^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 Analog Devices ADM1275 Hot-Swap Controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * and Digital Power Monitor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (c) 2011 Ericsson AB.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (c) 2018 Guenter Roeck
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^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/bitops.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/bitfield.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/log2.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "pmbus.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) enum chips { adm1075, adm1272, adm1275, adm1276, adm1278, adm1293, adm1294 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define ADM1275_MFR_STATUS_IOUT_WARN2 BIT(0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define ADM1293_MFR_STATUS_VAUX_UV_WARN BIT(5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define ADM1293_MFR_STATUS_VAUX_OV_WARN BIT(6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define ADM1275_PEAK_IOUT 0xd0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define ADM1275_PEAK_VIN 0xd1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define ADM1275_PEAK_VOUT 0xd2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define ADM1275_PMON_CONFIG 0xd4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define ADM1275_VIN_VOUT_SELECT BIT(6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define ADM1275_VRANGE BIT(5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define ADM1075_IRANGE_50 BIT(4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define ADM1075_IRANGE_25 BIT(3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define ADM1075_IRANGE_MASK (BIT(3) | BIT(4))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define ADM1272_IRANGE BIT(0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define ADM1278_TEMP1_EN BIT(3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define ADM1278_VIN_EN BIT(2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define ADM1278_VOUT_EN BIT(1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define ADM1293_IRANGE_25 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define ADM1293_IRANGE_50 BIT(6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define ADM1293_IRANGE_100 BIT(7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define ADM1293_IRANGE_200 (BIT(6) | BIT(7))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define ADM1293_IRANGE_MASK (BIT(6) | BIT(7))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define ADM1293_VIN_SEL_012 BIT(2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define ADM1293_VIN_SEL_074 BIT(3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define ADM1293_VIN_SEL_210 (BIT(2) | BIT(3))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define ADM1293_VIN_SEL_MASK (BIT(2) | BIT(3))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define ADM1293_VAUX_EN BIT(1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define ADM1278_PEAK_TEMP 0xd7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #define ADM1275_IOUT_WARN2_LIMIT 0xd7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #define ADM1275_DEVICE_CONFIG 0xd8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define ADM1275_IOUT_WARN2_SELECT BIT(4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #define ADM1276_PEAK_PIN 0xda
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #define ADM1075_READ_VAUX 0xdd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #define ADM1075_VAUX_OV_WARN_LIMIT 0xde
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define ADM1075_VAUX_UV_WARN_LIMIT 0xdf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #define ADM1293_IOUT_MIN 0xe3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) #define ADM1293_PIN_MIN 0xe4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #define ADM1075_VAUX_STATUS 0xf6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #define ADM1075_VAUX_OV_WARN BIT(7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #define ADM1075_VAUX_UV_WARN BIT(6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) #define ADM1275_VI_AVG_SHIFT 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) #define ADM1275_VI_AVG_MASK GENMASK(ADM1275_VI_AVG_SHIFT + 2, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) ADM1275_VI_AVG_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #define ADM1275_SAMPLES_AVG_MAX 128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #define ADM1278_PWR_AVG_SHIFT 11
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) #define ADM1278_PWR_AVG_MASK GENMASK(ADM1278_PWR_AVG_SHIFT + 2, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) ADM1278_PWR_AVG_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #define ADM1278_VI_AVG_SHIFT 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #define ADM1278_VI_AVG_MASK GENMASK(ADM1278_VI_AVG_SHIFT + 2, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) ADM1278_VI_AVG_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) struct adm1275_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) int id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) bool have_oc_fault;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) bool have_uc_fault;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) bool have_vout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) bool have_vaux_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) bool have_mfr_vaux_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) bool have_iout_min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) bool have_pin_min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) bool have_pin_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) bool have_temp_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) bool have_power_sampling;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) struct pmbus_driver_info info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) #define to_adm1275_data(x) container_of(x, struct adm1275_data, info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct coefficients {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) s16 m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) s16 b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) s16 R;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) static const struct coefficients adm1075_coefficients[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) [0] = { 27169, 0, -1 }, /* voltage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) [1] = { 806, 20475, -1 }, /* current, irange25 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) [2] = { 404, 20475, -1 }, /* current, irange50 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) [3] = { 8549, 0, -1 }, /* power, irange25 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) [4] = { 4279, 0, -1 }, /* power, irange50 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) static const struct coefficients adm1272_coefficients[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) [0] = { 6770, 0, -2 }, /* voltage, vrange 60V */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) [1] = { 4062, 0, -2 }, /* voltage, vrange 100V */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) [2] = { 1326, 20480, -1 }, /* current, vsense range 15mV */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) [3] = { 663, 20480, -1 }, /* current, vsense range 30mV */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) [4] = { 3512, 0, -2 }, /* power, vrange 60V, irange 15mV */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) [5] = { 21071, 0, -3 }, /* power, vrange 100V, irange 15mV */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) [6] = { 17561, 0, -3 }, /* power, vrange 60V, irange 30mV */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) [7] = { 10535, 0, -3 }, /* power, vrange 100V, irange 30mV */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) [8] = { 42, 31871, -1 }, /* temperature */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) static const struct coefficients adm1275_coefficients[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) [0] = { 19199, 0, -2 }, /* voltage, vrange set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) [1] = { 6720, 0, -1 }, /* voltage, vrange not set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) [2] = { 807, 20475, -1 }, /* current */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static const struct coefficients adm1276_coefficients[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) [0] = { 19199, 0, -2 }, /* voltage, vrange set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) [1] = { 6720, 0, -1 }, /* voltage, vrange not set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) [2] = { 807, 20475, -1 }, /* current */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) [3] = { 6043, 0, -2 }, /* power, vrange set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) [4] = { 2115, 0, -1 }, /* power, vrange not set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) static const struct coefficients adm1278_coefficients[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) [0] = { 19599, 0, -2 }, /* voltage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) [1] = { 800, 20475, -1 }, /* current */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) [2] = { 6123, 0, -2 }, /* power */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) [3] = { 42, 31880, -1 }, /* temperature */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) static const struct coefficients adm1293_coefficients[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) [0] = { 3333, -1, 0 }, /* voltage, vrange 1.2V */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) [1] = { 5552, -5, -1 }, /* voltage, vrange 7.4V */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) [2] = { 19604, -50, -2 }, /* voltage, vrange 21V */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) [3] = { 8000, -100, -2 }, /* current, irange25 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) [4] = { 4000, -100, -2 }, /* current, irange50 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) [5] = { 20000, -1000, -3 }, /* current, irange100 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) [6] = { 10000, -1000, -3 }, /* current, irange200 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) [7] = { 10417, 0, -1 }, /* power, 1.2V, irange25 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) [8] = { 5208, 0, -1 }, /* power, 1.2V, irange50 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) [9] = { 26042, 0, -2 }, /* power, 1.2V, irange100 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) [10] = { 13021, 0, -2 }, /* power, 1.2V, irange200 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) [11] = { 17351, 0, -2 }, /* power, 7.4V, irange25 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) [12] = { 8676, 0, -2 }, /* power, 7.4V, irange50 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) [13] = { 4338, 0, -2 }, /* power, 7.4V, irange100 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) [14] = { 21689, 0, -3 }, /* power, 7.4V, irange200 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) [15] = { 6126, 0, -2 }, /* power, 21V, irange25 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) [16] = { 30631, 0, -3 }, /* power, 21V, irange50 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) [17] = { 15316, 0, -3 }, /* power, 21V, irange100 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) [18] = { 7658, 0, -3 }, /* power, 21V, irange200 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) static int adm1275_read_pmon_config(const struct adm1275_data *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) struct i2c_client *client, bool is_power)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) int shift, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) u16 mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) * The PMON configuration register is a 16-bit register only on chips
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) * supporting power average sampling. On other chips it is an 8-bit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) * register.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) if (data->have_power_sampling) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) ret = i2c_smbus_read_word_data(client, ADM1275_PMON_CONFIG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) mask = is_power ? ADM1278_PWR_AVG_MASK : ADM1278_VI_AVG_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) shift = is_power ? ADM1278_PWR_AVG_SHIFT : ADM1278_VI_AVG_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) ret = i2c_smbus_read_byte_data(client, ADM1275_PMON_CONFIG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) mask = ADM1275_VI_AVG_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) shift = ADM1275_VI_AVG_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) return (ret & mask) >> shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) static int adm1275_write_pmon_config(const struct adm1275_data *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) bool is_power, u16 word)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) int shift, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) u16 mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) if (data->have_power_sampling) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) ret = i2c_smbus_read_word_data(client, ADM1275_PMON_CONFIG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) mask = is_power ? ADM1278_PWR_AVG_MASK : ADM1278_VI_AVG_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) shift = is_power ? ADM1278_PWR_AVG_SHIFT : ADM1278_VI_AVG_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) ret = i2c_smbus_read_byte_data(client, ADM1275_PMON_CONFIG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) mask = ADM1275_VI_AVG_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) shift = ADM1275_VI_AVG_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) word = (ret & ~mask) | ((word << shift) & mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) if (data->have_power_sampling)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) ret = i2c_smbus_write_word_data(client, ADM1275_PMON_CONFIG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) word);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) ret = i2c_smbus_write_byte_data(client, ADM1275_PMON_CONFIG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) word);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) return ret;
