From 80c1460f9b82f9e16d7bc17d36b3892f41287812 Mon Sep 17 00:00:00 2001
From: Marcin Maka <marcin.maka@linux.intel.com>
Date: Wed, 4 Sep 2019 13:15:17 +0200
Subject: [PATCH] pm-runtime: add pm runtime active, enable, disable interfaces

PM enable and disable is an interface to control the power
management of a resource.

PM is_active is an interface to query the pm management status
of the resource.

Signed-off-by: Marcin Maka <marcin.maka@linux.intel.com>
---
 src/include/sof/lib/pm_runtime.h              | 26 +++++++++++++++
 src/lib/pm_runtime.c                          | 32 +++++++++++++++++++
 .../include/platform/lib/pm_runtime.h         |  5 +++
 .../include/platform/lib/pm_runtime.h         | 12 +++++++
 .../include/platform/lib/pm_runtime.h         |  6 ++++
 .../haswell/include/platform/lib/pm_runtime.h | 12 +++++++
 .../icelake/include/platform/lib/pm_runtime.h |  6 ++++
 .../imx8/include/platform/lib/pm_runtime.h    | 12 +++++++
 src/platform/intel/cavs/lib/pm_runtime.c      | 21 ++++++++++++
 .../include/platform/lib/pm_runtime.h         |  6 ++++
 .../include/platform/lib/pm_runtime.h         |  6 ++++
 11 files changed, 144 insertions(+)

diff --git a/src/include/sof/lib/pm_runtime.h b/src/include/sof/lib/pm_runtime.h
index 2b6dcb48a..6f80e955d 100644
--- a/src/include/sof/lib/pm_runtime.h
+++ b/src/include/sof/lib/pm_runtime.h
@@ -93,6 +93,32 @@ void pm_runtime_put(enum pm_runtime_context context, uint32_t index);
  */
 void pm_runtime_put_sync(enum pm_runtime_context context, uint32_t index);
 
+/**
+ * \brief Enables power management operations for the resource.
+ *
+ * \param[in] context Type of power management context.
+ * \param[in] index Index of the device.
+ */
+void pm_runtime_enable(enum pm_runtime_context context, uint32_t index);
+
+/**
+ * \brief Disables power management operations for the resource.
+ *
+ * \param[in] context Type of power management context.
+ * \param[in] index Index of the device.
+ */
+void pm_runtime_disable(enum pm_runtime_context context, uint32_t index);
+
+/**
+ * \brief Reports state of the power managed resource.
+ *
+ * @param context Type of power management context.
+ * @param index Index of the resource.
+ *
+ * @return true if the resource is active or pm disabled, false otherwise.
+ */
+bool pm_runtime_is_active(enum pm_runtime_context context, uint32_t index);
+
 /** @}*/
 
 #endif /* __SOF_LIB_PM_RUNTIME_H__ */
diff --git a/src/lib/pm_runtime.c b/src/lib/pm_runtime.c
index b7ac1cc05..e716d0768 100644
--- a/src/lib/pm_runtime.c
+++ b/src/lib/pm_runtime.c
@@ -72,3 +72,35 @@ void pm_runtime_put_sync(enum pm_runtime_context context, uint32_t index)
 		break;
 	}
 }
+
+void pm_runtime_enable(enum pm_runtime_context context, uint32_t index)
+{
+	tracev_pm("pm_runtime_enable()");
+
+	switch (context) {
+	default:
+		platform_pm_runtime_enable(context, index);
+		break;
+	}
+}
+
+void pm_runtime_disable(enum pm_runtime_context context, uint32_t index)
+{
+	tracev_pm("pm_runtime_disable()");
+
+	switch (context) {
+	default:
+		platform_pm_runtime_disable(context, index);
+		break;
+	}
+}
+
+bool pm_runtime_is_active(enum pm_runtime_context context, uint32_t index)
+{
+	tracev_pm("pm_runtime_is_active()");
+
+	switch (context) {
+	default:
+		return platform_pm_runtime_is_active(context, index);
+	}
+}
diff --git a/src/platform/apollolake/include/platform/lib/pm_runtime.h b/src/platform/apollolake/include/platform/lib/pm_runtime.h
index 95962289e..74670e099 100644
--- a/src/platform/apollolake/include/platform/lib/pm_runtime.h
+++ b/src/platform/apollolake/include/platform/lib/pm_runtime.h
@@ -44,6 +44,11 @@ void platform_pm_runtime_get(uint32_t context, uint32_t index, uint32_t flags);
  */
 void platform_pm_runtime_put(uint32_t context, uint32_t index, uint32_t flags);
 
