tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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 .adc = 0,
35 .srot_split = 1,
36 .max_sensors = 16,
37};
38
39static 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
93static const struct tsens_ops ops_generic_v2 = {
94 .init = init_common,
95 .get_temp = get_temp_tsens_valid,
96};
97
98struct 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 */
105struct 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};