diff --git a/src/platform/imx8/include/platform/lib/pm_runtime.h b/src/platform/imx8/include/platform/lib/pm_runtime.h
deleted file mode 100644
index f2b85b2e9d4e..000000000000
--- a/src/platform/imx8/include/platform/lib/pm_runtime.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/* SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright 2019 NXP
- *
- * Author: Daniel Baluta <daniel.baluta@nxp.com>
- */
-
-#ifdef __SOF_LIB_PM_RUNTIME_H__
-
-#ifndef __PLATFORM_LIB_PM_RUNTIME_H__
-#define __PLATFORM_LIB_PM_RUNTIME_H__
-
-#include <stdint.h>
-
-struct pm_runtime_data;
-
-/**
- * \brief Initializes platform specific runtime power management.
- * \param[in,out] prd Runtime power management data.
- */
-static inline void platform_pm_runtime_init(struct pm_runtime_data *prd) { }
-
-/**
- * \brief Retrieves platform specific power management resource.
- *
- * \param[in] context Type of power management context.
- * \param[in] index Index of the device.
- * \param[in] flags Flags, set of RPM_...
- */
-static inline void platform_pm_runtime_get(uint32_t context, uint32_t index,
-					   uint32_t flags) { }
-
-/**
- * \brief Releases platform specific power management resource.
- *
- * \param[in] context Type of power management context.
- * \param[in] index Index of the device.
- * \param[in] flags Flags, set of RPM_...
- */
-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
-
-#error "This file shouldn't be included from outside of sof/lib/pm_runtime.h"
-
-#endif /* __SOF_LIB_PM_RUNTIME_H__ */
diff --git a/src/platform/imx8ulp/include/platform/lib/pm_runtime.h b/src/platform/imx8ulp/include/platform/lib/pm_runtime.h
deleted file mode 100644
index e3e246cf8301..000000000000
--- a/src/platform/imx8ulp/include/platform/lib/pm_runtime.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/* SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright 2021 NXP
- *
- * Author: Daniel Baluta <daniel.baluta@nxp.com>
- * Author: Zhang Peng <peng.zhang_8@nxp.com>
- */
-
-#ifdef __SOF_LIB_PM_RUNTIME_H__
-
-#ifndef __PLATFORM_LIB_PM_RUNTIME_H__
-#define __PLATFORM_LIB_PM_RUNTIME_H__
-
-#include <stdint.h>
-
-struct pm_runtime_data;
-
-/**
- * \brief Initializes platform specific runtime power management.
- * \param[in,out] prd Runtime power management data.
- */
-static inline void platform_pm_runtime_init(struct pm_runtime_data *prd) { }
-
-/**
- * \brief Retrieves platform specific power management resource.
- *
- * \param[in] context Type of power management context.
- * \param[in] index Index of the device.
- * \param[in] flags Flags, set of RPM_...
- */
-static inline void platform_pm_runtime_get(uint32_t context, uint32_t index,
-					   uint32_t flags) { }
-
-/**
- * \brief Releases platform specific power management resource.
- *
- * \param[in] context Type of power management context.
- * \param[in] index Index of the device.
- * \param[in] flags Flags, set of RPM_...
- */
-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
-
-#error "This file shouldn't be included from outside of sof/lib/pm_runtime.h"
-
-#endif /* __SOF_LIB_PM_RUNTIME_H__ */
diff --git a/src/platform/imx93_a55/include/platform/lib/pm_runtime.h b/src/platform/imx93_a55/include/platform/lib/pm_runtime.h
deleted file mode 100644
index 8665518b08d5..000000000000
--- a/src/platform/imx93_a55/include/platform/lib/pm_runtime.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/* SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright 2023 NXP
- */
-
-#ifdef __SOF_LIB_PM_RUNTIME_H__
-
-#ifndef __PLATFORM_LIB_PM_RUNTIME_H__
-#define __PLATFORM_LIB_PM_RUNTIME_H__
-
-/* TODO: is this required? Should this be implemented using Zephyr PM
- * API?
- */
-#include <stdint.h>
-
-struct pm_runtime_data;
-
-static inline void platform_pm_runtime_init(struct pm_runtime_data *prd)
-{
-}
-
-static inline void platform_pm_runtime_get(uint32_t context,
-					   uint32_t index,
-					   uint32_t flags)
-{
-}
-
-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
-
-#error "This file shouldn't be included from outside of sof/lib/pm_runtime.h"
-
-#endif /* __SOF_LIB_PM_RUNTIME_H__ */