diff options
| -rw-r--r-- | arch/arm/mach-omap2/clkt2xxx_apll.c | 35 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clock2xxx.h | 4 |
2 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/clkt2xxx_apll.c b/arch/arm/mach-omap2/clkt2xxx_apll.c index 1bd15275dbf9..76a958c6e5bc 100644 --- a/arch/arm/mach-omap2/clkt2xxx_apll.c +++ b/arch/arm/mach-omap2/clkt2xxx_apll.c @@ -39,6 +39,27 @@ /* Private functions */ #ifdef CONFIG_COMMON_CLK +/** + * omap2xxx_clk_apll_locked - is the APLL locked? + * @hw: struct clk_hw * of the APLL to check + * + * If the APLL IP block referred to by @hw indicates that it's locked, + * return true; otherwise, return false. + */ +static bool omap2xxx_clk_apll_locked(struct clk_hw *hw) +{ + struct clk_hw_omap *clk = to_clk_hw_omap(hw); + u32 r, apll_mask; + + apll_mask = EN_APLL_LOCKED << clk->enable_bit; + + r = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN); + + return ((r & apll_mask) == apll_mask) ? true : false; +} +#endif + +#ifdef CONFIG_COMMON_CLK int omap2_clk_apll96_enable(struct clk_hw *hw) #else static int _apll96_enable(struct clk *clk) @@ -110,6 +131,20 @@ static void _apll54_disable(struct clk *clk) omap2xxx_cm_apll54_disable(); } +#ifdef CONFIG_COMMON_CLK +unsigned long omap2_clk_apll54_recalc(struct clk_hw *hw, + unsigned long parent_rate) +{ + return (omap2xxx_clk_apll_locked(hw)) ? 54000000 : 0; +} + +unsigned long omap2_clk_apll96_recalc(struct clk_hw *hw, + unsigned long parent_rate) +{ + return (omap2xxx_clk_apll_locked(hw)) ? 96000000 : 0; +} +#endif + /* Public data */ #ifdef CONFIG_COMMON_CLK const struct clk_hw_omap_ops clkhwops_apll54 = { diff --git a/arch/arm/mach-omap2/clock2xxx.h b/arch/arm/mach-omap2/clock2xxx.h index 58581511d795..82147c49a8de 100644 --- a/arch/arm/mach-omap2/clock2xxx.h +++ b/arch/arm/mach-omap2/clock2xxx.h @@ -27,6 +27,10 @@ unsigned long omap2_dpllcore_recalc(struct clk_hw *hw, int omap2_reprogram_dpllcore(struct clk_hw *clk, unsigned long rate, unsigned long parent_rate); void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw); +unsigned long omap2_clk_apll54_recalc(struct clk_hw *hw, + unsigned long parent_rate); +unsigned long omap2_clk_apll96_recalc(struct clk_hw *hw, + unsigned long parent_rate); #else unsigned long omap2_table_mpu_recalc(struct clk *clk); int omap2_select_table_rate(struct clk *clk, unsigned long rate); |
