1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
// SPDX-License-Identifier: GPL-2.0
/*
* Dollar Cove TI PMIC operation region driver
* Copyright (C) 2014 Intel Corporation. All rights reserved.
*
* Rewritten and cleaned up
* Copyright (C) 2017 Takashi Iwai <tiwai@suse.de>
*/
#include <linux/acpi.h>
#include <linux/init.h>
#include <linux/mfd/intel_soc_pmic.h>
#include <linux/platform_device.h>
#include "intel_pmic.h"
/* registers stored in 16bit BE (high:low, total 10bit) */
#define CHTDC_TI_VBAT 0x54
#define CHTDC_TI_DIETEMP 0x56
#define CHTDC_TI_BPTHERM 0x58
#define CHTDC_TI_GPADC 0x5a
static struct pmic_table chtdc_ti_power_table[] = {
{ .address = 0x00, .reg = 0x41 },
{ .address = 0x04, .reg = 0x42 },
{ .address = 0x08, .reg = 0x43 },
{ .address = 0x0c, .reg = 0x45 },
{ .address = 0x10, .reg = 0x46 },
{ .address = 0x14, .reg = 0x47 },
{ .address = 0x18, .reg = 0x48 },
{ .address = 0x1c, .reg = 0x49 },
{ .address = 0x20, .reg = 0x4a },
{ .address = 0x24, .reg = 0x4b },
{ .address = 0x28, .reg = 0x4c },
{ .address = 0x2c, .reg = 0x4d },
{ .address = 0x30, .reg = 0x4e },
};
static struct pmic_table chtdc_ti_thermal_table[] = {
{
.address = 0x00,
.reg = CHTDC_TI_GPADC
},
{
.address = 0x0c,
.reg = CHTDC_TI_GPADC
},
/* TMP2 -> SYSTEMP */
{
.address = 0x18,
.reg = CHTDC_TI_GPADC
},
/* TMP3 -> BPTHERM */
{
.address = 0x24,
.reg = CHTDC_TI_BPTHERM
},
{
.address = 0x30,
.reg = CHTDC_TI_GPADC
},
/* TMP5 -> DIETEMP */
{
.address = 0x3c,
.reg = CHTDC_TI_DIETEMP
},
};
static int chtdc_ti_pmic_get_power(struct regmap *regmap, int reg, int bit,
u64 *value)
{
int data;
if (regmap_read(regmap, reg, &data))
return -EIO;
*value = data & 1;
return 0;
}
static int chtdc_ti_pmic_update_power(struct regmap *regmap, int reg, int bit,
bool on)
{
return regmap_update_bits(regmap, reg, 1, on);
}
static int chtdc_ti_pmic_get_raw_temp(struct regmap *regmap, int reg)
{
u8 buf[2];
if (regmap_bulk_read(regmap, reg, buf, 2))
return -EIO;
/* stored in big-endian */
return ((buf[0] & 0x03) << 8) | buf[1];
}
static struct intel_pmic_opregion_data chtdc_ti_pmic_opregion_data = {
.get_power = chtdc_ti_pmic_get_power,
.update_power = chtdc_ti_pmic_update_power,
.get_raw_temp = chtdc_ti_pmic_get_raw_temp,
.power_table = chtdc_ti_power_table,
.power_table_count = ARRAY_SIZE(chtdc_ti_power_table),
.thermal_table = chtdc_ti_thermal_table,
.thermal_table_count = ARRAY_SIZE(chtdc_ti_thermal_table),
};
static int chtdc_ti_pmic_opregion_probe(struct platform_device *pdev)
{
struct intel_soc_pmic *pmic = dev_get_drvdata(pdev->dev.parent);
int err;
err = intel_pmic_install_opregion_handler(&pdev->dev,
ACPI_HANDLE(pdev->dev.parent), pmic->regmap,
&chtdc_ti_pmic_opregion_data);
if (err < 0)
return err;
/* Re-enumerate devices depending on PMIC */
acpi_walk_dep_device_list(ACPI_HANDLE(pdev->dev.parent));
return 0;
}
static const struct platform_device_id chtdc_ti_pmic_opregion_id_table[] = {
{ .name = "chtdc_ti_region" },
{},
};
static struct platform_driver chtdc_ti_pmic_opregion_driver = {
.probe = chtdc_ti_pmic_opregion_probe,
.driver = {
.name = "cht_dollar_cove_ti_pmic",
},
.id_table = chtdc_ti_pmic_opregion_id_table,
};
builtin_platform_driver(chtdc_ti_pmic_opregion_driver);
|
