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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2015-08-12 10:15:53 +0200 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2015-09-09 21:36:39 +0200 |
| commit | 50ffb53ef2311e4631086d27783b00db6859c60e (patch) | |
| tree | 83f98b23fd810647db00b43d886b7cf6ca53191f /drivers/watchdog | |
| parent | a57e06f7c6365f7d6e13f35933d3ef329205c1af (diff) | |
| download | linux-50ffb53ef2311e4631086d27783b00db6859c60e.tar.gz linux-50ffb53ef2311e4631086d27783b00db6859c60e.tar.bz2 linux-50ffb53ef2311e4631086d27783b00db6859c60e.zip | |
watchdog: mpc8xxx: simplify registration
Since commit ef90174f8210 ("watchdog: watchdog_core: Add watchdog
registration deferral mechanism") there is no need to delay the call to
watchdog_register_device any more. So simplify the registration code
accordingly.
Resetting wd_base to NULL can the also be dropped because nothing
depends on it being NULL to signal probe failure any more. (The matching
wd_base = NULL in .remove was missing, too.)
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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/mpc8xxx_wdt.c | 38 |
1 files changed, 7 insertions, 31 deletions
diff --git a/drivers/watchdog/mpc8xxx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c index 8ad42b83f995..e0acda3282d9 100644 --- a/drivers/watchdog/mpc8xxx_wdt.c +++ b/drivers/watchdog/mpc8xxx_wdt.c @@ -51,7 +51,6 @@ struct mpc8xxx_wdt_type { }; static struct mpc8xxx_wdt __iomem *wd_base; -static int mpc8xxx_wdt_init_late(void); static u16 timeout = 0xffff; module_param(timeout, ushort, 0); @@ -174,11 +173,14 @@ static int mpc8xxx_wdt_probe(struct platform_device *ofdev) timeout_sec = (timeout * wdt_type->prescaler) / freq; mpc8xxx_wdt_dev.timeout = timeout_sec; -#ifdef MODULE - ret = mpc8xxx_wdt_init_late(); - if (ret) + + watchdog_set_nowayout(&mpc8xxx_wdt_dev, nowayout); + + ret = watchdog_register_device(&mpc8xxx_wdt_dev); + if (ret) { + pr_err("cannot register watchdog device (err=%d)\n", ret); goto err_unmap; -#endif + } pr_info("WDT driver for MPC8xxx initialized. mode:%s timeout=%d (%d seconds)\n", reset ? "reset" : "interrupt", timeout, timeout_sec); @@ -193,7 +195,6 @@ static int mpc8xxx_wdt_probe(struct platform_device *ofdev) return 0; err_unmap: iounmap(wd_base); - wd_base = NULL; return ret; } @@ -242,31 +243,6 @@ static struct platform_driver mpc8xxx_wdt_driver = { }, }; -/* - * We do wdt initialization in two steps: arch_initcall probes the wdt - * very early to start pinging the watchdog (misc devices are not yet - * available), and later module_init() just registers the misc device. - */ -static int mpc8xxx_wdt_init_late(void) -{ - int ret; - - if (!wd_base) - return -ENODEV; - - watchdog_set_nowayout(&mpc8xxx_wdt_dev, nowayout); - - ret = watchdog_register_device(&mpc8xxx_wdt_dev); - if (ret) { - pr_err("cannot register watchdog device (err=%d)\n", ret); - return ret; - } - return 0; -} -#ifndef MODULE -module_init(mpc8xxx_wdt_init_late); -#endif - static int __init mpc8xxx_wdt_init(void) { return platform_driver_register(&mpc8xxx_wdt_driver); |