[LTSI-3.14,257/894] clk: shmobile: mstp: Fix the is_enabled() operation

Commit Message

Simon Horman Aug. 28, 2014, 6:56 a.m. UTC

From: Laurent Pinchart <[e-mail]>

The MSTP[SC]R registers have clock stop bits, not clock enable bits. The
bit value should thus be inverted in the is_enabled() operation.

Signed-off-by: Laurent Pinchart <[e-mail]>
Signed-off-by: Geert Uytterhoeven <[e-mail]>
Signed-off-by: Mike Turquette <[e-mail]>
(cherry picked from commit bb178da701382a230e26d90cf94e8a24b280e0d9)
Signed-off-by: Simon Horman <[e-mail]>
---
 drivers/clk/shmobile/clk-mstp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/drivers/clk/shmobile/clk-mstp.c b/drivers/clk/shmobile/clk-mstp.c
index 1f6324e..2d2fe77 100644
--- a/drivers/clk/shmobile/clk-mstp.c
+++ b/drivers/clk/shmobile/clk-mstp.c
@@ -112,7 +112,7 @@  static int cpg_mstp_clock_is_enabled(struct clk_hw *hw)
 	else
 		value = clk_readl(group->smstpcr);
 
-	return !!(value & BIT(clock->bit_index));
+	return !(value & BIT(clock->bit_index));
 }
 
 static const struct clk_ops cpg_mstp_clock_ops = {