1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2019, Linaro Limited 4 */ 5 6 #include <linux/bitops.h> 7 #include <linux/regmap.h> 8 #include <linux/delay.h> 9 #include <linux/slab.h> 10 #include "tsens.h" 11 12 /* ----- SROT ------ */ 13 #define SROT_HW_VER_OFF 0x0000 14 #define SROT_CTRL_OFF 0x0004 15 16 /* ----- TM ------ */ 17 #define TM_INT_EN_OFF 0x0000 18 #define TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF 0x0004 19 #define TM_Sn_STATUS_OFF 0x0044 20 #define TM_TRDY_OFF 0x0084 21 #define TM_HIGH_LOW_INT_STATUS_OFF 0x0088 22 #define TM_HIGH_LOW_Sn_INT_THRESHOLD_OFF 0x0090 23 24 struct tsens_legacy_calibration_format tsens_qcs404_nvmem = { 25 .base_len = 8, 26 .base_shift = 2, 27 .sp_len = 6, 28 .mode = { 4, 0 }, 29 .invalid = { 4, 2 }, 30 .base = { { 4, 3 }, { 4, 11 } }, 31 .sp = { 32 { { 0, 0 }, { 0, 6 } }, 33 { { 0, 12 }, { 0, 18 } }, 34 { { 0, 24 }, { 0, 30 } }, 35 { { 1, 4 }, { 1, 10 } }, 36 { { 1, 16 }, { 1, 22 } }, 37 { { 2, 0 }, { 2, 6 } }, 38 { { 2, 12 }, { 2, 18 } }, 39 { { 2, 24 }, { 2, 30 } }, 40 { { 3, 4 }, { 3, 10 } }, 41 { { 3, 16 }, { 3, 22 } }, 42 }, 43 }; 44 45 static int calibrate_v1(struct tsens_priv *priv) 46 { 47 u32 p1[10], p2[10]; 48 u32 *qfprom_cdata; 49 int mode, ret; 50 51 ret = tsens_calibrate_common(priv); 52 if (!ret) 53 return 0; 54 55 qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib"); 56 if (IS_ERR(qfprom_cdata)) 57 return PTR_ERR(qfprom_cdata); 58 59 mode = tsens_read_calibration_legacy(priv, &tsens_qcs404_nvmem, 60 p1, p2, 61 qfprom_cdata, NULL); 62 63 compute_intercept_slope(priv, p1, p2, mode); 64 kfree(qfprom_cdata); 65 66 return 0; 67 } 68 69 /* v1.x: msm8956,8976,qcs404,405 */ 70 71 static struct tsens_features tsens_v1_feat = { 72 .ver_major = VER_1_X, 73 .crit_int = 0, 74 .combo_int = 0, 75 .adc = 1, 76 .srot_split = 1, 77 .max_sensors = 11, 78 .trip_min_temp = -40000, 79 .trip_max_temp = 120000, 80 }; 81 82 static const struct reg_field tsens_v1_regfields[MAX_REGFIELDS] = { 83 /* ----- SROT ------ */ 84 /* VERSION */ 85 [VER_MAJOR] = REG_FIELD(SROT_HW_VER_OFF, 28, 31), 86 [VER_MINOR] = REG_FIELD(SROT_HW_VER_OFF, 16, 27), 87 [VER_STEP] = REG_FIELD(SROT_HW_VER_OFF, 0, 15), 88 /* CTRL_OFFSET */ 89 [TSENS_EN] = REG_FIELD(SROT_CTRL_OFF, 0, 0), 90 [TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1, 1), 91 [SENSOR_EN] = REG_FIELD(SROT_CTRL_OFF, 3, 13), 92 93 /* ----- TM ------ */ 94 /* INTERRUPT ENABLE */ 95 [INT_EN] = REG_FIELD(TM_INT_EN_OFF, 0, 0), 96 97 /* UPPER/LOWER TEMPERATURE THRESHOLDS */ 98 REG_FIELD_FOR_EACH_SENSOR11(LOW_THRESH, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 0, 9), 99 REG_FIELD_FOR_EACH_SENSOR11(UP_THRESH, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 10, 19), 100 101 /* UPPER/LOWER INTERRUPTS [CLEAR/STATUS] */ 102 REG_FIELD_FOR_EACH_SENSOR11(LOW_INT_CLEAR, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 20, 20), 103 REG_FIELD_FOR_EACH_SENSOR11(UP_INT_CLEAR, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 21, 21), 104 [LOW_INT_STATUS_0] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 0, 0), 105 [LOW_INT_STATUS_1] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 1, 1), 106 [LOW_INT_STATUS_2] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 