Protect against enabling/disabling the gate while we're
checking if it is enabled.
Signed-off-by: Abel Vesa <abel.vesa@xxxxxxx>
---
drivers/clk/imx/clk-gate2.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/imx/clk-gate2.c b/drivers/clk/imx/clk-gate2.c
index 7e4b5e8..480a184 100644
--- a/drivers/clk/imx/clk-gate2.c
+++ b/drivers/clk/imx/clk-gate2.c
@@ -101,9 +101,17 @@ static int clk_gate2_reg_is_enabled(void __iomem *reg, u8 bit_idx,
static int clk_gate2_is_enabled(struct clk_hw *hw)
{
struct clk_gate2 *gate = to_clk_gate2(hw);
+ unsigned long flags;
+ int ret = 0;
- return clk_gate2_reg_is_enabled(gate->reg, gate->bit_idx,
+ spin_lock_irqsave(gate->lock, flags);
+
+ ret = clk_gate2_reg_is_enabled(gate->reg, gate->bit_idx,
gate->cgr_val, gate->cgr_mask);
+
+ spin_unlock_irqrestore(gate->lock, flags);
+
+ return ret;
}
static void clk_gate2_disable_unused(struct clk_hw *hw)
--
2.7.4
