^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * thermal.c - sysfs interface of thermal devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2016 Eduardo Valentin <edubezval@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Highly based on original thermal_core.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Copyright (C) 2008 Intel Corp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Copyright (C) 2008 Zhang Rui <rui.zhang@intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Copyright (C) 2008 Sujith Thomas <sujith.thomas@intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/sysfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/jiffies.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include "thermal_core.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) /* sys I/F for thermal zone */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) type_show(struct device *dev, struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) return sprintf(buf, "%s\n", tz->type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) temp_show(struct device *dev, struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) int temperature, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) ret = thermal_zone_get_temp(tz, &temperature);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) return sprintf(buf, "%d\n", temperature);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) mode_show(struct device *dev, struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) int enabled = thermal_zone_device_is_enabled(tz);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) return sprintf(buf, "%s\n", enabled ? "enabled" : "disabled");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) mode_store(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) int result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) if (!strncmp(buf, "enabled", sizeof("enabled") - 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) result = thermal_zone_device_enable(tz);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) else if (!strncmp(buf, "disabled", sizeof("disabled") - 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) result = thermal_zone_device_disable(tz);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) result = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) if (result)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) return result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) trip_point_type_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) enum thermal_trip_type type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) int trip, result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) if (!tz->ops->get_trip_type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) if (sscanf(attr->attr.name, "trip_point_%d_type", &trip) != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) result = tz->ops->get_trip_type(tz, trip, &type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) if (result)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) return result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) switch (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) case THERMAL_TRIP_CRITICAL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) return sprintf(buf, "critical\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) case THERMAL_TRIP_HOT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) return sprintf(buf, "hot\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) case THERMAL_TRIP_PASSIVE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) return sprintf(buf, "passive\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) case THERMAL_TRIP_ACTIVE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) return sprintf(buf, "active\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) return sprintf(buf, "unknown\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) trip_point_temp_store(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) int trip, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) int temperature, hyst = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) enum thermal_trip_type type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) if (!tz->ops->set_trip_temp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) if (sscanf(attr->attr.name, "trip_point_%d_temp", &trip) != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) if (kstrtoint(buf, 10, &temperature))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) ret = tz->ops->set_trip_temp(tz, trip, temperature);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) if (tz->ops->get_trip_hyst) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) ret = tz->ops->get_trip_hyst(tz, trip, &hyst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) ret = tz->ops->get_trip_type(tz, trip, &type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) thermal_notify_tz_trip_change(tz->id, trip, type, temperature, hyst);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) trip_point_temp_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) int trip, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) int temperature;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) if (!tz->ops->get_trip_temp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) if (sscanf(attr->attr.name, "trip_point_%d_temp", &trip) != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) ret = tz->ops->get_trip_temp(tz, trip, &temperature);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) return sprintf(buf, "%d\n", temperature);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) trip_point_hyst_store(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) int trip, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) int temperature;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) if (!tz->ops->set_trip_hyst)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) if (sscanf(attr->attr.name, "trip_point_%d_hyst", &trip) != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) if (kstrtoint(buf, 10, &temperature))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) * We are not doing any check on the 'temperature' value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) * here. The driver implementing 'set_trip_hyst' has to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) * take care of this.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) ret = tz->ops->set_trip_hyst(tz, trip, temperature);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) thermal_zone_set_trips(tz);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) return ret ? ret : count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) trip_point_hyst_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) int trip, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) int temperature;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) if (!tz->ops->get_trip_hyst)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) if (sscanf(attr->attr.name, "trip_point_%d_hyst", &trip) != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) ret = tz->ops->get_trip_hyst(tz, trip, &temperature);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) return ret ? ret : sprintf(buf, "%d\n", temperature);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) passive_store(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) int state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) if (sscanf(buf, "%d\n", &state) != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) /* sanity check: values below 1000 millicelcius don't make sense
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) * and can cause the system to go into a thermal heart attack
