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};