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drivers/rtc/rtc-ds1742.c: add devicetree support

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This patch allows the driver to be enabled with devicetree.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexander Shiyan 2014-01-23 15:55:06 -08:00 committed by Linus Torvalds
parent 1b3d2243d0
commit 663b35241d
2 changed files with 21 additions and 1 deletions
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12
Documentation/devicetree/bindings/rtc/maxim,ds1742.txt Normal file
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@ -0,0 +1,12 @@
* Maxim (Dallas) DS1742/DS1743 Real Time Clock
Required properties:
- compatible: Should contain "maxim,ds1742".
- reg: Physical base address of the RTC and length of memory
mapped region.
Example:
rtc: rtc@10000000 {
compatible = "maxim,ds1742";
reg = <0x10000000 0x800>;
};

10
drivers/rtc/rtc-ds1742.c
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@ -13,12 +13,13 @@
*/
#include <linux/bcd.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/gfp.h>
#include <linux/delay.h>
#include <linux/jiffies.h>
#include <linux/rtc.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/module.h>
@ -215,12 +216,19 @@ static int ds1742_rtc_remove(struct platform_device *pdev)
return 0;
}
static struct of_device_id __maybe_unused ds1742_rtc_of_match[] = {
{ .compatible = "maxim,ds1742", },
{ }
};
MODULE_DEVICE_TABLE(of, ds1742_rtc_of_match);
static struct platform_driver ds1742_rtc_driver = {
.probe = ds1742_rtc_probe,
.remove = ds1742_rtc_remove,
.driver = {
.name = "rtc-ds1742",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(ds1742_rtc_of_match),
},
};