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) if (state && state < 1000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) if (state && !tz->forced_passive) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) if (!tz->passive_delay)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) tz->passive_delay = 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) thermal_zone_device_rebind_exception(tz, "Processor",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) sizeof("Processor"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) } else if (!state && tz->forced_passive) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) tz->passive_delay = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) thermal_zone_device_unbind_exception(tz, "Processor",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) sizeof("Processor"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) tz->forced_passive = state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) passive_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) return sprintf(buf, "%d\n", tz->forced_passive);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) policy_store(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) char name[THERMAL_NAME_LENGTH];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) snprintf(name, sizeof(name), "%s", buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) ret = thermal_zone_device_set_policy(tz, name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) ret = count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) policy_show(struct device *dev, struct device_attribute *devattr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) return sprintf(buf, "%s\n", tz->governor->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) available_policies_show(struct device *dev, struct device_attribute *devattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) return thermal_build_list_of_policies(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) #if (IS_ENABLED(CONFIG_THERMAL_EMULATION))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) emul_temp_store(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) int temperature;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) if (kstrtoint(buf, 10, &temperature))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) if (!tz->ops->set_emul_temp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) mutex_lock(&tz->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) tz->emul_temperature = temperature;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) mutex_unlock(&tz->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) ret = tz->ops->set_emul_temp(tz, temperature);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) return ret ? ret : count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) static DEVICE_ATTR_WO(emul_temp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) sustainable_power_show(struct device *dev, struct device_attribute *devattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) if (tz->tzp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) return sprintf(buf, "%u\n", tz->tzp->sustainable_power);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) sustainable_power_store(struct device *dev, struct device_attribute *devattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) struct thermal_zone_device *tz = to_thermal_zone(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) u32 sustainable_power;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) if (!tz->tzp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) if (kstrtou32(buf, 10, &sustainable_power))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) tz->tzp->sustainable_power = sustainable_power;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) #define create_s32_tzp_attr(name) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) static ssize_t \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) name##_show(struct device *dev, struct device_attribute *devattr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) char *buf) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) struct thermal_zone_device *tz = to_thermal_zone(dev); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) if (tz->tzp) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) return sprintf(buf, "%d\n", tz->tzp->name); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) else \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) return -EIO; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) static ssize_t \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) name##_store(struct device *dev, struct device_attribute *devattr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) const char *buf, size_t count) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) struct thermal_zone_device *tz = to_thermal_zone(dev); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) s32 value; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) if (!tz->tzp) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) return -EIO; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) if (kstrtos32(buf, 10, &value)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) return -EINVAL; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) tz->tzp->name = value; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) return count; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) static DEVICE_ATTR_RW(name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) create_s32_tzp_attr(k_po);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) create_s32_tzp_attr(k_pu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) create_s32_tzp_attr(k_i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) create_s32_tzp_attr(k_d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) create_s32_tzp_attr(integral_cutoff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) create_s32_tzp_attr(slope);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) create_s32_tzp_attr(offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) #undef create_s32_tzp_attr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) * These are thermal zone device attributes that will always be present.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) * All the attributes created for tzp (create_s32_tzp_attr) also are always
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) * present on the sysfs interface.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) static DEVICE_ATTR_RO(type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) static DEVICE_ATTR_RO(temp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) static DEVICE_ATTR_RW(policy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) static DEVICE_ATTR_RO(available_policies);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) static DEVICE_ATTR_RW(sustainable_power);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) /* These thermal zone device attributes are created based on conditions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) static DEVICE_ATTR_RW(mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) static DEVICE_ATTR_RW(passive);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) /* These attributes are unconditionally added to a thermal zone */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) static struct attribute *thermal_zone_dev_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) &dev_attr_type.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) &dev_attr_temp.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) #if (IS_ENABLED(CONFIG_THERMAL_EMULATION))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) &dev_attr_emul_temp.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) &dev_attr_policy.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) &dev_attr_available_policies.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) &dev_attr_sustainable_power.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) &dev_attr_k_po.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) &dev_attr_k_pu.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) &dev_attr_k_i.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) &dev_attr_k_d.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) &dev_attr_integral_cutoff.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) &dev_attr_slope.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) &dev_attr_offset.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) static struct attribute_group thermal_zone_attribute_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) .attrs = thermal_zone_dev_attrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) static struct attribute *thermal_zone_mode_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) &dev_attr_mode.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) static struct attribute_group thermal_zone_mode_attribute_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) .attrs = thermal_zone_mode_attrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) /* We expose passive only if passive trips are present */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) static struct attribute *thermal_zone_passive_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) &dev_attr_passive.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) static umode_t thermal_zone_passive_is_visible(struct kobject *kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) struct attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) int attrno)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) struct device *dev = kobj_to_dev(kobj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) struct thermal_zone_device *tz;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) enum thermal_trip_type trip_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) int count, passive = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) tz = container_of(dev, struct thermal_zone_device, device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) for (count = 0; count < tz->trips && !passive; count++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) tz->ops->get_trip_type(tz, count, &trip_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) if (trip_type == THERMAL_TRIP_PASSIVE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) passive = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) if (!passive)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) return attr->mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) static struct attribute_group thermal_zone_passive_attribute_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) .attrs = thermal_zone_passive_attrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) .is_visible = thermal_zone_passive_is_visible,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) static const struct attribute_group *thermal_zone_attribute_groups[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) &thermal_zone_attribute_group,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) &thermal_zone_mode_attribute_group,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) &thermal_zone_passive_attribute_group,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) /* This is not NULL terminated as we create the group dynamically */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) * create_trip_attrs() - create attributes for trip points
