diff options
Diffstat (limited to 'arch/arm/mach-omap2/prm2xxx_3xxx.c')
| -rw-r--r-- | arch/arm/mach-omap2/prm2xxx_3xxx.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/prm2xxx_3xxx.c b/arch/arm/mach-omap2/prm2xxx_3xxx.c index bdddf5ca67c4..30517f5af707 100644 --- a/arch/arm/mach-omap2/prm2xxx_3xxx.c +++ b/arch/arm/mach-omap2/prm2xxx_3xxx.c @@ -20,6 +20,7 @@ #include "powerdomain.h" #include "prm2xxx_3xxx.h" #include "prm-regbits-24xx.h" +#include "clockdomain.h" /** * omap2_prm_is_hardreset_asserted - read the HW reset line state of @@ -208,3 +209,45 @@ int omap2_pwrdm_wait_transition(struct powerdomain *pwrdm) return 0; } +int omap2_clkdm_add_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + omap2_prm_set_mod_reg_bits((1 << clkdm2->dep_bit), + clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP); + return 0; +} + +int omap2_clkdm_del_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + omap2_prm_clear_mod_reg_bits((1 << clkdm2->dep_bit), + clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP); + return 0; +} + +int omap2_clkdm_read_wkdep(struct clockdomain *clkdm1, + struct clockdomain *clkdm2) +{ + return omap2_prm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs, + PM_WKDEP, (1 << clkdm2->dep_bit)); +} + +int omap2_clkdm_clear_all_wkdeps(struct clockdomain *clkdm) +{ + struct clkdm_dep *cd; + u32 mask = 0; + + for (cd = clkdm->wkdep_srcs; cd && cd->clkdm_name; cd++) { + if (!cd->clkdm) + continue; /* only happens if data is erroneous */ + + /* PRM accesses are slow, so minimize them */ + mask |= 1 << cd->clkdm->dep_bit; + atomic_set(&cd->wkdep_usecount, 0); + } + + omap2_prm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs, + PM_WKDEP); + return 0; +} + |