- 15 Apr, 2024 4 commits
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Basavaraj Natikar authored
AMD MP2 STB function provides a data buffer used to log debug information about the system execution during S2Idle suspend/resume. A data buffer known as the STB (Smart Trace Buffer) is a circular buffer which is a low-level log to assist in debugging by providing insights into any potential hangs or stalls that may occur during the S2Idle suspend/resume processes. The current PMC driver retrieves STB data from MP1, but there can be scenarios where MP1 might hang or become unresponsive, leading to the loss of critical data present in the STB buffer. This defeats the purpose of the STB buffer, which was originally meant to help identify system failures. This feature creates stb_read_previous_boot debugfs allows users to retrieve the STB log from MP2 specifically from the last occurrence of the S2Idle suspend/resume. A userspace daemon can access STB log of last S2Idle suspend/resume which can help to troubleshoot potential issues related to hangs or stalls during the S2Idle suspend/resume sequence. Reviewed-by:
Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Signed-off-by:
Basavaraj Natikar <Basavaraj.Natikar@amd.com> Reviewed-by:
Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Link: https://lore.kernel.org/r/20240404090702.325838-1-Basavaraj.Natikar@amd.comSigned-off-by:
Hans de Goede <hdegoede@redhat.com>
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Gergo Koteles authored
Some Ideapad/Yoga Laptops have an FnLock LED in the Esc key. Expose Fnlock as an LED class device for easier OSD support. Signed-off-by:
Gergo Koteles <soyer@irl.hu> Reviewed-by:
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Gergo Koteles authored
The FnLock is retrieved and set in several places in the code. Move details into ideapad_fn_lock_get and ideapad_fn_lock_set functions. Signed-off-by:
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Gergo Koteles authored
Newer laptops have FnLock LED. Add a define for this very common function. Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by:
Lee Jones <lee@kernel.org> Reviewed-by:
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- 08 Apr, 2024 24 commits
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Luke D. Jones authored
Reorganises some attr-available calls to remove a few unrequired booleans in the main driver struct which combined with some reorganisation prevents a series of large holes seen with pahole. Reviewed-by:
Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by:
Luke D. Jones <luke@ljones.dev> Link: https://lore.kernel.org/r/20240404001652.86207-10-luke@ljones.devSigned-off-by:
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Luke D. Jones authored
Add support for an MCU powersave WMI call. This is intended to set the MCU in to a low-power mode when sleeping. This mode can cut sleep power use by around half. Reviewed-by:
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Luke D. Jones authored
The previous work to allow the MCU to be resumed correctly after sleep and resume tried to take the shortest possible time. However as work continues in various other parts of the s2idle subsystems it has shown that it wasn't entirely reliable. If the MCU disable/enable call is done correctly the MCU fully removes its USB endpoints, and this shows as a full USB device reconnection on resume. When we tried to short this as much as possible sometimes the MCU doesn't get to complete what it needs to do before going to low-power and this affected the reconnection. Through trial it is found that the minimum time required is approx 1200ms to allow a proper disconnect and disable, and the same amount of time on resume is required to prevent a rapid disconnect/reconnect happening on seemingly random occasions. To be safe the time is now 1500ms for msleep. Reviewed-by:
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Luke D. Jones authored
Shift the call to dev_get_drvdata() up to top of the function block in all of the ppt_<name>() functions as part of a minor cleanup. Reviewed-by:
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Luke D. Jones authored
Laptops with any of the ppt or nv tunables default to the minimum setting on boot so we can safely assume a stored value is correct. This patch adds storing of those values in the local struct, and enables reading of those values back. To prevent creating a series of byte holes in the struct the "<name>_available" bool is removed and `asus_sysfs_is_visible()` uses the `ASUS_WMI_DEVID_<name>` directly. Reviewed-by:
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Luke D. Jones authored
Add support for toggling the BIOS POST sound on some ASUS laptops. Reviewed-by:
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Luke D. Jones authored
Adds support for a second TUF RGB wmi call that some versions of the TUF laptop come with. Also adjusts existing support to select whichever is available. Reviewed-by:
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Luke D. Jones authored
Add support for the Vivobook dgpu MUX available on the ASUS Viviobook and some of the other ranges (Zen). This MUX functions exactly the same as the existing ROG MUX support so the existing functionality now detects which MUX is available and uses that for control. Reviewed-by:
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Luke D. Jones authored
Support the 2024 mini-led backlight and adjust the related functions to select the relevant dev-id. Also add `available_mini_led_mode` to the platform sysfs since the available mini-led levels can be different. Reviewed-by:
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Armin Wolf authored
