^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * lm75.c - Part of lm_sensors, Linux kernel modules for hardware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * monitoring
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/jiffies.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/hwmon.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/hwmon-sysfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/of_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/util_macros.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/regulator/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "lm75.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * This driver handles the LM75 and compatible digital temperature sensors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) enum lm75_type { /* keep sorted in alphabetical order */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) adt75,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) ds1775,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) ds75,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) ds7505,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) g751,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) lm75,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) lm75a,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) lm75b,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) max6625,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) max6626,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) max31725,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) mcp980x,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) pct2075,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) stds75,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) stlm75,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) tcn75,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) tmp100,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) tmp101,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) tmp105,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) tmp112,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) tmp175,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) tmp275,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) tmp75,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) tmp75b,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) tmp75c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * struct lm75_params - lm75 configuration parameters.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * @set_mask: Bits to set in configuration register when configuring
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * the chip.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * @clr_mask: Bits to clear in configuration register when configuring
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * the chip.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * @default_resolution: Default number of bits to represent the temperature
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) * value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * @resolution_limits: Limit register resolution. Optional. Should be set if
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * the resolution of limit registers does not match the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) * resolution of the temperature register.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * @resolutions: List of resolutions associated with sample times.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) * Optional. Should be set if num_sample_times is larger
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * than 1, and if the resolution changes with sample times.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * If set, number of entries must match num_sample_times.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) * @default_sample_time:Sample time to be set by default.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) * @num_sample_times: Number of possible sample times to be set. Optional.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) * Should be set if the number of sample times is larger
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) * than one.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) * @sample_times: All the possible sample times to be set. Mandatory if
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) * num_sample_times is larger than 1. If set, number of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) * entries must match num_sample_times.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct lm75_params {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) u8 set_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) u8 clr_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) u8 default_resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) u8 resolution_limits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) const u8 *resolutions;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) unsigned int default_sample_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) u8 num_sample_times;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) const unsigned int *sample_times;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) /* Addresses scanned */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) 0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) /* The LM75 registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) #define LM75_REG_TEMP 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) #define LM75_REG_CONF 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) #define LM75_REG_HYST 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) #define LM75_REG_MAX 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) #define PCT2075_REG_IDLE 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) /* Each client has this additional data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) struct lm75_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct i2c_client *client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) struct regmap *regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) struct regulator *vs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) u8 orig_conf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) u8 current_conf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) u8 resolution; /* In bits, 9 to 16 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) unsigned int sample_time; /* In ms */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) enum lm75_type kind;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) const struct lm75_params *params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) /*-----------------------------------------------------------------------*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static const u8 lm75_sample_set_masks[] = { 0 << 5, 1 << 5, 2 << 5, 3 << 5 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) #define LM75_SAMPLE_CLEAR_MASK (3 << 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) /* The structure below stores the configuration values of the supported devices.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) * In case of being supported multiple configurations, the default one must
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * always be the first element of the array
