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Commit e48add8c authored by Atul Dahiya's avatar Atul Dahiya Committed by Kukjin Kim
Browse files

rtc: rtc-s3c: Updates RTC driver for clock enabling support 



This Patch updates existing Samsung RTC driver for clock enabling support.

Signed-off-by: default avatarAtul Dahiya <atul.dahiya@samsung.com>
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Acked-by: default avatarWan ZongShun <mcuos.com@gmail.com>
parent 32fc7fb3

drivers/rtc/rtc-s3c.c

+22 −0
Original line number Diff line number Diff line 
/* drivers/rtc/rtc-s3c.c

 *

 * Copyright (c) 2010 Samsung Electronics Co., Ltd.

 *		http://www.samsung.com/

 *

 * Copyright (c) 2004,2006 Simtec Electronics

 *	Ben Dooks, <ben@simtec.co.uk>
@@ -39,6 +42,7 @@ enum s3c_cpu_type { 


static struct resource *s3c_rtc_mem;



static struct clk *rtc_clk;

static void __iomem *s3c_rtc_base;

static int s3c_rtc_alarmno = NO_IRQ;

static int s3c_rtc_tickno  = NO_IRQ;
@@ -431,6 +435,10 @@ static int __devexit s3c_rtc_remove(struct platform_device *dev) 
	s3c_rtc_setpie(&dev->dev, 0);

	s3c_rtc_setaie(0);



	clk_disable(rtc_clk);

	clk_put(rtc_clk);

	rtc_clk = NULL;



	iounmap(s3c_rtc_base);

	release_resource(s3c_rtc_mem);

	kfree(s3c_rtc_mem);
@@ -488,6 +496,16 @@ static int __devinit s3c_rtc_probe(struct platform_device *pdev) 
		goto err_nomap;

	}



	rtc_clk = clk_get(&pdev->dev, "rtc");

	if (IS_ERR(rtc_clk)) {

		dev_err(&pdev->dev, "failed to find rtc clock source\n");

		ret = PTR_ERR(rtc_clk);

		rtc_clk = NULL;

		goto err_clk;

	}



	clk_enable(rtc_clk);



	/* check to see if everything is setup correctly */



	s3c_rtc_enable(pdev, 1);
@@ -523,6 +541,10 @@ static int __devinit s3c_rtc_probe(struct platform_device *pdev) 


 err_nortc:

	s3c_rtc_enable(pdev, 0);

	clk_disable(rtc_clk);

	clk_put(rtc_clk);



 err_clk:

	iounmap(s3c_rtc_base);



 err_nomap: