[PATCH v42 2/6] clk: WARN_ON about to disable a critical clock

[Michael Turquette <mturquette@baylibre.com>]

From: Lee Jones <lee.jones@linaro.org>

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
---
 drivers/clk/clk.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 993f775..39f9527 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -575,6 +575,9 @@ static void clk_core_unprepare(struct clk_core *core)
 	if (WARN_ON(core->prepare_count == 0))
 		return;
 
+	if (WARN_ON(core->prepare_count == 1 && core->flags & CLK_IS_CRITICAL))
+		return;
+
 	if (--core->prepare_count > 0)
 		return;
 
@@ -680,6 +683,9 @@ static void clk_core_disable(struct clk_core *core)
 	if (WARN_ON(core->enable_count == 0))
 		return;
 
+	if (WARN_ON(core->enable_count == 1 && core->flags & CLK_IS_CRITICAL))
+		return;
+
 	if (--core->enable_count > 0)
 		return;
 
-- 
2.1.4