diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-shmobile/clock.c | 13 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/include/mach/clock.h | 39 |
2 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/clock.c b/arch/arm/mach-shmobile/clock.c index e816ca9..ad7df62 100644 --- a/arch/arm/mach-shmobile/clock.c +++ b/arch/arm/mach-shmobile/clock.c @@ -23,6 +23,19 @@ #include <linux/init.h> #include <linux/sh_clk.h> #include <linux/export.h> +#include <mach/clock.h> +#include <mach/common.h> + +unsigned long shmobile_fixed_ratio_clk_recalc(struct clk *clk) +{ + struct clk_ratio *p = clk->priv; + + return clk->parent->rate / p->div * p->mul; +}; + +struct sh_clk_ops shmobile_fixed_ratio_clk_ops = { + .recalc = shmobile_fixed_ratio_clk_recalc, +}; int __init shmobile_clk_init(void) { diff --git a/arch/arm/mach-shmobile/include/mach/clock.h b/arch/arm/mach-shmobile/include/mach/clock.h new file mode 100644 index 0000000..76ac612 --- /dev/null +++ b/arch/arm/mach-shmobile/include/mach/clock.h @@ -0,0 +1,39 @@ +#ifndef CLOCK_H +#define CLOCK_H + +unsigned long shmobile_fixed_ratio_clk_recalc(struct clk *clk); +extern struct sh_clk_ops shmobile_fixed_ratio_clk_ops; + +/* clock ratio */ +struct clk_ratio { + int mul; + int div; +}; + +#define SH_CLK_RATIO(name, m, d) \ +static struct clk_ratio name ##_ratio = { \ + .mul = m, \ + .div = d, \ +} + +#define SH_FIXED_RATIO_CLKg(name, p, r) \ +struct clk name = { \ + .parent = &p, \ + .ops = &shmobile_fixed_ratio_clk_ops,\ + .priv = &r ## _ratio, \ +} + +#define SH_FIXED_RATIO_CLK(name, p, r) \ +static SH_FIXED_RATIO_CLKg(name, p, r); + +#define SH_FIXED_RATIO_CLK_SET(name, p, m, d) \ + SH_CLK_RATIO(name, m, d); \ + SH_FIXED_RATIO_CLK(name, p, name); + +#define SH_CLK_SET_RATIO(p, m, d) \ +{ \ + (p)->mul = m; \ + (p)->div = d; \ +} + +#endif |