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) static const struct lm75_params device_params[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) [adt75] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) .clr_mask = 1 << 5, /* not one-shot mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) .default_resolution = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) .default_sample_time = MSEC_PER_SEC / 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) [ds1775] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) .clr_mask = 3 << 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) .set_mask = 2 << 5, /* 11-bit mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) .default_resolution = 11,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) .default_sample_time = 500,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) .num_sample_times = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) .sample_times = (unsigned int []){ 125, 250, 500, 1000 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) .resolutions = (u8 []) {9, 10, 11, 12 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) [ds75] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) .clr_mask = 3 << 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) .set_mask = 2 << 5, /* 11-bit mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) .default_resolution = 11,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) .default_sample_time = 600,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) .num_sample_times = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) .sample_times = (unsigned int []){ 150, 300, 600, 1200 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) .resolutions = (u8 []) {9, 10, 11, 12 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) [stds75] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) .clr_mask = 3 << 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) .set_mask = 2 << 5, /* 11-bit mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) .default_resolution = 11,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) .default_sample_time = 600,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) .num_sample_times = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) .sample_times = (unsigned int []){ 150, 300, 600, 1200 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) .resolutions = (u8 []) {9, 10, 11, 12 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) [stlm75] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) .default_resolution = 9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) .default_sample_time = MSEC_PER_SEC / 6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) [ds7505] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) .set_mask = 3 << 5, /* 12-bit mode*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) .default_resolution = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) .default_sample_time = 200,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) .num_sample_times = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) .sample_times = (unsigned int []){ 25, 50, 100, 200 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) .resolutions = (u8 []) {9, 10, 11, 12 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) [g751] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) .default_resolution = 9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) .default_sample_time = MSEC_PER_SEC / 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) [lm75] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) .default_resolution = 9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) .default_sample_time = MSEC_PER_SEC / 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) [lm75a] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) .default_resolution = 9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) .default_sample_time = MSEC_PER_SEC / 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) [lm75b] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) .default_resolution = 11,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) .default_sample_time = MSEC_PER_SEC / 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) [max6625] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) .default_resolution = 9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) .default_sample_time = MSEC_PER_SEC / 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) [max6626] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) .default_resolution = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) .default_sample_time = MSEC_PER_SEC / 7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) .resolution_limits = 9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) [max31725] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) .default_resolution = 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) .default_sample_time = MSEC_PER_SEC / 20,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) [tcn75] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) .default_resolution = 9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) .default_sample_time = MSEC_PER_SEC / 18,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) [pct2075] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) .default_resolution = 11,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) .default_sample_time = MSEC_PER_SEC / 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) .num_sample_times = 31,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) .sample_times = (unsigned int []){ 100, 200, 300, 400, 500, 600,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 1800, 1900, 2000, 2100, 2200, 2300, 2400, 2500, 2600, 2700,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 2800, 2900, 3000, 3100 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) [mcp980x] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) .set_mask = 3 << 5, /* 12-bit mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) .clr_mask = 1 << 7, /* not one-shot mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) .default_resolution = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) .resolution_limits = 9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) .default_sample_time = 240,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) .num_sample_times = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) .sample_times = (unsigned int []){ 30, 60, 120, 240 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) .resolutions = (u8 []) {9, 10, 11, 12 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) [tmp100] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) .set_mask = 3 << 5, /* 12-bit mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) .clr_mask = 1 << 7, /* not one-shot mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) .default_resolution = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) .default_sample_time = 320,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) .num_sample_times = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) .sample_times = (unsigned int []){ 40, 80, 160, 320 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) .resolutions = (u8 []) {9, 10, 11, 12 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) [tmp101] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) .set_mask = 3 << 5, /* 12-bit mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) .clr_mask = 1 << 7, /* not one-shot mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) .default_resolution = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) .default_sample_time = 320,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) .num_sample_times = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) .sample_times = (unsigned int []){ 40, 80, 160, 320 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) .resolutions = (u8 []) {9, 10, 11, 12 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) [tmp105] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) .set_mask = 3 << 5, /* 12-bit mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) .clr_mask = 1 << 7, /* not one-shot mode*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) .default_resolution = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) .default_sample_time = 220,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) .num_sample_times = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) .sample_times = (unsigned int []){ 28, 55, 110, 220 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) .resolutions = (u8 []) {9, 10, 11, 12 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) [tmp112] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) .set_mask = 3 << 5, /* 8 samples / second */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) .clr_mask = 1 << 7, /* no one-shot mode*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) .default_resolution = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) .default_sample_time = 125,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) .num_sample_times = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) .sample_times = (unsigned int []){ 125, 250, 1000, 4000 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) [tmp175] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) .set_mask = 3 << 5, /* 12-bit mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) .clr_mask = 1 << 7, /* not one-shot mode*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) .default_resolution = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) .default_sample_time = 220,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) .num_sample_times = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) .sample_times = (unsigned int []){ 28, 55, 110, 220 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) .resolutions = (u8 []) {9, 10, 11, 12 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) [tmp275] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) .set_mask = 3 << 5, /* 12-bit mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) .clr_mask = 1 << 7, /* not one-shot mode*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) .default_resolution = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) .default_sample_time = 220,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) .num_sample_times = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) .sample_times = (unsigned int []){ 28, 55, 110, 220 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) .resolutions = (u8 []) {9, 10, 11, 12 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) [tmp75] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) .set_mask = 3 << 5, /* 12-bit mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) .clr_mask = 1 << 7, /* not one-shot mode*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) .default_resolution = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) .default_sample_time = 220,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) .num_sample_times = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) .sample_times = (unsigned int []){ 28, 55, 110, 220 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) .resolutions = (u8 []) {9, 10, 11, 12 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) [tmp75b] = { /* not one-shot mode, Conversion rate 37Hz */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) .clr_mask = 1 << 7 | 3 << 5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) .default_resolution = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) .default_sample_time = MSEC_PER_SEC / 37,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) .sample_times = (unsigned int []){ MSEC_PER_SEC / 37,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) MSEC_PER_SEC / 18,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) MSEC_PER_SEC / 9, MSEC_PER_SEC / 4 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) .num_sample_times = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) [tmp75c] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) .clr_mask = 1 << 5, /*not one-shot mode*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) .default_resolution = 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) .default_sample_time = MSEC_PER_SEC / 12,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) static inline long lm75_reg_to_mc(s16 temp, u8 resolution)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) return ((temp >> (16 - resolution)) * 1000) >> (resolution - 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) static int lm75_write_config(struct lm75_data *data, u8 set_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) u8 clr_mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) u8 value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) clr_mask |= LM75_SHUTDOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) value = data->current_conf & ~clr_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) value |= set_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) if (data->current_conf != value) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) s32 err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) err = i2c_smbus_write_byte_data(data->client, LM75_REG_CONF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) data->current_conf = value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) static int lm75_read(struct device *dev, enum hwmon_sensor_types type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) u32 attr, int channel, long *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) struct lm75_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) unsigned int regval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) int err, reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) switch (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) case hwmon_chip:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) switch (attr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) case hwmon_chip_update_interval:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) *val = data->sample_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) case hwmon_temp:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) switch (attr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) case hwmon_temp_input:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) reg = LM75_REG_TEMP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) case hwmon_temp_max:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) reg = LM75_REG_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) case hwmon_temp_max_hyst:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) reg = LM75_REG_HYST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) err = regmap_read(data->regmap, reg, ®val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) *val = lm75_reg_to_mc(regval, data->resolution);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) static int lm75_write_temp(struct device *dev, u32 attr, long temp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) struct lm75_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) u8 resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) int reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) switch (attr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) case hwmon_temp_max:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) reg = LM75_REG_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) case hwmon_temp_max_hyst:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) reg = LM75_REG_HYST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) * Resolution of limit registers is assumed to be the same as the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) * temperature input register resolution unless given explicitly.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) if (data->params->resolution_limits)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) resolution = data->params->resolution_limits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) resolution = data->resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) temp = clamp_val(temp, LM75_TEMP_MIN, LM75_TEMP_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) temp = DIV_ROUND_CLOSEST(temp << (resolution - 8),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 1000) << (16 - resolution);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) return regmap_write(data->regmap, reg, (u16)temp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) static int lm75_update_interval(struct device *dev, long val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) struct lm75_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) unsigned int reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) u8 index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) s32 err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) index = find_closest(val, data->params->sample_times,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) (int)data->params->num_sample_times);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) switch (data->kind) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) err = lm75_write_config(data, lm75_sample_set_masks[index],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) LM75_SAMPLE_CLEAR_MASK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) data->sample_time = data->params->sample_times[index];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) if (data->params->resolutions)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) data->resolution = data->params->resolutions[index];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) case tmp112:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) err = regmap_read(data->regmap, LM75_REG_CONF, ®);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) reg &= ~0x00c0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) reg |= (3 - index) << 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) err = regmap_write(data->regmap, LM75_REG_CONF, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) data->sample_time = data->params->sample_times[index];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) case pct2075:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) err = i2c_smbus_write_byte_data(data->client, PCT2075_REG_IDLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) index + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) data->sample_time = data->params->sample_times[index];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) static int lm75_write_chip(struct device *dev, u32 attr, long val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) switch (attr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) case hwmon_chip_update_interval:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) return lm75_update_interval(dev, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) static int lm75_write(struct device *dev, enum hwmon_sensor_types type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) u32 attr, int channel, long val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) switch (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) case hwmon_chip:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) return lm75_write_chip(dev, attr, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) case hwmon_temp:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) return lm75_write_temp(dev, attr, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) static umode_t lm75_is_visible(const void *data, enum hwmon_sensor_types type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) u32 attr, int channel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) const struct lm75_data *config_data = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) switch (type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) case hwmon_chip:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) switch (attr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) case hwmon_chip_update_interval:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) if (config_data->params->num_sample_times > 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) return 0644;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) return 0444;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) case hwmon_temp:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) switch (attr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) case hwmon_temp_input:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) return 0444;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) case hwmon_temp_max:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) case hwmon_temp_max_hyst:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) return 0644;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) static const struct hwmon_channel_info *lm75_info[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) HWMON_CHANNEL_INFO(chip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) HWMON_C_REGISTER_TZ | HWMON_C_UPDATE_INTERVAL),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) HWMON_CHANNEL_INFO(temp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) static const struct hwmon_ops lm75_hwmon_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) .is_visible = lm75_is_visible,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) .read = lm75_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) .write = lm75_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) static const struct hwmon_chip_info lm75_chip_info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) .ops = &lm75_hwmon_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) .info = lm75_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) static bool lm75_is_writeable_reg(struct device *dev, unsigned int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) return reg != LM75_REG_TEMP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) static bool lm75_is_volatile_reg(struct device *dev, unsigned int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) return reg == LM75_REG_TEMP || reg == LM75_REG_CONF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) static const struct regmap_config lm75_regmap_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) .reg_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) .val_bits = 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) .max_register = PCT2075_REG_IDLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) .writeable_reg = lm75_is_writeable_reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) .volatile_reg = lm75_is_volatile_reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) .val_format_endian = REGMAP_ENDIAN_BIG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) .cache_type = REGCACHE_RBTREE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) .use_single_read = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) .use_single_write = true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) static void lm75_disable_regulator(void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) struct lm75_data *lm75 = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) regulator_disable(lm75->vs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) static void lm75_remove(void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) struct lm75_data *lm75 = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) struct i2c_client *client = lm75->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) i2c_smbus_write_byte_data(client, LM75_REG_CONF, lm75->orig_conf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) static const struct i2c_device_id lm75_ids[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) static int lm75_probe(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) struct device *dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) struct device *hwmon_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) struct lm75_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) int status, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) enum lm75_type kind;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) if (client->dev.of_node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) kind = (enum lm75_type)of_device_get_match_data(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) kind = i2c_match_id(lm75_ids, client)->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) if (!i2c_check_functionality(client->adapter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) data = devm_kzalloc(dev, sizeof(struct lm75_data), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) if (!data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) data->client = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) data->kind = kind;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) data->vs = devm_regulator_get(dev, "vs");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) if (IS_ERR(data->vs))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) return PTR_ERR(data->vs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) data->regmap = devm_regmap_init_i2c(client, &lm75_regmap_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) if (IS_ERR(data->regmap))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) return PTR_ERR(data->regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) /* Set to LM75 resolution (9 bits, 1/2 degree C) and range.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) * Then tweak to be more precise when appropriate.