^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) * Hardware monitoring driver for LM25056 / LM25066 / LM5064 / LM5066
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) 2011 Ericsson AB.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (c) 2013 Guenter Roeck
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/bitops.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/log2.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "pmbus.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) enum chips { lm25056, lm25066, lm5064, lm5066, lm5066i };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define LM25066_READ_VAUX 0xd0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define LM25066_MFR_READ_IIN 0xd1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define LM25066_MFR_READ_PIN 0xd2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define LM25066_MFR_IIN_OC_WARN_LIMIT 0xd3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define LM25066_MFR_PIN_OP_WARN_LIMIT 0xd4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define LM25066_READ_PIN_PEAK 0xd5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define LM25066_CLEAR_PIN_PEAK 0xd6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define LM25066_DEVICE_SETUP 0xd9
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define LM25066_READ_AVG_VIN 0xdc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define LM25066_SAMPLES_FOR_AVG 0xdb
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define LM25066_READ_AVG_VOUT 0xdd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define LM25066_READ_AVG_IIN 0xde
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define LM25066_READ_AVG_PIN 0xdf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define LM25066_DEV_SETUP_CL BIT(4) /* Current limit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define LM25066_SAMPLES_FOR_AVG_MAX 4096
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) /* LM25056 only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define LM25056_VAUX_OV_WARN_LIMIT 0xe3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define LM25056_VAUX_UV_WARN_LIMIT 0xe4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define LM25056_MFR_STS_VAUX_OV_WARN BIT(1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define LM25056_MFR_STS_VAUX_UV_WARN BIT(0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) struct __coeff {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) short m, b, R;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define PSC_CURRENT_IN_L (PSC_NUM_CLASSES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define PSC_POWER_L (PSC_NUM_CLASSES + 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) static struct __coeff lm25066_coeff[][PSC_NUM_CLASSES + 2] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) [lm25056] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) [PSC_VOLTAGE_IN] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) .m = 16296,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) .b = 1343,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) [PSC_CURRENT_IN] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) .m = 13797,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) .b = -1833,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) [PSC_CURRENT_IN_L] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) .m = 6726,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) .b = -537,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) [PSC_POWER] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) .m = 5501,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) .b = -2908,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .R = -3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) [PSC_POWER_L] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) .m = 26882,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) .b = -5646,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .R = -4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) [PSC_TEMPERATURE] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) .m = 1580,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .b = -14500,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) [lm25066] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) [PSC_VOLTAGE_IN] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .m = 22070,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) .b = -1800,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) [PSC_VOLTAGE_OUT] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .m = 22070,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .b = -1800,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) [PSC_CURRENT_IN] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) .m = 13661,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) .b = -5200,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) [PSC_CURRENT_IN_L] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) .m = 6852,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) .b = -3100,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) [PSC_POWER] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) .m = 736,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) .b = -3300,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) [PSC_POWER_L] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) .m = 369,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) .b = -1900,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) [PSC_TEMPERATURE] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) .m = 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) [lm5064] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) [PSC_VOLTAGE_IN] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) .m = 4611,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) .b = -642,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) [PSC_VOLTAGE_OUT] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) .m = 4621,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) .b = 423,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) [PSC_CURRENT_IN] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) .m = 10742,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) .b = 1552,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) [PSC_CURRENT_IN_L] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) .m = 5456,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) .b = 2118,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) [PSC_POWER] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) .m = 1204,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) .b = 8524,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) .R = -3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) [PSC_POWER_L] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) .m = 612,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) .b = 11202,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) .R = -3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) [PSC_TEMPERATURE] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) .m = 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) [lm5066] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) [PSC_VOLTAGE_IN] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) .m = 4587,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) .b = -1200,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) [PSC_VOLTAGE_OUT] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) .m = 4587,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) .b = -2400,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) [PSC_CURRENT_IN] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) .m = 10753,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) .b = -1200,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) [PSC_CURRENT_IN_L] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) .m = 5405,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) .b = -600,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) [PSC_POWER] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) .m = 1204,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) .b = -6000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) .R = -3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) [PSC_POWER_L] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) .m = 605,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) .b = -8000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) .R = -3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) [PSC_TEMPERATURE] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) .m = 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) [lm5066i] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) [PSC_VOLTAGE_IN] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) .m = 4617,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) .b = -140,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) [PSC_VOLTAGE_OUT] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) .m = 4602,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) .b = 