1 // SPDX-License-Identifier: GPL-2.0
3 * Dollar Cove TI PMIC operation region driver
4 * Copyright (C) 2014 Intel Corporation. All rights reserved.
6 * Rewritten and cleaned up
7 * Copyright (C) 2017 Takashi Iwai <tiwai@suse.de>
10 #include <linux/acpi.h>
11 #include <linux/init.h>
12 #include <linux/mfd/intel_soc_pmic.h>
13 #include <linux/platform_device.h>
14 #include "intel_pmic.h"
16 /* registers stored in 16bit BE (high:low, total 10bit) */
17 #define CHTDC_TI_VBAT 0x54
18 #define CHTDC_TI_DIETEMP 0x56
19 #define CHTDC_TI_BPTHERM 0x58
20 #define CHTDC_TI_GPADC 0x5a
22 static struct pmic_table chtdc_ti_power_table
[] = {
23 { .address
= 0x00, .reg
= 0x41 },
24 { .address
= 0x04, .reg
= 0x42 },
25 { .address
= 0x08, .reg
= 0x43 },
26 { .address
= 0x0c, .reg
= 0x45 },
27 { .address
= 0x10, .reg
= 0x46 },
28 { .address
= 0x14, .reg
= 0x47 },
29 { .address
= 0x18, .reg
= 0x48 },
30 { .address
= 0x1c, .reg
= 0x49 },
31 { .address
= 0x20, .reg
= 0x4a },
32 { .address
= 0x24, .reg
= 0x4b },
33 { .address
= 0x28, .reg
= 0x4c },
34 { .address
= 0x2c, .reg
= 0x4d },
35 { .address
= 0x30, .reg
= 0x4e },
38 static struct pmic_table chtdc_ti_thermal_table
[] = {
55 .reg
= CHTDC_TI_BPTHERM
64 .reg
= CHTDC_TI_DIETEMP
68 static int chtdc_ti_pmic_get_power(struct regmap
*regmap
, int reg
, int bit
,
73 if (regmap_read(regmap
, reg
, &data
))
80 static int chtdc_ti_pmic_update_power(struct regmap
*regmap
, int reg
, int bit
,
83 return regmap_update_bits(regmap
, reg
, 1, on
);
86 static int chtdc_ti_pmic_get_raw_temp(struct regmap
*regmap
, int reg
)
90 if (regmap_bulk_read(regmap
, reg
, buf
, 2))
93 /* stored in big-endian */
94 return ((buf
[0] & 0x03) << 8) | buf
[1];
97 static struct intel_pmic_opregion_data chtdc_ti_pmic_opregion_data
= {
98 .get_power
= chtdc_ti_pmic_get_power
,
99 .update_power
= chtdc_ti_pmic_update_power
,
100 .get_raw_temp
= chtdc_ti_pmic_get_raw_temp
,
101 .power_table
= chtdc_ti_power_table
,
102 .power_table_count
= ARRAY_SIZE(chtdc_ti_power_table
),
103 .thermal_table
= chtdc_ti_thermal_table
,
104 .thermal_table_count
= ARRAY_SIZE(chtdc_ti_thermal_table
),
105 .pmic_i2c_address
= 0x5e,
108 static int chtdc_ti_pmic_opregion_probe(struct platform_device
*pdev
)
110 struct intel_soc_pmic
*pmic
= dev_get_drvdata(pdev
->dev
.parent
);
113 err
= intel_pmic_install_opregion_handler(&pdev
->dev
,
114 ACPI_HANDLE(pdev
->dev
.parent
), pmic
->regmap
,
115 &chtdc_ti_pmic_opregion_data
);
119 /* Re-enumerate devices depending on PMIC */
120 acpi_walk_dep_device_list(ACPI_HANDLE(pdev
->dev
.parent
));
124 static const struct platform_device_id chtdc_ti_pmic_opregion_id_table
[] = {
125 { .name
= "chtdc_ti_region" },
129 static struct platform_driver chtdc_ti_pmic_opregion_driver
= {
130 .probe
= chtdc_ti_pmic_opregion_probe
,
132 .name
= "cht_dollar_cove_ti_pmic",
134 .id_table
= chtdc_ti_pmic_opregion_id_table
,
136 builtin_platform_driver(chtdc_ti_pmic_opregion_driver
);