diff options
Diffstat (limited to 'arch/arm/mach-omap1')
-rw-r--r-- | arch/arm/mach-omap1/clock.c | 32 | ||||
-rw-r--r-- | arch/arm/mach-omap1/clock.h | 10 |
2 files changed, 17 insertions, 25 deletions
diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c index ccf989f4aa7..dafe4f71d15 100644 --- a/arch/arm/mach-omap1/clock.c +++ b/arch/arm/mach-omap1/clock.c @@ -156,27 +156,25 @@ __u32 arm_idlect1_mask; * Omap1 specific clock functions *-------------------------------------------------------------------------*/ -static void omap1_watchdog_recalc(struct clk * clk) +static unsigned long omap1_watchdog_recalc(struct clk *clk) { - clk->rate = clk->parent->rate / 14; + return clk->parent->rate / 14; } -static void omap1_uart_recalc(struct clk * clk) +static unsigned long omap1_uart_recalc(struct clk *clk) { unsigned int val = __raw_readl(clk->enable_reg); - if (val & clk->enable_bit) - clk->rate = 48000000; - else - clk->rate = 12000000; + return val & clk->enable_bit ? 48000000 : 12000000; } -static void omap1_sossi_recalc(struct clk *clk) +static unsigned long omap1_sossi_recalc(struct clk *clk) { u32 div = omap_readl(MOD_CONF_CTRL_1); div = (div >> 17) & 0x7; div++; - clk->rate = clk->parent->rate / div; + + return clk->parent->rate / div; } static int omap1_clk_enable_dsp_domain(struct clk *clk) @@ -344,19 +342,15 @@ static int calc_dsor_exp(struct clk *clk, unsigned long rate) return dsor_exp; } -static void omap1_ckctl_recalc(struct clk * clk) +static unsigned long omap1_ckctl_recalc(struct clk *clk) { - int dsor; - /* Calculate divisor encoded as 2-bit exponent */ - dsor = 1 << (3 & (omap_readw(ARM_CKCTL) >> clk->rate_offset)); + int dsor = 1 << (3 & (omap_readw(ARM_CKCTL) >> clk->rate_offset)); - if (unlikely(clk->rate == clk->parent->rate / dsor)) - return; /* No change, quick exit */ - clk->rate = clk->parent->rate / dsor; + return clk->parent->rate / dsor; } -static void omap1_ckctl_recalc_dsp_domain(struct clk * clk) +static unsigned long omap1_ckctl_recalc_dsp_domain(struct clk *clk) { int dsor; @@ -371,9 +365,7 @@ static void omap1_ckctl_recalc_dsp_domain(struct clk * clk) dsor = 1 << (3 & (__raw_readw(DSP_CKCTL) >> clk->rate_offset)); omap1_clk_disable(&api_ck.clk); - if (unlikely(clk->rate == clk->parent->rate / dsor)) - return; /* No change, quick exit */ - clk->rate = clk->parent->rate / dsor; + return clk->parent->rate / dsor; } /* MPU virtual clock functions */ diff --git a/arch/arm/mach-omap1/clock.h b/arch/arm/mach-omap1/clock.h index 28bc74e93e8..17f87427125 100644 --- a/arch/arm/mach-omap1/clock.h +++ b/arch/arm/mach-omap1/clock.h @@ -13,14 +13,14 @@ #ifndef __ARCH_ARM_MACH_OMAP1_CLOCK_H #define __ARCH_ARM_MACH_OMAP1_CLOCK_H -static void omap1_ckctl_recalc(struct clk * clk); -static void omap1_watchdog_recalc(struct clk * clk); +static unsigned long omap1_ckctl_recalc(struct clk *clk); +static unsigned long omap1_watchdog_recalc(struct clk *clk); static int omap1_set_sossi_rate(struct clk *clk, unsigned long rate); -static void omap1_sossi_recalc(struct clk *clk); -static void omap1_ckctl_recalc_dsp_domain(struct clk * clk); +static unsigned long omap1_sossi_recalc(struct clk *clk); +static unsigned long omap1_ckctl_recalc_dsp_domain(struct clk *clk); static int omap1_clk_set_rate_dsp_domain(struct clk * clk, unsigned long rate); static int omap1_set_uart_rate(struct clk * clk, unsigned long rate); -static void omap1_uart_recalc(struct clk * clk); +static unsigned long omap1_uart_recalc(struct clk *clk); static int omap1_set_ext_clk_rate(struct clk * clk, unsigned long rate); static long omap1_round_ext_clk_rate(struct clk * clk, unsigned long rate); static void omap1_init_ext_clk(struct clk * clk); |