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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-04 01:49:36 +00:00
![Linus Torvalds](/assets/img/avatar_default.png)
Highlights: - new drivers: - AMD Host System Management Port (HSMP) - Intel Software Defined Silicon - removed drivers (functionality folded into other drivers): - intel_cht_int33fe_microb - surface3_button - amd-pmc: - s2idle bug-fixes - Support for AMD Spill to DRAM STB feature - hp-wmi: - Fix SW_TABLET_MODE detection method (and other fixes) - Support omen thermal profile policy v1 - serial-multi-instantiate: - Add SPI device support - Add support for CS35L41 amplifiers used in new laptops - think-lmi: - syfs-class-firmware-attributes Certificate authentication support - thinkpad_acpi: - Fixes + quirks - Add platform_profile support on AMD based ThinkPads - x86-android-tablets - Improve Asus ME176C / TF103C support - Support Nextbook Ares 8, Lenovo Tab 2 830 and 1050 tablets - Lots of various other small fixes and hardware-id additions The following is an automated git shortlog grouped by driver: ACPI / scan: - Create platform device for CS35L41 ACPI / x86: - Add support for LPS0 callback handler ALSA: - hda/realtek: Add support for HP Laptops Add AMD system management interface: - Add AMD system management interface Add Intel Software Defined Silicon driver: - Add Intel Software Defined Silicon driver Documentation: - syfs-class-firmware-attributes: Lenovo Certificate support - Add x86/amd_hsmp driver ISST: - Fix possible circular locking dependency detected Input: - soc_button_array - add support for Microsoft Surface 3 (MSHW0028) buttons Merge remote-tracking branch 'pdx86/platform-drivers-x86-pinctrl-pmu_clk' into review-hans-gcc12: - Merge remote-tracking branch 'pdx86/platform-drivers-x86-pinctrl-pmu_clk' into review-hans-gcc12 Merge tag 'platform-drivers-x86-serial-multi-instantiate-1' into review-hans: - Merge tag 'platform-drivers-x86-serial-multi-instantiate-1' into review-hans Replace acpi_bus_get_device(): - Replace acpi_bus_get_device() amd-pmc: - Only report STB errors when STB enabled - Drop CPU QoS workaround - Output error codes in messages - Move to later in the suspend process - Validate entry into the deepest state on resume - uninitialized variable in amd_pmc_s2d_init() - Set QOS during suspend on CZN w/ timer wakeup - Add support for AMD Spill to DRAM STB feature - Correct usage of SMU version - Make amd_pmc_stb_debugfs_fops static asus-tf103c-dock: - Make 2 global structs static asus-wmi: - Fix regression when probing for fan curve control hp-wmi: - support omen thermal profile policy v1 - Changing bios_args.data to be dynamically allocated - Fix 0x05 error code reported by several WMI calls - Fix SW_TABLET_MODE detection method - Fix hp_wmi_read_int() reporting error (0x05) huawei-wmi: - check the return value of device_create_file() i2c-multi-instantiate: - Rename it for a generic serial driver name int3472: - Add terminator to gpiod_lookup_table intel-uncore-freq: - fix uncore_freq_common_init() error codes intel_cht_int33fe: - Move to intel directory - Drop Lenovo Yogabook YB1-X9x code - Switch to DMI modalias based loading intel_crystal_cove_charger: - Fix IRQ masking / unmasking lg-laptop: - Move setting of battery charge limit to common location pinctrl: - baytrail: Add pinconf group + function for the pmu_clk platform/dcdbas: - move EXPORT_SYMBOL after function platform/surface: - Remove Surface 3 Button driver - surface3-wmi: Simplify resource management - Replace acpi_bus_get_device() - Reinstate platform dependency platform/x86/intel-uncore-freq: - Split common and enumeration part platform/x86/intel/uncore-freq: - Display uncore current frequency - Use sysfs API to create attributes - Move to uncore-frequency folder selftests: - sdsi: test sysfs setup serial-multi-instantiate: - Add SPI support - Reorganize I2C functions spi: - Add API to count spi acpi resources - Support selection of the index of the ACPI Spi Resource before alloc - Create helper API to lookup ACPI info for spi device - Make spi_alloc_device and spi_add_device public again surface: - surface3_power: Fix battery readings on batteries without a serial number think-lmi: - Certificate authentication support thinkpad_acpi: - consistently check fan_get_status return. - Don't use test_bit on an integer - Fix compiler warning about uninitialized err variable - clean up dytc profile convert - Add PSC mode support - Add dual fan probe - Add dual-fan quirk for T15g (2nd gen) - Fix incorrect use of platform profile on AMD platforms - Add quirk for ThinkPads without a fan tools arch x86: - Add Intel SDSi provisiong tool touchscreen_dmi: - Add info for the RWC NANOTE P8 AY07J 2-in-1 x86-android-tablets: - Depend on EFI and SPI - Lenovo Yoga Tablet 2 830/1050 sound support - Workaround Lenovo Yoga Tablet 2 830/1050 poweroff hang - Add Lenovo Yoga Tablet 2 830 / 1050 data - Fix EBUSY error when requesting IOAPIC IRQs - Minor charger / fuel-gauge improvements - Add Nextbook Ares 8 data - Add IRQ to Asus ME176C accelerometer info - Add lid-switch gpio-keys pdev to Asus ME176C + TF103C - Add x86_android_tablet_get_gpiod() helper - Add Asus ME176C/TF103C charger and fuelgauge props - Add battery swnode support - Trivial typo fix for MODULE_AUTHOR - Fix the buttons on CZC P10T tablet - Constify the gpiod_lookup_tables arrays - Add an init() callback to struct x86_dev_info - Add support for disabling ACPI _AEI handlers - Correct crystal_cove_charger module name -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEEuvA7XScYQRpenhd+kuxHeUQDJ9wFAmI8SjEUHGhkZWdvZWRl