+void platform_pm_runtime_enable(uint32_t context, uint32_t index);
+
+void platform_pm_runtime_disable(uint32_t context, uint32_t index);
+
+bool platform_pm_runtime_is_active(uint32_t context, uint32_t index);
 
 /**
  * \brief Power gates platform specific hardware resources.
diff --git a/src/platform/baytrail/include/platform/lib/pm_runtime.h b/src/platform/baytrail/include/platform/lib/pm_runtime.h
index dad9b5be5..16deb3e91 100644
--- a/src/platform/baytrail/include/platform/lib/pm_runtime.h
+++ b/src/platform/baytrail/include/platform/lib/pm_runtime.h
@@ -46,6 +46,18 @@ static inline void platform_pm_runtime_get(uint32_t context, uint32_t index,
 static inline void platform_pm_runtime_put(uint32_t context, uint32_t index,
 					   uint32_t flags) { }
 
+static inline void platform_pm_runtime_enable(uint32_t context,
+					      uint32_t index) {}
+
+static inline void platform_pm_runtime_disable(uint32_t context,
+					       uint32_t index) {}
+
+static inline bool platform_pm_runtime_is_active(uint32_t context,
+						 uint32_t index)
+{
+	return false;
+}
+
 #endif /* __PLATFORM_LIB_PM_RUNTIME_H__ */
 
 #else
diff --git a/src/platform/cannonlake/include/platform/lib/pm_runtime.h b/src/platform/cannonlake/include/platform/lib/pm_runtime.h
index b93d1a521..edda6e691 100644
--- a/src/platform/cannonlake/include/platform/lib/pm_runtime.h
+++ b/src/platform/cannonlake/include/platform/lib/pm_runtime.h
@@ -43,6 +43,12 @@ void platform_pm_runtime_get(uint32_t context, uint32_t index, uint32_t flags);
  */
 void platform_pm_runtime_put(uint32_t context, uint32_t index, uint32_t flags);
 
+void platform_pm_runtime_enable(uint32_t context, uint32_t index);
+
+void platform_pm_runtime_disable(uint32_t context, uint32_t index);
+
+bool platform_pm_runtime_is_active(uint32_t context, uint32_t index);
+
 /**
  * \brief Power gates platform specific hardware resources.
  */
diff --git a/src/platform/haswell/include/platform/lib/pm_runtime.h b/src/platform/haswell/include/platform/lib/pm_runtime.h
index a28e143ab..7ab3b8458 100644
--- a/src/platform/haswell/include/platform/lib/pm_runtime.h
+++ b/src/platform/haswell/include/platform/lib/pm_runtime.h
@@ -46,6 +46,18 @@ static inline void platform_pm_runtime_get(uint32_t context, uint32_t index,
 static inline void platform_pm_runtime_put(uint32_t context, uint32_t index,
 					   uint32_t flags) { }
 
+static inline void platform_pm_runtime_enable(uint32_t context,
+					      uint32_t index) {}
+
+static inline void platform_pm_runtime_disable(uint32_t context,
+					       uint32_t index) {}
+
+static inline bool platform_pm_runtime_is_active(uint32_t context,
+						 uint32_t index)
+{
+	return false;
+}
+
 #endif /* __PLATFORM_LIB_PM_RUNTIME_H__ */
 
 #else
diff --git a/src/platform/icelake/include/platform/lib/pm_runtime.h b/src/platform/icelake/include/platform/lib/pm_runtime.h
index cf4c4186b..5712097e9 100644
--- a/src/platform/icelake/include/platform/lib/pm_runtime.h
+++ b/src/platform/icelake/include/platform/lib/pm_runtime.h
@@ -43,6 +43,12 @@ void platform_pm_runtime_get(uint32_t context, uint32_t index, uint32_t flags);
  */
 void platform_pm_runtime_put(uint32_t context, uint32_t index, uint32_t flags);
 
