87 lines
1.8 KiB
C
87 lines
1.8 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#include <linux/device.h>
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#include <linux/kernel.h>
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#include <linux/soc/mediatek/mtk-pm-qos.h>
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#include <linux/sysfs.h>
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#include <apu_dvfs.h>
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static struct mtk_pm_qos_request dvfs_vvpu_opp_req;
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static struct mtk_pm_qos_request dvfs_vvpu2_opp_req;
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static ssize_t dvfs_req_vvpu_opp_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t count)
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{
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int val = 0;
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if (kstrtoint(buf, 10, &val))
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return -EINVAL;
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mtk_pm_qos_update_request(&dvfs_vvpu_opp_req, val);
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return count;
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}
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static DEVICE_ATTR_WO(dvfs_req_vvpu_opp);
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static ssize_t dvfs_req_vvpu2_opp_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t count)
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{
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int val = 0;
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if (kstrtoint(buf, 10, &val))
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return -EINVAL;
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mtk_pm_qos_update_request(&dvfs_vvpu2_opp_req, val);
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return count;
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}
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static DEVICE_ATTR_WO(dvfs_req_vvpu2_opp);
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static ssize_t dvfs_dump_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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char *p = buf;
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p = apu_dvfs_dump_reg(p);
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return p - buf;
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}
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static DEVICE_ATTR_RO(dvfs_dump);
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static struct attribute *apu_dvfs_attrs[] = {
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&dev_attr_dvfs_req_vvpu_opp.attr,
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&dev_attr_dvfs_req_vvpu2_opp.attr,
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&dev_attr_dvfs_dump.attr,
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NULL,
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};
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static struct attribute_group apu_dvfs_attr_group = {
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.name = "apu_dvfs",
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.attrs = apu_dvfs_attrs,
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};
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int apu_dvfs_add_interface(struct device *dev)
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{
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mtk_pm_qos_add_request(&dvfs_vvpu_opp_req, MTK_PM_QOS_VVPU_OPP,
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MTK_PM_QOS_VVPU_OPP_DEFAULT_VALUE);
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mtk_pm_qos_add_request(&dvfs_vvpu2_opp_req, MTK_PM_QOS_VVPU_OPP,
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MTK_PM_QOS_VVPU_OPP_DEFAULT_VALUE);
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return sysfs_create_group(&dev->kobj, &apu_dvfs_attr_group);
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}
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void apu_dvfs_remove_interface(struct device *dev)
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{
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sysfs_remove_group(&dev->kobj, &apu_dvfs_attr_group);
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}
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