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-rw-r--r--drivers/acpi/x86/apple.c148
-rw-r--r--drivers/acpi/x86/s2idle.c669
-rw-r--r--drivers/acpi/x86/utils.c555
3 files changed, 1372 insertions, 0 deletions
diff --git a/drivers/acpi/x86/apple.c b/drivers/acpi/x86/apple.c
new file mode 100644
index 0000000000..45d0f16f37
--- /dev/null
+++ b/drivers/acpi/x86/apple.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * apple.c - Apple ACPI quirks
+ * Copyright (C) 2017 Lukas Wunner <lukas@wunner.de>
+ */
+
+#include <linux/acpi.h>
+#include <linux/bitmap.h>
+#include <linux/platform_data/x86/apple.h>
+#include <linux/uuid.h>
+#include "../internal.h"
+
+/* Apple _DSM device properties GUID */
+static const guid_t apple_prp_guid =
+ GUID_INIT(0xa0b5b7c6, 0x1318, 0x441c,
+ 0xb0, 0xc9, 0xfe, 0x69, 0x5e, 0xaf, 0x94, 0x9b);
+
+/**
+ * acpi_extract_apple_properties - retrieve and convert Apple _DSM properties
+ * @adev: ACPI device for which to retrieve the properties
+ *
+ * Invoke Apple's custom _DSM once to check the protocol version and once more
+ * to retrieve the properties. They are marshalled up in a single package as
+ * alternating key/value elements, unlike _DSD which stores them as a package
+ * of 2-element packages. Convert to _DSD format and make them available under
+ * the primary fwnode.
+ */
+void acpi_extract_apple_properties(struct acpi_device *adev)
+{
+ unsigned int i, j = 0, newsize = 0, numprops, numvalid;
+ union acpi_object *props, *newprops;
+ unsigned long *valid = NULL;
+ void *free_space;
+
+ if (!x86_apple_machine)
+ return;
+
+ props = acpi_evaluate_dsm_typed(adev->handle, &apple_prp_guid, 1, 0,
+ NULL, ACPI_TYPE_BUFFER);
+ if (!props)
+ return;
+
+ if (!props->buffer.length)
+ goto out_free;
+
+ if (props->buffer.pointer[0] != 3) {
+ acpi_handle_info(adev->handle, FW_INFO
+ "unsupported properties version %*ph\n",
+ props->buffer.length, props->buffer.pointer);
+ goto out_free;
+ }
+
+ ACPI_FREE(props);
+ props = acpi_evaluate_dsm_typed(adev->handle, &apple_prp_guid, 1, 1,
+ NULL, ACPI_TYPE_PACKAGE);
+ if (!props)
+ return;
+
+ numprops = props->package.count / 2;
+ if (!numprops)
+ goto out_free;
+
+ valid = bitmap_zalloc(numprops, GFP_KERNEL);
+ if (!valid)
+ goto out_free;
+
+ /* newsize = key length + value length of each tuple */
+ for (i = 0; i < numprops; i++) {
+ union acpi_object *key = &props->package.elements[i * 2];
+ union acpi_object *val = &props->package.elements[i * 2 + 1];
+
+ if ( key->type != ACPI_TYPE_STRING ||
+ (val->type != ACPI_TYPE_INTEGER &&
+ val->type != ACPI_TYPE_BUFFER &&
+ val->type != ACPI_TYPE_STRING))
+ continue; /* skip invalid properties */
+
+ __set_bit(i, valid);
+ newsize += key->string.length + 1;
+ if ( val->type == ACPI_TYPE_BUFFER)
+ newsize += val->buffer.length;
+ else if (val->type == ACPI_TYPE_STRING)
+ newsize += val->string.length + 1;
+ }
+
+ numvalid = bitmap_weight(valid, numprops);
+ if (numprops > numvalid)
+ acpi_handle_info(adev->handle, FW_INFO
+ "skipped %u properties: wrong type\n",
+ numprops - numvalid);
+ if (numvalid == 0)
+ goto out_free;
+
+ /* newsize += top-level package + 3 objects for each key/value tuple */
+ newsize += (1 + 3 * numvalid) * sizeof(union acpi_object);
+ newprops = ACPI_ALLOCATE_ZEROED(newsize);
+ if (!newprops)
+ goto out_free;
+
+ /* layout: top-level package | packages | key/value tuples | strings */
+ newprops->type = ACPI_TYPE_PACKAGE;
+ newprops->package.count = numvalid;
+ newprops->package.elements = &newprops[1];
+ free_space = &newprops[1 + 3 * numvalid];
+
+ for_each_set_bit(i, valid, numprops) {
+ union acpi_object *key = &props->package.elements[i * 2];
+ union acpi_object *val = &props->package.elements[i * 2 + 1];
+ unsigned int k = 1 + numvalid + j * 2; /* index into newprops */
+ unsigned int v = k + 1;
+
+ newprops[1 + j].type = ACPI_TYPE_PACKAGE;
+ newprops[1 + j].package.count = 2;
+ newprops[1 + j].package.elements = &newprops[k];
+
+ newprops[k].type = ACPI_TYPE_STRING;
+ newprops[k].string.length = key->string.length;
+ newprops[k].string.pointer = free_space;
+ memcpy(free_space, key->string.pointer, key->string.length);
+ free_space += key->string.length + 1;
+
+ newprops[v].type = val->type;
+ if (val->type == ACPI_TYPE_INTEGER) {
+ newprops[v].integer.value = val->integer.value;
+ } else if (val->type == ACPI_TYPE_STRING) {
+ newprops[v].string.length = val->string.length;
+ newprops[v].string.pointer = free_space;
+ memcpy(free_space, val->string.pointer,
+ val->string.length);
+ free_space += val->string.length + 1;
+ } else {
+ newprops[v].buffer.length = val->buffer.length;
+ newprops[v].buffer.pointer = free_space;
+ memcpy(free_space, val->buffer.pointer,
+ val->buffer.length);
+ free_space += val->buffer.length;
+ }
+ j++; /* count valid properties */
+ }
+ WARN_ON(free_space != (void *)newprops + newsize);
+
+ adev->data.pointer = newprops;
+ acpi_data_add_props(&adev->data, &apple_prp_guid, newprops);
+
+out_free:
+ ACPI_FREE(props);
+ bitmap_free(valid);
+}
diff --git a/drivers/acpi/x86/s2idle.c b/drivers/acpi/x86/s2idle.c
new file mode 100644
index 0000000000..08f7c67082
--- /dev/null
+++ b/drivers/acpi/x86/s2idle.c
@@ -0,0 +1,669 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Architecture-specific ACPI-based support for suspend-to-idle.