^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) static int adm1275_read_word_data(struct i2c_client *client, int page,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) int phase, int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) const struct adm1275_data *data = to_adm1275_data(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) if (page > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) switch (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) case PMBUS_IOUT_UC_FAULT_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) if (!data->have_uc_fault)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) ADM1275_IOUT_WARN2_LIMIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) case PMBUS_IOUT_OC_FAULT_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) if (!data->have_oc_fault)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) ADM1275_IOUT_WARN2_LIMIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) case PMBUS_VOUT_OV_WARN_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) if (data->have_vout)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) return -ENODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) ADM1075_VAUX_OV_WARN_LIMIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) case PMBUS_VOUT_UV_WARN_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) if (data->have_vout)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) return -ENODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) ADM1075_VAUX_UV_WARN_LIMIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) case PMBUS_READ_VOUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) if (data->have_vout)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) return -ENODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) ADM1075_READ_VAUX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) case PMBUS_VIRT_READ_IOUT_MIN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) if (!data->have_iout_min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) return -ENXIO;
^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) ADM1293_IOUT_MIN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) case PMBUS_VIRT_READ_IOUT_MAX:
^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) ADM1275_PEAK_IOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) case PMBUS_VIRT_READ_VOUT_MAX:
^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) ADM1275_PEAK_VOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) case PMBUS_VIRT_READ_VIN_MAX:
^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) ADM1275_PEAK_VIN);
^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_PIN_MIN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) if (!data->have_pin_min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) ADM1293_PIN_MIN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) case PMBUS_VIRT_READ_PIN_MAX:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) if (!data->have_pin_max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) return -ENXIO;
^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) ADM1276_PEAK_PIN);
^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_TEMP_MAX:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) if (!data->have_temp_max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) ret = pmbus_read_word_data(client, 0, 0xff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) ADM1278_PEAK_TEMP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) case PMBUS_VIRT_RESET_IOUT_HISTORY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) case PMBUS_VIRT_RESET_VOUT_HISTORY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) case PMBUS_VIRT_RESET_VIN_HISTORY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) case PMBUS_VIRT_RESET_PIN_HISTORY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) if (!data->have_pin_max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) case PMBUS_VIRT_RESET_TEMP_HISTORY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) if (!data->have_temp_max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) case PMBUS_VIRT_POWER_SAMPLES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) if (!data->have_power_sampling)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) ret = adm1275_read_pmon_config(data, client, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) ret = BIT(ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) case PMBUS_VIRT_IN_SAMPLES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) case PMBUS_VIRT_CURR_SAMPLES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) ret = adm1275_read_pmon_config(data, client, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) ret = BIT(ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) ret = -ENODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) static int adm1275_write_word_data(struct i2c_client *client, int page, int reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) u16 word)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) const struct adm1275_data *data = to_adm1275_data(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) if (page > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) switch (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) case PMBUS_IOUT_UC_FAULT_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) case PMBUS_IOUT_OC_FAULT_LIMIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) ret = pmbus_write_word_data(client, 0, ADM1275_IOUT_WARN2_LIMIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) word);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) case PMBUS_VIRT_RESET_IOUT_HISTORY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_IOUT, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) if (!ret && data->have_iout_min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) ret = pmbus_write_word_data(client, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) ADM1293_IOUT_MIN, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) case PMBUS_VIRT_RESET_VOUT_HISTORY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_VOUT, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) case PMBUS_VIRT_RESET_VIN_HISTORY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_VIN, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) case PMBUS_VIRT_RESET_PIN_HISTORY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) ret = pmbus_write_word_data(client, 0, ADM1276_PEAK_PIN, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) if (!ret && data->have_pin_min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) ret = pmbus_write_word_data(client, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) ADM1293_PIN_MIN, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) case PMBUS_VIRT_RESET_TEMP_HISTORY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) ret = pmbus_write_word_data(client, 0, ADM1278_PEAK_TEMP, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) case PMBUS_VIRT_POWER_SAMPLES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) if (!data->have_power_sampling)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) word = clamp_val(word, 1, ADM1275_SAMPLES_AVG_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) ret = adm1275_write_pmon_config(data, client, true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) ilog2(word));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) case PMBUS_VIRT_IN_SAMPLES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) case PMBUS_VIRT_CURR_SAMPLES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) word = clamp_val(word, 1, ADM1275_SAMPLES_AVG_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) ret = adm1275_write_pmon_config(data, client, false,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) ilog2(word));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) ret = -ENODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) static int adm1275_read_byte_data(struct i2c_client *client, int page, int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) const struct adm1275_data *data = to_adm1275_data(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) int mfr_status, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) if (page > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) switch (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) case PMBUS_STATUS_IOUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) ret = pmbus_read_byte_data(client, page, PMBUS_STATUS_IOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) if (!data->have_oc_fault && !data->have_uc_fault)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) mfr_status = pmbus_read_byte_data(client, page,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) PMBUS_STATUS_MFR_SPECIFIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) if (mfr_status < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) return mfr_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) if (mfr_status & ADM1275_MFR_STATUS_IOUT_WARN2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) ret |= data->have_oc_fault ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) PB_IOUT_OC_FAULT : PB_IOUT_UC_FAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) case PMBUS_STATUS_VOUT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) if (data->have_vout)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) return -ENODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) if (data->have_vaux_status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) mfr_status = pmbus_read_byte_data(client, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) ADM1075_VAUX_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) if (mfr_status < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) return mfr_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) if (mfr_status & ADM1075_VAUX_OV_WARN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) ret |= PB_VOLTAGE_OV_WARNING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) if (mfr_status & ADM1075_VAUX_UV_WARN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) ret |= PB_VOLTAGE_UV_WARNING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) } else if (data->have_mfr_vaux_status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) mfr_status = pmbus_read_byte_data(client, page,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) PMBUS_STATUS_MFR_SPECIFIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) if (mfr_status < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) return mfr_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) if (mfr_status & ADM1293_MFR_STATUS_VAUX_OV_WARN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) ret |= PB_VOLTAGE_OV_WARNING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) if (mfr_status & ADM1293_MFR_STATUS_VAUX_UV_WARN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) ret |= PB_VOLTAGE_UV_WARNING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) ret = -ENODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) static const struct i2c_device_id adm1275_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) { "adm1075", adm1075 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) { "adm1272", adm1272 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) { "adm1275", adm1275 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) { "adm1276", adm1276 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) { "adm1278", adm1278 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) { "adm1293", adm1293 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) { "adm1294", adm1294 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) MODULE_DEVICE_TABLE(i2c, adm1275_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) static int adm1275_probe(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) s32 (*config_read_fn)(const struct i2c_client *client, u8 reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) u8 block_buffer[I2C_SMBUS_BLOCK_MAX + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) int config, device_config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) struct pmbus_driver_info *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) struct adm1275_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) const struct i2c_device_id *mid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) const struct coefficients *coefficients;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) int vindex = -1, voindex = -1, cindex = -1, pindex = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) int tindex = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) u32 shunt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) if (!i2c_check_functionality(client->adapter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) I2C_FUNC_SMBUS_READ_BYTE_DATA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) | I2C_FUNC_SMBUS_BLOCK_DATA))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) ret = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, block_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) dev_err(&client->dev, "Failed to read Manufacturer ID\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) if (ret != 3 || strncmp(block_buffer, "ADI", 3)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) dev_err(&client->dev, "Unsupported Manufacturer ID\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, block_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) dev_err(&client->dev, "Failed to read Manufacturer Model\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) for (mid = adm1275_id; mid->name[0]; mid++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) if (!strncasecmp(mid->name, block_buffer, strlen(mid->name)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) if (!mid->name[0]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) dev_err(&client->dev, "Unsupported device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) if (strcmp(client->name, mid->name) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) dev_notice(&client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) "Device mismatch: Configured %s, detected %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) client->name, mid->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) if (mid->driver_data == adm1272 || mid->driver_data == adm1278 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) mid->driver_data == adm1293 || mid->driver_data == adm1294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) config_read_fn = i2c_smbus_read_word_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) config_read_fn = i2c_smbus_read_byte_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) config = config_read_fn(client, ADM1275_PMON_CONFIG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) if (config < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) return config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) device_config = config_read_fn(client, ADM1275_DEVICE_CONFIG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) if (device_config < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) return device_config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) data = devm_kzalloc(&client->dev, sizeof(struct