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Diffstat (limited to 'arch/arm/mach-imx/clk-pfd.c')
-rw-r--r--arch/arm/mach-imx/clk-pfd.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/clk-pfd.c b/arch/arm/mach-imx/clk-pfd.c
index e2ed4160f329..0b0f6f66ec56 100644
--- a/arch/arm/mach-imx/clk-pfd.c
+++ b/arch/arm/mach-imx/clk-pfd.c
@@ -109,12 +109,23 @@ static int clk_pfd_set_rate(struct clk_hw *hw, unsigned long rate,
return 0;
}
+static int clk_pfd_is_enabled(struct clk_hw *hw)
+{
+ struct clk_pfd *pfd = to_clk_pfd(hw);
+
+ if (readl_relaxed(pfd->reg) & (1 << ((pfd->idx + 1) * 8 - 1)))
+ return 0;
+
+ return 1;
+}
+
static const struct clk_ops clk_pfd_ops = {
.enable = clk_pfd_enable,
.disable = clk_pfd_disable,
.recalc_rate = clk_pfd_recalc_rate,
.round_rate = clk_pfd_round_rate,
.set_rate = clk_pfd_set_rate,
+ .is_enabled = clk_pfd_is_enabled,
};
struct clk *imx_clk_pfd(const char *name, const char *parent_name,