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After looking at the ACPI AML code, it seems that the command 0x0000
used with ACER_WMID_GET_GAMING_SYS_INFO_METHODID returns a bitmap of
all supported sensor indices available through the 0x0001 command.
Those sensor indices seem to include both temperature and fan speed
sensors, with only the fan speed sensors being currently supported.
Use the output of this new command to implement reliable sensor
detection. This fixes detection of fans which do not spin during
probe, as fans are currently being ignored if their speed is 0.
Also add support for the new temperature sensor ids.
Tested-by: Rayan Margham <rayanmargham4@gmail.com>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20241210001657.3362-5-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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information
If a call to ACER_WMID_GET_GAMING_SYS_INFO_METHODID fails, the lower
8 bits will be non-zero. Introduce a helper function to check this and
use it when reading gaming system information.
Tested-by: Rayan Margham <rayanmargham4@gmail.com>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20241210001657.3362-4-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Rename ACER_CAP_FAN_SPEED_READ to ACER_CAP_HWMON to prepare for
upcoming changes in the hwmon handling code.
Tested-by: Rayan Margham <rayanmargham4@gmail.com>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20241210001657.3362-3-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Add the Acer Predator PT14-51 to acer_quirks to provide support
for the turbo button and predator_v4 hwmon interface.
Reported-by: Rayan Margham <rayanmargham4@gmail.com>
Closes: https://lore.kernel.org/platform-driver-x86/CACzB==6tUsCnr5musVMz-EymjTUCJfNtKzhMFYqMRU_h=kydXA@mail.gmail.com
Tested-by: Rayan Margham <rayanmargham4@gmail.com>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20241210001657.3362-2-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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When drivers access P2SB device resources, it calls p2sb_bar(). Before
the commit 5913320eb0b3 ("platform/x86: p2sb: Allow p2sb_bar() calls
during PCI device probe"), p2sb_bar() obtained the resources and then
called pci_stop_and_remove_bus_device() for clean up. Then the P2SB
device disappeared. The commit 5913320eb0b3 introduced the P2SB device
resource cache feature in the boot process. During the resource cache,
pci_stop_and_remove_bus_device() is called for the P2SB device, then the
P2SB device disappears regardless of whether p2sb_bar() is called or
not. Such P2SB device disappearance caused a confusion [1]. To avoid the
confusion, avoid the pci_stop_and_remove_bus_device() call when the BIOS
does not hide the P2SB device.
For that purpose, cache the P2SB device resources only if the BIOS hides
the P2SB device. Call p2sb_scan_and_cache() only if p2sb_hidden_by_bios
is true. This allows removing two branches from p2sb_scan_and_cache().
When p2sb_bar() is called, get the resources from the cache if the P2SB
device is hidden. Otherwise, read the resources from the unhidden P2SB
device.
Reported-by: Daniel Walker (danielwa) <danielwa@cisco.com>
Closes: https://lore.kernel.org/lkml/ZzTI+biIUTvFT6NC@goliath/ [1]
Fixes: 5913320eb0b3 ("platform/x86: p2sb: Allow p2sb_bar() calls during PCI device probe")
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241128002836.373745-5-shinichiro.kawasaki@wdc.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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To prepare for the following fix, move the code to hide and unhide the
P2SB device from p2sb_cache_resources() to p2sb_scan_and_cache().
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241128002836.373745-4-shinichiro.kawasaki@wdc.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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To prepare for the following fix, introduce the global flag
p2sb_hidden_by_bios. Check if the BIOS hides the P2SB device and store
the result in the flag. This allows to refer to the check result across
functions.
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241128002836.373745-3-shinichiro.kawasaki@wdc.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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To prepare for the following fix, factor out the code to read the P2SB
resource from the cache to the new function p2sb_read_from_cache().
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241128002836.373745-2-shinichiro.kawasaki@wdc.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Adds support to Alienware m16 R1 AMD.
Tested-by: Cihan Ozakca <cozakca@outlook.com>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20241208003013.6490-3-kuurtb@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Devices that are known to support the WMI thermal interface do not
support the legacy LED control interface. Make `.num_zones = 0` and
avoid calling alienware_zone_init() if that's the case.
