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Add lock to protect user read/write access to the registers.
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20220711084559.62447-8-vadimp@nvidia.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Extend COME CPLD with board configuration register for getting board
revision. The value of this register is pushed by hardware through GPIO
pins.
The purpose of it is to expose some minor BOM changes.
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Oleksandr Shamray <oleksandrs@nvidia.com>
Link: https://lore.kernel.org/r/20220711084559.62447-7-vadimp@nvidia.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Add support for new system type XH3000, which is a water cooling
Ethernet switch blade equipped with 32x200G Ethernet ports.
The system is recognized by "DMI_BOARD_NAME" and "DMI_PRODUCT_SKU" matches,
when these fields are set to "VMOD0005" and "HI139" respectively.
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Felix Radensky <fradensky@nvidia.com>
Link: https://lore.kernel.org/r/20220711084559.62447-6-vadimp@nvidia.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The Vulcan is chassis containing Nvidia's Hopper dGPU (GH100), NVswitch
(LS10) based HGX baseboard and COMe NVSwitch management module.
The system is built for artificial intelligence and accelerated
analytics applications. Vulcan is offered as an HGX product to cloud
service providers and OEMs, who intend to build fully interconnected
GPU systems for large scale deployments.
Driver is extended to support new COMe NVSwitch management module.
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Oleksandr Shamray <oleksandrs@nvidia.com>
Link: https://lore.kernel.org/r/20220711084559.62447-5-vadimp@nvidia.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Motivation is to support new systems equipped with two ASICs.
Extend driver with:
- The second ASIC health event.
- Per ASIC reset control, triggering reset of ASIC internal resources
and restarting ASIC initialization flow.
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Oleksandr Shamray <oleksandrs@nvidia.com>
Link: https://lore.kernel.org/r/20220711084559.62447-4-vadimp@nvidia.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Align the first argument with open parenthesis for
platform_device_register_resndata() calls.
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Oleksandr Shamray <oleksandrs@nvidia.com>
Link: https://lore.kernel.org/r/20220711084559.62447-3-vadimp@nvidia.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Current assumption in driver that any system is capable of LED,
hotplug or watchdog support. It could be not true for some new coming
systems.
Add validation for LED, hotplug, watchdog configuration and skip
activation of relevant drivers if not configured.
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Oleksandr Shamray <oleksandrs@nvidia.com>
Link: https://lore.kernel.org/r/20220711084559.62447-2-vadimp@nvidia.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
In some new ASUS devices, hotkey Fn+F13 is used for mic mute. If mic-mute
LED is present by checking WMI ASUS_WMI_DEVID_MICMUTE_LED, we will add a
mic-mute LED classdev, asus::micmute, in the asus-wmi driver to control
it. The binding of mic-mute LED controls will be swithched with LED
trigger.
Signed-off-by: PaddyKP_Yao <PaddyKP_Yao@asus.com>
Link: https://lore.kernel.org/r/20220711115125.2072508-1-PaddyKP_Yao@asus.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
On Apollo Lake the pinctrl drivers will now come up without ACPI. Use
that instead of open coding it.
Create a new driver for that which can later be filled with more GPIO
based models, and which has different dependencies.
Signed-off-by: Henning Schild <henning.schild@siemens.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee@kernel.org>
The two drivers that used to use this have been switched over to the
common P2SB accessor, so this code is not needed any longer.
Signed-off-by: Henning Schild <henning.schild@siemens.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Since we have a common P2SB accessor in tree we may use it instead of
open coded variants.
Replace custom code by p2sb_bar() call.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Henning Schild <henning.schild@siemens.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
SoC features such as GPIO are accessed via a reserved MMIO area,
we don't know its address but can obtain it from the BAR of
the P2SB device, that device is normally hidden so we have to
temporarily unhide it, read address and hide it back.
There are already a few users and at least one more is coming which
require an access to Primary to Sideband (P2SB) bridge in order
to get IO or MMIO BAR hidden by BIOS.
Create a library to access P2SB for x86 devices in a unified way.
Background information
======================
Note, the term "bridge" is used in the documentation and it has nothing
to do with a PCI (host) bridge as per the PCI specifications.
The P2SB is an interesting device by its nature and hardware design.
First of all, it has several devices in the hardware behind it. These
devices may or may not be represented as ACPI devices by a firmware.
It also has a hardwired (to 0s) the least significant bits of the
base address register which is represented by the only 64-bit BAR0.
It means that OS mustn't reallocate the BAR.
