diff options
| -rw-r--r-- | Documentation/devicetree/bindings/rtc/s3c-rtc.txt | 20 | ||||
| -rw-r--r-- | drivers/rtc/rtc-s3c.c | 21 |
2 files changed, 40 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/rtc/s3c-rtc.txt b/Documentation/devicetree/bindings/rtc/s3c-rtc.txt new file mode 100644 index 00000000000..90ec45fd33e --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/s3c-rtc.txt @@ -0,0 +1,20 @@ +* Samsung's S3C Real Time Clock controller + +Required properties: +- compatible: should be one of the following. + * "samsung,s3c2410-rtc" - for controllers compatible with s3c2410 rtc. + * "samsung,s3c6410-rtc" - for controllers compatible with s3c6410 rtc. +- reg: physical base address of the controller and length of memory mapped + region. +- interrupts: Two interrupt numbers to the cpu should be specified. First + interrupt number is the rtc alarm interupt and second interrupt number + is the rtc tick interrupt. The number of cells representing a interrupt + depends on the parent interrupt controller. + +Example: + + rtc@10070000 { + compatible = "samsung,s3c6410-rtc"; + reg = <0x10070000 0x100>; + interrupts = <44 0 45 0>; + }; diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index 5b979d9cc33..175067a17c4 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -25,6 +25,7 @@ #include <linux/clk.h> #include <linux/log2.h> #include <linux/slab.h> +#include <linux/of.h> #include <mach/hardware.h> #include <asm/uaccess.h> @@ -507,7 +508,13 @@ static int __devinit s3c_rtc_probe(struct platform_device *pdev) goto err_nortc; } - s3c_rtc_cpu_type = platform_get_device_id(pdev)->driver_data; +#ifdef CONFIG_OF + if (pdev->dev.of_node) + s3c_rtc_cpu_type = of_device_is_compatible(pdev->dev.of_node, + "samsung,s3c6410-rtc") ? TYPE_S3C64XX : TYPE_S3C2410; + else +#endif + s3c_rtc_cpu_type = platform_get_device_id(pdev)->driver_data; /* Check RTC Time */ @@ -629,6 +636,17 @@ static int s3c_rtc_resume(struct platform_device *pdev) #define s3c_rtc_resume NULL #endif +#ifdef CONFIG_OF +static const struct of_device_id s3c_rtc_dt_match[] = { + { .compatible = "samsung,s3c2410-rtc" }, + { .compatible = "samsung,s3c6410-rtc" }, + {}, +}; +MODULE_DEVICE_TABLE(of, s3c_rtc_dt_match); +#else +#define s3c_rtc_dt_match NULL +#endif + static struct platform_device_id s3c_rtc_driver_ids[] = { { .name = "s3c2410-rtc", @@ -651,6 +669,7 @@ static struct platform_driver s3c_rtc_driver = { .driver = { .name = "s3c-rtc", .owner = THIS_MODULE, + .of_match_table = s3c_rtc_dt_match, }, }; |