Fixes: 9f6c43041552 ("alienware-wmi: added platform profile support")
Fixes: 1c1eb70e7d23 ("alienware-wmi: extends the list of supported models")
Suggested-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://lore.kernel.org/r/20241208002652.5885-4-kuurtb@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Debug log the sensor name to make it easier to figure out which INT3472
device is associated with which sensor.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241209220522.25288-4-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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The INT3472 code never wants a copy of the ACPI resource to be added
to the list-head passed to acpi_dev_get_resources().
Make skl_int3472_handle_gpio_resources() always return -errno or 1.
Also update the inaccurate comment about the return value.
skl_int3472_handle_gpio_resources() was already returning 1 in the case
of not a GPIO resource or invalid _DSM return and not -EINVAL / -ENODEV
as the comment claimed.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241209220522.25288-3-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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It seems that Windows is only using the ACPI GPIO resources and never
looks at the part of the _DSM return value which encodes the pin number.
For example on a Terra Pad 1262 v2 the following messages are printend:
int3472-discrete INT3472:01: reset \_SB.GPI0 pin number mismatch _DSM 103 resource 359
int3472-discrete INT3472:01: powerdown \_SB.GPI0 pin number mismatch _DSM 207 resource 335
int3472-discrete INT3472:02: reset \_SB.GPI0 pin number mismatch _DSM 101 resource 357
Notice for the 2 reset pins that the _DSM value is off by 256, this is
caused by there only being 8 bits reserved in the _DSM return value for
the pin-number.
As for the powerdown pin, testing has shown that the pin-number 335 from
the ACPI GPIO resource is correct and the _DSM value is bogus.
Lower the warning about these mismatches to a debug message and only
look at the lower 8 bits of the GPIO resource pin numbers.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241209220522.25288-2-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Not all devices have an ACPI companion fwnode, so adev might be NULL. This
can e.g. (theoretically) happen when a user manually binds one of
the int3472 drivers to another i2c/platform device through sysfs.
Add a check for adev not being set and return -ENODEV in that case to
avoid a possible NULL pointer deref in skl_int3472_get_acpi_buffer().
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241209220522.25288-1-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Commit 6c846d026d49 ("gpio: Don't fiddle with irqchips marked as
immutable") added a warning to indicate if the gpiolib is altering the
internals of irqchips:
gpio gpiochip4: (INT0002 Virtual GPIO): not an immutable chip, please consider fixing it!
Fix this by making the irqchip in the int0002_vgpio driver immutable.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20241204143807.32966-1-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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The Vexia EDU ATLA 10 tablet has an embedded controller instead of
giving the os direct access to the charger + fuel-gauge ICs as is normal
on tablets designed for Android.
There is ACPI Battery device in the DSDT using the EC which should work
except that it expects the I2C controller to be enumerated as an ACPI
device and the tablet's BIOS enumerates all LPSS devices as PCI devices
(and changing the LPSS BIOS settings from PCI -> ACPI does not work).
Add a power_supply class driver for the Atla 10 EC to expert battery info
to userspace. This is made part of the x86-android-tablets directory and
Kconfig option because the i2c_client it binds to is instantiated by
the x86-android-tablets kmod.
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241204193442.65374-3-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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On some Android tablets with Crystal Cove PMIC the DSDT lacks an ACPI AC
device to indicate whether a charger is plugged in or not.
Add support for registering a "crystal_cove_pwrsrc" power_supply class
device to indicate charger online status. This is made conditional on
a "linux,register-pwrsrc-power_supply" boolean device-property to avoid
registering a duplicate power_supply class device on devices where this
is already handled by an ACPI AC device.
Note the "linux,register-pwrsrc-power_supply" property is only used on
x86/ACPI (non devicetree) devs and the devicetree-bindings maintainers
have requested properties like these to not be added to the devicetree
bindings, so the new property is deliberately not added to any bindings.
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241204193442.65374-2-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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The UART used for the Bluetooth HCI on the Vexia EDU ATLA 10 is enumerated
as a PCI device, but the ODBA7823 ACPI fwnode for the HCI expects it to
use the more standard ACPI enumeration mode.
So Bluetooth does not work out of the box. Add x86_serdev_info to make
the x86-android-tablets manually associate the fwnode with the UART.
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241204204227.95757-9-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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by PCI parent
On the Vexia EDU ATLA 10 tablet, which ships with Android + a custom Linux
(guadalinex) using the custom Android kernel the UART controllers are not
enumerated as ACPI devices as they typically are.
