clk: shmobile: mstp: Fix the is_enabled() operation

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 <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
(cherry picked from commit bb178da701382a230e26d90cf94e8a24b280e0d9)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/drivers/clk/shmobile/clk-mstp.c b/drivers/clk/shmobile/clk-mstp.c
index 1f6324e..2d2fe77 100644 (file)
--- 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 = {