[v2,3/5] clk: imx: gate2: Check if clock is enabled against cgr_val

Commit Message

Abel Vesa Oct. 28, 2020, 12:59 p.m. UTC

Seems the logic here was wrong all along. For example, if
the cgr_val is 2 (0b10), the clk_gate2_reg_is_enabled would
report the clock as disabled. So check against cgr_val instead.

Signed-off-by: Abel Vesa <[e-mail]>
---
 drivers/clk/imx/clk-gate2.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Patch

diff --git a/drivers/clk/imx/clk-gate2.c b/drivers/clk/imx/clk-gate2.c
index e1f6cd9..40bcc2d 100644
--- a/drivers/clk/imx/clk-gate2.c
+++ b/drivers/clk/imx/clk-gate2.c
@@ -86,11 +86,11 @@  static void clk_gate2_disable(struct clk_hw *hw)
 	spin_unlock_irqrestore(gate->lock, flags);
 }
 
-static int clk_gate2_reg_is_enabled(void __iomem *reg, u8 bit_idx)
+static int clk_gate2_reg_is_enabled(void __iomem *reg, u8 bit_idx, u8 cgr_val)
 {
 	u32 val = readl(reg);
 
-	if (((val >> bit_idx) & 1) == 1)
+	if (((val >> bit_idx) & 3) == cgr_val)
 		return 1;
 
 	return 0;
@@ -100,7 +100,7 @@  static int clk_gate2_is_enabled(struct clk_hw *hw)
 {
 	struct clk_gate2 *gate = to_clk_gate2(hw);
 
-	return clk_gate2_reg_is_enabled(gate->reg, gate->bit_idx);
+	return clk_gate2_reg_is_enabled(gate->reg, gate->bit_idx, gate->cgr_val);
 }
 
 static void clk_gate2_disable_unused(struct clk_hw *hw)