+void platform_pm_runtime_enable(uint32_t context, uint32_t index);
+
+void platform_pm_runtime_disable(uint32_t context, uint32_t index);
+
+bool platform_pm_runtime_is_active(uint32_t context, uint32_t index);
+
 #endif /* __PLATFORM_LIB_PM_RUNTIME_H__ */
 
 #else
diff --git a/src/platform/imx8/include/platform/lib/pm_runtime.h b/src/platform/imx8/include/platform/lib/pm_runtime.h
index 56335108f..f2b85b2e9 100644
--- a/src/platform/imx8/include/platform/lib/pm_runtime.h
+++ b/src/platform/imx8/include/platform/lib/pm_runtime.h
@@ -40,6 +40,18 @@ static inline void platform_pm_runtime_get(uint32_t context, uint32_t index,
 static inline void platform_pm_runtime_put(uint32_t context, uint32_t index,
 					   uint32_t flags) { }
 
+static inline void platform_pm_runtime_enable(uint32_t context,
+					      uint32_t index) {}
+
+static inline void platform_pm_runtime_disable(uint32_t context,
+					       uint32_t index) {}
+
+static inline bool platform_pm_runtime_is_active(uint32_t context,
+						 uint32_t index)
+{
+	return false;
+}
+
 #endif /* __PLATFORM_LIB_PM_RUNTIME_H__ */
 
 #else
diff --git a/src/platform/intel/cavs/lib/pm_runtime.c b/src/platform/intel/cavs/lib/pm_runtime.c
index 263ccb505..d577ff117 100644
--- a/src/platform/intel/cavs/lib/pm_runtime.c
+++ b/src/platform/intel/cavs/lib/pm_runtime.c
@@ -351,6 +351,27 @@ void platform_pm_runtime_put(enum pm_runtime_context context, uint32_t index,
 	}
 }
 
+void platform_pm_runtime_enable(uint32_t context, uint32_t index)
+{
+	switch (context) {
+	default:
+		break;
+	}
+}
+
+void platform_pm_runtime_disable(uint32_t context, uint32_t index)
+{
+	switch (context) {
+	default:
+		break;
+	}
+}
+
+bool platform_pm_runtime_is_active(uint32_t context, uint32_t index)
+{
+	return false;
+}
+
 #if CONFIG_APOLLOLAKE || CONFIG_CANNONLAKE
 void platform_pm_runtime_power_off(void)
 {
diff --git a/src/platform/suecreek/include/platform/lib/pm_runtime.h b/src/platform/suecreek/include/platform/lib/pm_runtime.h
index 2f59a3246..ba2c6f85c 100644
--- a/src/platform/suecreek/include/platform/lib/pm_runtime.h
+++ b/src/platform/suecreek/include/platform/lib/pm_runtime.h
@@ -43,6 +43,12 @@ void platform_pm_runtime_get(uint32_t context, uint32_t index, uint32_t flags);
  */
 void platform_pm_runtime_put(uint32_t context, uint32_t index, uint32_t flags);
 
+void platform_pm_runtime_enable(uint32_t context, uint32_t index);
+
+void platform_pm_runtime_disable(uint32_t context, uint32_t index);
+
+bool platform_pm_runtime_is_active(uint32_t context, uint32_t index);
+
 #endif /* __PLATFORM_LIB_PM_RUNTIME_H__ */
 
 #else
diff --git a/src/platform/tigerlake/include/platform/lib/pm_runtime.h b/src/platform/tigerlake/include/platform/lib/pm_runtime.h
index 4fae2edef..7b4d83919 100644
--- a/src/platform/tigerlake/include/platform/lib/pm_runtime.h
+++ b/src/platform/tigerlake/include/platform/lib/pm_runtime.h
@@ -43,6 +43,12 @@ void platform_pm_runtime_get(uint32_t context, uint32_t index, uint32_t flags);
  */
 void platform_pm_runtime_put(uint32_t context, uint32_t index, uint32_t flags);
 
+void platform_pm_runtime_enable(uint32_t context, uint32_t index);
+
+void platform_pm_runtime_disable(uint32_t context, uint32_t index);
+
+bool platform_pm_runtime_is_active(uint32_t context, uint32_t index);
+
 #endif /* __PLATFORM_LIB_PM_RUNTIME_H__ */
 
 #else