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;
+}
+