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};
111