2, 2), 107 [LOW_INT_STATUS_3] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 3, 3), 108 [LOW_INT_STATUS_4] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 4, 4), 109 [LOW_INT_STATUS_5] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 5, 5), 110 [LOW_INT_STATUS_6] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 6, 6), 111 [LOW_INT_STATUS_7] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 7, 7), 112 [UP_INT_STATUS_0] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 8, 8), 113 [UP_INT_STATUS_1] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 9, 9), 114 [UP_INT_STATUS_2] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 10, 10), 115 [UP_INT_STATUS_3] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 11, 11), 116 [UP_INT_STATUS_4] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 12, 12), 117 [UP_INT_STATUS_5] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 13, 13), 118 [UP_INT_STATUS_6] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 14, 14), 119 [UP_INT_STATUS_7] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 15, 15), 120 121 /* NO CRITICAL INTERRUPT SUPPORT on v1 */ 122 123 /* Sn_STATUS */ 124 REG_FIELD_FOR_EACH_SENSOR11(LAST_TEMP, TM_Sn_STATUS_OFF, 0, 9), 125 REG_FIELD_FOR_EACH_SENSOR11(VALID, TM_Sn_STATUS_OFF, 14, 14), 126 /* xxx_STATUS bits: 1 == threshold violated */ 127 REG_FIELD_FOR_EACH_SENSOR11(MIN_STATUS, TM_Sn_STATUS_OFF, 10, 10), 128 REG_FIELD_FOR_EACH_SENSOR11(LOWER_STATUS, TM_Sn_STATUS_OFF, 11, 11), 129 REG_FIELD_FOR_EACH_SENSOR11(UPPER_STATUS, TM_Sn_STATUS_OFF, 12, 12), 130 /* No CRITICAL field on v1.x */ 131 REG_FIELD_FOR_EACH_SENSOR11(MAX_STATUS, TM_Sn_STATUS_OFF, 13, 13), 132 133 /* TRDY: 1=ready, 0=in progress */ 134 [TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0), 135 }; 136 137 static int __init init_8956(struct tsens_priv *priv) { 138 priv->sensor[0].slope = 3313; 139 priv->sensor[1].slope = 3275; 140 priv->sensor[2].slope = 3320; 141 priv->sensor[3].slope = 3246; 142 priv->sensor[4].slope = 3279; 143 priv->sensor[5].slope = 3257; 144 priv->sensor[6].slope = 3234; 145 priv->sensor[7].slope = 3269; 146 priv->sensor[8].slope = 3255; 147 priv->sensor[9].slope = 3239; 148 priv->sensor[10].slope = 3286; 149 150 return init_common(priv); 151 } 152 153 static const struct tsens_ops ops_generic_v1 = { 154 .init = init_common, 155 .calibrate = calibrate_v1, 156 .get_temp = get_temp_tsens_valid, 157 }; 158 159 struct tsens_plat_data data_tsens_v1 = { 160 .ops = &ops_generic_v1, 161 .feat = &tsens_v1_feat, 162 .fields = tsens_v1_regfields, 163 }; 164 165 static const struct tsens_ops ops_8956 = { 166 .init = init_8956, 167 .calibrate = tsens_calibrate_common, 168 .get_temp = get_temp_tsens_valid, 169 }; 170 171 struct tsens_plat_data data_8956 = { 172 .num_sensors = 11, 173 .ops = &ops_8956, 174 .feat = &tsens_v1_feat, 175 .fields = tsens_v1_regfields, 176 }; 177 178 static const struct tsens_ops ops_8976 = { 179 .init = init_common, 180 .calibrate = tsens_calibrate_common, 181 .get_temp = get_temp_tsens_valid, 182 }; 183 184 struct tsens_plat_data data_8976 = { 185 .num_sensors = 11, 186 .ops = &ops_8976, 187 .feat = &tsens_v1_feat, 188 .fields = tsens_v1_regfields, 189 }; 190