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-rw-r--r--drivers/watchdog/sp805_wdt.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c
index 18d4bcfd1bfc..afcd13676542 100644
--- a/drivers/watchdog/sp805_wdt.c
+++ b/drivers/watchdog/sp805_wdt.c
@@ -130,9 +130,16 @@ 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);
if (ret) {
dev_err(&wdt->adev->dev, "clock enable fail");
+ clk_unprepare(wdt->clk);
return ret;
}
}
@@ -184,6 +191,7 @@ static int wdt_disable(struct watchdog_device *wdd)
spin_unlock(&wdt->lock);
clk_disable(wdt->clk);
+ clk_unprepare(wdt->clk);
return 0;
}