Since 2010, an LWN article covering WMI drivers exists: https://lwn.net/Articles/391230/ Since the introduction of the modern bus-based interface and other userspace tooling (bmfdec, lswmi, ...), this article is outdated and causes people to still submit new WMI drivers using the deprecated GUID-based interface. Fix this by adding a short guide on how to develop WMI drivers using the modern bus-based interface. Signed-off-by:
Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20240402143059.8456-4-W_Armin@gmx.deReviewed-by:
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Armin Wolf authored
The WMI driver core already makes sure that: - a valid WMI device is passed to each callback - the notify() callback runs after the probe() callback succeeds Remove the unnecessary NULL checks. Compile-tested only. Signed-off-by:
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Armin Wolf authored
Multiple WMI events can be received concurrently, so multiple instances of xiaomi_wmi_notify() can be active at the same time. Since the input device is shared between those handlers, the key input sequence can be disturbed. Fix this by protecting the key input sequence with a mutex. Compile-tested only. Fixes: edb73f4f ("platform/x86: wmi: add Xiaomi WMI key driver") Signed-off-by:
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Armin Wolf authored
The inspur_platform_profile driver and the xiaomi-wmi driver both meet the requirements for modern WMI drivers, as they both do not use the legacy GUID-based interface and can be safely instantiated multiple times. Mark them both as legacy-free using the no_singleton flag. Compile-tested only. Reviewed-by:
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Maximilian Luz authored
The Surface Pro 9 has thermal sensors connected via the Surface Aggregator Module. Add a device node to support those. Signed-off-by:
Maximilian Luz <luzmaximilian@gmail.com> Link: https://lore.kernel.org/r/20240330112409.3402943-4-luzmaximilian@gmail.comReviewed-by:
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Hans de Goede authored
When logging the warning about receiving a button event on a device without buttons log the event code which triggered the warning. Signed-off-by:
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Armin Wolf authored
Since commit e2ffcda1 ("ACPI: OSL: Allow Notify () handlers to run on all CPUs"), the ACPI core allows multiple notify calls to be active at the same time. This means that two instances of quickstart_notify() running at the same time can mess which each others input sequences. Fix this by protecting the input sequence with a mutex. Compile-tested only. Fixes: afd66f2a739e ("platform/x86: Add ACPI quickstart button (PNP0C32) driver") Signed-off-by:
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Arnd Bergmann authored
The new driver Kconfig entry has a typo that causes a link failure when CONFIG_INPUT_SPARSEKMAP is disabled: x86_64-linux-ld: drivers/platform/x86/quickstart.o: in function `quickstart_notify': quickstart.c:(.text+0x96): undefined reference to `sparse_keymap_report_event' x86_64-linux-ld: drivers/platform/x86/quickstart.o: in function `quickstart_probe': quickstart.c:(.text+0x1da): undefined reference to `sparse_keymap_setup' Select this symbol instead of the incorrect INPUT_SPARSE_KEYMAP. Fixes: afd66f2a739e ("platform/x86: Add ACPI quickstart button (PNP0C32) driver") Signed-off-by:Arnd Bergmann <arnd@arndb.de> Reviewed-by:
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Andy Shevchenko authored
There is a mix of a few improvements to the driver. I have done this instead of review, so it can quickly be folded into the original code (partially or fully). Signed-off-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by:
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Krzysztof Kozlowski authored
Emails to Daniel Oliveira Nascimento bounce: "550 5.1.1 The email account that you tried to reach does not exist." Signed-off-by:
Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Link: https://lore.kernel.org/r/20240327081434.306106-1-krzysztof.kozlowski@linaro.orgSigned-off-by:
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Greg Kroah-Hartman authored
devm_device_add_groups() is being removed from the kernel, so move the hsmp driver to use device_add_groups() instead. The logic is identical, when the device is removed the driver core will properly clean up and remove the groups, and the memory used by the attribute groups will be freed because it was created with dev_* calls, so this is functionally identical overall. Cc: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com> Cc: Carlos Bilbao <carlos.bilbao@amd.com> Cc: Hans de Goede <hdegoede@redhat.com> Cc: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com> Cc: platform-driver-x86@vger.kernel.org Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by:
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Arvid Norlander authored
The Z830 has some buttons that will only work properly as "quickstart" buttons. To enable them in that mode, a value between 1 and 7 must be used for HCI_HOTKEY_EVENT. Windows uses 0x5 on this laptop so use that for maximum predictability and compatibility. As there is not yet a known way of auto detection, this patch uses a DMI quirk table. A module parameter is exposed to allow setting this on other models for testing. Signed-off-by:
Arvid Norlander <lkml@vorpal.se> Tested-by:
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Armin Wolf authored
This drivers supports the ACPI quickstart button device, which is used to send manufacturer-specific events to userspace. Since the meaning of those events is not standardized, userspace has to use for example hwdb to decode them. The driver itself is based on an earlier proposal, but contains some improvements and uses the device wakeup API instead of a custom sysfs file. Signed-off-by:
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Kate Hsuan authored
