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Diffstat (limited to 'arch/arm/mach-imx/clk-gate2.c')
-rw-r--r--arch/arm/mach-imx/clk-gate2.c23
1 files changed, 19 insertions, 4 deletions
diff --git a/arch/arm/mach-imx/clk-gate2.c b/arch/arm/mach-imx/clk-gate2.c
index 5a75cdc81891..8935bff99fe7 100644
--- a/arch/arm/mach-imx/clk-gate2.c
+++ b/arch/arm/mach-imx/clk-gate2.c
@@ -96,15 +96,30 @@ static int clk_gate2_is_enabled(struct clk_hw *hw)
{
struct clk_gate2 *gate = to_clk_gate2(hw);
- if (gate->share_count)
- return !!__clk_get_enable_count(hw->clk);
- else
- return clk_gate2_reg_is_enabled(gate->reg, gate->bit_idx);
+ return clk_gate2_reg_is_enabled(gate->reg, gate->bit_idx);
+}
+
+static void clk_gate2_disable_unused(struct clk_hw *hw)
+{
+ struct clk_gate2 *gate = to_clk_gate2(hw);
+ unsigned long flags = 0;
+ u32 reg;
+
+ spin_lock_irqsave(gate->lock, flags);
+
+ if (!gate->share_count || *gate->share_count == 0) {
+ reg = readl(gate->reg);
+ reg &= ~(3 << gate->bit_idx);
+ writel(reg, gate->reg);
+ }
+
+ spin_unlock_irqrestore(gate->lock, flags);
}
static struct clk_ops clk_gate2_ops = {
.enable = clk_gate2_enable,
.disable = clk_gate2_disable,
+ .disable_unused = clk_gate2_disable_unused,
.is_enabled = clk_gate2_is_enabled,
};