On top of that in some cases P2SB is represented by function 0 on PCI
slot (in terms of B:D.F) and according to the PCI specification any
other function can't be seen until function 0 is present and visible.
In the PCI configuration space of P2SB device the full 32-bit register
is allocated for the only purpose of hiding the entire P2SB device. As
per [3]:
3.1.39 P2SB Control (P2SBC)—Offset E0h
Hide Device (HIDE): When this bit is set, the P2SB will return 1s on
any PCI Configuration Read on IOSF-P. All other transactions including
PCI Configuration Writes on IOSF-P are unaffected by this. This does
not affect reads performed on the IOSF-SB interface.
This doesn't prevent MMIO accesses, although preventing the OS from
assigning these addresses. The firmware on the affected platforms marks
the region as unusable (by cutting it off from the PCI host bridge
resources) as depicted in the Apollo Lake example below:
PCI host bridge to bus 0000:00
pci_bus 0000:00: root bus resource [io 0x0070-0x0077]
pci_bus 0000:00: root bus resource [io 0x0000-0x006f window]
pci_bus 0000:00: root bus resource [io 0x0078-0x0cf7 window]
pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
pci_bus 0000:00: root bus resource [mem 0x7c000001-0x7fffffff window]
pci_bus 0000:00: root bus resource [mem 0x7b800001-0x7bffffff window]
pci_bus 0000:00: root bus resource [mem 0x80000000-0xcfffffff window]
pci_bus 0000:00: root bus resource [mem 0xe0000000-0xefffffff window]
pci_bus 0000:00: root bus resource [bus 00-ff]
The P2SB 16MB BAR is located at 0xd0000000-0xd0ffffff memory window.
The generic solution
====================
The generic solution for all cases when we need to access to the information
behind P2SB device is a library code where users ask for necessary resources
by demand and hence those users take care of not being run on the systems
where this access is not required.
The library provides the p2sb_bar() API to retrieve the MMIO of the BAR0 of
the device from P2SB device slot.
P2SB unconditional unhiding awareness
=====================================
Technically it's possible to unhide the P2SB device and devices on
the same PCI slot and access them at any time as needed. But there are
several potential issues with that:
- the systems were never tested against such configuration and hence
nobody knows what kind of bugs it may bring, especially when we talk
about SPI NOR case which contains Intel FirmWare Image (IFWI) code
(including BIOS) and already known to be problematic in the past for
end users
- the PCI by its nature is a hotpluggable bus and in case somebody
attaches a driver to the functions of a P2SB slot device(s) the
end user experience and system behaviour can be unpredictable
- the kernel code would need some ugly hacks (or code looking as an
ugly hack) under arch/x86/pci in order to enable these devices on
only selected platforms (which may include CPU ID table followed by
a potentially growing number of DMI strings
The future improvements
=======================
The future improvements with this code may go in order to gain some kind
of cache, if it's possible at all, to prevent unhiding and hiding many
times to take static information that may be saved once per boot.
Links
=====
[1]: https://lab.whitequark.org/notes/2017-11-08/accessing-intel-ich-pch-gpios/
[2]: https://cdrdv2.intel.com/v1/dl/getContent/332690?wapkw=332690
[3]: https://cdrdv2.intel.com/v1/dl/getContent/332691?wapkw=332691
[4]: https://medium.com/@jacksonchen_43335/bios-gpio-p2sb-70e9b829b403
Signed-off-by: Jonathan Yong <jonathan.yong@intel.com>
Co-developed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Henning Schild <henning.schild@siemens.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
The typec_register_port() can fail with EPROBE_DEFER if the endpoint
node hasn't probed yet. In order to avoid spamming the log with errors
in that case, log using dev_err_probe().
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220712214554.545035-1-nfraprado@collabora.com
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Like the Asus T100TA the Asus T100TAF has a camera LED which is always
on by default and both also use the same GPIO for the LED.
Relax the DMI match for the Asus T100TA so that it also matches
the T100TAF.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220710173658.221528-1-hdegoede@redhat.com
Like the Asus T100TA the Asus T100TAF has a camera LED which is always
on by default and both also use the same GPIO for the LED.
Relax the DMI match for the Asus T100TA so that it also matches
the T100TAF.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220710173658.221528-1-hdegoede@redhat.com
It's easier to maintain the sorted table.
