0c67f6b297
Pull more power management updates from Rafael Wysocki:
"These are operating performance points (OPP) framework updates mostly,
including support for interconnect bandwidth in the OPP core, plus a
few cpufreq changes, including boost support in the CPPC cpufreq
driver, an ACPI device power management fix and a hibernation code
cleanup.
Specifics:
- Add support for interconnect bandwidth to the OPP core (Georgi
Djakov, Saravana Kannan, Sibi Sankar, Viresh Kumar).
- Add support for regulator enable/disable to the OPP core (Kamil
Konieczny).
- Add boost support to the CPPC cpufreq driver (Xiongfeng Wang).
- Make the tegra186 cpufreq driver set the
CPUFREQ_NEED_INITIAL_FREQ_CHECK flag (Mian Yousaf Kaukab).
- Prevent the ACPI power management from using power resources with
devices where the list of power resources for power state D0 (full
power) is missing (Rafael Wysocki).
- Annotate a hibernation-related function with __init (Christophe
JAILLET)"
* tag 'pm-5.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PM: Avoid using power resources if there are none for D0
cpufreq: CPPC: add SW BOOST support
cpufreq: change '.set_boost' to act on one policy
PM: hibernate: Add __init annotation to swsusp_header_init()
opp: Don't parse icc paths unnecessarily
opp: Remove bandwidth votes when target_freq is zero
opp: core: add regulators enable and disable
opp: Reorder the code for !target_freq case
opp: Expose bandwidth information via debugfs
cpufreq: dt: Add support for interconnect bandwidth scaling
opp: Update the bandwidth on OPP frequency changes
opp: Add sanity checks in _read_opp_key()
opp: Add support for parsing interconnect bandwidth
cpufreq: tegra186: add CPUFREQ_NEED_INITIAL_FREQ_CHECK flag
OPP: Add helpers for reading the binding properties
dt-bindings: opp: Introduce opp-peak-kBps and opp-avg-kBps bindings
96 lines
2.1 KiB
C
96 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2018-2019, Linaro Ltd.
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* Author: Georgi Djakov <georgi.djakov@linaro.org>
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*/
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#ifndef __LINUX_INTERCONNECT_H
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#define __LINUX_INTERCONNECT_H
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#include <linux/mutex.h>
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#include <linux/types.h>
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/* macros for converting to icc units */
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#define Bps_to_icc(x) ((x) / 1000)
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#define kBps_to_icc(x) (x)
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#define MBps_to_icc(x) ((x) * 1000)
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#define GBps_to_icc(x) ((x) * 1000 * 1000)
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#define bps_to_icc(x) (1)
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#define kbps_to_icc(x) ((x) / 8 + ((x) % 8 ? 1 : 0))
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#define Mbps_to_icc(x) ((x) * 1000 / 8)
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#define Gbps_to_icc(x) ((x) * 1000 * 1000 / 8)
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struct icc_path;
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struct device;
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#if IS_ENABLED(CONFIG_INTERCONNECT)
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struct icc_path *icc_get(struct device *dev, const int src_id,
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const int dst_id);
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struct icc_path *of_icc_get(struct device *dev, const char *name);
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struct icc_path *devm_of_icc_get(struct device *dev, const char *name);
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struct icc_path *of_icc_get_by_index(struct device *dev, int idx);
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void icc_put(struct icc_path *path);
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int icc_enable(struct icc_path *path);
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int icc_disable(struct icc_path *path);
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int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw);
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void icc_set_tag(struct icc_path *path, u32 tag);
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const char *icc_get_name(struct icc_path *path);
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#else
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static inline struct icc_path *icc_get(struct device *dev, const int src_id,
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const int dst_id)
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{
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return NULL;
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}
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static inline struct icc_path *of_icc_get(struct device *dev,
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const char *name)
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{
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return NULL;
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}
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static inline struct icc_path *devm_of_icc_get(struct device *dev,
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const char *name)
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{
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return NULL;
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}
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static inline struct icc_path *of_icc_get_by_index(struct device *dev, int idx)
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{
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return NULL;
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}
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static inline void icc_put(struct icc_path *path)
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{
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}
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static inline int icc_enable(struct icc_path *path)
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{
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return 0;
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}
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static inline int icc_disable(struct icc_path *path)
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{
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return 0;
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}
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static inline int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw)
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{
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return 0;
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}
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static inline void icc_set_tag(struct icc_path *path, u32 tag)
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{
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}
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static inline const char *icc_get_name(struct icc_path *path)
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{
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return NULL;
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}
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#endif /* CONFIG_INTERCONNECT */
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#endif /* __LINUX_INTERCONNECT_H */
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