diff options
Diffstat (limited to 'drivers/power/domain/ti-sci-power-domain.c')
| -rw-r--r-- | drivers/power/domain/ti-sci-power-domain.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/drivers/power/domain/ti-sci-power-domain.c b/drivers/power/domain/ti-sci-power-domain.c index aafde62cbf..b9cd37b612 100644 --- a/drivers/power/domain/ti-sci-power-domain.c +++ b/drivers/power/domain/ti-sci-power-domain.c @@ -13,6 +13,7 @@ #include <errno.h> #include <power-domain-uclass.h> #include <linux/soc/ti/ti_sci_protocol.h> +#include <dt-bindings/soc/ti,sci_pm_domain.h> /** * struct ti_sci_power_domain_data - pm domain controller information structure @@ -56,11 +57,16 @@ static int ti_sci_power_domain_on(struct power_domain *pd) struct ti_sci_power_domain_data *data = dev_get_priv(pd->dev); const struct ti_sci_handle *sci = data->sci; const struct ti_sci_dev_ops *dops = &sci->ops.dev_ops; + u8 flags = (uintptr_t)pd->priv; int ret; debug("%s(pd=%p)\n", __func__, pd); - ret = dops->get_device(sci, pd->id); + if (flags & TI_SCI_PD_EXCLUSIVE) + ret = dops->get_device_exclusive(sci, pd->id); + else + ret = dops->get_device(sci, pd->id); + if (ret) dev_err(power_domain->dev, "%s: get_device failed (%d)\n", __func__, ret); @@ -85,6 +91,28 @@ static int ti_sci_power_domain_off(struct power_domain *pd) return ret; } +static int ti_sci_power_domain_of_xlate(struct power_domain *pd, + struct ofnode_phandle_args *args) +{ + u8 flags; + + debug("%s(power_domain=%p)\n", __func__, pd); + + if (args->args_count < 1) { + debug("Invalid args_count: %d\n", args->args_count); + return -EINVAL; + } + + pd->id = args->args[0]; + /* By default request for device exclusive */ + flags = TI_SCI_PD_EXCLUSIVE; + if (args->args_count == 2) + flags = args->args[1] & TI_SCI_PD_EXCLUSIVE; + pd->priv = (void *)(uintptr_t)flags; + + return 0; +} + static const struct udevice_id ti_sci_power_domain_of_match[] = { { .compatible = "ti,sci-pm-domain" }, { /* sentinel */ } @@ -95,6 +123,7 @@ static struct power_domain_ops ti_sci_power_domain_ops = { .free = ti_sci_power_domain_free, .on = ti_sci_power_domain_on, .off = ti_sci_power_domain_off, + .of_xlate = ti_sci_power_domain_of_xlate, }; U_BOOT_DRIVER(ti_sci_pm_domains) = { |