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soc: rockchip: power-domain: export idle request

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We need to put the power status of HEVC IP into IDLE unless
we can't reset that IP or the SoC would crash down.
rockchip_pmu_idle_request(dev, true)---> enter idle
rockchip_pmu_idle_request(dev, false)---> exit idle

Change-Id: I76733efd2de4f7ee183c1b6bd1545d60038ee31b
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Randy Li <randy.li@rock-chips.com>
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
This commit is contained in:
Caesar Wang
2016-11-18 16:24:20 +08:00
committed by Tao Huang
parent 54c9a317b4
commit 3d4b748dd7
1 changed files with 23 additions and 0 deletions
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23
drivers/soc/rockchip/pm_domains.c
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@@ -198,6 +198,29 @@ static int rockchip_pmu_set_idle_request(struct rockchip_pm_domain *pd,
return 0;
}
int rockchip_pmu_idle_request(struct device *dev, bool idle)
{
struct generic_pm_domain *genpd;
struct rockchip_pm_domain *pd;
int ret;
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);
mutex_lock(&pd->pmu->mutex);
ret = rockchip_pmu_set_idle_request(pd, idle);
mutex_unlock(&pd->pmu->mutex);
return ret;
}
EXPORT_SYMBOL(rockchip_pmu_idle_request);
static int rockchip_pmu_save_qos(struct rockchip_pm_domain *pd)
{
int i;