QHJlZGhhdC5jb20ACgkQkuxHeUQDJ9wYUwf/cdUMPFy5cwpHq1LuqGy+PxVCRHCe 71PFd2Ycj+HGOtrt66RxSiCC1Seb4tylr7FvudToDaqWjlBf5n6LhpDudg4ds7Qw lCuRlaXTIrF7p3nOLIsWvJPRqacMG79KkRM62MLTS2evtRYjbnKvFzNPJPzr8827 1AhCakE92S8gkR5lUZYYHtsaz9rZ4z4TrEtjO6GdlbL2bDw0l18dNNwdMomfVpNS bBIHIDLeufDuMJ4PxIHlE5MB3AuZAuc0HTJWihozyJX/h5FMGI6qVm0/s9RAfHgX XdMCpADtS/JjHCmkFgLZYIzvXTxwQVZRo5VO0Wrv5Mis6gSpxJXCd0aKlA== =1x9/ -----END PGP SIGNATURE----- Merge tag 'platform-drivers-x86-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Hans de Goede: "New drivers: - AMD Host System Management Port (HSMP) - Intel Software Defined Silicon Removed drivers (functionality folded into other drivers): - intel_cht_int33fe_microb - surface3_button amd-pmc: - s2idle bug-fixes - Support for AMD Spill to DRAM STB feature hp-wmi: - Fix SW_TABLET_MODE detection method (and other fixes) - Support omen thermal profile policy v1 serial-multi-instantiate: - Add SPI device support - Add support for CS35L41 amplifiers used in new laptops think-lmi: - syfs-class-firmware-attributes Certificate authentication support thinkpad_acpi: - Fixes + quirks - Add platform_profile support on AMD based ThinkPads x86-android-tablets: - Improve Asus ME176C / TF103C support - Support Nextbook Ares 8, Lenovo Tab 2 830 and 1050 tablets Lots of various other small fixes and hardware-id additions" * tag 'platform-drivers-x86-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (60 commits) platform/x86: think-lmi: Certificate authentication support Documentation: syfs-class-firmware-attributes: Lenovo Certificate support platform/x86: amd-pmc: Only report STB errors when STB enabled platform/x86: amd-pmc: Drop CPU QoS workaround platform/x86: amd-pmc: Output error codes in messages platform/x86: amd-pmc: Move to later in the suspend process ACPI / x86: Add support for LPS0 callback handler platform/x86: thinkpad_acpi: consistently check fan_get_status return. platform/x86: hp-wmi: support omen thermal profile policy v1 platform/x86: hp-wmi: Changing bios_args.data to be dynamically allocated platform/x86: hp-wmi: Fix 0x05 error code reported by several WMI calls platform/x86: hp-wmi: Fix SW_TABLET_MODE detection method platform/x86: hp-wmi: Fix hp_wmi_read_int() reporting error (0x05) platform/x86: amd-pmc: Validate entry into the deepest state on resume platform/x86: thinkpad_acpi: Don't use test_bit on an integer platform/x86: thinkpad_acpi: Fix compiler warning about uninitialized err variable platform/x86: thinkpad_acpi: clean up dytc profile convert platform/x86: x86-android-tablets: Depend on EFI and SPI platform/x86: amd-pmc: uninitialized variable in amd_pmc_s2d_init() platform/x86: intel-uncore-freq: fix uncore_freq_common_init() error codes ...
563 lines
15 KiB
C
563 lines
15 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Architecture-specific ACPI-based support for suspend-to-idle.
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*
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* Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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* Author: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
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* Author: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
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*
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* On platforms supporting the Low Power S0 Idle interface there is an ACPI
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* device object with the PNP0D80 compatible device ID (System Power Management
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* Controller) and a specific _DSM method under it. That method, if present,
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* can be used to indicate to the platform that the OS is transitioning into a
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* low-power state in which certain types of activity are not desirable or that
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* it is leaving such a state, which allows the platform to adjust its operation
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* mode accordingly.
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*/
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#include <linux/acpi.h>
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#include <linux/device.h>
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#include <linux/suspend.h>
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#include "../sleep.h"
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#ifdef CONFIG_SUSPEND
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static bool sleep_no_lps0 __read_mostly;
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module_param(sleep_no_lps0, bool, 0644);
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MODULE_PARM_DESC(sleep_no_lps0, "Do not use the special LPS0 device interface");
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static const struct acpi_device_id lps0_device_ids[] = {
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{"PNP0D80", },
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{"", },
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};
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/* Microsoft platform agnostic UUID */
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#define ACPI_LPS0_DSM_UUID_MICROSOFT "11e00d56-ce64-47ce-837b-1f898f9aa461"
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#define ACPI_LPS0_DSM_UUID "c4eb40a0-6cd2-11e2-bcfd-0800200c9a66"
