[PATCH RESEND v2 2/2] clk: core: Fix runtime PM sequence in clk_core_unprepare()

Chen-Yu Tsai
2022-08-22T08:14:53Z

In the original commit 9a34b45397e5 ("clk: Add support for runtime PM"),
the commit message mentioned that pm_runtime_put_sync() would be done
at the end of clk_core_unprepare(). This mirrors the operations in
clk_core_prepare() in the opposite order.

However, the actual code that was added wasn't in the order the commit
message described. Move clk_pm_runtime_put() to the end of
clk_core_unprepare() so that it is in the correct order.

Fixes: 9a34b45397e5 ("clk: Add support for runtime PM")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
---
drivers/clk/clk.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 9b365cd6d14b..2e29a72c68e1 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -859,13 +859,12 @@ static void clk_core_unprepare(struct clk_core *core)
if (core->ops->unprepare)
core->ops->unprepare(core->hw);

- clk_pm_runtime_put(core);
-
trace_clk_unprepare_complete(core);

if (core->flags & CLK_OPS_PARENT_ENABLE)
clk_core_disable_lock(core->parent);
clk_core_unprepare(core->parent);
+ clk_pm_runtime_put(core);
}

static void clk_core_unprepare_lock(struct clk_core *core)
--
2.37.1.595.g718a3a8f04-goog