500,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) [PSC_CURRENT_IN] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) .m = 15076,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) .b = -504,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) [PSC_CURRENT_IN_L] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) .m = 7645,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) .b = 100,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) .R = -2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) [PSC_POWER] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) .m = 1701,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) .b = -4000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) .R = -3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) [PSC_POWER_L] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) .m = 861,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) .b = -965,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) .R = -3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) [PSC_TEMPERATURE] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) .m = 16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) struct lm25066_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) int id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) u16 rlimit; /* Maximum register value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) struct pmbus_driver_info info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) #define to_lm25066_data(x) container_of(x, struct lm25066_data, info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) static const struct i2c_device_id lm25066_id[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) static int lm25066_read_word_data(struct i2c_client *client, int page,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) int phase, int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) const struct lm25066_data *data = to_lm25066_data(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) switch (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) case PMBUS_VIRT_READ_VMON:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) ret = pmbus_read_word_data(client, 0, 0xff, LM25066_READ_VAUX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) /* Adjust returned value to match VIN coefficients */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) switch (data->id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) case lm25056:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) /* VIN: 6.14 mV VAUX: 293 uV LSB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) ret = DIV_ROUND_CLOSEST(ret * 293, 6140);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) case lm25066:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) /* VIN: 4.54 mV VAUX: 283.2 uV LSB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) ret = DIV_ROUND_CLOSEST(ret * 2832, 45400);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) case lm5064:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) /* VIN: 4.53 mV VAUX: 700 uV LSB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) ret = DIV_ROUND_CLOSEST(ret * 70, 453);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) case lm5066:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) case lm5066i:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) /* VIN: 2.18 mV VAUX: 725 uV LSB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) ret = DIV_ROUND_CLOSEST(ret * 725, 2180);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) case PMBUS_READ_IIN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) LM25066_MFR_READ_IIN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) case PMBUS_READ_PIN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) LM25066_MFR_READ_PIN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) case PMBUS_IIN_OC_WARN_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) LM25066_MFR_IIN_OC_WARN_LIMIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) case PMBUS_PIN_OP_WARN_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) LM25066_MFR_PIN_OP_WARN_LIMIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) case PMBUS_VIRT_READ_VIN_AVG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) LM25066_READ_AVG_VIN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) case PMBUS_VIRT_READ_VOUT_AVG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) LM25066_READ_AVG_VOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) case PMBUS_VIRT_READ_IIN_AVG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) LM25066_READ_AVG_IIN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) case PMBUS_VIRT_READ_PIN_AVG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) LM25066_READ_AVG_PIN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) case PMBUS_VIRT_READ_PIN_MAX:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) LM25066_READ_PIN_PEAK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) case PMBUS_VIRT_RESET_PIN_HISTORY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) case PMBUS_VIRT_SAMPLES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) ret = pmbus_read_byte_data(client, 0, LM25066_SAMPLES_FOR_AVG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) ret = 1 << ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) ret = -ENODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) static int lm25056_read_word_data(struct i2c_client *client, int page,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) int phase, int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) switch (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) case PMBUS_VIRT_VMON_UV_WARN_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) LM25056_VAUX_UV_WARN_LIMIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) /* Adjust returned value to match VIN coefficients */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) ret = DIV_ROUND_CLOSEST(ret * 293, 6140);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) case PMBUS_VIRT_VMON_OV_WARN_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) LM25056_VAUX_OV_WARN_LIMIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) /* Adjust returned value to match VIN coefficients */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) ret = DIV_ROUND_CLOSEST(ret * 293, 6140);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) ret = lm25066_read_word_data(client, page, phase, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) static int lm25056_read_byte_data(struct i2c_client *client, int page, int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) int ret, s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) switch (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) case PMBUS_VIRT_STATUS_VMON:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) ret = pmbus_read_byte_data(client, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) PMBUS_STATUS_MFR_SPECIFIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) s = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) if (ret & LM25056_MFR_STS_VAUX_UV_WARN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) s |= PB_VOLTAGE_UV_WARNING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) if (ret & LM25056_MFR_STS_VAUX_OV_WARN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) s |= PB_VOLTAGE_OV_WARNING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) ret = s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) ret = -ENODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) static int lm25066_write_word_data(struct i2c_client *client, int page, int reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) u16 word)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) const struct lm25066_data *data = to_lm25066_data(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) switch (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) case PMBUS_POUT_OP_FAULT_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) case PMBUS_POUT_OP_WARN_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) case PMBUS_VOUT_UV_WARN_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) case PMBUS_OT_FAULT_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) case PMBUS_OT_WARN_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) case PMBUS_IIN_OC_FAULT_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) case PMBUS_VIN_UV_WARN_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) case PMBUS_VIN_UV_FAULT_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) case PMBUS_VIN_OV_FAULT_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) case PMBUS_VIN_OV_WARN_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) word = ((s16)word < 0) ? 0 : clamp_val(word, 0, data->rlimit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) ret = pmbus_write_word_data(client, 0, reg, word);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) pmbus_clear_cache(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) case PMBUS_IIN_OC_WARN_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) word = ((s16)word < 0) ? 