190 lines
5.6 KiB
C
190 lines
5.6 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2019, Linaro Limited
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*/
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#include <linux/bitops.h>
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#include <linux/regmap.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include "tsens.h"
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/* ----- SROT ------ */
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#define SROT_HW_VER_OFF 0x0000
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#define SROT_CTRL_OFF 0x0004
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/* ----- TM ------ */
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#define TM_INT_EN_OFF 0x0000
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#define TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF 0x0004
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#define TM_Sn_STATUS_OFF 0x0044
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#define TM_TRDY_OFF 0x0084
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#define TM_HIGH_LOW_INT_STATUS_OFF 0x0088
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#define TM_HIGH_LOW_Sn_INT_THRESHOLD_OFF 0x0090
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struct tsens_legacy_calibration_format tsens_qcs404_nvmem = {
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.base_len = 8,
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.base_shift = 2,
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.sp_len = 6,
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.mode = { 4, 0 },
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.invalid = { 4, 2 },
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.base = { { 4, 3 }, { 4, 11 } },
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.sp = {
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{ { 0, 0 }, { 0, 6 } },
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{ { 0, 12 }, { 0, 18 } },
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{ { 0, 24 }, { 0, 30 } },
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{ { 1, 4 }, { 1, 10 } },
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{ { 1, 16 }, { 1, 22 } },
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{ { 2, 0 }, { 2, 6 } },
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{ { 2, 12 }, { 2, 18 } },
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{ { 2, 24 }, { 2, 30 } },
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{ { 3, 4 }, { 3, 10 } },
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{ { 3, 16 }, { 3, 22 } },
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},
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};
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static int calibrate_v1(struct tsens_priv *priv)
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{
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u32 p1[10], p2[10];
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u32 *qfprom_cdata;
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int mode, ret;
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ret = tsens_calibrate_common(priv);
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if (!ret)
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return 0;
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qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
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if (IS_ERR(qfprom_cdata))
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return PTR_ERR(qfprom_cdata);
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mode = tsens_read_calibration_legacy(priv, &tsens_qcs404_nvmem,
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p1, p2,
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qfprom_cdata, NULL);
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compute_intercept_slope(priv, p1, p2, mode);
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kfree(qfprom_cdata);
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return 0;
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}
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/* v1.x: msm8956,8976,qcs404,405 */
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static struct tsens_features tsens_v1_feat = {
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.ver_major = VER_1_X,
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.crit_int = 0,
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.combo_int = 0,
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.adc = 1,
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.srot_split = 1,
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.max_sensors = 11,
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.trip_min_temp = -40000,
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.trip_max_temp = 120000,
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};
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static const struct reg_field tsens_v1_regfields[MAX_REGFIELDS] = {
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/* ----- SROT ------ */
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/* VERSION */
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[VER_MAJOR] = REG_FIELD(SROT_HW_VER_OFF, 28, 31),
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[VER_MINOR] = REG_FIELD(SROT_HW_VER_OFF, 16, 27),
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[VER_STEP] = REG_FIELD(SROT_HW_VER_OFF, 0, 15),
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/* CTRL_OFFSET */
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[TSENS_EN] = REG_FIELD(SROT_CTRL_OFF, 0, 0),
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[TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1, 1),
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[SENSOR_EN] = REG_FIELD(SROT_CTRL_OFF, 3, 13),
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/* ----- TM ------ */
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/* INTERRUPT ENABLE */
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[INT_EN] = REG_FIELD(TM_INT_EN_OFF, 0, 0),
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/* UPPER/LOWER TEMPERATURE THRESHOLDS */
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REG_FIELD_FOR_EACH_SENSOR11(LOW_THRESH, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 0, 9),
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REG_FIELD_FOR_EACH_SENSOR11(UP_THRESH, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 10, 19),
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/* UPPER/LOWER INTERRUPTS [CLEAR/STATUS] */
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REG_FIELD_FOR_EACH_SENSOR11(LOW_INT_CLEAR, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 20, 20),
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REG_FIELD_FOR_EACH_SENSOR11(UP_INT_CLEAR, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 21, 21),
