diff options
Diffstat (limited to 'drivers/power/domain/power-domain-uclass.c')
| -rw-r--r-- | drivers/power/domain/power-domain-uclass.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/power/domain/power-domain-uclass.c b/drivers/power/domain/power-domain-uclass.c index 2ea0ff24c7..80df5aff50 100644 --- a/drivers/power/domain/power-domain-uclass.c +++ b/drivers/power/domain/power-domain-uclass.c @@ -7,6 +7,7 @@ #include <dm.h> #include <power-domain.h> #include <power-domain-uclass.h> +#include <dm/device-internal.h> static inline struct power_domain_ops *power_domain_dev_ops(struct udevice *dev) { @@ -107,6 +108,47 @@ int power_domain_off(struct power_domain *power_domain) return ops->off(power_domain); } +#if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) +static int dev_power_domain_ctrl(struct udevice *dev, bool on) +{ + struct power_domain pd; + int i, count, ret = 0; + + count = dev_count_phandle_with_args(dev, "power-domains", + "#power-domain-cells"); + for (i = 0; i < count; i++) { + ret = power_domain_get_by_index(dev, &pd, i); + if (ret) + return ret; + if (on) + ret = power_domain_on(&pd); + else + ret = power_domain_off(&pd); + } + + /* + * power_domain_get() bound the device, thus + * we must remove it again to prevent unbinding + * active devices (which would result in unbind + * error). + */ + if (count > 0 && !on) + device_remove(pd.dev, DM_REMOVE_NORMAL); + + return ret; +} + +int dev_power_domain_on(struct udevice *dev) +{ + return dev_power_domain_ctrl(dev, true); +} + +int dev_power_domain_off(struct udevice *dev) +{ + return dev_power_domain_ctrl(dev, false); +} +#endif + UCLASS_DRIVER(power_domain) = { .id = UCLASS_POWER_DOMAIN, .name = "power_domain", |