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) data->params = &device_params[data->kind];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) /* Save default sample time and resolution*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) data->sample_time = data->params->default_sample_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) data->resolution = data->params->default_resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) /* Enable the power */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) err = regulator_enable(data->vs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) dev_err(dev, "failed to enable regulator: %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) err = devm_add_action_or_reset(dev, lm75_disable_regulator, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) /* Cache original configuration */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) status = i2c_smbus_read_byte_data(client, LM75_REG_CONF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) if (status < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) dev_dbg(dev, "Can't read config? %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) data->orig_conf = status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) data->current_conf = status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) err = lm75_write_config(data, data->params->set_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) data->params->clr_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) err = devm_add_action_or_reset(dev, lm75_remove, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) data, &lm75_chip_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) if (IS_ERR(hwmon_dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) return PTR_ERR(hwmon_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) dev_info(dev, "%s: sensor '%s'\n", dev_name(hwmon_dev), client->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) static const struct i2c_device_id lm75_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) { "adt75", adt75, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) { "ds1775", ds1775, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) { "ds75", ds75, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) { "ds7505", ds7505, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) { "g751", g751, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) { "lm75", lm75, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) { "lm75a", lm75a, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) { "lm75b", lm75b, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) { "max6625", max6625, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) { "max6626", max6626, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) { "max31725", max31725, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) { "max31726", max31725, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) { "mcp980x", mcp980x, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) { "pct2075", pct2075, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) { "stds75", stds75, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) { "stlm75", stlm75, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) { "tcn75", tcn75, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) { "tmp100", tmp100, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) { "tmp101", tmp101, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) { "tmp105", tmp105, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) { "tmp112", tmp112, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) { "tmp175", tmp175, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) { "tmp275", tmp275, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) { "tmp75", tmp75, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) { "tmp75b", tmp75b, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) { "tmp75c", tmp75c, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) { /* LIST END */ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) MODULE_DEVICE_TABLE(i2c, lm75_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) static const struct of_device_id __maybe_unused lm75_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) .compatible = "adi,adt75",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) .data = (void *)adt75
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) .compatible = "dallas,ds1775",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) .data = (void *)ds1775
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) .compatible = "dallas,ds75",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) .data = (void *)ds75
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) .compatible = "dallas,ds7505",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) .data = (void *)ds7505
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) .compatible = "gmt,g751",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) .data = (void *)g751
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) .compatible = "national,lm75",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) .data = (void *)lm75
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) .compatible = "national,lm75a",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) .data = (void *)lm75a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) .compatible = "national,lm75b",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) .data = (void *)lm75b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) .compatible = "maxim,max6625",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) .data = (void *)max6625
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) .compatible = "maxim,max6626",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) .data = (void *)max6626
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) .compatible = "maxim,max31725",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) .data = (void *)max31725
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) .compatible = "maxim,max31726",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) .data = (void *)max31725
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) .compatible = "maxim,mcp980x",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) .data = (void *)mcp980x
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) .compatible = "nxp,pct2075",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) .data = (void *)pct2075
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) .compatible = "st,stds75",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) .data = (void *)stds75
^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) .compatible = "st,stlm75",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) .data = (void *)stlm75
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) .compatible = "microchip,tcn75",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) .data = (void *)tcn75
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) .compatible = "ti,tmp100",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) .data = (void *)tmp100
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) .compatible = "ti,tmp101",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) .data = (void *)tmp101
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) .compatible = "ti,tmp105",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) .data = (void *)tmp105
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) .compatible = "ti,tmp112",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) .data = (void *)tmp112
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) .compatible = "ti,tmp175",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) .data = (void *)tmp175
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) .compatible = "ti,tmp275",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) .data = (void *)tmp275
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) .compatible = "ti,tmp75",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) .data = (void *)tmp75
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) .compatible = "ti,tmp75b",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) .data = (void *)tmp75b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) .compatible = "ti,tmp75c",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) .data = (void *)tmp75c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) MODULE_DEVICE_TABLE(of, lm75_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) #define LM75A_ID 0xA1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) /* Return 0 if detection is successful, -ENODEV otherwise */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) static int lm75_detect(struct i2c_client *new_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) struct i2c_board_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) struct i2c_adapter *adapter = new_client->adapter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) int conf, hyst, os;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) bool is_lm75a = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) I2C_FUNC_SMBUS_WORD_DATA))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) * Now, we do the remaining detection. There is no identification-
