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 .adc = 0, 35 .srot_split = 1, 36 .max_sensors = 16, 37 }; 38 39 static const struct reg_field tsens_v2_regfields[MAX_REGFIELDS] = { 40 /* ----- SROT ------ */ 41 /* VERSION */ 42 [VER_MAJOR] = REG_FIELD(SROT_HW_VER_OFF, 28, 31), 43 [VER_MINOR] = REG_FIELD(SROT_HW_VER_OFF, 16, 27), 44 [VER_STEP] = REG_FIELD(SROT_HW_VER_OFF, 0, 15), 45 /* CTRL_OFF */ 46 [TSENS_EN] = REG_FIELD(SROT_CTRL_OFF, 0, 0), 47 [TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1, 1), 48 49 /* ----- TM ------ */ 50 /* INTERRUPT ENABLE */ 51 /* v2 has separate enables for UPPER/LOWER/CRITICAL interrupts */ 52 [INT_EN] = REG_FIELD(TM_INT_EN_OFF, 0, 2), 53 54 /* TEMPERATURE THRESHOLDS */ 55 REG_FIELD_FOR_EACH_SENSOR16(LOW_THRESH, TM_Sn_UPPER_LOWER_THRESHOLD_OFF, 0, 11), 56 REG_FIELD_FOR_EACH_SENSOR16(UP_THRESH, TM_Sn_UPPER_LOWER_THRESHOLD_OFF, 12, 23), 57 REG_FIELD_FOR_EACH_SENSOR16(CRIT_THRESH, TM_Sn_CRITICAL_THRESHOLD_OFF, 0, 11), 58 59 /* INTERRUPTS [CLEAR/STATUS/MASK] */ 60 REG_FIELD_SPLIT_BITS_0_15(LOW_INT_STATUS, TM_UPPER_LOWER_INT_STATUS_OFF), 61 REG_FIELD_SPLIT_BITS_0_15(LOW_INT_CLEAR, TM_UPPER_LOWER_INT_CLEAR_OFF), 62 REG_FIELD_SPLIT_BITS_0_15(LOW_INT_MASK, TM_UPPER_LOWER_INT_MASK_OFF), 63 REG_FIELD_SPLIT_BITS_16_31(UP_INT_STATUS, TM_UPPER_LOWER_INT_STATUS_OFF), 64 REG_FIELD_SPLIT_BITS_16_31(UP_INT_CLEAR, TM_UPPER_LOWER_INT_CLEAR_OFF), 65 REG_FIELD_SPLIT_BITS_16_31(UP_INT_MASK, TM_UPPER_LOWER_INT_MASK_OFF), 66 REG_FIELD_SPLIT_BITS_0_15(CRIT_INT_STATUS, TM_CRITICAL_INT_STATUS_OFF), 67 REG_FIELD_SPLIT_BITS_0_15(CRIT_INT_CLEAR, TM_CRITICAL_INT_CLEAR_OFF), 68 REG_FIELD_SPLIT_BITS_0_15(CRIT_INT_MASK, TM_CRITICAL_INT_MASK_OFF), 69 70 /* WATCHDOG on v2.3 or later */ 71 [WDOG_BARK_STATUS] = REG_FIELD(TM_CRITICAL_INT_STATUS_OFF, 31, 31), 72 [WDOG_BARK_CLEAR] = REG_FIELD(TM_CRITICAL_INT_CLEAR_OFF, 31, 31), 73 [WDOG_BARK_MASK] = REG_FIELD(TM_CRITICAL_INT_MASK_OFF, 31, 31), 74 [CC_MON_STATUS] = REG_FIELD(TM_CRITICAL_INT_STATUS_OFF, 30, 30), 75 [CC_MON_CLEAR] = REG_FIELD(TM_CRITICAL_INT_CLEAR_OFF, 30, 30), 76 [CC_MON_MASK] = REG_FIELD(TM_CRITICAL_INT_MASK_OFF, 30, 30), 77 [WDOG_BARK_COUNT] = REG_FIELD(TM_WDOG_LOG_OFF, 0, 7), 78 79 /* Sn_STATUS */ 80 REG_FIELD_FOR_EACH_SENSOR16(LAST_TEMP, TM_Sn_STATUS_OFF, 0, 11), 81 REG_FIELD_FOR_EACH_SENSOR16(VALID, TM_Sn_STATUS_OFF, 21, 21), 82 /* xxx_STATUS bits: 1 == threshold violated */ 83 REG_FIELD_FOR_EACH_SENSOR16(MIN_STATUS, TM_Sn_STATUS_OFF, 16, 16), 84 REG_FIELD_FOR_EACH_SENSOR16(LOWER_STATUS, TM_Sn_STATUS_OFF, 17, 17), 85 REG_FIELD_FOR_EACH_SENSOR16(UPPER_STATUS, TM_Sn_STATUS_OFF, 18, 18), 86 REG_FIELD_FOR_EACH_SENSOR16(CRITICAL_STATUS, TM_Sn_STATUS_OFF, 19, 19), 87 REG_FIELD_FOR_EACH_SENSOR16(MAX_STATUS, TM_Sn_STATUS_OFF, 20, 20), 88 89 /* TRDY: 1=ready, 0=in progress */ 90 [TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0), 91 }; 92 93 static const struct tsens_ops ops_generic_v2 = { 94 .init = init_common, 95 .get_temp = get_temp_tsens_valid, 96 }; 97 98 struct tsens_plat_data data_tsens_v2 = { 99 .ops = &ops_generic_v2, 100 .feat = &tsens_v2_feat, 101 .fields = tsens_v2_regfields, 102 }; 103 104 /* Kept around for backward compatibility with old msm8996.dtsi */ 105 struct tsens_plat_data data_8996 = { 106 .num_sensors = 13, 107 .ops = &ops_generic_v2, 108 .feat = &tsens_v2_feat, 109 .fields = tsens_v2_regfields, 110 }; 111