+ *
+ * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+ * Author: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
+ * Author: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
+ *
+ * On platforms supporting the Low Power S0 Idle interface there is an ACPI
+ * device object with the PNP0D80 compatible device ID (System Power Management
+ * Controller) and a specific _DSM method under it. That method, if present,
+ * can be used to indicate to the platform that the OS is transitioning into a
+ * low-power state in which certain types of activity are not desirable or that
+ * it is leaving such a state, which allows the platform to adjust its operation
+ * mode accordingly.
+ */
+
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/dmi.h>
+#include <linux/suspend.h>
+
+#include "../sleep.h"
+
+#ifdef CONFIG_SUSPEND
+
+static bool sleep_no_lps0 __read_mostly;
+module_param(sleep_no_lps0, bool, 0644);
+MODULE_PARM_DESC(sleep_no_lps0, "Do not use the special LPS0 device interface");
+
+static const struct acpi_device_id lps0_device_ids[] = {
+ {"PNP0D80", },
+ {"", },
+};
+
+/* Microsoft platform agnostic UUID */
+#define ACPI_LPS0_DSM_UUID_MICROSOFT "11e00d56-ce64-47ce-837b-1f898f9aa461"
+
+#define ACPI_LPS0_DSM_UUID "c4eb40a0-6cd2-11e2-bcfd-0800200c9a66"
+
+#define ACPI_LPS0_GET_DEVICE_CONSTRAINTS 1
+#define ACPI_LPS0_SCREEN_OFF 3
+#define ACPI_LPS0_SCREEN_ON 4
+#define ACPI_LPS0_ENTRY 5
+#define ACPI_LPS0_EXIT 6
+#define ACPI_LPS0_MS_ENTRY 7
+#define ACPI_LPS0_MS_EXIT 8
+
+/* AMD */
+#define ACPI_LPS0_DSM_UUID_AMD "e3f32452-febc-43ce-9039-932122d37721"
+#define ACPI_LPS0_ENTRY_AMD 2
+#define ACPI_LPS0_EXIT_AMD 3
+#define ACPI_LPS0_SCREEN_OFF_AMD 4
+#define ACPI_LPS0_SCREEN_ON_AMD 5
+
+static acpi_handle lps0_device_handle;
+static guid_t lps0_dsm_guid;
+static int lps0_dsm_func_mask;
+
+static guid_t lps0_dsm_guid_microsoft;
+static int lps0_dsm_func_mask_microsoft;
+static int lps0_dsm_state;
+
+/* Device constraint entry structure */
+struct lpi_device_info {
+ char *name;
+ int enabled;
+ union acpi_object *package;
+};
+
+/* Constraint package structure */
+struct lpi_device_constraint {
+ int uid;
+ int min_dstate;
+ int function_states;
+};
+
+struct lpi_constraints {
+ acpi_handle handle;
+ int min_dstate;
+};
+
+/* AMD Constraint package structure */
+struct lpi_device_constraint_amd {
+ char *name;
+ int enabled;
+ int function_states;
+ int min_dstate;
+};
+
+static LIST_HEAD(lps0_s2idle_devops_head);
+
+static struct lpi_constraints *lpi_constraints_table;
+static int lpi_constraints_table_size;
+static int rev_id;
+
+#define for_each_lpi_constraint(entry) \
+ for (int i = 0; \
+ entry = &lpi_constraints_table[i], i < lpi_constraints_table_size; \
+ i++)
+
+static void lpi_device_get_constraints_amd(void)
+{
+ union acpi_object *out_obj;
+ int i, j, k;
+
+ out_obj = acpi_evaluate_dsm_typed(lps0_device_handle, &lps0_dsm_guid,
+ rev_id, ACPI_LPS0_GET_DEVICE_CONSTRAINTS,
+ NULL, ACPI_TYPE_PACKAGE);
+
+ acpi_handle_debug(lps0_device_handle, "_DSM function 1 eval %s\n",
+ out_obj ? "successful" : "failed");
+
+ if (!out_obj)
+ return;
+
+ for (i = 0; i < out_obj->package.count; i++) {
+ union acpi_object *package = &out_obj->package.elements[i];
+
+ if (package->type == ACPI_TYPE_PACKAGE) {
+ if (lpi_constraints_table) {
+ acpi_handle_err(lps0_device_handle,
+ "Duplicate constraints list\n");
+ goto free_acpi_buffer;
+ }
+
+ lpi_constraints_table = kcalloc(package->package.count,
+ sizeof(*lpi_constraints_table),
+ GFP_KERNEL);
+
+ if (!lpi_constraints_table)
+ goto free_acpi_buffer;
+
+ acpi_handle_debug(lps0_device_handle,
+ "LPI: constraints list begin:\n");
+
+ for (j = 0; j < package->package.count; j++) {
+ union acpi_object *info_obj = &package->package.elements[j];
+ struct lpi_device_constraint_amd dev_info = {};
+ struct lpi_constraints *list;
+ acpi_status status;
+
+ list = &lpi_constraints_table[lpi_constraints_table_size];
+
+ for (k = 0; k < info_obj->package.count; k++) {
+ union acpi_object *obj = &info_obj->package.elements[k];