Keep the sorting order in sync with one in drivers/acpi/scan.c.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220709211653.18938-6-andriy.shevchenko@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
In the snippets like the following
if (...)
return / goto / break / continue ...;
else
...
the 'else' is redundant. Get rid of it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220709211653.18938-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Drop duplicate print of returned value in the messages and use pattern
return dev_err_probe(...) where it's possible.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220709211653.18938-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The device_get_match_data() checks for firmware node to be present,
there is no need to check for ACPI companion.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220709211653.18938-2-andriy.shevchenko@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Instead of calling specific resource counter, let just probe each
of the type and see what it says. Return -ENOENT if no resources
found.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220709211653.18938-1-andriy.shevchenko@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
On laptops like ASUS TUF Gaming A15, which have hotkeys to start Armoury
Crate or AURA Sync, these hotkeys are unavailable. This patch add
mappings for them.
Signed-off-by: Misaka19465 <misaka19465@olddoctor.net>
Link: https://lore.kernel.org/r/20220710113727.281634-1-misaka19465@olddoctor.net
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Commit 98f30d0ecf79 ("ACPI: power: Switch to sys-off handler API")
switched the ACPI sleep code from directly setting the old global
pm_power_off handler to using the new register_sys_off_handler()
mechanism with a priority of SYS_OFF_PRIO_FIRMWARE.
This is a problem in special cases where the old global pm_power_off
handler later gets overwritten, such as the Lenovo Tab2 poweroff bugfix
in x86-android-tablets. The old global pm_power_off handler gets run
with a priority of SYS_OFF_PRIO_DEFAULT which is lower then
SYS_OFF_PRIO_FIRMWARE, causing the troublesome ACPI poweroff (which
freezes the system) to run first.
Switch the registering of lenovo_yoga_tab2_830_1050_power_off over to
register_sys_off_handler() with a priority of SYS_OFF_PRIO_FIRMWARE + 1
so that it will run before acpi_power_off() to fix this.
Fixes: 98f30d0ecf79 ("ACPI: power: Switch to sys-off handler API")
Cc: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220708131412.81078-2-hdegoede@redhat.com
PMC driver can be supported on a new upcoming platform.
Add this information to the support list.
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20220630050324.3780654-2-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
New version of PMC controller will have a separate ACPI id, add that
to the support list.
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20220630050324.3780654-1-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
On laptops like ASUS TUF Gaming A15, which have hotkeys to start Armoury
Crate or AURA Sync, these hotkeys are unavailable. This patch add
mappings for them.
Signed-off-by: Misaka19465 <misaka19465@olddoctor.net>
Link: https://lore.kernel.org/r/20220710113727.281634-1-misaka19465@olddoctor.net
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Commit 98f30d0ecf79 ("ACPI: power: Switch to sys-off handler API")
switched the ACPI sleep code from directly setting the old global
pm_power_off handler to using the new register_sys_off_handler()
mechanism with a priority of SYS_OFF_PRIO_FIRMWARE.
This is a problem in special cases where the old global pm_power_off
handler later gets overwritten, such as the Lenovo Tab2 poweroff bugfix
in x86-android-tablets. The old global pm_power_off handler gets run
with a priority of SYS_OFF_PRIO_DEFAULT which is lower then
SYS_OFF_PRIO_FIRMWARE, causing the troublesome ACPI poweroff (which
freezes the system) to run first.
Switch the registering of lenovo_yoga_tab2_830_1050_power_off over to
register_sys_off_handler() with a priority of SYS_OFF_PRIO_FIRMWARE + 1
so that it will run before acpi_power_off() to fix this.
Fixes: 98f30d0ecf79 ("ACPI: power: Switch to sys-off handler API")
Cc: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220708131412.81078-2-hdegoede@redhat.com
PMC driver can be supported on a new upcoming platform.
Add this information to the support list.
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20220630050324.3780654-2-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
New version of PMC controller will have a separate ACPI id, add that
to the support list.
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20220630050324.3780654-1-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Add PCI error recovery support for Intel PMT driver to recover
from PCI fatal errors
Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com>
Cc: David E Box <david.e.box@intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kammela@linux.intel.com>
Link: https://lore.kernel.org/r/20220629221334.434307-5-gayatri.kammela@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Use the telem_type and the fixed block guid to determine if an entry is a
fixed region. For certain platforms we don't support this.
Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com>
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kammela@linux.intel.com>
Link: https://lore.kernel.org/r/20220629221334.434307-4-gayatri.kammela@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Add Raptor Lake support to Intel's PMT driver.
Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com>
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kammela@linux.intel.com>
Link: https://lore.kernel.org/r/20220629221334.434307-3-gayatri.kammela@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
In the Intel VSEC PCI driver, use a new VSEC_QUIRK_EARLY_HW flag in
driver_data to indicate the need for early hardware quirks in
auxiliary devices. Remove the separate PCI ID list maintained by the
Intel PMT auxiliary driver.
Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com>
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kammela@linux.intel.com>
Link: https://lore.kernel.org/r/20220629221334.434307-2-gayatri.kammela@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
On a multiple package system using Sub-NUMA clustering, there is an issue
in mapping Linux CPU number to PUNIT PCI device when manufacturer decided
to reuse the PCI bus number across packages. Bus number can be reused as
long as they are in different domain or segment. In this case some CPU
will fail to find a PCI device to issue SST requests.
When bus numbers are reused across CPU packages, we are using proximity
information by matching CPU numa node id to PUNIT PCI device numa node
id. But on a package there can be only one PUNIT PCI device, but multiple
numa nodes (one for each sub cluster). So, the numa node ID of the PUNIT
PCI device can only match with one numa node id of CPUs in a sub cluster
in the package.
Since there can be only one PUNIT PCI device per package, if we match
with numa node id of any sub cluster in that package, we can use that
mapping for any CPU in that package. So, store the match information
in a per package data structure and return the information when there
is no match.
While here, use defines for max bus number instead of hardcoding.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20220629194817.2418240-1-srinivas.pandruvada@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Update the copyright of various Surface drivers to the current year.
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20220624205800.1355621-4-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Split out subsystem device hub drivers into their own module. This
allows us to load the hub drivers separately from the registry, which
will help future DT/OF support.
While doing so, also remove a small bit of code duplication.
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20220624205800.1355621-3-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Move helper functions for client device registration to the core module.
This simplifies addition of future DT/OF support and also allows us to
split out the device hub drivers into their own module.
At the same time, also improve device node validation a bit by not
silently skipping devices with invalid device UID specifiers. Further,
ensure proper lifetime management for the firmware/software nodes
associated with the added devices.
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20220624205800.1355621-2-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Add a POS subsystem tablet-mode switch device for the Surface Laptop
Studio. The respective driver for this device provides SW_TABLET_MODE
input events for user-space based on the posture of the screen.
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20220624183642.910893-5-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Add a KIP subsystem tablet-mode switch device for the Surface Pro 8.
The respective driver for this device provides SW_TABLET_MODE input
events for user-space based on the state of the keyboard cover (e.g.
detached, folded-back, normal/laptop mode).
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20220624183642.910893-4-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Add a driver providing a tablet-mode switch input device for Microsoft
Surface devices using the Surface Aggregator KIP subsystem (to manage
detachable peripherals) or POS subsystem (to obtain device posture
information).
The KIP (full name unknown, abbreviation found through reverse
engineering) subsystem is used on the Surface Pro 8 and Surface Pro X to
manage the keyboard cover. Among other things, it provides information
on the positioning (posture) of the cover (closed, laptop-style,
detached, folded-back, ...), which can be used to implement an input
device providing the SW_TABLET_MODE event. Similarly, the POS (posture
information) subsystem provides such information on the Surface Laptop
Studio, with the difference being that the keyboard is not detachable.
As implementing the tablet-mode switch for both subsystems is largely
similar, the driver proposed in this commit, in large, acts as a generic
tablet mode switch driver framework for the Surface Aggregator Module.
Specific implementations using this framework are provided for the KIP
and POS subsystems, adding tablet-mode switch support to the
aforementioned devices.
A few more notes on the Surface Laptop Studio:
A peculiarity of the Surface Laptop Studio is its "slate/tent" mode
(symbolized: user> _/\). In this mode, the screen covers the keyboard
but leaves the touchpad exposed. This is essentially a mode in-between
tablet and laptop, and it is debatable whether tablet-mode should be
enabled in this mode. We therefore let the user decide this via a module
parameter.
In particular, tablet-mode may bring up the on-screen touch keyboard
more easily, which would be desirable in this mode. However, some
user-space software currently also decides to disable keyboard and, more
importantly, touchpad input, while the touchpad is still accessible in
the "slate/tent" mode. Furthermore, this mode shares its identifier with
"slate/flipped" mode where the screen is flipped 180° and the keyboard
points away from the user (symbolized: user> /_). In this mode we would
like to enable auto-rotation, something that user-space software may
only do when tablet-mode is enabled. We therefore default to the
slate-mode enabling the tablet-mode switch.
