linux-kernel - [PATCH] rtc: palmas: add dt support

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Date:	Thu, 21 Mar 2013 20:02:10 +0530
From:	Laxman Dewangan <ldewangan@...dia.com>
To:	<akpm@...ux-foundation.org>
CC:	<a.zummo@...ertech.it>, <grant.likely@...retlab.ca>,
	<rtc-linux@...glegroups.com>, <linux-kernel@...r.kernel.org>,
	<devicetree-discuss@...ts.ozlabs.org>, <rob.herring@...xeda.com>,
	<linux-tegra@...r.kernel.org>, <swarren@...dia.com>,
	Laxman Dewangan <ldewangan@...dia.com>
Subject: [PATCH] rtc: palmas: add dt support

Add of_device_id table for Palma RTC to be enable the
driver from DT file.

The driver can be registered from DT file as:
	palmas: tps65913@58 {
		:::::::::::
		palmas_rtc {
			compatible = "ti,palmas-rtc";
			interrupt-parent = <&palmas>;
			interrupts = <8 0>;
		};
	};

Signed-off-by: Laxman Dewangan <ldewangan@...dia.com>
---
 drivers/rtc/rtc-palmas.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/drivers/rtc/rtc-palmas.c b/drivers/rtc/rtc-palmas.c
index bbc3b9e..50204d4 100644
--- a/drivers/rtc/rtc-palmas.c
+++ b/drivers/rtc/rtc-palmas.c
@@ -30,6 +30,7 @@
 #include <linux/kernel.h>
 #include <linux/mfd/palmas.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/rtc.h>
 #include <linux/types.h>
 #include <linux/platform_device.h>
@@ -316,6 +317,14 @@ static const struct dev_pm_ops palmas_rtc_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(palmas_rtc_suspend, palmas_rtc_resume)
 };
 
+#ifdef CONFIG_OF
+static struct of_device_id of_palmas_rtc_match[] = {
+	{ .compatible = "ti,palmas-rtc"},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, of_palmas_rtc_match);
+#endif
+
 static struct platform_driver palmas_rtc_driver = {
 	.probe		= palmas_rtc_probe,
 	.remove		= palmas_rtc_remove,
@@ -323,6 +332,7 @@ static struct platform_driver palmas_rtc_driver = {
 		.owner	= THIS_MODULE,
 		.name	= "palmas-rtc",
 		.pm	= &palmas_rtc_pm_ops,
+		.of_match_table = of_match_ptr(of_palmas_rtc_match),
 	},
 };
 
-- 
1.7.1.1

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