+
+ switch (k) {
+ case 0:
+ dev_info.enabled = obj->integer.value;
+ break;
+ case 1:
+ dev_info.name = obj->string.pointer;
+ break;
+ case 2:
+ dev_info.function_states = obj->integer.value;
+ break;
+ case 3:
+ dev_info.min_dstate = obj->integer.value;
+ break;
+ }
+ }
+
+ acpi_handle_debug(lps0_device_handle,
+ "Name:%s, Enabled: %d, States: %d, MinDstate: %d\n",
+ dev_info.name,
+ dev_info.enabled,
+ dev_info.function_states,
+ dev_info.min_dstate);
+
+ if (!dev_info.enabled || !dev_info.name ||
+ !dev_info.min_dstate)
+ continue;
+
+ status = acpi_get_handle(NULL, dev_info.name, &list->handle);
+ if (ACPI_FAILURE(status))
+ continue;
+
+ list->min_dstate = dev_info.min_dstate;
+
+ lpi_constraints_table_size++;
+ }
+ }
+ }
+
+ acpi_handle_debug(lps0_device_handle, "LPI: constraints list end\n");
+
+free_acpi_buffer:
+ ACPI_FREE(out_obj);
+}
+
+static void lpi_device_get_constraints(void)
+{
+ union acpi_object *out_obj;
+ int i;
+
+ out_obj = acpi_evaluate_dsm_typed(lps0_device_handle, &lps0_dsm_guid,
+ 1, ACPI_LPS0_GET_DEVICE_CONSTRAINTS,
+ NULL, ACPI_TYPE_PACKAGE);
+
+ acpi_handle_debug(lps0_device_handle, "_DSM function 1 eval %s\n",
+ out_obj ? "successful" : "failed");
+
+ if (!out_obj)
+ return;
+
+ lpi_constraints_table = kcalloc(out_obj->package.count,
+ sizeof(*lpi_constraints_table),
+ GFP_KERNEL);
+ if (!lpi_constraints_table)
+ goto free_acpi_buffer;
+
+ acpi_handle_debug(lps0_device_handle, "LPI: constraints list begin:\n");
+
+ for (i = 0; i < out_obj->package.count; i++) {
+ struct lpi_constraints *constraint;
+ acpi_status status;
+ union acpi_object *package = &out_obj->package.elements[i];
+ struct lpi_device_info info = { };
+ int package_count = 0, j;
+
+ if (!package)
+ continue;
+
+ for (j = 0; j < package->package.count; j++) {
+ union acpi_object *element =
+ &(package->package.elements[j]);
+
+ switch (element->type) {
+ case ACPI_TYPE_INTEGER:
+ info.enabled = element->integer.value;
+ break;
+ case ACPI_TYPE_STRING:
+ info.name = element->string.pointer;
+ break;
+ case ACPI_TYPE_PACKAGE:
+ package_count = element->package.count;
+ info.package = element->package.elements;
+ break;
+ }
+ }
+
+ if (!info.enabled || !info.package || !info.name)
+ continue;
+
+ constraint = &lpi_constraints_table[lpi_constraints_table_size];
+
+ status = acpi_get_handle(NULL, info.name, &constraint->handle);
+ if (ACPI_FAILURE(status))
+ continue;
+
+ acpi_handle_debug(lps0_device_handle,
+ "index:%d Name:%s\n", i, info.name);
+
+ constraint->min_dstate = -1;
+
+ for (j = 0; j < package_count; j++) {
+ union acpi_object *info_obj = &info.package[j];
+ union acpi_object *cnstr_pkg;
+ union acpi_object *obj;
+ struct lpi_device_constraint dev_info;
+
+ switch (info_obj->type) {
+ case ACPI_TYPE_INTEGER:
+ /* version */
+ break;
+ case ACPI_TYPE_PACKAGE:
+ if (info_obj->package.count < 2)
+ break;
+
+ cnstr_pkg = info_obj->package.elements;
+ obj = &cnstr_pkg[0];
+ dev_info.uid = obj->integer.value;
+ obj = &cnstr_pkg[1];
+ dev_info.min_dstate = obj->integer.value;
+
+ acpi_handle_debug(lps0_device_handle,
+ "uid:%d min_dstate:%s\n",
+ dev_info.uid,
+ acpi_power_state_string(dev_info.min_dstate));
+
+ constraint->min_dstate = dev_info.min_dstate;
+ break;
+ }
+ }
+
+ if (constraint->min_dstate < 0) {
+ acpi_handle_debug(lps0_device_handle,
+ "Incomplete constraint defined\n");
+ continue;
+ }
+
+ lpi_constraints_table_size++;
+ }
+
+ acpi_handle_debug(lps0_device_handle, "LPI: constraints list end\n");
+
+free_acpi_buffer:
+ ACPI_FREE(out_obj);
+}
+
+/**
+ * acpi_get_lps0_constraint - Get the LPS0 constraint for a device.
+ * @adev: Device to get the constraint for.
+ *
+ * The LPS0 constraint is the shallowest (minimum) power state in which the
+ * device can be so as to allow the platform as a whole to achieve additional
+ * energy conservation by utilizing a system-wide low-power state.
+ *
+ * Returns:
+ * - ACPI power state value of the constraint for @adev on success.
+ * - Otherwise, ACPI_STATE_UNKNOWN.
+ */
+int acpi_get_lps0_constraint(struct acpi_device *adev)
+{
+ struct lpi_constraints *entry;
+
+ for_each_lpi_constraint(entry) {
+ if (adev->handle == entry->handle)
+ return entry->min_dstate;
+ }
+
+ return ACPI_STATE_UNKNOWN;
+}
+
+static void lpi_check_constraints(void)
+{
+ struct lpi_constraints *entry;
+
+ for_each_lpi_constraint(entry) {
+ struct acpi_device *adev = acpi_fetch_acpi_dev(entry->handle);
+
+ if (!adev)
+ continue;
+
+ acpi_handle_debug(entry->handle,
+ "LPI: required min power state:%s current power state:%s\n",
+ acpi_power_state_string(entry->min_dstate),
+ acpi_power_state_string(adev->power.state));
+
+ if (!adev->flags.power_manageable) {
+ acpi_handle_info(entry->handle, "LPI: Device not power manageable\n");
+ entry->handle = NULL;
+ continue;
+ }
+
+ if (adev->power.state < entry->min_dstate)
+ acpi_handle_info(entry->handle,
+ "LPI: Constraint not met; min power state:%s current power state:%s\n",
+ acpi_power_state_string(entry->min_dstate),
+ acpi_power_state_string(adev->power.state));
+ }
+}
+
+static bool acpi_s2idle_vendor_amd(void)
+{
+ return boot_cpu_data.x86_vendor == X86_VENDOR_AMD;
+}
+
+static const char *acpi_sleep_dsm_state_to_str(unsigned int state)
+{
+ if (lps0_dsm_func_mask_microsoft || !acpi_s2idle_vendor_amd()) {
+ switch (state) {
+ case ACPI_LPS0_SCREEN_OFF:
+ return "screen off";
+ case ACPI_LPS0_SCREEN_ON:
+ return "screen on";
+ case ACPI_LPS0_ENTRY:
+ return "lps0 entry";
+ case ACPI_LPS0_EXIT:
+ return "lps0 exit";
+ case ACPI_LPS0_MS_ENTRY:
+ return "lps0 ms entry";
+ case ACPI_LPS0_MS_EXIT:
+ return "lps0 ms exit";
+ }
+ } else {
+ switch (state) {
+ case ACPI_LPS0_SCREEN_ON_AMD:
+ return "screen on";
+ case ACPI_LPS0_SCREEN_OFF_AMD:
+ return "screen off";
+ case ACPI_LPS0_ENTRY_AMD:
+ return "lps0 entry";
+ case ACPI_LPS0_EXIT_AMD:
+ return "lps0 exit";
+ }
+ }
+
+ return "unknown";
+}
+
+static void acpi_sleep_run_lps0_dsm(unsigned int func, unsigned int func_mask, guid_t dsm_guid)
+{
+ union acpi_object *out_obj;
+
+ if (!(func_mask & (1 << func)))
+ return;
+
+ out_obj = acpi_evaluate_dsm(lps0_device_handle, &dsm_guid,
+ rev_id, func, NULL);
+ ACPI_FREE(out_obj);
+
+ lps0_dsm_state = func;
+ if (pm_debug_messages_on) {
+ acpi_handle_info(lps0_device_handle,
+ "%s transitioned to state %s\n",
+ out_obj ? "Successfully" : "Failed to",
+ acpi_sleep_dsm_state_to_str(lps0_dsm_state));
+ }
+}
+
+
+static int validate_dsm(acpi_handle handle, const char *uuid, int rev, guid_t *dsm_guid)
+{
+ union acpi_object *obj;
+ int ret = -EINVAL;
+
+ guid_parse(uuid, dsm_guid);
+ obj = acpi_evaluate_dsm(handle, dsm_guid, rev, 0, NULL);
+
+ /* Check if the _DSM is present and as expected. */
+ if (!obj || obj->type != ACPI_TYPE_BUFFER || obj->buffer.length == 0 ||
+ obj->buffer.length > sizeof(u32)) {
+ acpi_handle_debug(handle,
+ "_DSM UUID %s rev %d function 0 evaluation failed\n", uuid, rev);
+ goto out;
+ }
+
+ ret = *(int *)obj->buffer.pointer;
+ acpi_handle_debug(handle, "_DSM UUID %s rev %d function mask: 0x%x\n", uuid, rev, ret);
+
+out:
+ ACPI_FREE(obj);
+ return ret;
+}
+
+struct amd_lps0_hid_device_data {
+ const bool check_off_by_one;
+};
+
+static const struct amd_lps0_hid_device_data amd_picasso = {
+ .check_off_by_one = true,
+};
+
+static const struct amd_lps0_hid_device_data amd_cezanne = {
+ .check_off_by_one = false,
+};
+
+static const struct acpi_device_id amd_hid_ids[] = {
+ {"AMD0004", (kernel_ulong_t)&amd_picasso, },
+ {"AMD0005", (kernel_ulong_t)&amd_picasso, },
+ {"AMDI0005", (kernel_ulong_t)&amd_picasso, },
+ {"AMDI0006", (kernel_ulong_t)&amd_cezanne, },
+ {}
+};
+
+static int lps0_device_attach(struct acpi_device *adev,
+ const struct acpi_device_id *not_used)
+{
+ if (lps0_device_handle)
+ return 0;
+
+ lps0_dsm_func_mask_microsoft = validate_dsm(adev->handle,
+ ACPI_LPS0_DSM_UUID_MICROSOFT, 0,
+ &lps0_dsm_guid_microsoft);
+ if (acpi_s2idle_vendor_amd()) {
+ static const struct acpi_device_id *dev_id;
+ const struct amd_lps0_hid_device_data *data;
+
+ for (dev_id = &amd_hid_ids[0]; dev_id->id[0]; dev_id++)
+ if (acpi_dev_hid_uid_match(adev, dev_id->id, NULL))
+ break;
+ if (dev_id->id[0])
+ data = (const struct amd_lps0_hid_device_data *) dev_id->driver_data;
+ else
+ data = &amd_cezanne;
+ lps0_dsm_func_mask = validate_dsm(adev->handle,
+ ACPI_LPS0_DSM_UUID_AMD, rev_id, &lps0_dsm_guid);
+ if (lps0_dsm_func_mask > 0x3 && data->check_off_by_one) {
+ lps0_dsm_func_mask = (lps0_dsm_func_mask << 1) | 0x1;
+ acpi_handle_debug(adev->handle, "_DSM UUID %s: Adjusted function mask: 0x%x\n",
+ ACPI_LPS0_DSM_UUID_AMD, lps0_dsm_func_mask);
+ } else if (lps0_dsm_func_mask_microsoft > 0 && rev_id) {
+ lps0_dsm_func_mask_microsoft = -EINVAL;
+ acpi_handle_debug(adev->handle, "_DSM Using AMD method\n");
+ }
+ } else {
+ rev_id = 1;
+ lps0_dsm_func_mask = validate_dsm(adev->handle,
+ ACPI_LPS0_DSM_UUID, rev_id, &lps0_dsm_guid);
+ lps0_dsm_func_mask_microsoft = -EINVAL;
+ }
+
+ if (lps0_dsm_func_mask < 0 && lps0_dsm_func_mask_microsoft < 0)
+ return 0; //function evaluation failed
+
+ lps0_device_handle = adev->handle;
+
+ if (acpi_s2idle_vendor_amd())
+ lpi_device_get_constraints_amd();
+ else
+ lpi_device_get_constraints();
+
+ /*
+ * Use suspend-to-idle by default if ACPI_FADT_LOW_POWER_S0 is set in
+ * the FADT and the default suspend mode was not set from the command
+ * line.
