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 | }; |
111 | |
112 | struct tsens_plat_data data_tsens_v2 = { |
113 | .ops = &ops_generic_v2, |
114 | .feat = &tsens_v2_feat, |
115 | .fields = tsens_v2_regfields, |
116 | }; |
117 | |
118 | struct 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 */ |
125 | struct 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 | |