threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
88 lines
2.0 KiB
C
88 lines
2.0 KiB
C
/*
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* Copyright (C) 2018 MediaTek Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See http://www.gnu.org/licenses/gpl-2.0.html for more details.
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*/
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#include <linux/mutex.h>
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#include <mt-plat/mtk_perfobserver.h>
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#include "rs_state.h"
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#include "rs_base.h"
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static DEFINE_MUTEX(rsu_state_ntf_mutex);
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static int is_throttled;
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static struct kobject *rss_kobj;
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void rsu_get_state(int *throttled)
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{
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mutex_lock(&rsu_state_ntf_mutex);
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*throttled = is_throttled;
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mutex_unlock(&rsu_state_ntf_mutex);
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}
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static int rsu_pob_eara_thrm_cb(struct notifier_block *nb,
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unsigned long val, void *data)
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{
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switch (val) {
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case POB_EARA_THRM_THROTTLED:
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mutex_lock(&rsu_state_ntf_mutex);
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is_throttled = 1;
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mutex_unlock(&rsu_state_ntf_mutex);
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break;
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case POB_EARA_THRM_UNTHROTTLED:
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mutex_lock(&rsu_state_ntf_mutex);
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is_throttled = 0;
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mutex_unlock(&rsu_state_ntf_mutex);
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break;
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default:
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break;
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}
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return NOTIFY_OK;
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}
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static struct notifier_block rsu_pob_eara_thrm_notifier = {
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.notifier_call = rsu_pob_eara_thrm_cb,
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};
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static ssize_t rs_state_show(struct kobject *kobj,
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struct kobj_attribute *attr,
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char *buf)
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{
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int thrm_state = -1;
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rsu_get_state(&thrm_state);
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return scnprintf(buf, PAGE_SIZE, "%d\n", thrm_state);
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}
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KOBJ_ATTR_RO(rs_state);
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int __init rs_state_init(void)
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{
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rsu_getstate_fp = rsu_get_state;
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pob_eara_thrm_register_client(&rsu_pob_eara_thrm_notifier);
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if (rs_sysfs_create_dir(NULL, "state", &rss_kobj))
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return -ENODEV;
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rs_sysfs_create_file(rss_kobj, &kobj_attr_rs_state);
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return 0;
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}
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void __exit rs_state_exit(void)
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{
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rs_sysfs_remove_file(rss_kobj, &kobj_attr_rs_state);
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rs_sysfs_remove_dir(&rss_kobj);
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}
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