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#define ACPI_LPS0_GET_DEVICE_CONSTRAINTS 1
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#define ACPI_LPS0_SCREEN_OFF 3
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#define ACPI_LPS0_SCREEN_ON 4
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#define ACPI_LPS0_ENTRY 5
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#define ACPI_LPS0_EXIT 6
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#define ACPI_LPS0_MS_ENTRY 7
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#define ACPI_LPS0_MS_EXIT 8
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/* AMD */
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#define ACPI_LPS0_DSM_UUID_AMD "e3f32452-febc-43ce-9039-932122d37721"
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#define ACPI_LPS0_ENTRY_AMD 2
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#define ACPI_LPS0_EXIT_AMD 3
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#define ACPI_LPS0_SCREEN_OFF_AMD 4
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#define ACPI_LPS0_SCREEN_ON_AMD 5
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static acpi_handle lps0_device_handle;
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static guid_t lps0_dsm_guid;
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static int lps0_dsm_func_mask;
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static guid_t lps0_dsm_guid_microsoft;
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static int lps0_dsm_func_mask_microsoft;
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/* Device constraint entry structure */
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struct lpi_device_info {
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char *name;
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int enabled;
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union acpi_object *package;
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};
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/* Constraint package structure */
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struct lpi_device_constraint {
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int uid;
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int min_dstate;
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int function_states;
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};
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struct lpi_constraints {
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acpi_handle handle;
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int min_dstate;
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};
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/* AMD Constraint package structure */
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struct lpi_device_constraint_amd {
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char *name;
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int enabled;
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int function_states;
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int min_dstate;
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};
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static LIST_HEAD(lps0_s2idle_devops_head);
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static struct lpi_constraints *lpi_constraints_table;
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static int lpi_constraints_table_size;
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static int rev_id;
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static void lpi_device_get_constraints_amd(void)
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{
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union acpi_object *out_obj;
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int i, j, k;
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out_obj = acpi_evaluate_dsm_typed(lps0_device_handle, &lps0_dsm_guid,
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rev_id, ACPI_LPS0_GET_DEVICE_CONSTRAINTS,
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NULL, ACPI_TYPE_PACKAGE);
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acpi_handle_debug(lps0_device_handle, "_DSM function 1 eval %s\n",
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out_obj ? "successful" : "failed");
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if (!out_obj)
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return;
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for (i = 0; i < out_obj->package.count; i++) {
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union acpi_object *package = &out_obj->package.elements[i];
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if (package->type == ACPI_TYPE_PACKAGE) {
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lpi_constraints_table = kcalloc(package->package.count,
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sizeof(*lpi_constraints_table),
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GFP_KERNEL);
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if (!lpi_constraints_table)
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goto free_acpi_buffer;
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acpi_handle_debug(lps0_device_handle,
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"LPI: constraints list begin:\n");
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for (j = 0; j < package->package.count; ++j) {
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union acpi_object *info_obj = &package->package.elements[j];