There is a KTD2026 LED controller to manage the indicator LED for Xiaomi pad2. The ACPI for it is not properly made so the kernel can't get a correct description of it. This work adds a description for this RGB LED controller and also sets a trigger to indicate the charging event (bq27520-0-charging). When it is charging, the indicator LED will be turned on. Signed-off-by:
Kate Hsuan <hpa@redhat.com> Link: https://lore.kernel.org/r/20240322033736.9344-2-hpa@redhat.comReviewed-by:
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Ai Chao authored
Add lenovo WMI camera button driver to support camera button. The Camera button is a GPIO device. This driver receives ACPI notifications when the camera button is switched on/off. This driver is used in Lenovo A70, it is a Computer integrated machine. Signed-off-by:
Ai Chao <aichao@kylinos.cn> Link: https://lore.kernel.org/r/20240327082737.336992-1-aichao@kylinos.cnReviewed-by:
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- 25 Mar, 2024 12 commits
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Ivor Wanders authored
Change naming from tmp to platform profile to clarify the module may interact with both the TMP and FAN subystems. Add functionality that switches the fan profile when the platform profile is changed when a fan is present. Signed-off-by:
Ivor Wanders <ivor@iwanders.net> Link: https://github.com/linux-surface/kernel/pull/145Reviewed-by:
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Armin Wolf authored
If an error code other than EINVAL, ENODEV or ETIME is returned by ec_read()/ec_write(), then AE_OK is wrongly returned. Fix this by only returning AE_OK if the return code is 0, and return AE_ERROR otherwise. Tested on a Dell Inspiron 3505 and a Asus Prime B650-Plus. Reviewed-by:
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Armin Wolf authored
The ACPI EC address space handler currently only supports reading/writing 8 bit values. Some firmware implementations however want to access for example 16 bit values, which is perfectly legal according to the ACPI spec. Add support for reading/writing such values. Tested on a Dell Inspiron 3505 and a Asus Prime B650-Plus. Reviewed-by:
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Nikita Travkin authored
The laptop contains an embedded controller that provides a set of features: - Battery and charger monitoring - USB Type-C DP alt mode HPD monitoring - Lid status detection - Small amount of keyboard configuration* [*] The keyboard is handled by the same EC but it has a dedicated i2c bus and is already enabled. This port only provides fn key behavior configuration. Add the EC to the device tree and describe the relationship between the EC-managed type-c port and the SoC DisplayPort. Reviewed-by:
Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by:
Nikita Travkin <nikita@trvn.ru> Link: https://lore.kernel.org/r/20240315-aspire1-ec-v5-4-f93381deff39@trvn.ruSigned-off-by:
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Nikita Travkin authored
Acer Aspire 1 is a Snapdragon 7c based laptop. It uses an embedded controller to perform a set of various functions, such as: - Battery and charger monitoring; - Keyboard layout control (i.e. fn_lock settings); - USB Type-C DP alt mode HPD notifications; - Laptop lid status. Unfortunately, while all this functionality is implemented in ACPI, it's currently not possible to use ACPI to boot Linux on such Qualcomm devices. To allow Linux to still support the features provided by EC, this driver reimplments the relevant ACPI parts. This allows us to boot the laptop with Device Tree and retain all the features. Reviewed-by:
Bryan O'Donoghue <bryan.odonoghue@linaro.org> Signed-off-by:
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Nikita Travkin authored
Some ARM64 based laptops and computers require vendor/board specific drivers for their embedded controllers. Even though usually the most important functionality of those devices is implemented inside ACPI, unfortunately Linux doesn't currently have great support for ACPI on platforms like Qualcomm Snapdragon that are used in most ARM64 laptops today. Instead Linux relies on Device Tree for Qualcomm based devices and it's significantly easier to reimplement the EC functionality in a dedicated driver than to make use of ACPI code. This commit introduces a new platform/arm64 subdirectory to give a place to such drivers for EC-like devices. A new MAINTAINERS entry is added for this directory. Patches to files in this directory will be taken up by the platform-drivers-x86 team (i.e. Hans de Goede and Ilpo Järvinen) with additional review from Bryan O'Donoghue to represent ARM64 maintainers. Signed-off-by:
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Nikita Travkin authored
Add binding for the EC found in the Acer Aspire 1 laptop. Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Ai Chao authored
Follow the advice in Documentation/filesystems/sysfs.rst: show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by:
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Ai Chao authored
Follow the advice in Documentation/filesystems/sysfs.rst: show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by:
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Ai Chao authored
This changes all *_show attributes in asus-wmi.c to use sysfs_emit() instead of the older method of writing to the output buffer manually. Follow the advice in Documentation/filesystems/sysfs.rst: show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by:
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Ai Chao authored
Follow the advice in Documentation/filesystems/sysfs.rst: show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. Signed-off-by:
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Hans de Goede authored
p2sb_get_devfn() always succeeds, make it return void and remove error checking from its callers. Reviewed-by:
Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> Signed-off-by:
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