Instead they are enumerated through PCI and getting the serdev-controller
by ACPI HID + UID does not work.
Add support for getting the serdev-controller by the PCI devfn of its
parent instead.
This also renames the use_pci_devname flag to use_pci since the former
name now no longer is accurate.
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241204204227.95757-8-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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a union
Store the serdev-controller ACPI HID + UID in a union inside struct
x86_serdev_info.
This is a preparation patch for adding support for PCI enumerated serdev-
controllers which will be done by the devfn value of the PCI device.
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241204204227.95757-7-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Make x86_instantiate_serdev() take a "struct x86_dev_info *" + idx as
arguments instead of a "struct x86_serdev_info *" + idx.
This makes the x86_instantiate_serdev() prototype match
the x86_instantiate_i2c_client() and x86_instantiate_spi_dev() prototypes.
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241204204227.95757-6-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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The x86-android-tablets code needs to be able to get a serdev_controller
device from a PCI parent, rather then by the ACPI HID+UID of the parent,
because on some tablets the UARTs are enumerated as PCI devices instead
of ACPI devices.
Split the code to walk the device hierarchy to find the serdev_controller
from its parents out into a get_serdev_controller_from_parent() helper
so that the x86-android-tablets code can re-use it.
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241204204227.95757-5-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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dell_uart_bl_pdev_probe() calls get_serdev_controller() with the
serial_ctrl_uid parameter set to NULL.
In case of errors this NULL parameter then gets passed to pr_err()
as argument matching a "%s" conversion specification. This leads to
compiler warnings when building with "make W=1".
Check serial_ctrl_uid before passing it to pr_err() to avoid these.
Fixes: dc5afd720f84 ("platform/x86: Add new get_serdev_controller() helper")
Cc: stable@vger.kernel.org
Suggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20241204204227.95757-4-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Commit 06f876def346 ("platform/x86: x86-android-tablets: Add support for
Vexia EDU ATLA 10 tablet") omitted the static keyword from some variables
which are only used inside other.c .
Add the missing static keyword to these, this fixes the following warnings:
.../x86-android-tablets/other.c:605:12: sparse: sparse: symbol 'crystal_cove_pwrsrc_psy' was not declared. Should it be static?
.../x86-android-tablets/other.c:612:28: sparse: sparse: symbol 'vexia_edu_atla10_ulpmc_node' was not declared. Should it be static?
Fixes: 06f876def346 ("platform/x86: x86-android-tablets: Add support for Vexia EDU ATLA 10 tablet")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202411301001.1glTy7Xm-lkp@intel.com/
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20241204204227.95757-3-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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get_i2c_adap_by_handle() and get_i2c_adap_by_pci_parent() both are only
used by x86_instantiate_i2c_client() which is __init itself and in case
of the latter it also uses match_parent() which is also __init.
Fixes: 5b78e809f948 ("platform/x86: x86-android-tablets: Add support for getting i2c_adapter by PCI parent devname()")
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241204204227.95757-2-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Ilpo Järvinen:
- asus-nb-wmi: Silence unknown event warning when charger is plugged in
- asus-wmi: Handle return code variations during thermal policy writing
graciously
- samsung-laptop: Correct module description
* tag 'platform-drivers-x86-v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: asus-nb-wmi: Ignore unknown event 0xCF
platform/x86: asus-wmi: Ignore return value when writing thermal policy
platform/x86: samsung-laptop: Match MODULE_DESCRIPTION() to functionality
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'https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git' into for-next
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Clean up the existing export namespace code along the same lines of
commit 33def8498fdd ("treewide: Convert macro and uses of __section(foo)
to __section("foo")") and for the same reason, it is not desired for the
namespace argument to be a macro expansion itself.