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struct lpi_device_constraint_amd dev_info = {};
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struct lpi_constraints *list;
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acpi_status status;
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for (k = 0; k < info_obj->package.count; ++k) {
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union acpi_object *obj = &info_obj->package.elements[k];
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list = &lpi_constraints_table[lpi_constraints_table_size];
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list->min_dstate = -1;
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switch (k) {
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case 0:
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dev_info.enabled = obj->integer.value;
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break;
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case 1:
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dev_info.name = obj->string.pointer;
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break;
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case 2:
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dev_info.function_states = obj->integer.value;
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break;
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case 3:
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dev_info.min_dstate = obj->integer.value;
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break;
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}
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if (!dev_info.enabled || !dev_info.name ||
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!dev_info.min_dstate)
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continue;
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status = acpi_get_handle(NULL, dev_info.name,
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&list->handle);
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if (ACPI_FAILURE(status))
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continue;
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acpi_handle_debug(lps0_device_handle,
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"Name:%s\n", dev_info.name);
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list->min_dstate = dev_info.min_dstate;
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if (list->min_dstate < 0) {
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acpi_handle_debug(lps0_device_handle,
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"Incomplete constraint defined\n");
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continue;
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}
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}
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lpi_constraints_table_size++;
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}
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}
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}
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acpi_handle_debug(lps0_device_handle, "LPI: constraints list end\n");
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free_acpi_buffer:
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ACPI_FREE(out_obj);
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}
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static void lpi_device_get_constraints(void)
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{
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union acpi_object *out_obj;
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int i;
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out_obj = acpi_evaluate_dsm_typed(lps0_device_handle, &lps0_dsm_guid,
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1, ACPI_LPS0_GET_DEVICE_CONSTRAINTS,
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NULL, ACPI_TYPE_PACKAGE);
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acpi_handle_debug(lps0_device_handle, "_DSM function 1 eval %s\n",
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out_obj ? "successful" : "failed");
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if (!out_obj)
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return;
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lpi_constraints_table = kcalloc(out_obj->package.count,
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sizeof(*lpi_constraints_table),
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GFP_KERNEL);
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if (!lpi_constraints_table)
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goto free_acpi_buffer;
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acpi_handle_debug(lps0_device_handle, "LPI: constraints list begin:\n");
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for (i = 0; i < out_obj->package.count; i++) {
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struct lpi_constraints *constraint;
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acpi_status status;
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union acpi_object *package = &out_obj->package.elements[i];
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struct lpi_device_info info = { };
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int package_count = 0, j;
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if (!package)
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continue;