adm1275_data),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) if (!data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) if (of_property_read_u32(client->dev.of_node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) "shunt-resistor-micro-ohms", &shunt))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) shunt = 1000; /* 1 mOhm if not set via DT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) if (shunt == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) data->id = mid->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) info = &data->info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) info->pages = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) info->format[PSC_VOLTAGE_IN] = direct;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) info->format[PSC_VOLTAGE_OUT] = direct;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) info->format[PSC_CURRENT_OUT] = direct;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) info->format[PSC_POWER] = direct;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) info->format[PSC_TEMPERATURE] = direct;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) info->func[0] = PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) PMBUS_HAVE_SAMPLES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) info->read_word_data = adm1275_read_word_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) info->read_byte_data = adm1275_read_byte_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) info->write_word_data = adm1275_write_word_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) switch (data->id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) case adm1075:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) if (device_config & ADM1275_IOUT_WARN2_SELECT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) data->have_oc_fault = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) data->have_uc_fault = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) data->have_pin_max = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) data->have_vaux_status = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) coefficients = adm1075_coefficients;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) vindex = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) switch (config & ADM1075_IRANGE_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) case ADM1075_IRANGE_25:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) cindex = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) pindex = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) case ADM1075_IRANGE_50:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) cindex = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) pindex = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) dev_err(&client->dev, "Invalid input current range");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) info->func[0] |= PMBUS_HAVE_VIN | PMBUS_HAVE_PIN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) | PMBUS_HAVE_STATUS_INPUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) if (config & ADM1275_VIN_VOUT_SELECT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) info->func[0] |=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) case adm1272:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) data->have_vout = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) data->have_pin_max = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) data->have_temp_max = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) data->have_power_sampling = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) coefficients = adm1272_coefficients;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) vindex = (config & ADM1275_VRANGE) ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) cindex = (config & ADM1272_IRANGE) ? 3 : 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) /* pindex depends on the combination of the above */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) switch (config & (ADM1275_VRANGE | ADM1272_IRANGE)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) pindex = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) case ADM1275_VRANGE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) pindex = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) case ADM1272_IRANGE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) pindex = 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) case ADM1275_VRANGE | ADM1272_IRANGE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) pindex = 7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) tindex = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) info->func[0] |= PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) /* Enable VOUT if not enabled (it is disabled by default) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) if (!(config & ADM1278_VOUT_EN)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) config |= ADM1278_VOUT_EN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) ret = i2c_smbus_write_byte_data(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) ADM1275_PMON_CONFIG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) dev_err(&client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) "Failed to enable VOUT monitoring\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) if (config & ADM1278_TEMP1_EN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) info->func[0] |=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) if (config & ADM1278_VIN_EN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) info->func[0] |= PMBUS_HAVE_VIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) case adm1275:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) if (device_config & ADM1275_IOUT_WARN2_SELECT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) data->have_oc_fault = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) data->have_uc_fault = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) data->have_vout = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) coefficients = adm1275_coefficients;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) vindex = (config & ADM1275_VRANGE) ? 0 : 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) cindex = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) if (config & ADM1275_VIN_VOUT_SELECT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) info->func[0] |=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) info->func[0] |=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) case adm1276:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) if (device_config & ADM1275_IOUT_WARN2_SELECT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) data->have_oc_fault = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) data->have_uc_fault = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) data->have_vout = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) data->have_pin_max = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) coefficients = adm1276_coefficients;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) vindex = (config & ADM1275_VRANGE) ? 0 : 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) cindex = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) pindex = (config & ADM1275_VRANGE) ? 