d1c0f958d1
Individual drivers check whether the concerned device is enabled before filling in the SSDT. Move the check before calling acpi_fill_ssdt() and remove the check in the individual drivers. BUG=None TEST=util/abuild/abuild Change-Id: Ib042bec7e8c68b38fafa60a8e965d781bddcd1f0 Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/47148 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Christian Walter <christian.walter@9elements.com>
100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <acpi/acpigen.h>
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#include <acpi/acpi_device.h>
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#include <acpi/acpi_soundwire.h>
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#include <commonlib/helpers.h>
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#include <device/device.h>
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#include <device/path.h>
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#include <device/soundwire.h>
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#include <stdbool.h>
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#include "soundwire.h"
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#include "chip.h"
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__weak int soc_fill_soundwire_controller(struct intel_soundwire_controller **controller)
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{
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return -1;
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}
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static bool link_enabled(const struct device *dev, unsigned int link)
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{
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struct device *child;
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for (child = dev->link_list->children; child; child = child->sibling) {
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if (child->enabled && child->path.type == DEVICE_PATH_GENERIC &&
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child->path.generic.id == link)
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return true;
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}
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return false;
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}
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static void intel_soundwire_link_prop_cb(struct acpi_dp *dsd, unsigned int id,
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const struct soundwire_controller *controller)
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{
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struct intel_soundwire_controller *intel_controller =
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container_of(controller, struct intel_soundwire_controller, sdw);
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unsigned int quirk_mask = intel_controller->quirk_mask;
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/* Disable link if no are children enabled on this link device. */
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if (!link_enabled(intel_controller->dev, id))
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quirk_mask |= INTEL_SOUNDWIRE_QUIRK_BUS_DISABLE;
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acpi_dp_add_integer(dsd, "intel-sdw-ip-clock", intel_controller->ip_clock);
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acpi_dp_add_integer(dsd, "intel-quirk-mask", quirk_mask);
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}
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static void intel_soundwire_fill_ssdt(const struct device *dev)
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{
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struct acpi_dp *dsd;
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struct intel_soundwire_controller *controller;
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const char *scope = acpi_device_scope(dev);
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if (!scope)
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return;
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if (soc_fill_soundwire_controller(&controller) < 0 || !controller)
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return;
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/* Provide device pointer for link property callback function. */
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controller->dev = dev;
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acpigen_write_scope(scope);
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acpigen_write_device(acpi_device_name(dev));
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acpigen_write_name_string("_DDN", dev->chip_ops->name);
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acpigen_write_name_integer("_ADR", controller->acpi_address);
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acpigen_write_name_string("_CID", ACPI_HID_CONTAINER);
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acpigen_write_STA(acpi_device_status(dev));
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dsd = acpi_dp_new_table("_DSD");
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soundwire_gen_controller(dsd, &controller->sdw, &intel_soundwire_link_prop_cb);
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acpi_dp_write(dsd);
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acpigen_pop_len(); /* Device */
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acpigen_pop_len(); /* Scope */
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}
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static const char *intel_soundwire_acpi_name(const struct device *dev)
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{
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return "SNDW";
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}
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static struct device_operations intel_soundwire_ops = {
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.read_resources = noop_read_resources,
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.set_resources = noop_set_resources,
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.acpi_name = intel_soundwire_acpi_name,
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.acpi_fill_ssdt = intel_soundwire_fill_ssdt,
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.scan_bus = scan_static_bus,
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};
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static void intel_soundwire_enable(struct device *dev)
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{
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dev->ops = &intel_soundwire_ops;
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}
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struct chip_operations drivers_intel_soundwire_ops = {
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CHIP_NAME("Intel SoundWire Controller")
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.enable_dev = intel_soundwire_enable
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};
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