Scripted using
git grep -l -e MODULE_IMPORT_NS -e EXPORT_SYMBOL_NS | while read file;
do
awk -i inplace '
/^#define EXPORT_SYMBOL_NS/ {
gsub(/__stringify\(ns\)/, "ns");
print;
next;
}
/^#define MODULE_IMPORT_NS/ {
gsub(/__stringify\(ns\)/, "ns");
print;
next;
}
/MODULE_IMPORT_NS/ {
$0 = gensub(/MODULE_IMPORT_NS\(([^)]*)\)/, "MODULE_IMPORT_NS(\"\\1\")", "g");
}
/EXPORT_SYMBOL_NS/ {
if ($0 ~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+),/) {
if ($0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/ &&
$0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(\)/ &&
$0 !~ /^my/) {
getline line;
gsub(/[[:space:]]*\\$/, "");
gsub(/[[:space:]]/, "", line);
$0 = $0 " " line;
}
$0 = gensub(/(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/,
"\\1(\\2, \"\\3\")", "g");
}
}
{ print }' $file;
done
Requested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://mail.google.com/mail/u/2/#inbox/FMfcgzQXKWgMmjdFwwdsfgxzKpVHWPlc
Acked-by: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Previously, AMD's Ryzen Desktop SoCs did not include support for STB.
However, to accommodate this recent change, PMFW has implemented a new
message port pair mechanism for handling messages, arguments, and
responses, specifically designed for distinguishing from Mobile SoCs.
Therefore, it is necessary to update the driver to properly handle this
incoming change.
Add a new function amd_stb_update_args() to simply the arguments that
needs to be passed between S2D supported Mobile SoCs vs Desktop SoCs.
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20241108070822.3912689-10-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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AMD's 1Ah family 70h model uses a different S2D (Spill to DRAM) message
ID. Update the driver with this information.
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20241108070822.3912689-9-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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The latest AMD processors include additional IP blocks that must be turned
off before transitioning to low power. PMFW provides an interface to
retrieve debug information from each IP block, which is useful for
diagnosing issues if the system fails to enter or exit low power states,
or for profiling which IP block takes more time. Add support for using
this information within the driver.
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20241108070822.3912689-8-Shyam-sundar.S-k@amd.com
[ij: grouped active_ips, ips_ptr, and num_ips next to each other.]
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Instead of manually specifying num_ips, use ARRAY_SIZE() to set this value
based on the actual number of elements in the array.
Reviewed-by: Ilpo Jarvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20241108070822.3912689-7-Shyam-sundar.S-k@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Since S2D (Spill to DRAM) uses different message port offsets compared to
PMC message offsets for communication with PMFW, relocate the S2D macros
from pmc.c to a new file, mp1_stb.c, for better code organization.
Following this change, it is logical to introduce a new structure,
"struct stb_arg," to pass the message, argument, and response offset
details to PMFW via the amd_pmc_send_cmd() call. Additionally, move the
s2d_msg_id member from amd_pmc_dev into the new structure.
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20241108070822.3912689-6-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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To distinguish between the PMC message port and the S2D (Spill to DRAM)
message port, replace the use of 0 and 1 with an enum.
To avoid printing the S2D or PMC port multiple times in debug print,
add new routine to retrieve the message port information, which can be
used to print the right msg_port getting used.
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20241108070822.3912689-5-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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With STB now in a separate file, update the function names to match the
correct naming schema by removing the _pmc_ prefix where needed.
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20241108070822.3912689-4-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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organization
As the SoC evolves with each generation, the dynamics between the PMC and
STB layers within the PMC driver are becoming increasingly complex, making
it challenging to manage both in a single file and maintain code
readability.
Additionally, during silicon bringup, the PMC functionality is often
enabled first, with STB functionality added later. This can lead to missed
updates in the driver, potentially causing issues.
To address these challenges, it's beneficial to move all STB-related
changes to a separate file. This approach will better accommodate newer
SoCs, provide improved flexibility for desktop variants, and facilitate
the collection of additional debug information through STB mechanisms.
Also the additional checks for entering s2d_init have been moved from
the PMC probe to amd_pmc_s2d_init(). This adjustment makes more sense
following the transfer of code to the separate mp1_stb.c file.
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20241108070822.3912689-3-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Transfer the support for STB-related file operations to the
amd_pmc_s2d_init() function, thereby consolidating the STB and S2D
(Spill to DRAM) functionality in one location. Also, relocate the
call to amd_pmc_s2d_init() to occur after the creation of the
"amd_pmc" debugfs directory. This ensures that the driver's root debugfs
directory is established beforehand.
For older platforms that supported S2D, exit immediately after creating
debugfs. These platforms may not support the PMFW messages available on
newer platforms. This adjustment is necessary due to the relocation of
debugfs creation into amd_pmc_s2d_init().
