watchdog: ar7_wdt: Make use of the helper function devm_platform_ioremap_resource_byn...

Use the devm_platform_ioremap_resource_byname() helper instead of
calling platform_get_resource_byname() and devm_ioremap_resource()
separately

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20210907074223.2706-1-caihuoqing@baidu.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c
index ff37dc91057d178fda58387743f272307ef9175b..743e171d97a37d54106e6e65a041e47a474ff42d 100644 (file)
--- a/drivers/watchdog/ar7_wdt.c
+++ b/drivers/watchdog/ar7_wdt.c
@@ -63,8 +63,6 @@ static DEFINE_SPINLOCK(wdt_lock);
 /* XXX currently fixed, allows max margin ~68.72 secs */
 #define prescale_value 0xffff
 
-/* Resource of the WDT registers */
-static struct resource *ar7_regs_wdt;
 /* Pointer to the remapped WDT IO space */
 static struct ar7_wdt *ar7_wdt;
 
@@ -265,9 +263,7 @@ static int ar7_wdt_probe(struct platform_device *pdev)
 {
        int rc;
 
-       ar7_regs_wdt =
-               platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
-       ar7_wdt = devm_ioremap_resource(&pdev->dev, ar7_regs_wdt);
+       ar7_wdt = devm_platform_ioremap_resource_byname(pdev, "regs");
        if (IS_ERR(ar7_wdt))
                return PTR_ERR(ar7_wdt);