1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 #include <acpi/acpi_device.h>
4 #include <acpi/acpigen.h>
5 #include <console/console.h>
6 #include <device/i2c.h>
7 #include <device/device.h>
8 #include <stdint.h>
9 #include <stdio.h>
10 #include <vendorcode/google/dsm_calib.h>
11 #include "chip.h"
12
13 #define RT1011_ACPI_HID "10EC1011"
14
15 #define RT1011_DP_INT(key, val) acpi_dp_add_integer(dp, "realtek," key, (val))
16
rt1011_fill_ssdt(const struct device * dev)17 static void rt1011_fill_ssdt(const struct device *dev)
18 {
19 struct drivers_i2c_rt1011_config *config = dev->chip_info;
20 const char *scope = acpi_device_scope(dev);
21 struct acpi_i2c i2c = {
22 .address = dev->path.i2c.device,
23 .mode_10bit = dev->path.i2c.mode_10bit,
24 .speed = I2C_SPEED_FAST,
25 .resource = scope,
26 };
27 struct acpi_dp *dp;
28 uint64_t r0_value, temp_value;
29
30 if (!scope)
31 return;
32
33 /* Device */
34 acpigen_write_scope(scope);
35 acpigen_write_device(acpi_device_name(dev));
36 acpigen_write_name_string("_HID", RT1011_ACPI_HID);
37 acpigen_write_name_integer("_UID", config->uid);
38 acpigen_write_name_string("_DDN", config->desc);
39 acpigen_write_STA(acpi_device_status(dev));
40
41 /* Resources */
42 acpigen_write_name("_CRS");
43 acpigen_write_resourcetemplate_header();
44 acpi_device_write_i2c(&i2c);
45 acpigen_write_resourcetemplate_footer();
46
47 /* Device Properties */
48 if (CONFIG(GOOGLE_DSM_CALIB)) {
49 if (get_dsm_calibration_from_key(config->r0_calib_key, &r0_value)
50 || get_dsm_calibration_from_key(config->temperature_calib_key,
51 &temp_value)) {
52 printk(BIOS_ERR,
53 "Failed to get dsm_calib parameters from VPD"
54 " with key %s and %s\n",
55 config->r0_calib_key, config->temperature_calib_key);
56 } else {
57 dp = acpi_dp_new_table("_DSD");
58 RT1011_DP_INT("r0_calib", r0_value);
59 RT1011_DP_INT("temperature_calib", temp_value);
60 acpi_dp_write(dp);
61 printk(BIOS_INFO, "set dsm_calib properties\n");
62 }
63 }
64
65 acpigen_pop_len(); /* Device */
66 acpigen_pop_len(); /* Scope */
67
68 printk(BIOS_INFO, "%s: %s address 0%xh\n", acpi_device_path(dev), dev->chip_ops->name,
69 dev->path.i2c.device);
70 }
71
rt1011_acpi_name(const struct device * dev)72 static const char *rt1011_acpi_name(const struct device *dev)
73 {
74 struct drivers_i2c_rt1011_config *config = dev->chip_info;
75 static char name[5];
76
77 if (config->name)
78 return config->name;
79
80 snprintf(name, sizeof(name), "D%03.3X", dev->path.i2c.device);
81 return name;
82 }
83
84 static struct device_operations rt1011_ops = {
85 .read_resources = noop_read_resources,
86 .set_resources = noop_set_resources,
87 .acpi_name = rt1011_acpi_name,
88 .acpi_fill_ssdt = rt1011_fill_ssdt,
89 };
90
rt1011_enable(struct device * dev)91 static void rt1011_enable(struct device *dev)
92 {
93 struct drivers_i2c_rt1011_config *config = dev->chip_info;
94
95 if (!config)
96 return;
97
98 dev->ops = &rt1011_ops;
99
100 /* Name the device as per description provided in devicetree */
101 if (config->desc)
102 dev->name = config->desc;
103 }
104
105 struct chip_operations drivers_i2c_rt1011_ops = {
106 .name = "Realtek RT1011 Codec",
107 .enable_dev = rt1011_enable
108 };
109