1// SPDX-License-Identifier: GPL-2.0
  2/*
  3 * TI TPS68470 PMIC platform data definition.
  4 *
  5 * Copyright (c) 2021 Dan Scally <djrscally@gmail.com>
  6 * Copyright (c) 2021 Red Hat Inc.
  7 *
  8 * Red Hat authors:
  9 * Hans de Goede <hdegoede@redhat.com>
 10 */
 11
 12#include <linux/dmi.h>
 13#include <linux/gpio/machine.h>
 14#include <linux/platform_data/tps68470.h>
 15#include <linux/regulator/machine.h>
 16#include "tps68470.h"
 17
 18static struct regulator_consumer_supply int347a_core_consumer_supplies[] = {
 19	REGULATOR_SUPPLY("dvdd", "i2c-INT347A:00"),
 20};
 21
 22static struct regulator_consumer_supply int347a_ana_consumer_supplies[] = {
 23	REGULATOR_SUPPLY("avdd", "i2c-INT347A:00"),
 24};
 25
 26static struct regulator_consumer_supply int347a_vcm_consumer_supplies[] = {
 27	REGULATOR_SUPPLY("vdd", "i2c-INT347A:00-VCM"),
 28};
 29
 30static struct regulator_consumer_supply int347a_vsio_consumer_supplies[] = {
 31	REGULATOR_SUPPLY("dovdd", "i2c-INT347A:00"),
 32	REGULATOR_SUPPLY("vsio", "i2c-INT347A:00-VCM"),
 33	REGULATOR_SUPPLY("vddd", "i2c-INT347E:00"),
 34};
 35
 36static struct regulator_consumer_supply int347a_aux1_consumer_supplies[] = {
 37	REGULATOR_SUPPLY("vdda", "i2c-INT347E:00"),
 38};
 39
 40static struct regulator_consumer_supply int347a_aux2_consumer_supplies[] = {
 41	REGULATOR_SUPPLY("vdddo", "i2c-INT347E:00"),
 42};
 43
 44static const struct regulator_init_data surface_go_tps68470_core_reg_init_data = {
 45	.constraints = {
 46		.min_uV = 1200000,
 47		.max_uV = 1200000,
 48		.apply_uV = true,
 49		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
 50	},
 51	.num_consumer_supplies = ARRAY_SIZE(int347a_core_consumer_supplies),
 52	.consumer_supplies = int347a_core_consumer_supplies,
 53};
 54
 55static const struct regulator_init_data surface_go_tps68470_ana_reg_init_data = {
 56	.constraints = {
 57		.min_uV = 2815200,
 58		.max_uV = 2815200,
 59		.apply_uV = true,
 60		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
 61	},
 62	.num_consumer_supplies = ARRAY_SIZE(int347a_ana_consumer_supplies),
 63	.consumer_supplies = int347a_ana_consumer_supplies,
 64};
 65
 66static const struct regulator_init_data surface_go_tps68470_vcm_reg_init_data = {
 67	.constraints = {
 68		.min_uV = 2815200,
 69		.max_uV = 2815200,
 70		.apply_uV = true,
 71		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
 72	},
 73	.num_consumer_supplies = ARRAY_SIZE(int347a_vcm_consumer_supplies),
 74	.consumer_supplies = int347a_vcm_consumer_supplies,
 75};
 76
 77/* Ensure the always-on VIO regulator has the same voltage as VSIO */
 78static const struct regulator_init_data surface_go_tps68470_vio_reg_init_data = {
 79	.constraints = {
 80		.min_uV = 1800600,
 81		.max_uV = 1800600,
 82		.apply_uV = true,
 83		.always_on = true,
 84	},
 85};
 86
 87static const struct regulator_init_data surface_go_tps68470_vsio_reg_init_data = {
 88	.constraints = {
 89		.min_uV = 1800600,
 90		.max_uV = 1800600,
 91		.apply_uV = true,
 92		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
 93	},
 94	.num_consumer_supplies = ARRAY_SIZE(int347a_vsio_consumer_supplies),
 95	.consumer_supplies = int347a_vsio_consumer_supplies,
 96};
 97
 98static const struct regulator_init_data surface_go_tps68470_aux1_reg_init_data = {
 99	.constraints = {
100		.min_uV = 2815200,
101		.max_uV = 2815200,
102		.apply_uV = 1,
103		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
104	},
