

@@ -403,6 +425,7 @@ static struct platform_driver at91_rtc_driver = {
.driver = {
.name = "at91_rtc",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(at91_rtc_dt_ids),
.pm = at91_rtc_pm_ptr,
},
};
--
1.8.1.5


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