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) * @tz: the thermal zone device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) * @mask: Writeable trip point bitmap.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) * helper function to instantiate sysfs entries for every trip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) * point and its properties of a struct thermal_zone_device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) * Return: 0 on success, the proper error value otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) struct attribute **attrs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) int indx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) /* This function works only for zones with at least one trip */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) if (tz->trips <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) tz->trip_type_attrs = kcalloc(tz->trips, sizeof(*tz->trip_type_attrs),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) if (!tz->trip_type_attrs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) tz->trip_temp_attrs = kcalloc(tz->trips, sizeof(*tz->trip_temp_attrs),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) if (!tz->trip_temp_attrs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) kfree(tz->trip_type_attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) if (tz->ops->get_trip_hyst) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) tz->trip_hyst_attrs = kcalloc(tz->trips,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) sizeof(*tz->trip_hyst_attrs),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) if (!tz->trip_hyst_attrs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) kfree(tz->trip_type_attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) kfree(tz->trip_temp_attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) attrs = kcalloc(tz->trips * 3 + 1, sizeof(*attrs), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) if (!attrs) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) kfree(tz->trip_type_attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) kfree(tz->trip_temp_attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) if (tz->ops->get_trip_hyst)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) kfree(tz->trip_hyst_attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) for (indx = 0; indx < tz->trips; indx++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) /* create trip type attribute */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) snprintf(tz->trip_type_attrs[indx].name, THERMAL_NAME_LENGTH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) "trip_point_%d_type", indx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) sysfs_attr_init(&tz->trip_type_attrs[indx].attr.attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) tz->trip_type_attrs[indx].attr.attr.name =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) tz->trip_type_attrs[indx].name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) tz->trip_type_attrs[indx].attr.attr.mode = S_IRUGO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) tz->trip_type_attrs[indx].attr.show = trip_point_type_show;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) attrs[indx] = &tz->trip_type_attrs[indx].attr.attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) /* create trip temp attribute */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) snprintf(tz->trip_temp_attrs[indx].name, THERMAL_NAME_LENGTH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) "trip_point_%d_temp", indx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) sysfs_attr_init(&tz->trip_temp_attrs[indx].attr.attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) tz->trip_temp_attrs[indx].attr.attr.name =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) tz->trip_temp_attrs[indx].name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) tz->trip_temp_attrs[indx].attr.attr.mode = S_IRUGO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) tz->trip_temp_attrs[indx].attr.show = trip_point_temp_show;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) if (IS_ENABLED(CONFIG_THERMAL_WRITABLE_TRIPS) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) mask & (1 << indx)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) tz->trip_temp_attrs[indx].attr.attr.mode |= S_IWUSR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) tz->trip_temp_attrs[indx].attr.store =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) trip_point_temp_store;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) attrs[indx + tz->trips] = &tz->trip_temp_attrs[indx].attr.attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) /* create Optional trip hyst attribute */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) if (!tz->ops->get_trip_hyst)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) snprintf(tz->trip_hyst_attrs[indx].name, THERMAL_NAME_LENGTH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) "trip_point_%d_hyst", indx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) sysfs_attr_init(&tz->trip_hyst_attrs[indx].attr.attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) tz->trip_hyst_attrs[indx].attr.attr.name =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) tz->trip_hyst_attrs[indx].name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) tz->trip_hyst_attrs[indx].attr.attr.mode = S_IRUGO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) tz->trip_hyst_attrs[indx].attr.show = trip_point_hyst_show;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) if (tz->ops->set_trip_hyst) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) tz->trip_hyst_attrs[indx].attr.attr.mode |= S_IWUSR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) tz->trip_hyst_attrs[indx].attr.store =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) trip_point_hyst_store;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) attrs[indx + tz->trips * 2] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) &tz->trip_hyst_attrs[indx].attr.attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) attrs[tz->trips * 3] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) tz->trips_attribute_group.attrs = attrs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) * destroy_trip_attrs() - destroy attributes for trip points