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for (j = 0; j < package->package.count; ++j) {
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union acpi_object *element =
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&(package->package.elements[j]);
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switch (element->type) {
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case ACPI_TYPE_INTEGER:
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info.enabled = element->integer.value;
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break;
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case ACPI_TYPE_STRING:
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info.name = element->string.pointer;
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break;
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case ACPI_TYPE_PACKAGE:
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package_count = element->package.count;
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info.package = element->package.elements;
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break;
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}
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}
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if (!info.enabled || !info.package || !info.name)
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continue;
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constraint = &lpi_constraints_table[lpi_constraints_table_size];
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status = acpi_get_handle(NULL, info.name, &constraint->handle);
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if (ACPI_FAILURE(status))
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continue;
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acpi_handle_debug(lps0_device_handle,
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"index:%d Name:%s\n", i, info.name);
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constraint->min_dstate = -1;
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for (j = 0; j < package_count; ++j) {
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union acpi_object *info_obj = &info.package[j];
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union acpi_object *cnstr_pkg;
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union acpi_object *obj;
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struct lpi_device_constraint dev_info;
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switch (info_obj->type) {
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case ACPI_TYPE_INTEGER:
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/* version */
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break;
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case ACPI_TYPE_PACKAGE:
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if (info_obj->package.count < 2)
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break;
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cnstr_pkg = info_obj->package.elements;
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obj = &cnstr_pkg[0];
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dev_info.uid = obj->integer.value;
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obj = &cnstr_pkg[1];
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dev_info.min_dstate = obj->integer.value;
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acpi_handle_debug(lps0_device_handle,
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"uid:%d min_dstate:%s\n",
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dev_info.uid,
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acpi_power_state_string(dev_info.min_dstate));
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constraint->min_dstate = dev_info.min_dstate;
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break;
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}
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}
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if (constraint->min_dstate < 0) {
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acpi_handle_debug(lps0_device_handle,
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"Incomplete constraint defined\n");
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continue;
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}
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lpi_constraints_table_size++;
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}
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acpi_handle_debug(lps0_device_handle, "LPI: constraints list end\n");
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free_acpi_buffer:
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ACPI_FREE(out_obj);
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}
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static void lpi_check_constraints(void)
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{
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int i;
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for (i = 0; i < lpi_constraints_table_size; ++i) {
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acpi_handle handle = lpi_constraints_table[i].handle;
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struct acpi_device *adev = acpi_fetch_acpi_dev(handle);
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if (!adev)
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continue;
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acpi_handle_debug(handle,
