1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2015, The Linux Foundation. All rights reserved. 4 * Copyright (c) 2018, Linaro Limited 5 */ 6 7 #include <linux/bitops.h> 8 #include <linux/regmap.h> 9 #include "tsens.h" 10 11 /* ----- SROT ------ */ 12 #define SROT_HW_VER_OFF 0x0000 13 #define SROT_CTRL_OFF 0x0004 14 15 /* ----- TM ------ */ 16 #define TM_INT_EN_OFF 0x0004 17 #define TM_UPPER_LOWER_INT_STATUS_OFF 0x0008 18 #define TM_UPPER_LOWER_INT_CLEAR_OFF 0x000c 19 #define TM_UPPER_LOWER_INT_MASK_OFF 0x0010 20 #define TM_CRITICAL_INT_STATUS_OFF 0x0014 21 #define TM_CRITICAL_INT_CLEAR_OFF 0x0018 22 #define TM_CRITICAL_INT_MASK_OFF 0x001c 23 #define TM_Sn_UPPER_LOWER_THRESHOLD_OFF 0x0020 24 #define TM_Sn_CRITICAL_THRESHOLD_OFF 0x0060 25 #define TM_Sn_STATUS_OFF 0x00a0 26 #define TM_TRDY_OFF 0x00e4 27 #define TM_WDOG_LOG_OFF 0x013c 28 29 /* v2.x: 8996, 8998, sdm845 */ 30 31 static struct tsens_features tsens_v2_feat = { 32 .ver_major = VER_2_X, 33 .crit_int = 1, 34 .combo_int = 0, 35 .adc = 0, 36 .srot_split = 1, 37 .max_sensors = 16, 38 .trip_min_temp = -40000, 39 .trip_max_temp = 120000, 40 }; 41 42 static struct tsens_features ipq8074_feat = { 43 .ver_major = VER_2_X, 44 .crit_int = 1, 45 .combo_int = 1, 46 .adc = 0, 47 .srot_split = 1, 48 .max_sensors = 16, 49 .trip_min_temp = 0, 50 .trip_max_temp = 204000, 51 }; 52 53 static const struct reg_field tsens_v2_regfields[MAX_REGFIELDS] = { 54 /* ----- SROT ------ */ 55 /* VERSION */ 56 [VER_MAJOR] = REG_FIELD(SROT_HW_VER_OFF, 28, 31), 57 [VER_MINOR] = REG_FIELD(SROT_HW_VER_OFF, 16, 27), 58 [VER_STEP] = REG_FIELD(SROT_HW_VER_OFF, 0, 15), 59 /* CTRL_OFF */ 60 [TSENS_EN] = REG_FIELD(SROT_CTRL_OFF, 0, 0), 61 [TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1, 1), 62 63 /* ----- TM ------ */ 64 /* INTERRUPT ENABLE */ 65 /* v2 has separate enables for UPPER/LOWER/CRITICAL interrupts */ 66 [INT_EN] = REG_FIELD(TM_INT_EN_OFF, 0, 2), 67 68 /* TEMPERATURE THRESHOLDS */ 69 REG_FIELD_FOR_EACH_SENSOR16(LOW_THRESH, TM_Sn_UPPER_LOWER_THRESHOLD_OFF, 0, 11), 70 REG_FIELD_FOR_EACH_SENSOR16(UP_THRESH, TM_Sn_UPPER_LOWER_THRESHOLD_OFF, 12, 23), 71 REG_FIELD_FOR_EACH_SENSOR16(CRIT_THRESH, TM_Sn_CRITICAL_THRESHOLD_OFF, 0, 11), 72 73 /* INTERRUPTS [CLEAR/STATUS/MASK] */ 74 REG_FIELD_SPLIT_BITS_0_15(LOW_INT_STATUS, TM_UPPER_LOWER_INT_STATUS_OFF), 75 REG_FIELD_SPLIT_BITS_0_15(LOW_INT_CLEAR, TM_UPPER_LOWER_INT_CLEAR_OFF), 