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Co-developed-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20241108070822.3912689-2-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Following new HSMP messages are available on family 0x1A, model 0x00-0x1F
platforms with protocol version 7. Add support for them in the driver.
- SetXgmiPstateRange(26h)
- CpuRailIsoFreqPolicy(27h)
- DfcEnable(28h)
- GetRaplUnit(30h)
- GetRaplCoreCounter(31h)
- GetRaplPackageCounter(32h)
Also update HSMP message PwrEfficiencyModeSelection-21h. This message is
updated to include GET option in recent firmware.
Signed-off-by: Suma Hegde <suma.hegde@amd.com>
Reviewed-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com>
Link: https://lore.kernel.org/r/20241118102752.11703-1-suma.hegde@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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strcpy() performs no bounds checking on the destination buffer. This
could result in linear overflows beyond the end of the buffer, leading
to all kinds of misbehaviors.[1]
[1]: https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy
Signed-off-by: Abdul Rahim <abdul.rahim@myyahoo.com>
Acked-by: Jonathan Woithe <jwoithe@just42.net>
Link: https://lore.kernel.org/r/20241127203710.36425-1-abdul.rahim@myyahoo.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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On the Asus X541UAK an unknown event 0xCF is emited when the charger
is plugged in. This is caused by the following AML code:
If (ACPS ())
{
ACPF = One
Local0 = 0x58
If (ATKP)
{
^^^^ATKD.IANE (0xCF)
}
}
Else
{
ACPF = Zero
Local0 = 0x57
}
Notify (AC0, 0x80) // Status Change
If (ATKP)
{
^^^^ATKD.IANE (Local0)
}
Sleep (0x64)
PNOT ()
Sleep (0x0A)
NBAT (0x80)
Ignore the 0xCF event to silence the unknown event warning.
Reported-by: Pau Espin Pedrol <pespin@espeweb.net>
Closes: https://lore.kernel.org/platform-driver-x86/54d4860b-ec9c-4992-acf6-db3f90388293@espeweb.net
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241123224700.18530-1-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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On some machines like the ASUS Vivobook S14 writing the thermal policy
returns the currently writen thermal policy instead of an error code.
Ignore the return code to avoid falsely returning an error when the
thermal policy was written successfully.
Reported-by: auslands-kv@gmx.de
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219517
Fixes: 2daa86e78c49 ("platform/x86: asus_wmi: Support throttle thermal policy")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241124171941.29789-1-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Change module description from "Samsung Backlight driver" to "Samsung
Laptop driver" to better match driver's functionality.
Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20241123133041.16042-1-sedat.dilek@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
|
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make lenovo_yoga_tab2_1380_bq24190_pdata and lenovo_yoga_tab2_1380_modules
to be static
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202410160432.oJAPbrW9-lkp@intel.com/
Fixes: 3eee73ad42c3 ("platform/x86: x86-android-tablets: Add Lenovo Yoga Tablet 2 Pro 1380F/L data")
Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/daafd1371e7e9946217712ce8720e29cd5c52f7a.1732161310.git.xiaopei01@kylinos.cn
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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The header clearly states that it does not want to be included directly,
only via 'device.h'. 'platform_device.h' works equally well. Remove the
direct inclusion.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20241118072917.3853-13-wsa+renesas@sang-engineering.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is a small set of driver core changes for 6.13-rc1.
Nothing major for this merge cycle, except for the two simple merge
conflicts are here just to make life interesting.
Included in here are:
- sysfs core changes and preparations for more sysfs api cleanups
that can come through all driver trees after -rc1 is out
- fw_devlink fixes based on many reports and debugging sessions
- list_for_each_reverse() removal, no one was using it!
- last-minute seq_printf() format string bug found and fixed in many
drivers all at once.