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"LPI: required min power state:%s current power state:%s\n",
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acpi_power_state_string(lpi_constraints_table[i].min_dstate),
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acpi_power_state_string(adev->power.state));
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if (!adev->flags.power_manageable) {
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acpi_handle_info(handle, "LPI: Device not power manageable\n");
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lpi_constraints_table[i].handle = NULL;
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continue;
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}
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if (adev->power.state < lpi_constraints_table[i].min_dstate)
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acpi_handle_info(handle,
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"LPI: Constraint not met; min power state:%s current power state:%s\n",
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acpi_power_state_string(lpi_constraints_table[i].min_dstate),
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acpi_power_state_string(adev->power.state));
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}
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}
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static void acpi_sleep_run_lps0_dsm(unsigned int func, unsigned int func_mask, guid_t dsm_guid)
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{
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union acpi_object *out_obj;
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if (!(func_mask & (1 << func)))
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return;
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out_obj = acpi_evaluate_dsm(lps0_device_handle, &dsm_guid,
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rev_id, func, NULL);
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ACPI_FREE(out_obj);
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acpi_handle_debug(lps0_device_handle, "_DSM function %u evaluation %s\n",
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func, out_obj ? "successful" : "failed");
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}
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static bool acpi_s2idle_vendor_amd(void)
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{
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return boot_cpu_data.x86_vendor == X86_VENDOR_AMD;
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}
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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;
|
|
}
|
|
|
|
static int lps0_device_attach(struct acpi_device *adev,
|
|
const struct acpi_device_id *not_used)
|
|
{
|
|
if (lps0_device_handle)
|
|
return 0;
|
|
|
|
if (!(acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0))
|
|
return 0;
|
|
|
|
if (acpi_s2idle_vendor_amd()) {
|
|
/* AMD0004, AMD0005, AMDI0005:
|
|
* - Should use rev_id 0x0
|
|
* - function mask > 0x3: Should use AMD method, but has off by one bug
|
|
* - function mask = 0x3: Should use Microsoft method
|
|
* AMDI0006:
|
|
* - should use rev_id 0x0
|
|
* - function mask = 0x3: Should use Microsoft method
|
|
* AMDI0007:
|
|
* - Should use rev_id 0x2
|
|
* - Should only use AMD method
|
|
*/
|
|
const char *hid = acpi_device_hid(adev);
|
|
rev_id = strcmp(hid, "AMDI0007") ? 0 : 2;
|
|
lps0_dsm_func_mask = validate_dsm(adev->handle,
|
|
ACPI_LPS0_DSM_UUID_AMD, rev_id, &lps0_dsm_guid);
|
|
lps0_dsm_func_mask_microsoft = validate_dsm(adev->handle,
|
|
ACPI_LPS0_DSM_UUID_MICROSOFT, 0,
|
|
&lps0_dsm_guid_microsoft);
|
|
if (lps0_dsm_func_mask > 0x3 && (!strcmp(hid, "AMD0004") ||
|
|
!strcmp(hid, "AMD0005") ||
|
|
!strcmp(hid, "AMDI0005"))) {
|
|
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 && !strcmp(hid, "AMDI0007")) {
|
|
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 the default suspend mode was not
|
|
* set from the command line.
|
|
*/
|
|
if (mem_sleep_default > PM_SUSPEND_MEM && !acpi_sleep_default_s3)
|
|
mem_sleep_current = PM_SUSPEND_TO_IDLE;
|
|
|
|
/*
|
|
* 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) {
|
|
acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY,
|
|
lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
|
|
/* modern standby entry */
|
|
acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_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_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();
|
|
|
|
/* 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);
|
|
|
|
/* 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);
|
|
|
|
/* 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,
|
|
.wake = acpi_s2idle_wake,
|
|
.restore_early = acpi_s2idle_restore_early,
|
|
.restore = acpi_s2idle_restore,
|
|
.end = acpi_s2idle_end,
|
|
};
|
|
|
|
void 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)
|
|
{
|
|
if (!lps0_device_handle || sleep_no_lps0)
|
|
return -ENODEV;
|
|
|
|
lock_system_sleep();
|
|
list_add(&arg->list_node, &lps0_s2idle_devops_head);
|
|
unlock_system_sleep();
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(acpi_register_lps0_dev);
|
|
|
|
void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg)
|
|
{
|
|
if (!lps0_device_handle || sleep_no_lps0)
|
|
return;
|
|
|
|
lock_system_sleep();
|
|
list_del(&arg->list_node);
|
|
unlock_system_sleep();
|
|
}
|
|
EXPORT_SYMBOL_GPL(acpi_unregister_lps0_dev);
|
|
|
|
#endif /* CONFIG_SUSPEND */
|