clk: use atomic runtime pm api in clk_core_is_enabled

Current clk_pm_runtime_put is using pm_runtime_put_sync which is not safe to be called in clk_core_is_enabled as it should be able to run in atomic context. Thus use pm_runtime_put instead which is atomic safe. Cc: Stephen Boyd <[email protected]> Cc: Michael Turquette <[email protected]> Cc: Ulf Hansson <[email protected]> Cc: Marek Szyprowski <[email protected]> Fixes: 9a34b45 ("clk: Add support for runtime PM") Signed-off-by: Dong Aisheng <[email protected]> Reviewed-by: Ulf Hansson <[email protected]> Signed-off-by: Stephen Boyd <[email protected]>
berg · Dec 27, 2017 · 756efe1 · 756efe1
1 parent 61d2f2a
commit 756efe1
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
@@ -220,7 +220,8 @@ static bool clk_core_is_enabled(struct clk_core *core)
 
 	ret = core->ops->is_enabled(core->hw);
 done:
-	clk_pm_runtime_put(core);
+	if (core->dev)
+		pm_runtime_put(core->dev);
 
 	return ret;
 }