- minor bugfixes and changes full details in the shortlog"
* tag 'driver-core-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (35 commits)
Fix a potential abuse of seq_printf() format string in drivers
cpu: Remove spurious NULL in attribute_group definition
s390/con3215: Remove spurious NULL in attribute_group definition
perf: arm-ni: Remove spurious NULL in attribute_group definition
driver core: Constify bin_attribute definitions
sysfs: attribute_group: allow registration of const bin_attribute
firmware_loader: Fix possible resource leak in fw_log_firmware_info()
drivers: core: fw_devlink: Fix excess parameter description in docstring
driver core: class: Correct WARN() message in APIs class_(for_each|find)_device()
cacheinfo: Use of_property_present() for non-boolean properties
cdx: Fix cdx_mmap_resource() after constifying attr in ->mmap()
drivers: core: fw_devlink: Make the error message a bit more useful
phy: tegra: xusb: Set fwnode for xusb port devices
drm: display: Set fwnode for aux bus devices
driver core: fw_devlink: Stop trying to optimize cycle detection logic
driver core: Constify attribute arguments of binary attributes
sysfs: bin_attribute: add const read/write callback variants
sysfs: implement all BIN_ATTR_* macros in terms of __BIN_ATTR()
sysfs: treewide: constify attribute callback of bin_attribute::llseek()
sysfs: treewide: constify attribute callback of bin_attribute::mmap()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- support for NT36672A touchscreen added to novatek-nvt-ts driver
- a change to ads7846 driver to prevent XPT2046 from locking up
- a change switching platform input dirves back to using remove()
method (from remove_new())
- updates to a number of input drivers to use the new cleanup
facilities (__free(...), guard(), and scoped-guard()) which ensure
that the resources and locks are released properly and automatically
- other assorted driver cleanups and fixes.
* tag 'input-for-v6.13-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (109 commits)
Input: mpr121 - use devm_regulator_get_enable_read_voltage()
Input: sun4i-lradc-keys - don't include 'pm_wakeup.h' directly
Input: spear-keyboard - don't include 'pm_wakeup.h' directly
Input: cypress-sf - constify struct i2c_device_id
Input: ads7846 - increase xfer array size in 'struct ser_req'
Input: fix the input_event struct documentation
Input: i8042 - fix typo dublicate to duplicate
Input: ads7846 - add dummy command register clearing cycle
Input: cs40l50 - fix wrong usage of INIT_WORK()
Input: introduce notion of passive observers for input handlers
Input: maple_keyb - use guard notation when acquiring mutex
Input: locomokbd - use guard notation when acquiring spinlock
Input: hilkbd - use guard notation when acquiring spinlock
Input: synaptics-rmi4 - switch to using cleanup functions in F34
Input: synaptics - fix a typo
dt-bindings: input: rotary-encoder: Fix "rotary-encoder,rollover" type
Input: omap-keypad - use guard notation when acquiring mutex
Input: imagis - fix warning regarding 'imagis_3038_data' being unused
Input: userio - remove unneeded semicolon
Input: sparcspkr - use cleanup facility for device_node
...
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
- Several drivers, including atmel-flexcom/rk8xx-core, palmas, and
tps65010, have undergone minor code improvements to enhance
consistency and fix race conditions.
- The syscon driver now utilizes the regmap max_register_is_0
capability for consistent register map configuration across syscons
of all sizes.
- New device support has been added for QCS8300, qcs615, SA8255p, and
samsung,s2dos05, expanding the range of compatible hardware.
- The cros_ec driver now supports loading cros_ec_ucsi on supported ECs
and avoids loading the charger with UCSI, streamlining functionality.
- The bd96801 driver now utilizes the more modern maple tree register
cache, improving performance.
- The da9052-spi driver has undergone a fix to change the read-mask to
write-mask, preventing potential issues.
- Unused declarations in max77693 have been removed, and support for
samsung,s2dos05 has been added, enhancing code clarity and device
compatibility.
- Error handling in cs42l43 has been fixed to avoid unbalanced
regulator put and ensure proper synchronization during driver
removal.
- The wcd934x driver now uses MODULE_DEVICE_TABLE() instead of
MODULE_ALIAS(), improving code consistency.
- Documentation for qcom,tcsr, syscon, and atmel-smc has been updated
and reorganized for better clarity and maintainability.
- The intel_soc_pmic_bxtwc driver has undergone significant
improvements, including the use of IRQ domains for various devices,
fixing IRQ domain names duplication, and code refactoring for better
consistency and maintainability.
- The ipaq-micro driver has received a fix for a missing break
statement in the default case, enhancing code robustness.
- Support for the AXP323 PMIC has been added to the axp20x driver,
along with ensuring a clear relationship between IDs and model names,
and allowing multiple regulators, broadening hardware compatibility.