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[LOW_INT_STATUS_0] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 0, 0),
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[LOW_INT_STATUS_1] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 1, 1),
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[LOW_INT_STATUS_2] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 2, 2),
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[LOW_INT_STATUS_3] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 3, 3),
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[LOW_INT_STATUS_4] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 4, 4),
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[LOW_INT_STATUS_5] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 5, 5),
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[LOW_INT_STATUS_6] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 6, 6),
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[LOW_INT_STATUS_7] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 7, 7),
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[UP_INT_STATUS_0] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 8, 8),
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[UP_INT_STATUS_1] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 9, 9),
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[UP_INT_STATUS_2] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 10, 10),
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[UP_INT_STATUS_3] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 11, 11),
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[UP_INT_STATUS_4] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 12, 12),
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[UP_INT_STATUS_5] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 13, 13),
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[UP_INT_STATUS_6] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 14, 14),
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[UP_INT_STATUS_7] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 15, 15),
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/* NO CRITICAL INTERRUPT SUPPORT on v1 */
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/* Sn_STATUS */
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REG_FIELD_FOR_EACH_SENSOR11(LAST_TEMP, TM_Sn_STATUS_OFF, 0, 9),
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REG_FIELD_FOR_EACH_SENSOR11(VALID, TM_Sn_STATUS_OFF, 14, 14),
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/* xxx_STATUS bits: 1 == threshold violated */
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REG_FIELD_FOR_EACH_SENSOR11(MIN_STATUS, TM_Sn_STATUS_OFF, 10, 10),
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REG_FIELD_FOR_EACH_SENSOR11(LOWER_STATUS, TM_Sn_STATUS_OFF, 11, 11),
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REG_FIELD_FOR_EACH_SENSOR11(UPPER_STATUS, TM_Sn_STATUS_OFF, 12, 12),
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/* No CRITICAL field on v1.x */
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REG_FIELD_FOR_EACH_SENSOR11(MAX_STATUS, TM_Sn_STATUS_OFF, 13, 13),
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/* TRDY: 1=ready, 0=in progress */
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[TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0),
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};
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static int __init init_8956(struct tsens_priv *priv) {
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priv->sensor[0].slope = 3313;
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priv->sensor[1].slope = 3275;
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priv->sensor[2].slope = 3320;
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priv->sensor[3].slope = 3246;
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priv->sensor[4].slope = 3279;
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priv->sensor[5].slope = 3257;
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priv->sensor[6].slope = 3234;
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priv->sensor[7].slope = 3269;
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priv->sensor[8].slope = 3255;
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priv->sensor[9].slope = 3239;
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priv->sensor[10].slope = 3286;
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return init_common(priv);
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}
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static const struct tsens_ops ops_generic_v1 = {
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.init = init_common,
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.calibrate = calibrate_v1,
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.get_temp = get_temp_tsens_valid,
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};
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struct tsens_plat_data data_tsens_v1 = {
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.ops = &ops_generic_v1,
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.feat = &tsens_v1_feat,
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.fields = tsens_v1_regfields,
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};
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static const struct tsens_ops ops_8956 = {
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.init = init_8956,
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.calibrate = tsens_calibrate_common,
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.get_temp = get_temp_tsens_valid,
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};
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struct tsens_plat_data data_8956 = {
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.num_sensors = 11,
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.ops = &ops_8956,
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.feat = &tsens_v1_feat,
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.fields = tsens_v1_regfields,
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};
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static const struct tsens_ops ops_8976 = {
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.init = init_common,
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.calibrate = tsens_calibrate_common,
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.get_temp = get_temp_tsens_valid,
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};
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struct tsens_plat_data data_8976 = {
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.num_sensors = 11,
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.ops = &ops_8976,
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.feat = &tsens_v1_feat,
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.fields = tsens_v1_regfields,
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};
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