diff options
| author |   Atul Dahiya <atul.dahiya@samsung.com> | 2010-07-20 12:19:14 +0530 |
|---|---|---|
| committer |   Kukjin Kim <kgene.kim@samsung.com> | 2010-08-05 18:32:51 +0900 |
| commit | e48add8c1c462fb10d6297b739a57ef599eb02ae (patch) | |
| tree | 16baea53f387c22ab9df44a06d033e8d632b710b /drivers/rtc | |
| parent | ARM: S3C64XX: Move RTC clock from init_clocks to init_clocks_disable (diff) | |
| download | linux-dev-e48add8c1c462fb10d6297b739a57ef599eb02ae.tar.xz linux-dev-e48add8c1c462fb10d6297b739a57ef599eb02ae.zip | |
rtc: rtc-s3c: Updates RTC driver for clock enabling support
This Patch updates existing Samsung RTC driver for clock enabling support.
Signed-off-by: Atul Dahiya <atul.dahiya@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-s3c.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index 70b68d35f969..c032a15c84ab 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -1,5 +1,8 @@ /* 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> * http://armlinux.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: |