76 REG_FIELD_SPLIT_BITS_0_15(LOW_INT_MASK, TM_UPPER_LOWER_INT_MASK_OFF), 77 REG_FIELD_SPLIT_BITS_16_31(UP_INT_STATUS, TM_UPPER_LOWER_INT_STATUS_OFF), 78 REG_FIELD_SPLIT_BITS_16_31(UP_INT_CLEAR, TM_UPPER_LOWER_INT_CLEAR_OFF), 79 REG_FIELD_SPLIT_BITS_16_31(UP_INT_MASK, TM_UPPER_LOWER_INT_MASK_OFF), 80 REG_FIELD_SPLIT_BITS_0_15(CRIT_INT_STATUS, TM_CRITICAL_INT_STATUS_OFF), 81 REG_FIELD_SPLIT_BITS_0_15(CRIT_INT_CLEAR, TM_CRITICAL_INT_CLEAR_OFF), 82 REG_FIELD_SPLIT_BITS_0_15(CRIT_INT_MASK, TM_CRITICAL_INT_MASK_OFF), 83 84 /* WATCHDOG on v2.3 or later */ 85 [WDOG_BARK_STATUS] = REG_FIELD(TM_CRITICAL_INT_STATUS_OFF, 31, 31), 86 [WDOG_BARK_CLEAR] = REG_FIELD(TM_CRITICAL_INT_CLEAR_OFF, 31, 31), 87 [WDOG_BARK_MASK] = REG_FIELD(TM_CRITICAL_INT_MASK_OFF, 31, 31), 88 [CC_MON_STATUS] = REG_FIELD(TM_CRITICAL_INT_STATUS_OFF, 30, 30), 89 [CC_MON_CLEAR] = REG_FIELD(TM_CRITICAL_INT_CLEAR_OFF, 30, 30), 90 [CC_MON_MASK] = REG_FIELD(TM_CRITICAL_INT_MASK_OFF, 30, 30), 91 [WDOG_BARK_COUNT] = REG_FIELD(TM_WDOG_LOG_OFF, 0, 7), 92 93 /* Sn_STATUS */ 94 REG_FIELD_FOR_EACH_SENSOR16(LAST_TEMP, TM_Sn_STATUS_OFF, 0, 11), 95 REG_FIELD_FOR_EACH_SENSOR16(VALID, TM_Sn_STATUS_OFF, 21, 21), 96 /* xxx_STATUS bits: 1 == threshold violated */ 97 REG_FIELD_FOR_EACH_SENSOR16(MIN_STATUS, TM_Sn_STATUS_OFF, 16, 16), 98 REG_FIELD_FOR_EACH_SENSOR16(LOWER_STATUS, TM_Sn_STATUS_OFF, 17, 17), 99 REG_FIELD_FOR_EACH_SENSOR16(UPPER_STATUS, TM_Sn_STATUS_OFF, 18, 18), 100 REG_FIELD_FOR_EACH_SENSOR16(CRITICAL_STATUS, TM_Sn_STATUS_OFF, 19, 19), 101 REG_FIELD_FOR_EACH_SENSOR16(MAX_STATUS, TM_Sn_STATUS_OFF, 20, 20), 102 103 /* TRDY: 1=ready, 0=in progress */ 104 [TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0), 105 }; 106 107 static const struct tsens_ops ops_generic_v2 = { 108 .init = init_common, 109 .get_temp = get_temp_tsens_valid, 110 .resume = tsens_resume_common, 111 }; 112 113 struct tsens_plat_data data_tsens_v2 = { 114 .ops = &ops_generic_v2, 115 .feat = &tsens_v2_feat, 116 .fields = tsens_v2_regfields, 117 }; 118 119 struct tsens_plat_data data_ipq8074 = { 120 .ops = &ops_generic_v2, 121 .feat = &ipq8074_feat, 122 .fields = tsens_v2_regfields, 123 }; 124 125 /* Kept around for backward compatibility with old msm8996.dtsi */ 126 struct tsens_plat_data data_8996 = { 127 .num_sensors = 13, 128 .ops = &ops_generic_v2, 129 .feat = &tsens_v2_feat, 130 .fields = tsens_v2_regfields, 131 }; 132