diff options
| author | Jingoo Han <jg1.han@samsung.com> | 2014-04-03 14:49:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-03 16:21:18 -0700 |
| commit | 1e6789f6e2e2b1645527d08832bfb95982da17ff (patch) | |
| tree | 3b1a147d4d7f9a7bca56a4ab08787cd9ac5cc45a /drivers/rtc/rtc-davinci.c | |
| parent | daaf90f0b014106e5672381c7b576a149b346dd9 (diff) | |
rtc: rtc-davinci: use devm_ioremap_resource()
Use devm_ioremap_resource() in order to make the code simpler, and
remove redundant return value check of platform_get_resource() because
the value is checked by devm_ioremap_resource().
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc/rtc-davinci.c')
| -rw-r--r-- | drivers/rtc/rtc-davinci.c | 29 |
1 files changed, 4 insertions, 25 deletions
diff --git a/drivers/rtc/rtc-davinci.c b/drivers/rtc/rtc-davinci.c index 1f3495e4e634..c0a3b59f65a2 100644 --- a/drivers/rtc/rtc-davinci.c +++ b/drivers/rtc/rtc-davinci.c @@ -119,8 +119,6 @@ static DEFINE_SPINLOCK(davinci_rtc_lock); struct davinci_rtc { struct rtc_device *rtc; void __iomem *base; - resource_size_t pbase; - size_t base_size; int irq; }; @@ -482,7 +480,7 @@ static int __init davinci_rtc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct davinci_rtc *davinci_rtc; - struct resource *res, *mem; + struct resource *res; int ret = 0; davinci_rtc = devm_kzalloc(&pdev->dev, sizeof(struct davinci_rtc), GFP_KERNEL); @@ -496,28 +494,9 @@ static int __init davinci_rtc_probe(struct platform_device *pdev) } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(dev, "no mem resource\n"); - return -EINVAL; - } - - davinci_rtc->pbase = res->start; - davinci_rtc->base_size = resource_size(res); - - mem = devm_request_mem_region(dev, davinci_rtc->pbase, - davinci_rtc->base_size, pdev->name); - if (!mem) { - dev_err(dev, "RTC registers at %08x are not free\n", - davinci_rtc->pbase); - return -EBUSY; - } - - davinci_rtc->base = devm_ioremap(dev, davinci_rtc->pbase, - davinci_rtc->base_size); - if (!davinci_rtc->base) { - dev_err(dev, "unable to ioremap MEM resource\n"); - return -ENOMEM; - } + davinci_rtc->base = devm_ioremap_resource(dev, res); + if (IS_ERR(davinci_rtc->base)) + return PTR_ERR(davinci_rtc->base); platform_set_drvdata(pdev, davinci_rtc); |