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) * @tz: the thermal zone device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) * helper function to free resources allocated by create_trip_attrs()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) static void destroy_trip_attrs(struct thermal_zone_device *tz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) if (!tz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) kfree(tz->trip_type_attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) kfree(tz->trip_temp_attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) if (tz->ops->get_trip_hyst)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) kfree(tz->trip_hyst_attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) kfree(tz->trips_attribute_group.attrs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) int thermal_zone_create_device_groups(struct thermal_zone_device *tz,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) int mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) const struct attribute_group **groups;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) int i, size, result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) /* we need one extra for trips and the NULL to terminate the array */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) size = ARRAY_SIZE(thermal_zone_attribute_groups) + 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) /* This also takes care of API requirement to be NULL terminated */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) groups = kcalloc(size, sizeof(*groups), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) if (!groups)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) for (i = 0; i < size - 2; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) groups[i] = thermal_zone_attribute_groups[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) if (tz->trips) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) result = create_trip_attrs(tz, mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) if (result) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) kfree(groups);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) return result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) groups[size - 2] = &tz->trips_attribute_group;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) tz->device.groups = groups;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) void thermal_zone_destroy_device_groups(struct thermal_zone_device *tz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) if (!tz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) if (tz->trips)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) destroy_trip_attrs(tz);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) kfree(tz->device.groups);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) /* sys I/F for cooling device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) cdev_type_show(struct device *dev, struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) struct thermal_cooling_device *cdev = to_cooling_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) return sprintf(buf, "%s\n", cdev->type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) static ssize_t max_state_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) struct thermal_cooling_device *cdev = to_cooling_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) unsigned long state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) ret = cdev->ops->get_max_state(cdev, &state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) return sprintf(buf, "%ld\n", state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) static ssize_t cur_state_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) struct thermal_cooling_device *cdev = to_cooling_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) unsigned long state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) ret = cdev->ops->get_cur_state(cdev, &state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) return sprintf(buf, "%ld\n", state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) cur_state_store(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) struct thermal_cooling_device *cdev = to_cooling_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) unsigned long state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) int result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) if (sscanf(buf, "%ld\n", &state) != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) if ((long)state < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) mutex_lock(&cdev->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) result = cdev->ops->set_cur_state(cdev, state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) if (!result)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) thermal_cooling_device_stats_update(cdev, state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) mutex_unlock(&cdev->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) return result ? result : count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) static struct device_attribute
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) dev_attr_cdev_type = __ATTR(type, 0444, cdev_type_show, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) static DEVICE_ATTR_RO(max_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) static DEVICE_ATTR_RW(cur_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) static struct attribute *cooling_device_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) &dev_attr_cdev_type.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) &dev_attr_max_state.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) &dev_attr_cur_state.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) static const struct attribute_group cooling_device_attr_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) .attrs = cooling_device_attrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) static const struct attribute_group *cooling_device_attr_groups[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) &cooling_device_attr_group,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) NULL, /* Space allocated for cooling_device_stats_attr_group */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) #ifdef CONFIG_THERMAL_STATISTICS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) struct cooling_dev_stats {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) unsigned int total_trans;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) unsigned long state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) unsigned long max_states;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) ktime_t last_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) ktime_t *time_in_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) unsigned int *trans_table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) static void update_time_in_state(struct cooling_dev_stats *stats)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) ktime_t now = ktime_get(), delta;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) delta = ktime_sub(now, stats->last_time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) stats->time_in_state[stats->state] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) ktime_add(stats->time_in_state[stats->state], delta);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) stats->last_time = now;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) void thermal_cooling_device_stats_update(struct thermal_cooling_device *cdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) unsigned long new_state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) struct cooling_dev_stats *stats = cdev->stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) if (!stats)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) spin_lock(&stats->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) if (stats->state == new_state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) goto unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) update_time_in_state(stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) stats->trans_table[stats->state * stats->max_states + new_state]++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) stats->state = new_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) stats->total_trans++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) unlock:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) spin_unlock(&stats->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) static ssize_t total_trans_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) struct thermal_cooling_device *cdev = to_cooling_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) struct cooling_dev_stats *stats = cdev->stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) spin_lock(&stats->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) ret = sprintf(buf, "%u\n", stats->total_trans);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) spin_unlock(&stats->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) time_in_state_ms_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) struct thermal_cooling_device *cdev = to_cooling_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) struct cooling_dev_stats *stats = cdev->stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) ssize_t len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) spin_lock(&stats->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) update_time_in_state(stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) for (i = 0; i < stats->max_states; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) len += sprintf(buf + len, "state%u\t%llu\n", i,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) ktime_to_ms(stats->time_in_state[i]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) spin_unlock(&stats->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) return len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) reset_store(struct device *dev, struct device_attribute *attr, const char *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) struct thermal_cooling_device *cdev = to_cooling_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) struct cooling_dev_stats *stats = cdev->stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) int i, states = stats->max_states;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) spin_lock(&stats->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) stats->total_trans = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) stats->last_time = ktime_get();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) memset(stats->trans_table, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) states * states * sizeof(*stats->trans_table));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) for (i = 0; i < stats->max_states; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) stats->time_in_state[i] = ktime_set(0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) spin_unlock(&stats->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) static ssize_t trans_table_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) struct thermal_cooling_device *cdev = to_cooling_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) struct cooling_dev_stats *stats = cdev->stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) ssize_t len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) int i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) len += snprintf(buf + len, PAGE_SIZE - len, " From : To\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) len += snprintf(buf + len, PAGE_SIZE - len, " : ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) for (i = 0; i < stats->max_states; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) if (len >= PAGE_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) len += snprintf(buf + len, PAGE_SIZE - len, "state%2u ", i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) if (len >= PAGE_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) return PAGE_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) len += snprintf(buf + len, PAGE_SIZE - len, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) for (i = 0; i < stats->max_states; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) if (len >= PAGE_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) len += snprintf(buf + len, PAGE_SIZE - len, "state%2u:", i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) for (j = 0; j < stats->max_states; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) if (len >= PAGE_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) len += snprintf(buf + len, PAGE_SIZE - len, "%8u ",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) stats->trans_table[i * stats->max_states + j]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) if (len >= PAGE_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) len += snprintf(buf + len, PAGE_SIZE - len, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) if (len >= PAGE_SIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) pr_warn_once("Thermal transition table exceeds PAGE_SIZE. Disabling\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) return -EFBIG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) return len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) static DEVICE_ATTR_RO(total_trans);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) static DEVICE_ATTR_RO(time_in_state_ms);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) static DEVICE_ATTR_WO(reset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) static DEVICE_ATTR_RO(trans_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) static struct attribute *cooling_device_stats_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) &dev_attr_total_trans.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) &dev_attr_time_in_state_ms.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) &dev_attr_reset.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) &dev_attr_trans_table.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) static const struct attribute_group cooling_device_stats_attr_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) .attrs = cooling_device_stats_attrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) .name = "stats"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) static void cooling_device_stats_setup(struct thermal_cooling_device *cdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) struct cooling_dev_stats *stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) unsigned long states;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) int var;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) if (cdev->ops->get_max_state(cdev, &states))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) states++; /* Total number of states is highest state + 1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) var = sizeof(*stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) var += sizeof(*stats->time_in_state) * states;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) var += sizeof(*stats->trans_table) * states * states;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) stats = kzalloc(var, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) if (!stats)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) stats->time_in_state = (ktime_t *)(stats + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) stats->trans_table = (unsigned int *)(stats->time_in_state + states);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) cdev->stats = stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) stats->last_time = ktime_get();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) stats->max_states = states;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) spin_lock_init(&stats->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) /* Fill the empty slot left in cooling_device_attr_groups */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) var = ARRAY_SIZE(cooling_device_attr_groups) - 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) cooling_device_attr_groups[var] = &cooling_device_stats_attr_group;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) static void cooling_device_stats_destroy(struct thermal_cooling_device *cdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) kfree(cdev->stats);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) cdev->stats = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) cooling_device_stats_setup(struct thermal_cooling_device *cdev) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) cooling_device_stats_destroy(struct thermal_cooling_device *cdev) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) #endif /* CONFIG_THERMAL_STATISTICS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) void thermal_cooling_device_setup_sysfs(struct thermal_cooling_device *cdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) cooling_device_stats_setup(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) cdev->device.groups = cooling_device_attr_groups;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) void thermal_cooling_device_destroy_sysfs(struct thermal_cooling_device *cdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) cooling_device_stats_destroy(cdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) /* these helper will be used only at the time of bindig */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) trip_point_show(struct device *dev, struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) struct thermal_instance *instance;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) instance =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) container_of(attr, struct thermal_instance, attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) if (instance->trip == THERMAL_TRIPS_NONE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) return sprintf(buf, "-1\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) return sprintf(buf, "%d\n", instance->trip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) weight_show(struct device *dev, struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) struct thermal_instance *instance;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) instance = container_of(attr, struct thermal_instance, weight_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) return sprintf(buf, "%d\n", instance->weight);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) ssize_t weight_store(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) struct thermal_instance *instance;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) int ret, weight;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) ret = kstrtoint(buf, 0, &weight);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) instance = container_of(attr, struct thermal_instance, weight_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) instance->weight = weight;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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