OMAP2+: voltage: keep track of powerdomains in each voltagedomain

When a powerdomain is registered and it has an associated voltage domain,
add the powerdomain to the voltagedomain using voltdm_add_pwrdm().

Also add voltagedomain iterator helper functions to iterate over all
registered voltagedomains and all powerdomains associated with a
voltagedomain.

Modeled after a similar relationship between clockdomains and powerdomains.

Signed-off-by: Kevin Hilman <khilman@ti.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 984457d612b7..5164d587ef52 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -99,6 +99,8 @@ static int _pwrdm_register(struct powerdomain *pwrdm)
                 return -EINVAL;
         }
         pwrdm->voltdm.ptr = voltdm;
+        INIT_LIST_HEAD(&pwrdm->voltdm_node);
+        voltdm_add_pwrdm(voltdm, pwrdm);
 
         list_add(&pwrdm->node, &pwrdm_list);