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| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2012-08-26 18:01:02 +0200 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2012-12-19 22:24:38 +0100 |
| commit | 63fbbc169674496fc2ae501d97c3905232a3bf64 (patch) | |
| tree | ca8db9986fda8a46f4c467d4438269a15a7e6fa4 /drivers/watchdog | |
| parent | 8157becf8db0c798e1260f3af7c495a9b88e3b57 (diff) | |
| download | linux-63fbbc169674496fc2ae501d97c3905232a3bf64.tar.gz | |
watchdog: sp805_wdt.c: use clk_prepare_enable and clk_disable_unprepare
Clk_prepare_enable and clk_disable_unprepare combine clk_prepare and clk_enable, and clk_disable and clk_unprepare. They make the code more concise, and ensure that clk_unprepare is called when clk_enable fails. A simplified version of the semantic patch that introduces calls to these functions is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e; @@ - clk_prepare(e); - clk_enable(e); + clk_prepare_enable(e); @@ expression e; @@ - clk_disable(e); - clk_unprepare(e); + clk_disable_unprepare(e); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/sp805_wdt.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c index 76c73cbf0040..8872642505c0 100644 --- a/drivers/watchdog/sp805_wdt.c +++ b/drivers/watchdog/sp805_wdt.c @@ -130,16 +130,10 @@ static int wdt_config(struct watchdog_device *wdd, bool ping) int ret; if (!ping) { - ret = clk_prepare(wdt->clk); - if (ret) { - dev_err(&wdt->adev->dev, "clock prepare fail"); - return ret; - } - ret = clk_enable(wdt->clk); + ret = clk_prepare_enable(wdt->clk); if (ret) { dev_err(&wdt->adev->dev, "clock enable fail"); - clk_unprepare(wdt->clk); return ret; } } @@ -190,8 +184,7 @@ static int wdt_disable(struct watchdog_device *wdd) readl_relaxed(wdt->base + WDTLOCK); spin_unlock(&wdt->lock); - clk_disable(wdt->clk); - clk_unprepare(wdt->clk); + clk_disable_unprepare(wdt->clk); return 0; } |