1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Device access for Crystal Cove PMIC
4  *
5  * Copyright (C) 2013, 2014 Intel Corporation. All rights reserved.
6  *
7  * Author: Yang, Bin <bin.yang@intel.com>
8  * Author: Zhu, Lejun <lejun.zhu@linux.intel.com>
9  */
10 
11 #include <linux/interrupt.h>
12 #include <linux/regmap.h>
13 #include <linux/mfd/core.h>
14 #include <linux/mfd/intel_soc_pmic.h>
15 
16 #include "intel_soc_pmic_core.h"
17 
18 #define CRYSTAL_COVE_MAX_REGISTER	0xC6
19 
20 #define CRYSTAL_COVE_REG_IRQLVL1	0x02
21 #define CRYSTAL_COVE_REG_MIRQLVL1	0x0E
22 
23 #define CRYSTAL_COVE_IRQ_PWRSRC		0
24 #define CRYSTAL_COVE_IRQ_THRM		1
25 #define CRYSTAL_COVE_IRQ_BCU		2
26 #define CRYSTAL_COVE_IRQ_ADC		3
27 #define CRYSTAL_COVE_IRQ_CHGR		4
28 #define CRYSTAL_COVE_IRQ_GPIO		5
29 #define CRYSTAL_COVE_IRQ_VHDMIOCP	6
30 
31 static struct resource gpio_resources[] = {
32 	DEFINE_RES_IRQ_NAMED(CRYSTAL_COVE_IRQ_GPIO, "GPIO"),
33 };
34 
35 static struct resource pwrsrc_resources[] = {
36 	DEFINE_RES_IRQ_NAMED(CRYSTAL_COVE_IRQ_PWRSRC, "PWRSRC"),
37 };
38 
39 static struct resource adc_resources[] = {
40 	DEFINE_RES_IRQ_NAMED(CRYSTAL_COVE_IRQ_ADC, "ADC"),
41 };
42 
43 static struct resource thermal_resources[] = {
44 	DEFINE_RES_IRQ_NAMED(CRYSTAL_COVE_IRQ_THRM, "THERMAL"),
45 };
46 
47 static struct resource bcu_resources[] = {
48 	DEFINE_RES_IRQ_NAMED(CRYSTAL_COVE_IRQ_BCU, "BCU"),
49 };
50 
51 static struct mfd_cell crystal_cove_byt_dev[] = {
52 	{
53 		.name = "crystal_cove_pwrsrc",
54 		.num_resources = ARRAY_SIZE(pwrsrc_resources),
55 		.resources = pwrsrc_resources,
56 	},
57 	{
58 		.name = "crystal_cove_adc",
59 		.num_resources = ARRAY_SIZE(adc_resources),
60 		.resources = adc_resources,
61 	},
62 	{
63 		.name = "crystal_cove_thermal",
64 		.num_resources = ARRAY_SIZE(thermal_resources),
65 		.resources = thermal_resources,
66 	},
67 	{
68 		.name = "crystal_cove_bcu",
69 		.num_resources = ARRAY_SIZE(bcu_resources),
70 		.resources = bcu_resources,
71 	},
72 	{
73 		.name = "crystal_cove_gpio",
74 		.num_resources = ARRAY_SIZE(gpio_resources),
75 		.resources = gpio_resources,
76 	},
77 	{
78 		.name = "byt_crystal_cove_pmic",
79 	},
80 	{
81 		.name = "crystal_cove_pwm",
82 	},
83 };
84 
85 static struct mfd_cell crystal_cove_cht_dev[] = {
86 	{
87 		.name = "crystal_cove_gpio",
88 		.num_resources = ARRAY_SIZE(gpio_resources),
89 		.resources = gpio_resources,
90 	},
91 	{
92 		.name = "cht_crystal_cove_pmic",
93 	},
94 	{
95 		.name = "crystal_cove_pwm",
96 	},
97 };
98 
99 static const struct regmap_config crystal_cove_regmap_config = {
100 	.reg_bits = 8,
101 	.val_bits = 8,
102 
103 	.max_register = CRYSTAL_COVE_MAX_REGISTER,
104 	.cache_type = REGCACHE_NONE,
105 };
106 
107 static const struct regmap_irq crystal_cove_irqs[] = {
108 	REGMAP_IRQ_REG(CRYSTAL_COVE_IRQ_PWRSRC, 0, BIT(CRYSTAL_COVE_IRQ_PWRSRC)),
109 	REGMAP_IRQ_REG(CRYSTAL_COVE_IRQ_THRM, 0, BIT(CRYSTAL_COVE_IRQ_THRM)),
110 	REGMAP_IRQ_REG(CRYSTAL_COVE_IRQ_BCU, 0, BIT(CRYSTAL_COVE_IRQ_BCU)),
111 	REGMAP_IRQ_REG(CRYSTAL_COVE_IRQ_ADC, 0, BIT(CRYSTAL_COVE_IRQ_ADC)),
112 	REGMAP_IRQ_REG(CRYSTAL_COVE_IRQ_CHGR, 0, BIT(CRYSTAL_COVE_IRQ_CHGR)),
113 	REGMAP_IRQ_REG(CRYSTAL_COVE_IRQ_GPIO, 0, BIT(CRYSTAL_COVE_IRQ_GPIO)),
114 	REGMAP_IRQ_REG(CRYSTAL_COVE_IRQ_VHDMIOCP, 0, BIT(CRYSTAL_COVE_IRQ_VHDMIOCP)),
115 };
116 
117 static const struct regmap_irq_chip crystal_cove_irq_chip = {
118 	.name = "Crystal Cove",
119 	.irqs = crystal_cove_irqs,
120 	.num_irqs = ARRAY_SIZE(crystal_cove_irqs),
121 	.num_regs = 1,
122 	.status_base = CRYSTAL_COVE_REG_IRQLVL1,
123 	.mask_base = CRYSTAL_COVE_REG_MIRQLVL1,
124 };
125 
126 struct intel_soc_pmic_config intel_soc_pmic_config_byt_crc = {
127 	.irq_flags = IRQF_TRIGGER_RISING,
128 	.cell_dev = crystal_cove_byt_dev,
129 	.n_cell_devs = ARRAY_SIZE(crystal_cove_byt_dev),
130 	.regmap_config = &crystal_cove_regmap_config,
131 	.irq_chip = &crystal_cove_irq_chip,
132 };
133 
134 struct intel_soc_pmic_config intel_soc_pmic_config_cht_crc = {
135 	.irq_flags = IRQF_TRIGGER_RISING,
136 	.cell_dev = crystal_cove_cht_dev,
137 	.n_cell_devs = ARRAY_SIZE(crystal_cove_cht_dev),
138 	.regmap_config = &crystal_cove_regmap_config,
139 	.irq_chip = &crystal_cove_irq_chip,
140 };
141