forked from luck/tmp_suning_uos_patched
watchdog: sp805_wdt: Add clk_{un}prepare support
clk_{un}prepare() routines are required for required on some platforms to run part of clk enable/disable() routines from contexts that can schedule. This patch adds support for these routines in sp805 driver. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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@ -130,9 +130,16 @@ static int wdt_config(struct watchdog_device *wdd, bool ping)
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int ret;
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if (!ping) {
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ret = clk_prepare(wdt->clk);
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if (ret) {
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dev_err(&wdt->adev->dev, "clock prepare fail");
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return ret;
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}
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ret = clk_enable(wdt->clk);
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if (ret) {
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dev_err(&wdt->adev->dev, "clock enable fail");
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clk_unprepare(wdt->clk);
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return ret;
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}
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}
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@ -184,6 +191,7 @@ static int wdt_disable(struct watchdog_device *wdd)
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spin_unlock(&wdt->lock);
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clk_disable(wdt->clk);
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clk_unprepare(wdt->clk);
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return 0;
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}
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