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watchdog: npcm: Remove unnecessary NULL check before clk_prepare_enable/clk_disable_unprepare

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clk_prepare_enable() and clk_disable_unprepare() already checked
NULL clock parameter.Remove unneeded NULL check for clk here.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250313084420.2481763-1-nichen@iscas.ac.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This commit is contained in:
Chen Ni 2025-03-13 16:44:19 +08:00 committed by Wim Van Sebroeck
parent c40524d161
commit ad3746700a
1 changed files with 3 additions and 6 deletions
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9
drivers/watchdog/npcm_wdt.c
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@ -68,8 +68,7 @@ static int npcm_wdt_start(struct watchdog_device *wdd)
struct npcm_wdt *wdt = to_npcm_wdt(wdd);
u32 val;
if (wdt->clk)
clk_prepare_enable(wdt->clk);
clk_prepare_enable(wdt->clk);
if (wdd->timeout < 2)
val = 0x800;
@ -105,8 +104,7 @@ static int npcm_wdt_stop(struct watchdog_device *wdd)
writel(0, wdt->reg);
if (wdt->clk)
clk_disable_unprepare(wdt->clk);
clk_disable_unprepare(wdt->clk);
return 0;
}
@ -156,8 +154,7 @@ static int npcm_wdt_restart(struct watchdog_device *wdd,
struct npcm_wdt *wdt = to_npcm_wdt(wdd);
/* For reset, we start the WDT clock and leave it running. */
if (wdt->clk)
clk_prepare_enable(wdt->clk);
clk_prepare_enable(wdt->clk);
writel(NPCM_WTR | NPCM_WTRE | NPCM_WTE, wdt->reg);
udelay(1000);