3 : 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) info->func[0] |= PMBUS_HAVE_VIN | PMBUS_HAVE_PIN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) | PMBUS_HAVE_STATUS_INPUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) if (config & ADM1275_VIN_VOUT_SELECT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) info->func[0] |=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) case adm1278:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) data->have_vout = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) data->have_pin_max = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) data->have_temp_max = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) data->have_power_sampling = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) coefficients = adm1278_coefficients;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) vindex = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) cindex = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) pindex = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) tindex = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) info->func[0] |= PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) /* Enable VOUT & TEMP1 if not enabled (disabled by default) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) if ((config & (ADM1278_VOUT_EN | ADM1278_TEMP1_EN)) !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) (ADM1278_VOUT_EN | ADM1278_TEMP1_EN)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) config |= ADM1278_VOUT_EN | ADM1278_TEMP1_EN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) ret = i2c_smbus_write_byte_data(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) ADM1275_PMON_CONFIG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) dev_err(&client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) "Failed to enable VOUT monitoring\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) if (config & ADM1278_VIN_EN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) info->func[0] |= PMBUS_HAVE_VIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) case adm1293:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) case adm1294:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) data->have_iout_min = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) data->have_pin_min = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) data->have_pin_max = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) data->have_mfr_vaux_status = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) data->have_power_sampling = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) coefficients = adm1293_coefficients;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) voindex = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) switch (config & ADM1293_VIN_SEL_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) case ADM1293_VIN_SEL_012: /* 1.2V */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) vindex = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) case ADM1293_VIN_SEL_074: /* 7.4V */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) vindex = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) case ADM1293_VIN_SEL_210: /* 21V */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) vindex = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) default: /* disabled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) switch (config & ADM1293_IRANGE_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) case ADM1293_IRANGE_25:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) cindex = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) case ADM1293_IRANGE_50:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) cindex = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) case ADM1293_IRANGE_100:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) cindex = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) case ADM1293_IRANGE_200:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) cindex = 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) if (vindex >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) pindex = 7 + vindex * 4 + (cindex - 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) if (config & ADM1293_VAUX_EN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) info->func[0] |=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) info->func[0] |= PMBUS_HAVE_PIN |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) dev_err(&client->dev, "Unsupported device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) if (voindex < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) voindex = vindex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) if (vindex >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) info->m[PSC_VOLTAGE_IN] = coefficients[vindex].m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) info->b[PSC_VOLTAGE_IN] = coefficients[vindex].b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) info->R[PSC_VOLTAGE_IN] = coefficients[vindex].R;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) if (voindex >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) info->m[PSC_VOLTAGE_OUT] = coefficients[voindex].m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) info->b[PSC_VOLTAGE_OUT] = coefficients[voindex].b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) info->R[PSC_VOLTAGE_OUT] = coefficients[voindex].R;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) if (cindex >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) /* Scale current with sense resistor value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) info->m[PSC_CURRENT_OUT] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) coefficients[cindex].m * shunt / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) info->b[PSC_CURRENT_OUT] = coefficients[cindex].b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) info->R[PSC_CURRENT_OUT] = coefficients[cindex].R;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) if (pindex >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) info->m[PSC_POWER] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) coefficients[pindex].m * shunt / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) info->b[PSC_POWER] = coefficients[pindex].b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) info->R[PSC_POWER] = coefficients[pindex].R;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) if (tindex >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) info->m[PSC_TEMPERATURE] = coefficients[tindex].m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) info->b[PSC_TEMPERATURE] = coefficients[tindex].b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) info->R[PSC_TEMPERATURE] = coefficients[tindex].R;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) return pmbus_do_probe(client, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) static struct i2c_driver adm1275_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) .name = "adm1275",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) .probe_new = adm1275_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) .remove = pmbus_do_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) .id_table = adm1275_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) module_i2c_driver(adm1275_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) MODULE_AUTHOR("Guenter Roeck");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) MODULE_DESCRIPTION("PMBus driver for Analog Devices ADM1275 and compatibles");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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