[PATCH v2 2/3] clk: ti: check clock type before doing autoidle ops

Andreas Kemnade
2018-11-10T20:31:38Z

Code might use autoidle api with clocks not being omap2 clocks,
so check if clock type is not basic

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
---
New in v2
---
drivers/clk/ti/autoidle.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/ti/autoidle.c b/drivers/clk/ti/autoidle.c
index 161f67850393..5bdae5552d38 100644
--- a/drivers/clk/ti/autoidle.c
+++ b/drivers/clk/ti/autoidle.c
@@ -54,8 +54,12 @@ static DEFINE_SPINLOCK(autoidle_spinlock);
int omap2_clk_deny_idle(struct clk *clk)
{
struct clk_hw_omap *c;
+ struct clk_hw *hw = __clk_get_hw(clk);

- c = to_clk_hw_omap(__clk_get_hw(clk));
+ if (clk_hw_get_flags(hw) & CLK_IS_BASIC)
+ return -EINVAL;
+
+ c = to_clk_hw_omap(hw);
if (c->ops && c->ops->deny_idle) {
unsigned long irqflags;

@@ -77,8 +81,12 @@ int omap2_clk_deny_idle(struct clk *clk)
int omap2_clk_allow_idle(struct clk *clk)
{
struct clk_hw_omap *c;
+ struct clk_hw *hw = __clk_get_hw(clk);

- c = to_clk_hw_omap(__clk_get_hw(clk));
+ if (clk_hw_get_flags(hw) & CLK_IS_BASIC)
+ return -EINVAL;
+
+ c = to_clk_hw_omap(hw);
if (c->ops && c->ops->allow_idle) {
unsigned long irqflags;

--
2.11.0