diff options
Diffstat (limited to 'arch/arm/mach-imx/clk-pfd.c')
| -rw-r--r-- | arch/arm/mach-imx/clk-pfd.c | 11 |
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, |