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Subject[RFC PATCH V1 1/2] clk: use atomic runtime pm api in clk_core_is_enabled
Date
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 <sboyd@codeaurora.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Fixes: 9a34b45397e5 ("clk: Add support for runtime PM")
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
---
drivers/clk/clk.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 5ec5809..e24968f 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -227,7 +227,8 @@ 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;
}
--
2.7.4
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