0 : clamp_val(word, 0, data->rlimit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) ret = pmbus_write_word_data(client, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) LM25066_MFR_IIN_OC_WARN_LIMIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) word);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) pmbus_clear_cache(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) case PMBUS_PIN_OP_WARN_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) word = ((s16)word < 0) ? 0 : clamp_val(word, 0, data->rlimit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) ret = pmbus_write_word_data(client, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) LM25066_MFR_PIN_OP_WARN_LIMIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) word);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) pmbus_clear_cache(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) case PMBUS_VIRT_VMON_UV_WARN_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) /* Adjust from VIN coefficients (for LM25056) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) word = DIV_ROUND_CLOSEST((int)word * 6140, 293);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) word = ((s16)word < 0) ? 0 : clamp_val(word, 0, data->rlimit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) ret = pmbus_write_word_data(client, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) LM25056_VAUX_UV_WARN_LIMIT, word);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) pmbus_clear_cache(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) case PMBUS_VIRT_VMON_OV_WARN_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) /* Adjust from VIN coefficients (for LM25056) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) word = DIV_ROUND_CLOSEST((int)word * 6140, 293);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) word = ((s16)word < 0) ? 0 : clamp_val(word, 0, data->rlimit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) ret = pmbus_write_word_data(client, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) LM25056_VAUX_OV_WARN_LIMIT, word);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) pmbus_clear_cache(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) case PMBUS_VIRT_RESET_PIN_HISTORY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) ret = pmbus_write_byte(client, 0, LM25066_CLEAR_PIN_PEAK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) case PMBUS_VIRT_SAMPLES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) word = clamp_val(word, 1, LM25066_SAMPLES_FOR_AVG_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) ret = pmbus_write_byte_data(client, 0, LM25066_SAMPLES_FOR_AVG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) ilog2(word));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) ret = -ENODATA;
^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 ret;
^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 lm25066_probe(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) int config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) struct lm25066_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) struct pmbus_driver_info *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) struct __coeff *coeff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) if (!i2c_check_functionality(client->adapter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) I2C_FUNC_SMBUS_READ_BYTE_DATA))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) data = devm_kzalloc(&client->dev, sizeof(struct lm25066_data),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) if (!data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) config = i2c_smbus_read_byte_data(client, LM25066_DEVICE_SETUP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) if (config < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) return config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) data->id = i2c_match_id(lm25066_id, client)->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) info = &data->info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) info->pages = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) info->format[PSC_VOLTAGE_IN] = direct;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) info->format[PSC_VOLTAGE_OUT] = direct;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) info->format[PSC_CURRENT_IN] = direct;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) info->format[PSC_TEMPERATURE] = direct;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) info->format[PSC_POWER] = direct;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VMON
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) | PMBUS_HAVE_PIN | PMBUS_HAVE_IIN | PMBUS_HAVE_STATUS_INPUT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_SAMPLES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) if (data->id == lm25056) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) info->func[0] |= PMBUS_HAVE_STATUS_VMON;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) info->read_word_data = lm25056_read_word_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) info->read_byte_data = lm25056_read_byte_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) data->rlimit = 0x0fff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) info->func[0] |= PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) info->read_word_data = lm25066_read_word_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) data->rlimit = 0x0fff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) info->write_word_data = lm25066_write_word_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) coeff = &lm25066_coeff[data->id][0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) info->m[PSC_TEMPERATURE] = coeff[PSC_TEMPERATURE].m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) info->b[PSC_TEMPERATURE] = coeff[PSC_TEMPERATURE].b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) info->R[PSC_TEMPERATURE] = coeff[PSC_TEMPERATURE].R;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) info->m[PSC_VOLTAGE_IN] = coeff[PSC_VOLTAGE_IN].m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) info->b[PSC_VOLTAGE_IN] = coeff[PSC_VOLTAGE_IN].b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) info->R[PSC_VOLTAGE_IN] = coeff[PSC_VOLTAGE_IN].R;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) info->m[PSC_VOLTAGE_OUT] = coeff[PSC_VOLTAGE_OUT].m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) info->b[PSC_VOLTAGE_OUT] = coeff[PSC_VOLTAGE_OUT].b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) info->R[PSC_VOLTAGE_OUT] = coeff[PSC_VOLTAGE_OUT].R;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) info->R[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN].R;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) info->R[PSC_POWER] = coeff[PSC_POWER].R;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) if (config & LM25066_DEV_SETUP_CL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) info->m[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN_L].m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) info->b[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN_L].b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) info->m[PSC_POWER] = coeff[PSC_POWER_L].m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) info->b[PSC_POWER] = coeff[PSC_POWER_L].b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) info->m[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN].m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) info->b[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN].b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) info->m[PSC_POWER] = coeff[PSC_POWER].m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) info->b[PSC_POWER] = coeff[PSC_POWER].b;
^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) return pmbus_do_probe(client, 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 const struct i2c_device_id lm25066_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) {"lm25056", lm25056},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) {"lm25066", lm25066},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) {"lm5064", lm5064},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) {"lm5066", lm5066},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) {"lm5066i", lm5066i},
^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)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) MODULE_DEVICE_TABLE(i2c, lm25066_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) /* This is the driver that will be inserted */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) static struct i2c_driver lm25066_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) .name = "lm25066",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) .probe_new = lm25066_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) .remove = pmbus_do_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) .id_table = lm25066_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) module_i2c_driver(lm25066_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) MODULE_AUTHOR("Guenter Roeck");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) MODULE_DESCRIPTION("PMBus driver for LM25066 and compatible chips");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags