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soc: rockchip: power-domain: export pd on/off and pd status

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Some special applications of video may require:
rockchip_pmu_pd_on(dev)---> force power on pd
rockchip_pmu_pd_off(dev)---> force power down pd
rockchip_pmu_pd_is_on(dev)---> pd status

Change-Id: I264d76559aef0b0540130bf29a4635a3f5380a7c
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
This commit is contained in:
Elaine Zhang
2020-03-19 16:22:05 +08:00
committed by Tao Huang
parent 9163d61374
commit 43a0c422db
1 changed files with 59 additions and 0 deletions
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59
drivers/soc/rockchip/pm_domains.c
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@@ -499,6 +499,65 @@ static int rockchip_pd_power_off(struct generic_pm_domain *domain)
return rockchip_pd_power(pd, false);
}
int rockchip_pmu_pd_on(struct device *dev)
{
struct generic_pm_domain *genpd;
struct rockchip_pm_domain *pd;
if (IS_ERR_OR_NULL(dev))
return -EINVAL;
if (IS_ERR_OR_NULL(dev->pm_domain))
return -EINVAL;
genpd = pd_to_genpd(dev->pm_domain);
pd = to_rockchip_pd(genpd);
return rockchip_pd_power(pd, true);
}
EXPORT_SYMBOL(rockchip_pmu_pd_on);
int rockchip_pmu_pd_off(struct device *dev)
{
struct generic_pm_domain *genpd;
struct rockchip_pm_domain *pd;
if (IS_ERR_OR_NULL(dev))
return -EINVAL;
if (IS_ERR_OR_NULL(dev->pm_domain))
return -EINVAL;
genpd = pd_to_genpd(dev->pm_domain);
pd = to_rockchip_pd(genpd);
return rockchip_pd_power(pd, false);
}
EXPORT_SYMBOL(rockchip_pmu_pd_off);
bool rockchip_pmu_pd_is_on(struct device *dev)
{
struct generic_pm_domain *genpd;
struct rockchip_pm_domain *pd;
bool is_on;
if (IS_ERR_OR_NULL(dev))
return false;
if (IS_ERR_OR_NULL(dev->pm_domain))
return false;
genpd = pd_to_genpd(dev->pm_domain);
pd = to_rockchip_pd(genpd);
rockchip_pmu_lock(pd);
is_on = rockchip_pmu_domain_is_on(pd);
rockchip_pmu_unlock(pd);
return is_on;
}
EXPORT_SYMBOL(rockchip_pmu_pd_is_on);
static int rockchip_pd_attach_dev(struct generic_pm_domain *genpd,
struct device *dev)
{