diff options
| author | Jingoo Han <jg1.han@samsung.com> | 2014-02-11 16:44:12 +0400 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2014-03-31 15:24:31 +0400 |
| commit | 6e272061391946fe28cadd5f9fbab1bab82b3748 (patch) | |
| tree | 877a80a683a420b6a9fc8b102551ea9a19d54ad3 /drivers/watchdog | |
| parent | 4f6120b014c6a981a57a8951e01acfead1a57069 (diff) | |
| download | linux-6e272061391946fe28cadd5f9fbab1bab82b3748.tar.xz | |
watchdog: omap_wdt: Use devm_ioremap_resource()
Use devm_ioremap_resource() in order to make the code simpler,
and remove 'struct resource *mem' from 'struct omap_wdt_dev'
and omap_wdt_probe(), resplectively. because the 'mem' variables
are not used anymore. Also the redundant return value check of
platform_get_resource() is removed, because the value is checked
by devm_ioremap_resource().
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/omap_wdt.c | 22 |
1 files changed, 6 insertions, 16 deletions
diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c index fbcb6f6a809d..3691b157516a 100644 --- a/drivers/watchdog/omap_wdt.c +++ b/drivers/watchdog/omap_wdt.c @@ -57,7 +57,6 @@ struct omap_wdt_dev { void __iomem *base; /* physical */ struct device *dev; bool omap_wdt_users; - struct resource *mem; int wdt_trgr_pattern; struct mutex lock; /* to avoid races with PM */ }; @@ -206,7 +205,7 @@ static int omap_wdt_probe(struct platform_device *pdev) { struct omap_wd_timer_platform_data *pdata = dev_get_platdata(&pdev->dev); struct watchdog_device *omap_wdt; - struct resource *res, *mem; + struct resource *res; struct omap_wdt_dev *wdev; u32 rs; int ret; @@ -215,29 +214,20 @@ static int omap_wdt_probe(struct platform_device *pdev) if (!omap_wdt) return -ENOMEM; - /* reserve static register mappings */ - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENOENT; - - mem = devm_request_mem_region(&pdev->dev, res->start, - resource_size(res), pdev->name); - if (!mem) - return -EBUSY; - wdev = devm_kzalloc(&pdev->dev, sizeof(*wdev), GFP_KERNEL); if (!wdev) return -ENOMEM; wdev->omap_wdt_users = false; - wdev->mem = mem; wdev->dev = &pdev->dev; wdev->wdt_trgr_pattern = 0x1234; mutex_init(&wdev->lock); - wdev->base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); - if (!wdev->base) - return -ENOMEM; + /* reserve static register mappings */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + wdev->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(wdev->base)) + return PTR_ERR(wdev->base); omap_wdt->info = &omap_wdt_info; omap_wdt->ops = &omap_wdt_ops; |