Add samsung specific changes

include/linux/scmi_plh.h

@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * SCMI Vendor Protocols header
+ *
+ * Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#ifndef _SCMI_PLH_VENDOR_H
+#define _SCMI_PLH_VENDOR_H
+
+#include <linux/bitfield.h>
+#include <linux/device.h>
+#include <linux/types.h>
+
+#define SCMI_PROTOCOL_PLH      0x81
+
+enum plh_features {
+	PERF_LOCK_SCROLL,
+	PERF_LOCK_LAUNCH,
+};
+
+struct scmi_protocol_handle;
+extern struct scmi_device *get_plh_scmi_device(void);
+
+/**
+ * struct scmi_plh_vendor_ops - represents the various operations provided
+ *	by SCMI PLH Protocol
+ *
+ * @init_plh_ipc_freq_tbl: initialize plh ipc freq voting table in cpucp
+ * @start_plh: starts plh in cpucp
+ * @stop_plh: stops plh in cpucp
+ * @set_plh_sample_ms: configure the sampling duration of plh in cpucp
+ * @set_plh_log_level: configure the supported log_level of plh in cpucp
+ */
+struct scmi_plh_vendor_ops {
+	int (*init_plh_ipc_freq_tbl)(const struct scmi_protocol_handle *ph,
+				u16 *p_init_args, u16 init_len, enum plh_features feature);
+	int (*start_plh)(const struct scmi_protocol_handle *ph, u16 fps, enum plh_features feature);
+	int (*stop_plh)(const struct scmi_protocol_handle *ph, enum plh_features feature);
+	int (*set_plh_sample_ms)(const struct scmi_protocol_handle *ph,
+				u16 sample_ms, enum plh_features feature);
+	int (*set_plh_log_level)(const struct scmi_protocol_handle *ph,
+				u16 log_level, enum plh_features feature);
+};
+
+#endif