+ */
+ if ((acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) &&
+ mem_sleep_default > PM_SUSPEND_MEM && !acpi_sleep_default_s3) {
+ mem_sleep_current = PM_SUSPEND_TO_IDLE;
+ pr_info("Low-power S0 idle used by default for system suspend\n");
+ }
+
+ /*
+ * Some LPS0 systems, like ASUS Zenbook UX430UNR/i7-8550U, require the
+ * EC GPE to be enabled while suspended for certain wakeup devices to
+ * work, so mark it as wakeup-capable.
+ */
+ acpi_ec_mark_gpe_for_wake();
+
+ return 0;
+}
+
+static struct acpi_scan_handler lps0_handler = {
+ .ids = lps0_device_ids,
+ .attach = lps0_device_attach,
+};
+
+int acpi_s2idle_prepare_late(void)
+{
+ struct acpi_s2idle_dev_ops *handler;
+
+ if (!lps0_device_handle || sleep_no_lps0)
+ return 0;
+
+ if (pm_debug_messages_on)
+ lpi_check_constraints();
+
+ /* Screen off */
+ if (lps0_dsm_func_mask > 0)
+ acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ?
+ ACPI_LPS0_SCREEN_OFF_AMD :
+ ACPI_LPS0_SCREEN_OFF,
+ lps0_dsm_func_mask, lps0_dsm_guid);
+
+ if (lps0_dsm_func_mask_microsoft > 0)
+ acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF,
+ lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
+
+ /* LPS0 entry */
+ if (lps0_dsm_func_mask > 0)
+ acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ?
+ ACPI_LPS0_ENTRY_AMD :
+ ACPI_LPS0_ENTRY,
+ lps0_dsm_func_mask, lps0_dsm_guid);
+ if (lps0_dsm_func_mask_microsoft > 0) {
+ /* modern standby entry */
+ acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_ENTRY,
+ lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
+ acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY,
+ lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
+ }
+
+ list_for_each_entry(handler, &lps0_s2idle_devops_head, list_node) {
+ if (handler->prepare)
+ handler->prepare();
+ }
+
+ return 0;
+}
+
+void acpi_s2idle_check(void)
+{
+ struct acpi_s2idle_dev_ops *handler;
+
+ if (!lps0_device_handle || sleep_no_lps0)
+ return;
+
+ list_for_each_entry(handler, &lps0_s2idle_devops_head, list_node) {
+ if (handler->check)
+ handler->check();
+ }
+}
+
+void acpi_s2idle_restore_early(void)
+{
+ struct acpi_s2idle_dev_ops *handler;
+
+ if (!lps0_device_handle || sleep_no_lps0)
+ return;
+
+ list_for_each_entry(handler, &lps0_s2idle_devops_head, list_node)
+ if (handler->restore)
+ handler->restore();
+
+ /* LPS0 exit */
+ if (lps0_dsm_func_mask > 0)
+ acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ?
+ ACPI_LPS0_EXIT_AMD :
+ ACPI_LPS0_EXIT,
+ lps0_dsm_func_mask, lps0_dsm_guid);
+ if (lps0_dsm_func_mask_microsoft > 0)
+ acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT,
+ lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
+
+ /* Modern standby exit */
+ if (lps0_dsm_func_mask_microsoft > 0)
+ acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_EXIT,
+ lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
+
+ /* Screen on */
+ if (lps0_dsm_func_mask_microsoft > 0)
+ acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_ON,
+ lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
+ if (lps0_dsm_func_mask > 0)
+ acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ?
+ ACPI_LPS0_SCREEN_ON_AMD :
+ ACPI_LPS0_SCREEN_ON,
+ lps0_dsm_func_mask, lps0_dsm_guid);
+}
+
+static const struct platform_s2idle_ops acpi_s2idle_ops_lps0 = {
+ .begin = acpi_s2idle_begin,
+ .prepare = acpi_s2idle_prepare,
+ .prepare_late = acpi_s2idle_prepare_late,
+ .check = acpi_s2idle_check,
+ .wake = acpi_s2idle_wake,
+ .restore_early = acpi_s2idle_restore_early,
+ .restore = acpi_s2idle_restore,
+ .end = acpi_s2idle_end,
+};
+
+void __init acpi_s2idle_setup(void)
+{
+ acpi_scan_add_handler(&lps0_handler);
+ s2idle_set_ops(&acpi_s2idle_ops_lps0);
+}
+
+int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg)
+{
+ unsigned int sleep_flags;
+
+ if (!lps0_device_handle || sleep_no_lps0)
+ return -ENODEV;
+
+ sleep_flags = lock_system_sleep();
+ list_add(&arg->list_node, &lps0_s2idle_devops_head);
+ unlock_system_sleep(sleep_flags);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(acpi_register_lps0_dev);
+
+void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg)
+{
+ unsigned int sleep_flags;
+
+ if (!lps0_device_handle || sleep_no_lps0)
+ return;
+
+ sleep_flags = lock_system_sleep();
+ list_del(&arg->list_node);
+ unlock_system_sleep(sleep_flags);
+}
+EXPORT_SYMBOL_GPL(acpi_unregister_lps0_dev);
+
+#endif /* CONFIG_SUSPEND */
diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c
new file mode 100644
index 0000000000..63d834dd38
--- /dev/null
+++ b/drivers/acpi/x86/utils.c
@@ -0,0 +1,555 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * X86 ACPI Utility Functions
+ *
+ * Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com>
+ *
+ * Based on various non upstream patches to support the CHT Whiskey Cove PMIC:
+ * Copyright (C) 2013-2015 Intel Corporation. All rights reserved.
+ */
+
+#define pr_fmt(fmt) "ACPI: " fmt
+
+#include <linux/acpi.h>
+#include <linux/dmi.h>
+#include <linux/platform_device.h>
+#include <asm/cpu_device_id.h>
+#include <asm/intel-family.h>
+#include "../internal.h"
+
+/*
+ * Some ACPI devices are hidden (status == 0x0) in recent BIOS-es because
+ * some recent Windows drivers bind to one device but poke at multiple
+ * devices at the same time, so the others get hidden.
+ *
+ * Some BIOS-es (temporarily) hide specific APCI devices to work around Windows
+ * driver bugs. We use DMI matching to match known cases of this.
+ *
+ * Likewise sometimes some not-actually present devices are sometimes
+ * reported as present, which may cause issues.
