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
|
/* SPDX-License-Identifier: GPL-2.0-only */
#include <acpi/acpi_device.h>
#include <acpi/acpigen.h>
#include <console/console.h>
#include <device/device.h>
#include "chip.h"
#define RT5645_ACPI_NAME "RT58"
#define RT5645_ACPI_HID "10EC5650"
#define RT5645_DP_INT(key, val) \
acpi_dp_add_integer(dp, "realtek," key, (val))
static void rt5645_fill_ssdt(const struct device *dev)
{
struct drivers_i2c_rt5645_config *config = dev->chip_info;
const char *path;
const char *scope = acpi_device_scope(dev);
int cbj_sleeve_index = -1, irq_gpio_index = -1, hp_detect_index = -1;
struct acpi_i2c i2c = {
.address = dev->path.i2c.device,
.mode_10bit = dev->path.i2c.mode_10bit,
.speed = config->bus_speed ? : I2C_SPEED_FAST,
.resource = scope,
};
struct acpi_dp *dp;
int curr_index = 0;
if (!config)
return;
const char *name = acpi_device_name(dev);
if (!scope || !name)
return;
/* Device */
acpigen_write_scope(scope);
acpigen_write_device(name);
if (config->hid)
acpigen_write_name_string("_HID", config->hid);
else
acpigen_write_name_string("_HID", RT5645_ACPI_HID);
acpigen_write_name_integer("_UID", 0);
if (config->desc)
acpigen_write_name_string("_DDN", config->desc);
/* Hide the device because of Microsoft Windows */
acpigen_write_STA(ACPI_STATUS_DEVICE_HIDDEN_ON);
/* Resources */
acpigen_write_name("_CRS");
acpigen_write_resourcetemplate_header();
acpi_device_write_i2c(&i2c);
/* Use either Interrupt() or GpioInt() */
if (config->irq_gpio.pin_count)
irq_gpio_index = acpi_device_write_dsd_gpio(&config->irq_gpio,
&curr_index);
else
acpi_device_write_interrupt(&config->irq);
/* Add I2C GPIO index */
cbj_sleeve_index = acpi_device_write_dsd_gpio(&config->cbj_sleeve,
&curr_index);
hp_detect_index = acpi_device_write_dsd_gpio(&config->hp_detect,
&curr_index);
acpigen_write_resourcetemplate_footer();
/* _DSD for devicetree properties */
/* This points to the first pin in the first gpio entry in _CRS */
path = acpi_device_path(dev);
dp = acpi_dp_new_table("_DSD");
if (config->irq_gpio.pin_count)
acpi_dp_add_gpio(dp, "irq-gpios", path, irq_gpio_index, 0,
config->irq_gpio.active_low);
if (config->cbj_sleeve.pin_count)
acpi_dp_add_gpio(dp, "cbj-sleeve-gpios", path, cbj_sleeve_index, 0,
config->cbj_sleeve.active_low);
if (config->hp_detect.pin_count)
acpi_dp_add_gpio(dp, "hp-detect-gpios", path, hp_detect_index, 0,
config->hp_detect.active_low);
RT5645_DP_INT("jd-mode", config->jd_mode);
acpi_dp_write(dp);
acpigen_pop_len(); /* Device */
acpigen_pop_len(); /* Scope */
printk(BIOS_INFO, "%s: %s address 0%xh\n", path,
config->desc ? : dev->chip_ops->name, dev->path.i2c.device);
}
static const char *rt5645_acpi_name(const struct device *dev)
{
struct drivers_i2c_rt5645_config *config = dev->chip_info;
static char name[5];
if (config->name)
return config->name;
snprintf(name, sizeof(name), "D%03.3X", dev->path.i2c.device);
return name;
}
static struct device_operations rt5645_ops = {
.read_resources = noop_read_resources,
.set_resources = noop_set_resources,
.acpi_name = rt5645_acpi_name,
.acpi_fill_ssdt = rt5645_fill_ssdt,
};
static void rt5645_enable(struct device *dev)
{
dev->ops = &rt5645_ops;
}
struct chip_operations drivers_i2c_rt5645_ops = {
.name = "ASoC RT5645 Codec driver",
.enable_dev = rt5645_enable
};
|
