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
31static 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
42static 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
53static 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
107static const struct tsens_ops ops_generic_v2 = {
108 .init = init_common,
109 .get_temp = get_temp_tsens_valid,
110};
111
112struct tsens_plat_data data_tsens_v2 = {
113 .ops = &ops_generic_v2,
114 .feat = &tsens_v2_feat,
115 .fields = tsens_v2_regfields,
116};
117
118struct tsens_plat_data data_ipq8074 = {
119 .ops = &ops_generic_v2,
120 .feat = &ipq8074_feat,
121 .fields = tsens_v2_regfields,
122};
123
124/* Kept around for backward compatibility with old msm8996.dtsi */
125struct tsens_plat_data data_8996 = {
126 .num_sensors = 13,
127 .ops = &ops_generic_v2,
128 .feat = &tsens_v2_feat,
129 .fields = tsens_v2_regfields,
130};
131

source code of linux/drivers/thermal/qcom/tsens-v2.c