+ *
+ * We work around this by using the below quirk list to override the status
+ * reported by the _STA method with a fixed value (ACPI_STA_DEFAULT or 0).
+ * Note this MUST only be done for devices where this is safe.
+ *
+ * This status overriding is limited to specific CPU (SoC) models both to
+ * avoid potentially causing trouble on other models and because some HIDs
+ * are re-used on different SoCs for completely different devices.
+ */
+struct override_status_id {
+ struct acpi_device_id hid[2];
+ struct x86_cpu_id cpu_ids[2];
+ struct dmi_system_id dmi_ids[2]; /* Optional */
+ const char *uid;
+ const char *path;
+ unsigned long long status;
+};
+
+#define ENTRY(status, hid, uid, path, cpu_model, dmi...) { \
+ { { hid, }, {} }, \
+ { X86_MATCH_INTEL_FAM6_MODEL(cpu_model, NULL), {} }, \
+ { { .matches = dmi }, {} }, \
+ uid, \
+ path, \
+ status, \
+}
+
+#define PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \
+ ENTRY(ACPI_STA_DEFAULT, hid, uid, NULL, cpu_model, dmi)
+
+#define NOT_PRESENT_ENTRY_HID(hid, uid, cpu_model, dmi...) \
+ ENTRY(0, hid, uid, NULL, cpu_model, dmi)
+
+#define PRESENT_ENTRY_PATH(path, cpu_model, dmi...) \
+ ENTRY(ACPI_STA_DEFAULT, "", NULL, path, cpu_model, dmi)
+
+#define NOT_PRESENT_ENTRY_PATH(path, cpu_model, dmi...) \
+ ENTRY(0, "", NULL, path, cpu_model, dmi)
+
+static const struct override_status_id override_status_ids[] = {
+ /*
+ * Bay / Cherry Trail PWM directly poked by GPU driver in win10,
+ * but Linux uses a separate PWM driver, harmless if not used.
+ */
+ PRESENT_ENTRY_HID("80860F09", "1", ATOM_SILVERMONT, {}),
+ PRESENT_ENTRY_HID("80862288", "1", ATOM_AIRMONT, {}),
+
+ /* The Xiaomi Mi Pad 2 uses PWM2 for touchkeys backlight control */
+ PRESENT_ENTRY_HID("80862289", "2", ATOM_AIRMONT, {
+ DMI_MATCH(DMI_SYS_VENDOR, "Xiaomi Inc"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"),
+ }),
+
+ /*
+ * The INT0002 device is necessary to clear wakeup interrupt sources
+ * on Cherry Trail devices, without it we get nobody cared IRQ msgs.
+ */
+ PRESENT_ENTRY_HID("INT0002", "1", ATOM_AIRMONT, {}),
+ /*
+ * On the Dell Venue 11 Pro 7130 and 7139, the DSDT hides
+ * the touchscreen ACPI device until a certain time
+ * after _SB.PCI0.GFX0.LCD.LCD1._ON gets called has passed
+ * *and* _STA has been called at least 3 times since.
+ */
+ PRESENT_ENTRY_HID("SYNA7500", "1", HASWELL_L, {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7130"),
+ }),
+ PRESENT_ENTRY_HID("SYNA7500", "1", HASWELL_L, {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7139"),
+ }),
+
+ /*
+ * The GPD win BIOS dated 20170221 has disabled the accelerometer, the
+ * drivers sometimes cause crashes under Windows and this is how the
+ * manufacturer has solved this :| The DMI match may not seem unique,
+ * but it is. In the 67000+ DMI decode dumps from linux-hardware.org
+ * only 116 have board_vendor set to "AMI Corporation" and of those 116
+ * only the GPD win and pocket entries' board_name is "Default string".
+ *
+ * Unfortunately the GPD pocket also uses these strings and its BIOS
+ * was copy-pasted from the GPD win, so it has a disabled KIOX000A
+ * node which we should not enable, thus we also check the BIOS date.
+ */
+ PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, {
+ DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+ DMI_MATCH(DMI_BOARD_NAME, "Default string"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
+ DMI_MATCH(DMI_BIOS_DATE, "02/21/2017")
+ }),
+ PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, {
+ DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+ DMI_MATCH(DMI_BOARD_NAME, "Default string"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
+ DMI_MATCH(DMI_BIOS_DATE, "03/20/2017")
+ }),
+ PRESENT_ENTRY_HID("KIOX000A", "1", ATOM_AIRMONT, {
+ DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+ DMI_MATCH(DMI_BOARD_NAME, "Default string"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
+ DMI_MATCH(DMI_BIOS_DATE, "05/25/2017")
+ }),
+
+ /*
+ * The GPD win/pocket have a PCI wifi card, but its DSDT has the SDIO
+ * mmc controller enabled and that has a child-device which _PS3
+ * method sets a GPIO causing the PCI wifi card to turn off.
+ * See above remark about uniqueness of the DMI match.
+ */
+ NOT_PRESENT_ENTRY_PATH("\\_SB_.PCI0.SDHB.BRC1", ATOM_AIRMONT, {
+ DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+ DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
+ DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
+ }),
+
+ /*
+ * The LSM303D on the Lenovo Yoga Tablet 2 series is present
+ * as both ACCL0001 and MAGN0001. As we can only ever register an
+ * i2c client for one of them, ignore MAGN0001.
+ */
+ NOT_PRESENT_ENTRY_HID("MAGN0001", "1", ATOM_SILVERMONT, {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_FAMILY, "YOGATablet2"),
+ }),
+};
+
+bool acpi_device_override_status(struct acpi_device *adev, unsigned long long *status)
+{
+ bool ret = false;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(override_status_ids); i++) {
+ if (!x86_match_cpu(override_status_ids[i].cpu_ids))
+ continue;
+
+ if (override_status_ids[i].dmi_ids[0].matches[0].slot &&
+ !dmi_check_system(override_status_ids[i].dmi_ids))
+ continue;
+
+ if (override_status_ids[i].path) {
+ struct acpi_buffer path = { ACPI_ALLOCATE_BUFFER, NULL };
+ bool match;
+
+ if (acpi_get_name(adev->handle, ACPI_FULL_PATHNAME, &path))
+ continue;
+
+ match = strcmp((char *)path.pointer, override_status_ids[i].path) == 0;
+ kfree(path.pointer);
+
+ if (!match)
+ continue;
+ } else {
+ if (acpi_match_device_ids(adev, override_status_ids[i].hid))
+ continue;
+
+ if (!adev->pnp.unique_id ||
+ strcmp(adev->pnp.unique_id, override_status_ids[i].uid))
+ continue;
+ }
+
+ *status = override_status_ids[i].status;
+ ret = true;
+ break;
+ }
+
+ return ret;
+}
+
+/*
+ * AMD systems from Renoir and Lucienne *require* that the NVME controller
+ * is put into D3 over a Modern Standby / suspend-to-idle cycle.
