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Commit 9e3ba4ae authored by Amit Nischal's avatar Amit Nischal
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clk: Fix handoff counts for parent of handoff enabled clocks 



For commit 44aa223a ("clk: move check for CLK_ENABLE_HAND_OFF at
unused tree") at unused tree level, prepare and enable counts are
only decrementing for handoff enabled clock(having CLK_ENABLE_HAND_OFF
flag) and counts are not decrementing for their parent clock.
So fixing the same by adding clk_core_unprepare/disable at unused tree
level for handoff enabled clocks so that parent handoff counts also
gets decrement.

Change-Id: Ib238540b2addbe8c9ff7f2e34428169c76e3f44b
Signed-off-by: default avatarAmit Nischal <anischal@codeaurora.org>
parent 55e8426a

drivers/clk/clk.c

+7 −2
Original line number Diff line number Diff line
@@ -188,6 +188,9 @@ static bool clk_core_is_enabled(struct clk_core *core) 
	return core->ops->is_enabled(core->hw);

}



static void clk_core_unprepare(struct clk_core *core);

static void clk_core_disable(struct clk_core *core);



static void clk_unprepare_unused_subtree(struct clk_core *core)

{

	struct clk_core *child;
@@ -207,7 +210,7 @@ static void clk_unprepare_unused_subtree(struct clk_core *core) 
	 */

	if (core->need_handoff_prepare) {

		core->need_handoff_prepare = false;

		core->prepare_count--;

		clk_core_unprepare(core);

	}



	if (core->prepare_count)
@@ -246,7 +249,9 @@ static void clk_disable_unused_subtree(struct clk_core *core) 
	 */

	if (core->need_handoff_enable) {

		core->need_handoff_enable = false;

		core->enable_count--;

		flags = clk_enable_lock();

		clk_core_disable(core);

		clk_enable_unlock(flags);

	}



	flags = clk_enable_lock();