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
Signed-off-by: Caesar Wang <w...@rock-chips.com>
Signed-off-by: Jeffy Chen <jeffy.c...@rock-chips.com>
Signed-off-by: Randy Li <ay...@soulik.info>
---
 drivers/soc/rockchip/pm_domains.c | 23 +++++++++++++++++++++++
 include/soc/rockchip/pm_domains.h | 18 ++++++++++++++++++
 2 files changed, 41 insertions(+)
 create mode 100644 include/soc/rockchip/pm_domains.h

diff --git a/drivers/soc/rockchip/pm_domains.c 
b/drivers/soc/rockchip/pm_domains.c
index 847c7c482b26..3e2e252cb64b 100644
--- a/drivers/soc/rockchip/pm_domains.c
+++ b/drivers/soc/rockchip/pm_domains.c
@@ -199,6 +199,29 @@ 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;
diff --git a/include/soc/rockchip/pm_domains.h 
b/include/soc/rockchip/pm_domains.h
new file mode 100644
index 000000000000..690db6118636
--- /dev/null
+++ b/include/soc/rockchip/pm_domains.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __SOC_ROCKCHIP_PM_DOMAINS_H
+#define __SOC_ROCKCHIP_PM_DOMAINS_H
+
+#include <linux/errno.h>
+
+struct device;
+
+#ifdef CONFIG_ROCKCHIP_PM_DOMAINS
+int rockchip_pmu_idle_request(struct device *dev, bool idle);
+#else
+static inline int rockchip_pmu_idle_request(struct device *dev, bool idle)
+{
+       return -ENOTSUPP;
+}
+#endif
+
+#endif
-- 
2.20.1

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