+ *
+ * This is "typically" accomplished using the `StorageD3Enable`
+ * property in the _DSD that is checked via the `acpi_storage_d3` function
+ * but this property was introduced after many of these systems launched
+ * and most OEM systems don't have it in their BIOS.
+ *
+ * The Microsoft documentation for StorageD3Enable mentioned that Windows has
+ * a hardcoded allowlist for D3 support, which was used for these platforms.
+ *
+ * This allows quirking on Linux in a similar fashion.
+ *
+ * Cezanne systems shouldn't *normally* need this as the BIOS includes
+ * StorageD3Enable. But for two reasons we have added it.
+ * 1) The BIOS on a number of Dell systems have ambiguity
+ * between the same value used for _ADR on ACPI nodes GPP1.DEV0 and GPP1.NVME.
+ * GPP1.NVME is needed to get StorageD3Enable node set properly.
+ * https://bugzilla.kernel.org/show_bug.cgi?id=216440
+ * https://bugzilla.kernel.org/show_bug.cgi?id=216773
+ * https://bugzilla.kernel.org/show_bug.cgi?id=217003
+ * 2) On at least one HP system StorageD3Enable is missing on the second NVME
+ disk in the system.
+ */
+static const struct x86_cpu_id storage_d3_cpu_ids[] = {
+ X86_MATCH_VENDOR_FAM_MODEL(AMD, 23, 24, NULL), /* Picasso */
+ X86_MATCH_VENDOR_FAM_MODEL(AMD, 23, 96, NULL), /* Renoir */
+ X86_MATCH_VENDOR_FAM_MODEL(AMD, 23, 104, NULL), /* Lucienne */
+ X86_MATCH_VENDOR_FAM_MODEL(AMD, 25, 80, NULL), /* Cezanne */
+ {}
+};
+
+bool force_storage_d3(void)
+{
+ return x86_match_cpu(storage_d3_cpu_ids);
+}
+
+/*
+ * x86 ACPI boards which ship with only Android as their factory image usually
+ * declare a whole bunch of bogus I2C devices in their ACPI tables and sometimes
+ * there are issues with serdev devices on these boards too, e.g. the resource
+ * points to the wrong serdev_controller.
+ *
+ * Instantiating I2C / serdev devs for these bogus devs causes various issues,
+ * e.g. GPIO/IRQ resource conflicts because sometimes drivers do bind to them.
+ * The Android x86 kernel fork shipped on these devices has some special code
+ * to remove the bogus I2C clients (and AFAICT serdevs are ignored completely).
+ *
+ * The acpi_quirk_skip_*_enumeration() functions below are used by the I2C or
+ * serdev code to skip instantiating any I2C or serdev devs on broken boards.
+ *
+ * In case of I2C an exception is made for HIDs on the i2c_acpi_known_good_ids
+ * list. These are known to always be correct (and in case of the audio-codecs
+ * the drivers heavily rely on the codec being enumerated through ACPI).
+ *
+ * Note these boards typically do actually have I2C and serdev devices,
+ * just different ones then the ones described in their DSDT. The devices
+ * which are actually present are manually instantiated by the
+ * drivers/platform/x86/x86-android-tablets.c kernel module.
+ */
+#define ACPI_QUIRK_SKIP_I2C_CLIENTS BIT(0)
+#define ACPI_QUIRK_UART1_SKIP BIT(1)
+#define ACPI_QUIRK_UART1_TTY_UART2_SKIP BIT(2)
+#define ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY BIT(3)
+#define ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY BIT(4)
+#define ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS BIT(5)
+
+static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = {
+ /*
+ * 1. Devices with only the skip / don't-skip AC and battery quirks,
+ * sorted alphabetically.
+ */
+ {
+ /* ECS EF20EA, AXP288 PMIC but uses separate fuel-gauge */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"),
+ },
+ .driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY
+ },
+ {
+ /* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "80XF"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
+ },
+ .driver_data = (void *)ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY
+ },
+
+ /*
+ * 2. Devices which also have the skip i2c/serdev quirks and which
+ * need the x86-android-tablets module to properly work.
