soc/intel/alderlake: Add ADL-P 4+4 with 28W TDP
[coreboot.git] / src / drivers / intel / soundwire / soundwire.c
blobc7e84a5339830636956bd28d574966440954d4d4
1 /* SPDX-License-Identifier: GPL-2.0-only */
3 #include <acpi/acpigen.h>
4 #include <acpi/acpi_device.h>
5 #include <acpi/acpi_soundwire.h>
6 #include <commonlib/helpers.h>
7 #include <device/device.h>
8 #include <device/path.h>
9 #include <device/soundwire.h>
10 #include <stdbool.h>
12 #include "soundwire.h"
13 #include "chip.h"
15 __weak int soc_fill_soundwire_controller(struct intel_soundwire_controller **controller)
17 return -1;
20 static bool link_enabled(const struct device *dev, unsigned int link)
22 struct device *child;
24 for (child = dev->link_list->children; child; child = child->sibling) {
25 if (child->enabled && child->path.type == DEVICE_PATH_GENERIC &&
26 child->path.generic.id == link)
27 return true;
29 return false;
32 static void intel_soundwire_link_prop_cb(struct acpi_dp *dsd, unsigned int id,
33 const struct soundwire_controller *controller)
35 struct intel_soundwire_controller *intel_controller =
36 container_of(controller, struct intel_soundwire_controller, sdw);
37 unsigned int quirk_mask = intel_controller->quirk_mask;
39 /* Disable link if no are children enabled on this link device. */
40 if (!link_enabled(intel_controller->dev, id))
41 quirk_mask |= INTEL_SOUNDWIRE_QUIRK_BUS_DISABLE;
43 acpi_dp_add_integer(dsd, "intel-sdw-ip-clock", intel_controller->ip_clock);
44 acpi_dp_add_integer(dsd, "intel-quirk-mask", quirk_mask);
47 static void intel_soundwire_fill_ssdt(const struct device *dev)
49 struct acpi_dp *dsd;
50 struct intel_soundwire_controller *controller;
51 const char *scope = acpi_device_scope(dev);
53 if (!scope)
54 return;
56 if (soc_fill_soundwire_controller(&controller) < 0 || !controller)
57 return;
59 /* Provide device pointer for link property callback function. */
60 controller->dev = dev;
62 acpigen_write_scope(scope);
63 acpigen_write_device(acpi_device_name(dev));
64 acpigen_write_name_string("_DDN", dev->chip_ops->name);
65 acpigen_write_name_integer("_ADR", controller->acpi_address);
66 acpigen_write_name_string("_CID", ACPI_HID_CONTAINER);
68 acpigen_write_STA(acpi_device_status(dev));
70 dsd = acpi_dp_new_table("_DSD");
71 soundwire_gen_controller(dsd, &controller->sdw, &intel_soundwire_link_prop_cb);
72 acpi_dp_write(dsd);
74 acpigen_pop_len(); /* Device */
75 acpigen_pop_len(); /* Scope */
78 static const char *intel_soundwire_acpi_name(const struct device *dev)
80 return "SNDW";
83 static struct device_operations intel_soundwire_ops = {
84 .read_resources = noop_read_resources,
85 .set_resources = noop_set_resources,
86 .acpi_name = intel_soundwire_acpi_name,
87 .acpi_fill_ssdt = intel_soundwire_fill_ssdt,
88 .scan_bus = scan_static_bus,
91 static void intel_soundwire_enable(struct device *dev)
93 dev->ops = &intel_soundwire_ops;
96 struct chip_operations drivers_intel_soundwire_ops = {
97 CHIP_NAME("Intel SoundWire Controller")
98 .enable_dev = intel_soundwire_enable