9952f6918d
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 228 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528171438.107155473@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
74 lines
2 KiB
C
74 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* SCPI Message Protocol driver header
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*
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* Copyright (C) 2014 ARM Ltd.
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*/
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#include <linux/types.h>
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struct scpi_opp {
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u32 freq;
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u32 m_volt;
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} __packed;
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struct scpi_dvfs_info {
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unsigned int count;
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unsigned int latency; /* in nanoseconds */
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struct scpi_opp *opps;
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};
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enum scpi_sensor_class {
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TEMPERATURE,
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VOLTAGE,
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CURRENT,
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POWER,
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ENERGY,
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};
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struct scpi_sensor_info {
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u16 sensor_id;
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u8 class;
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u8 trigger_type;
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char name[20];
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} __packed;
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/**
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* struct scpi_ops - represents the various operations provided
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* by SCP through SCPI message protocol
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* @get_version: returns the major and minor revision on the SCPI
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* message protocol
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* @clk_get_range: gets clock range limit(min - max in Hz)
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* @clk_get_val: gets clock value(in Hz)
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* @clk_set_val: sets the clock value, setting to 0 will disable the
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* clock (if supported)
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* @dvfs_get_idx: gets the Operating Point of the given power domain.
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* OPP is an index to the list return by @dvfs_get_info
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* @dvfs_set_idx: sets the Operating Point of the given power domain.
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* OPP is an index to the list return by @dvfs_get_info
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* @dvfs_get_info: returns the DVFS capabilities of the given power
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* domain. It includes the OPP list and the latency information
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*/
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struct scpi_ops {
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u32 (*get_version)(void);
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int (*clk_get_range)(u16, unsigned long *, unsigned long *);
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unsigned long (*clk_get_val)(u16);
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int (*clk_set_val)(u16, unsigned long);
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int (*dvfs_get_idx)(u8);
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int (*dvfs_set_idx)(u8, u8);
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struct scpi_dvfs_info *(*dvfs_get_info)(u8);
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int (*device_domain_id)(struct device *);
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int (*get_transition_latency)(struct device *);
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int (*add_opps_to_device)(struct device *);
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int (*sensor_get_capability)(u16 *sensors);
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int (*sensor_get_info)(u16 sensor_id, struct scpi_sensor_info *);
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int (*sensor_get_value)(u16, u64 *);
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int (*device_get_power_state)(u16);
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int (*device_set_power_state)(u16, u8);
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};
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#if IS_REACHABLE(CONFIG_ARM_SCPI_PROTOCOL)
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struct scpi_ops *get_scpi_ops(void);
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#else
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static inline struct scpi_ops *get_scpi_ops(void) { return NULL; }
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#endif
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