+ */
+#if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS)
+ {
+ /* Acer Iconia One 7 B1-750 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VESPA2"),
+ },
+ .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
+ ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
+ ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
+ },
+ {
+ .matches = {
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ME176C"),
+ },
+ .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
+ ACPI_QUIRK_UART1_TTY_UART2_SKIP |
+ ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
+ ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
+ },
+ {
+ /* Lenovo Yoga Book X90F/L */
+ .matches = {
+ DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "YETI-11"),
+ },
+ .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
+ ACPI_QUIRK_UART1_SKIP |
+ ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
+ ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TF103C"),
+ },
+ .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
+ ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
+ ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
+ },
+ {
+ /* Lenovo Yoga Tablet 2 1050F/L */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"),
+ DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
+ /* Partial match on beginning of BIOS version */
+ DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21"),
+ },
+ .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
+ ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
+ },
+ {
+ /* Lenovo Yoga Tab 3 Pro X90F */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Blade3-10A-001"),
+ },
+ .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
+ ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
+ },
+ {
+ /* Medion Lifetab S10346 */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+ DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
+ /* Way too generic, also match on BIOS data */
+ DMI_MATCH(DMI_BIOS_DATE, "10/22/2015"),
+ },
+ .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
+ ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
+ },
+ {
+ /* Nextbook Ares 8 (BYT version)*/
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "M890BAP"),
+ },
+ .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
+ ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY |
+ ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS),
+ },
+ {
+ /* Nextbook Ares 8A (CHT version)*/
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "CherryTrail"),
+ DMI_MATCH(DMI_BIOS_VERSION, "M882"),
+ },
+ .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
+ ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
+ },
+ {
+ /* Whitelabel (sold as various brands) TM800A550L */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+ DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
+ /* Above strings are too generic, also match on BIOS version */
+ DMI_MATCH(DMI_BIOS_VERSION, "ZY-8-BI-PX4S70VTR400-X423B-005-D"),
+ },
+ .driver_data = (void *)(ACPI_QUIRK_SKIP_I2C_CLIENTS |
+ ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY),
+ },
+#endif
+ {}
+};
+
+#if IS_ENABLED(CONFIG_X86_ANDROID_TABLETS)
+static const struct acpi_device_id i2c_acpi_known_good_ids[] = {
+ { "10EC5640", 0 }, /* RealTek ALC5640 audio codec */
+ { "10EC5651", 0 }, /* RealTek ALC5651 audio codec */
+ { "INT33F4", 0 }, /* X-Powers AXP288 PMIC */
+ { "INT33FD", 0 }, /* Intel Crystal Cove PMIC */
+ { "INT34D3", 0 }, /* Intel Whiskey Cove PMIC */
+ { "NPCE69A", 0 }, /* Asus Transformer keyboard dock */
+ {}
+};
+
+bool acpi_quirk_skip_i2c_client_enumeration(struct acpi_device *adev)
+{
+ const struct dmi_system_id *dmi_id;
+ long quirks;
+
+ dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
+ if (!dmi_id)
+ return false;
+
+ quirks = (unsigned long)dmi_id->driver_data;
+ if (!(quirks & ACPI_QUIRK_SKIP_I2C_CLIENTS))
+ return false;
+
+ return acpi_match_device_ids(adev, i2c_acpi_known_good_ids);
+}
+EXPORT_SYMBOL_GPL(acpi_quirk_skip_i2c_client_enumeration);
+
+int acpi_quirk_skip_serdev_enumeration(struct device *controller_parent, bool *skip)
+{
+ struct acpi_device *adev = ACPI_COMPANION(controller_parent);
+ const struct dmi_system_id *dmi_id;
+ long quirks = 0;
+ u64 uid;
+ int ret;
+
+ *skip = false;
+
+ ret = acpi_dev_uid_to_integer(adev, &uid);
+ if (ret)
+ return 0;
+
+ /* to not match on PNP enumerated debug UARTs */
+ if (!dev_is_platform(controller_parent))
+ return 0;
+
+ dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
+ if (dmi_id)
+ quirks = (unsigned long)dmi_id->driver_data;
+
+ if ((quirks & ACPI_QUIRK_UART1_SKIP) && uid == 1)
+ *skip = true;
+
+ if (quirks & ACPI_QUIRK_UART1_TTY_UART2_SKIP) {
+ if (uid == 1)
+ return -ENODEV; /* Create tty cdev instead of serdev */
+
+ if (uid == 2)
+ *skip = true;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(acpi_quirk_skip_serdev_enumeration);
+
+bool acpi_quirk_skip_gpio_event_handlers(void)
+{
+ const struct dmi_system_id *dmi_id;
+ long quirks;
+
+ dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
+ if (!dmi_id)
+ return false;
+
+ quirks = (unsigned long)dmi_id->driver_data;
+ return (quirks & ACPI_QUIRK_SKIP_GPIO_EVENT_HANDLERS);
+}
+EXPORT_SYMBOL_GPL(acpi_quirk_skip_gpio_event_handlers);
+#endif
+
+/* Lists of PMIC ACPI HIDs with an (often better) native charger driver */
+static const struct {
+ const char *hid;
+ int hrv;
+} acpi_skip_ac_and_battery_pmic_ids[] = {
+ { "INT33F4", -1 }, /* X-Powers AXP288 PMIC */
+ { "INT34D3", 3 }, /* Intel Cherrytrail Whiskey Cove PMIC */
+};
+
+bool acpi_quirk_skip_acpi_ac_and_battery(void)
+{
+ const struct dmi_system_id *dmi_id;
+ long quirks = 0;
+ int i;
+
+ dmi_id = dmi_first_match(acpi_quirk_skip_dmi_ids);
+ if (dmi_id)
+ quirks = (unsigned long)dmi_id->driver_data;
+
+ if (quirks & ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY)
+ return true;
+
+ if (quirks & ACPI_QUIRK_USE_ACPI_AC_AND_BATTERY)
+ return false;
+
+ for (i = 0; i < ARRAY_SIZE(acpi_skip_ac_and_battery_pmic_ids); i++) {
+ if (acpi_dev_present(acpi_skip_ac_and_battery_pmic_ids[i].hid, "1",
+ acpi_skip_ac_and_battery_pmic_ids[i].hrv)) {
+ pr_info_once("found native %s PMIC, skipping ACPI AC and battery devices\n",
+ acpi_skip_ac_and_battery_pmic_ids[i].hid);
+ return true;
+ }
+ }
+
+ return false;
+}
+EXPORT_SYMBOL_GPL(acpi_quirk_skip_acpi_ac_and_battery);
+
+/* This section provides a workaround for a specific x86 system
+ * which requires disabling of mwait to work correctly.
+ */
+static int __init acpi_proc_quirk_set_no_mwait(const struct dmi_system_id *id)
+{
+ pr_notice("%s detected - disabling mwait for CPU C-states\n",
+ id->ident);
+ boot_option_idle_override = IDLE_NOMWAIT;
+ return 0;
+}
+
+static const struct dmi_system_id acpi_proc_quirk_mwait_dmi_table[] __initconst = {
+ {
+ .callback = acpi_proc_quirk_set_no_mwait,
+ .ident = "Extensa 5220",
+ .matches = {
+ DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
+ DMI_MATCH(DMI_BOARD_NAME, "Columbia"),
+ },
+ .driver_data = NULL,
+ },
+ {}
+};
+
+void __init acpi_proc_quirk_mwait_check(void)
+{
+ /*
+ * Check whether the system is DMI table. If yes, OSPM
+ * should not use mwait for CPU-states.
+ */
+ dmi_check_system(acpi_proc_quirk_mwait_dmi_table);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-17 14:20:31 +0000