1 files changed, 59 insertions, 0 deletions
diff --git a/drivers/gpu/drm/imagination/pvr_power.h b/drivers/gpu/drm/imagination/pvr_power.h
new file mode 100644
index 000000000000..b853d092242c
--- /dev/null
+++ b/drivers/gpu/drm/imagination/pvr_power.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+/* Copyright (c) 2023 Imagination Technologies Ltd. */
+
+#ifndef PVR_POWER_H
+#define PVR_POWER_H
+
+#include "pvr_device.h"
+
+#include <linux/mutex.h>
+#include <linux/pm_runtime.h>
+
+int pvr_watchdog_init(struct pvr_device *pvr_dev);
+void pvr_watchdog_fini(struct pvr_device *pvr_dev);
+
+void pvr_device_lost(struct pvr_device *pvr_dev);
+
+bool pvr_power_is_idle(struct pvr_device *pvr_dev);
+
+int pvr_power_device_suspend(struct device *dev);
+int pvr_power_device_resume(struct device *dev);
+int pvr_power_device_idle(struct device *dev);
+
+int pvr_power_reset(struct pvr_device *pvr_dev, bool hard_reset);
+
+static __always_inline int
+pvr_power_get(struct pvr_device *pvr_dev)
+{
+	struct drm_device *drm_dev = from_pvr_device(pvr_dev);
+
+	return pm_runtime_resume_and_get(drm_dev->dev);
+}
+
+static __always_inline int
+pvr_power_put(struct pvr_device *pvr_dev)
+{
+	struct drm_device *drm_dev = from_pvr_device(pvr_dev);
+
+	return pm_runtime_put(drm_dev->dev);
+}
+
+int pvr_power_domains_init(struct pvr_device *pvr_dev);
+void pvr_power_domains_fini(struct pvr_device *pvr_dev);
+
+/**
+ * struct pvr_power_sequence_ops - Platform specific power sequence operations.
+ * @init: Pointer to the platform-specific initialization function.
+ * @power_on: Pointer to the platform-specific power on function.
+ * @power_off: Pointer to the platform-specific power off function.
+ */
+struct pvr_power_sequence_ops {
+	int (*init)(struct pvr_device *pvr_dev);
+	int (*power_on)(struct pvr_device *pvr_dev);
+	int (*power_off)(struct pvr_device *pvr_dev);
+};
+
+extern const struct pvr_power_sequence_ops pvr_power_sequence_ops_manual;
+extern const struct pvr_power_sequence_ops pvr_power_sequence_ops_pwrseq;
+
+#endif /* PVR_POWER_H */