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20220624183642.910893-3-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Highlights:
- thinkpad_acpi/ideapad-laptop: mem-leak and platform-profile fixes
- panasonic-laptop: missing hotkey presses regression fix
- some hardware-id additions
- some other small fixes
The following is an automated git shortlog grouped by driver:
ACPI:
- video: Change how we determine if brightness key-presses are handled
hp-wmi:
- Ignore Sanitization Mode event
ideapad-laptop:
- Add Ideapad 5 15ITL05 to ideapad_dytc_v4_allow_table[]
- Add allow_v4_dytc module parameter
intel/pmc:
- Add Alder Lake N support to PMC core driver
panasonic-laptop:
- filter out duplicate volume up/down/mute keypresses
- don't report duplicate brightness key-presses
- revert "Resolve hotkey double trigger bug"
- sort includes alphabetically
- de-obfuscate button codes
platform/mellanox:
- nvsw-sn2201: fix error code in nvsw_sn2201_create_static_devices()
thinkpad_acpi:
- profile capabilities as integer
- do not use PSC mode on Intel platforms
- Fix a memory leak of EFCH MMIO resource
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Merge tag 'platform-drivers-x86-v5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
- thinkpad_acpi/ideapad-laptop: mem-leak and platform-profile fixes
- panasonic-laptop: missing hotkey presses regression fix
- some hardware-id additions
- some other small fixes
* tag 'platform-drivers-x86-v5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: hp-wmi: Ignore Sanitization Mode event
platform/x86: thinkpad_acpi: do not use PSC mode on Intel platforms
platform/x86: thinkpad-acpi: profile capabilities as integer
platform/x86: panasonic-laptop: filter out duplicate volume up/down/mute keypresses
platform/x86: panasonic-laptop: don't report duplicate brightness key-presses
platform/x86: panasonic-laptop: revert "Resolve hotkey double trigger bug"
platform/x86: panasonic-laptop: sort includes alphabetically
platform/x86: panasonic-laptop: de-obfuscate button codes
ACPI: video: Change how we determine if brightness key-presses are handled
platform/x86: ideapad-laptop: Add Ideapad 5 15ITL05 to ideapad_dytc_v4_allow_table[]
platform/x86: ideapad-laptop: Add allow_v4_dytc module parameter
platform/x86: thinkpad_acpi: Fix a memory leak of EFCH MMIO resource
platform/mellanox: nvsw-sn2201: fix error code in nvsw_sn2201_create_static_devices()
platform/x86: intel/pmc: Add Alder Lake N support to PMC core driver
After system resume the hp-wmi driver may complain:
[ 702.620180] hp_wmi: Unknown event_id - 23 - 0x0
According to HP it means 'Sanitization Mode' and it's harmless to just
ignore the event.
Cc: Jorge Lopez <jorge.lopez2@hp.com>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20220628123726.250062-1-kai.heng.feng@canonical.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
PSC platform profile mode is only supported on Linux for AMD platforms.
Some older Intel platforms (e.g T490) are advertising it's capability
as Windows uses it - but on Linux we should only be using MMC profile
for Intel systems.
Add a check to prevent it being enabled incorrectly.
Signed-off-by: Mark Pearson <markpearson@lenovo.com>
Link: https://lore.kernel.org/r/20220627181449.3537-1-markpearson@lenovo.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Currently the active mode (PSC/MMC) is stored in an enum and queried
throughout the driver.
Other driver changes will enumerate additional submodes that are relevant
to be tracked, so instead track PSC/MMC in a single integer variable.
Co-developed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mark Pearson <markpearson@lenovo.com>
Link: https://lore.kernel.org/r/20220603170212.164963-1-markpearson@lenovo.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
After system resume the hp-wmi driver may complain:
[ 702.620180] hp_wmi: Unknown event_id - 23 - 0x0
According to HP it means 'Sanitization Mode' and it's harmless to just
ignore the event.
Cc: Jorge Lopez <jorge.lopez2@hp.com>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20220628123726.250062-1-kai.heng.feng@canonical.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
PSC platform profile mode is only supported on Linux for AMD platforms.
Some older Intel platforms (e.g T490) are advertising it's capability
as Windows uses it - but on Linux we should only be using MMC profile
for Intel systems.
Add a check to prevent it being enabled incorrectly.
Signed-off-by: Mark Pearson <markpearson@lenovo.com>
Link: https://lore.kernel.org/r/20220627181449.3537-1-markpearson@lenovo.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