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) * dedicated register so we have to rely on several tricks:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) * unused bits, registers cycling over 8-address boundaries,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) * addresses 0x04-0x07 returning the last read value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) * The cycling+unused addresses combination is not tested,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) * since it would significantly slow the detection down and would
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) * hardly add any value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) * The National Semiconductor LM75A is different than earlier
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) * LM75s. It has an ID byte of 0xaX (where X is the chip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) * revision, with 1 being the only revision in existence) in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) * register 7, and unused registers return 0xff rather than the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) * last read value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) * Note that this function only detects the original National
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) * Semiconductor LM75 and the LM75A. Clones from other vendors
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) * aren't detected, on purpose, because they are typically never
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) * found on PC hardware. They are found on embedded designs where
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) * they can be instantiated explicitly so detection is not needed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) * The absence of identification registers on all these clones
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) * would make their exhaustive detection very difficult and weak,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) * and odds are that the driver would bind to unsupported devices.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) /* Unused bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) conf = i2c_smbus_read_byte_data(new_client, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) if (conf & 0xe0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) /* First check for LM75A */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) if (i2c_smbus_read_byte_data(new_client, 7) == LM75A_ID) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) * LM75A returns 0xff on unused registers so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) * just to be sure we check for that too.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) if (i2c_smbus_read_byte_data(new_client, 4) != 0xff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) || i2c_smbus_read_byte_data(new_client, 5) != 0xff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) || i2c_smbus_read_byte_data(new_client, 6) != 0xff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) is_lm75a = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) hyst = i2c_smbus_read_byte_data(new_client, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) os = i2c_smbus_read_byte_data(new_client, 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) } else { /* Traditional style LM75 detection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) /* Unused addresses */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) hyst = i2c_smbus_read_byte_data(new_client, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) if (i2c_smbus_read_byte_data(new_client, 4) != hyst
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) || i2c_smbus_read_byte_data(new_client, 5) != hyst
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) || i2c_smbus_read_byte_data(new_client, 6) != hyst
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) || i2c_smbus_read_byte_data(new_client, 7) != hyst)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) os = i2c_smbus_read_byte_data(new_client, 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) if (i2c_smbus_read_byte_data(new_client, 4) != os
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) || i2c_smbus_read_byte_data(new_client, 5) != os
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) || i2c_smbus_read_byte_data(new_client, 6) != os
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) || i2c_smbus_read_byte_data(new_client, 7) != os)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) * It is very unlikely that this is a LM75 if both
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) * hysteresis and temperature limit registers are 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) if (hyst == 0 && os == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) /* Addresses cycling */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) for (i = 8; i <= 248; i += 40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) if (i2c_smbus_read_byte_data(new_client, i + 1) != conf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) || i2c_smbus_read_byte_data(new_client, i + 2) != hyst
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) || i2c_smbus_read_byte_data(new_client, i + 3) != os)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) if (is_lm75a && i2c_smbus_read_byte_data(new_client, i + 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) != LM75A_ID)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) return -ENODEV;
^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) strlcpy(info->type, is_lm75a ? "lm75a" : "lm75", I2C_NAME_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) static int lm75_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) status = i2c_smbus_read_byte_data(client, LM75_REG_CONF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) if (status < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) dev_dbg(&client->dev, "Can't read config? %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) status = status | LM75_SHUTDOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) i2c_smbus_write_byte_data(client, LM75_REG_CONF, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) static int lm75_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) status = i2c_smbus_read_byte_data(client, LM75_REG_CONF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) if (status < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) dev_dbg(&client->dev, "Can't read config? %d\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) status = status & ~LM75_SHUTDOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) i2c_smbus_write_byte_data(client, LM75_REG_CONF, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) static const struct dev_pm_ops lm75_dev_pm_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) .suspend = lm75_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) .resume = lm75_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) #define LM75_DEV_PM_OPS (&lm75_dev_pm_ops)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) #define LM75_DEV_PM_OPS NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) #endif /* CONFIG_PM */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) static struct i2c_driver lm75_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) .class = I2C_CLASS_HWMON,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) .name = "lm75",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) .of_match_table = of_match_ptr(lm75_of_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) .pm = LM75_DEV_PM_OPS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) .probe_new = lm75_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) .id_table = lm75_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) .detect = lm75_detect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) .address_list = normal_i2c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) module_i2c_driver(lm75_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) MODULE_DESCRIPTION("LM75 driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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