105	.num_consumer_supplies = ARRAY_SIZE(int347a_aux1_consumer_supplies),
106	.consumer_supplies = int347a_aux1_consumer_supplies,
107};
108
109static const struct regulator_init_data surface_go_tps68470_aux2_reg_init_data = {
110	.constraints = {
111		.min_uV = 1800600,
112		.max_uV = 1800600,
113		.apply_uV = 1,
114		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
115	},
116	.num_consumer_supplies = ARRAY_SIZE(int347a_aux2_consumer_supplies),
117	.consumer_supplies = int347a_aux2_consumer_supplies,
118};
119
120static const struct tps68470_regulator_platform_data surface_go_tps68470_pdata = {
121	.reg_init_data = {
122		[TPS68470_CORE] = &surface_go_tps68470_core_reg_init_data,
123		[TPS68470_ANA]  = &surface_go_tps68470_ana_reg_init_data,
124		[TPS68470_VCM]  = &surface_go_tps68470_vcm_reg_init_data,
125		[TPS68470_VIO] = &surface_go_tps68470_vio_reg_init_data,
126		[TPS68470_VSIO] = &surface_go_tps68470_vsio_reg_init_data,
127		[TPS68470_AUX1] = &surface_go_tps68470_aux1_reg_init_data,
128		[TPS68470_AUX2] = &surface_go_tps68470_aux2_reg_init_data,
129	},
130};
131
132static struct gpiod_lookup_table surface_go_int347a_gpios = {
133	.dev_id = "i2c-INT347A:00",
134	.table = {
135		GPIO_LOOKUP("tps68470-gpio", 9, "reset", GPIO_ACTIVE_LOW),
136		GPIO_LOOKUP("tps68470-gpio", 7, "powerdown", GPIO_ACTIVE_LOW),
137		{ }
138	}
139};
140
141static struct gpiod_lookup_table surface_go_int347e_gpios = {
142	.dev_id = "i2c-INT347E:00",
143	.table = {
144		GPIO_LOOKUP("tps68470-gpio", 5, "enable", GPIO_ACTIVE_HIGH),
145		{ }
146	}
147};
148
149static const struct int3472_tps68470_board_data surface_go_tps68470_board_data = {
150	.dev_name = "i2c-INT3472:05",
151	.tps68470_regulator_pdata = &surface_go_tps68470_pdata,
152	.n_gpiod_lookups = 2,
153	.tps68470_gpio_lookup_tables = {
154		&surface_go_int347a_gpios,
155		&surface_go_int347e_gpios,
156	},
157};
158
159static const struct int3472_tps68470_board_data surface_go3_tps68470_board_data = {
160	.dev_name = "i2c-INT3472:01",
161	.tps68470_regulator_pdata = &surface_go_tps68470_pdata,
162	.n_gpiod_lookups = 1,
163	.tps68470_gpio_lookup_tables = {
164		&surface_go_int347a_gpios
165	},
166};
167
168static const struct dmi_system_id int3472_tps68470_board_data_table[] = {
169	{
170		.matches = {
171			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
172			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Go"),
173		},
174		.driver_data = (void *)&surface_go_tps68470_board_data,
175	},
176	{
177		.matches = {
178			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
179			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Go 2"),
180		},
181		.driver_data = (void *)&surface_go_tps68470_board_data,
182	},
183	{
184		.matches = {
185			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
186			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Go 3"),
187		},
188		.driver_data = (void *)&surface_go3_tps68470_board_data,
189	},
190	{ }
191};
192
193const struct int3472_tps68470_board_data *int3472_tps68470_get_board_data(const char *dev_name)
194{
195	const struct int3472_tps68470_board_data *board_data;
196	const struct dmi_system_id *match;
197
198	for (match = dmi_first_match(int3472_tps68470_board_data_table);
199	     match;
200	     match = dmi_first_match(match + 1)) {
201		board_data = match->driver_data;
202		if (strcmp(board_data->dev_name, dev_name) == 0)
203			return board_data;
204	}
205
206	return NULL;
207}