f1c61de853
Modify the qcom_dcvs_update_votes() API to take in a mask of votes instead of a number. This allows clients to maintain a fixed sized array of votes and only configure the ones they need to vote for. This simplifies the fast path voting interface where the indexing of votes must match the dcvs_hw_type enum ordering. Change-Id: Ief2357b236de8587a29826119ab82675e3424993 Signed-off-by: Amir Vajid <avajid@codeaurora.org>
74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2020, The Linux Foundation. All rights reserved.
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*/
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#ifndef _QCOM_DCVS_H
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#define _QCOM_DCVS_H
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#include <linux/kernel.h>
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#define QCOM_DCVS_WIDTH_PROP "qcom,bus-width"
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#define QCOM_DCVS_HW_PROP "qcom,dcvs-hw-type"
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#define QCOM_DCVS_PATH_PROP "qcom,dcvs-path-type"
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enum dcvs_hw_type {
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DCVS_DDR,
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DCVS_LLCC,
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DCVS_L3,
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DCVS_DDRQOS,
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NUM_DCVS_HW_TYPES
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};
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enum dcvs_path_type {
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DCVS_SLOW_PATH,
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DCVS_FAST_PATH,
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DCVS_PERCPU_PATH,
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NUM_DCVS_PATHS
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};
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struct dcvs_freq {
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u32 ib;
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u32 ab;
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enum dcvs_hw_type hw_type;
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};
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#if IS_ENABLED(CONFIG_QCOM_DCVS)
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int qcom_dcvs_register_voter(const char *name, enum dcvs_hw_type hw_type,
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enum dcvs_path_type path_type);
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int qcom_dcvs_unregister_voter(const char *name, enum dcvs_hw_type hw_type,
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enum dcvs_path_type path_type);
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int qcom_dcvs_update_votes(const char *name, struct dcvs_freq *votes,
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u32 update_mask, enum dcvs_path_type path);
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struct kobject *qcom_dcvs_kobject_get(enum dcvs_hw_type type);
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int qcom_dcvs_hw_minmax_get(enum dcvs_hw_type hw_type, u32 *min, u32 *max);
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#else
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static inline int qcom_dcvs_register_voter(const char *name,
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enum dcvs_hw_type hw_type, enum dcvs_path_type path_type)
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{
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return -ENODEV;
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}
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static inline int qcom_dcvs_unregister_voter(const char *name,
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enum dcvs_hw_type hw_type, enum dcvs_path_type path_type)
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{
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return -ENODEV;
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}
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static inline int qcom_dcvs_update_votes(const char *name,
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struct dcvs_freq *votes, u32 update_mask,
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enum dcvs_path_type path)
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{
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return -ENODEV;
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}
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static inline struct kobject *qcom_dcvs_kobject_get(enum dcvs_hw_type type)
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{
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return NULL;
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}
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static inline int qcom_dcvs_hw_minmax_get(enum dcvs_hw_type hw_type, u32 *min,
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u32 *max)
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{
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return -ENODEV;
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}
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#endif
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#endif /* _QCOM_DCVS_H */
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