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watchdog: rt2880_wdt: minor clean up

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Replace device_reset() with devm_reset_control_get() + reset_control_deassert().
Make use of watchdog_init_timeout() instead of setting the timeout manually.

Signed-off-by: John Crispin <blogic@openwrt.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
John Crispin 2014-10-16 22:01:05 +02:00 committed by Wim Van Sebroeck
parent b91b5be5ba
commit a6f8f81ec7
1 changed files with 6 additions and 3 deletions
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9
drivers/watchdog/rt2880_wdt.c
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@ -45,6 +45,7 @@
static struct clk *rt288x_wdt_clk;
static unsigned long rt288x_wdt_freq;
static void __iomem *rt288x_wdt_base;
static struct reset_control *rt288x_wdt_reset;
static bool nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, bool, 0);
@ -151,16 +152,18 @@ static int rt288x_wdt_probe(struct platform_device *pdev)
if (IS_ERR(rt288x_wdt_clk))
return PTR_ERR(rt288x_wdt_clk);
device_reset(&pdev->dev);
rt288x_wdt_reset = devm_reset_control_get(&pdev->dev, NULL);
if (!IS_ERR(rt288x_wdt_reset))
reset_control_deassert(rt288x_wdt_reset);
rt288x_wdt_freq = clk_get_rate(rt288x_wdt_clk) / RALINK_WDT_PRESCALE;
rt288x_wdt_dev.dev = &pdev->dev;
rt288x_wdt_dev.bootstatus = rt288x_wdt_bootcause();
rt288x_wdt_dev.max_timeout = (0xfffful / rt288x_wdt_freq);
rt288x_wdt_dev.timeout = rt288x_wdt_dev.max_timeout;
watchdog_init_timeout(&rt288x_wdt_dev, rt288x_wdt_dev.max_timeout,
&pdev->dev);
watchdog_set_nowayout(&rt288x_wdt_dev, nowayout);
ret = watchdog_register_device(&rt288x_wdt_dev);