- The cs42l43 driver now disables IRQs during suspend for improved
power management.
- The adp5585 driver has reduced its dependencies by dropping the
obsolete dependency on COMPILE_TEST.
- Initial support for the MT6328 PMIC has been added to the mt6397
driver, expanding the range of supported hardware.
- The rtc-bd70528 driver has been simplified by dropping the IC name
from IRQ, improving code readability.
- Documentation for qcom,spmi-pmic, ti,twl, and zii,rave-sp has been
updated to enhance clarity and incorporate new features.
- The rt5033 driver has received a fix for a missing
regmap_del_irq_chip() in the error handling path.
- New device support has been added for MSM8917, and the
intel_soc_pmic_crc driver now supports non-ACPI instantiated
i2c_client.
- The 88pm886 driver has added support for the RTC cell, and the tqmx86
driver has improved its GPIO IRQ setup and added I2C IRQ support,
increasing functionality.
- The sprd,sc2731 DT schema has been updated and converted to YAML
format for better readability and maintainability.
* tag 'mfd-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (62 commits)
dt-bindings: mfd: bd71828: Use charger resistor in mOhm instead of MOhm
dt-bindings: mfd: sprd,sc2731: Convert to YAML
mfd: tqmx86: Add I2C IRQ support
mfd: tqmx86: Make IRQ setup errors non-fatal
mfd: tqmx86: Refactor GPIO IRQ setup
mfd: tqmx86: Improve gpio_irq module parameter description
mfd: tqmx86: Add board definitions for TQMx120UC, TQMx130UC and TQMxE41S
mfd: 88pm886: Add the RTC cell
dt-bindings: mfd: Add Realtek RTL9300 switch peripherals
mfd: intel_soc_pmic_crc: Add support for non ACPI instantiated i2c_client
mfd: intel_soc_pmic_*: Consistently use filename as driver name
dt-bindings: mfd: qcom,tcsr: Add compatible for MSM8917
mfd: rt5033: Fix missing regmap_del_irq_chip()
mfd: cgbc-core: Fix error handling paths in cgbc_init_device()
dt-bindings: mfd: aspeed: Support for AST2700
mfd: Switch back to struct platform_driver::remove()
dt-bindings: mfd: qcom,spmi-pmic: Document PMICs added in SM8750
mfd: rtc: bd7xxxx Drop IC name from IRQ
mfd: mt6397: Add initial support for MT6328
mfd: adp5585: Drop obsolete dependency on COMPILE_TEST
...
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Ilpo Järvinen:
- alienware WMAX thermal interface support
- Split ACPI and platform device based amd/hsmp drivers
- AMD X3D frequency/cache mode switching support
- asus thermal policy fixes
- Disable C1 auto-demotion in suspend to allow entering the deepest
C-states
- Fix volume buttons on Thinkpad X12 Detachable Tablet Gen 1
- Replace intel_scu_ipc "workaround" with 32-bit IO
- Correct *_show() function error handling in panasonic-laptop
- Gemini Lake P2SB devfn correction
- think-lmi Admin/System certificate authentication support
- Disable WMI devices for shutdown, refactoring continues
- Vexia EDU ATLA 10 tablet support
- Surface Pro 9 5G (Arm/QCOM) support
- Misc cleanups / refactoring / improvements
* tag 'platform-drivers-x86-v6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (69 commits)
platform/x86: p2sb: Cache correct PCI bar for P2SB on Gemini Lake
platform/x86: panasonic-laptop: Return errno correctly in show callback
Documentation: alienware-wmi: Describe THERMAL_INFORMATION operation 0x02
alienware-wmi: create_thermal_profile() no longer brute-forces IDs
alienware-wmi: Adds support to Alienware x17 R2
alienware-wmi: extends the list of supported models
alienware-wmi: order alienware_quirks[] alphabetically
platform/x86/intel/pmt: allow user offset for PMT callbacks
platform/x86/amd/hsmp: Change the error type
platform/x86/amd/hsmp: Add new error code and error logs
platform/x86/amd: amd_3d_vcache: Add sysfs ABI documentation
platform/x86/amd: amd_3d_vcache: Add AMD 3D V-Cache optimizer driver
intel-hid: fix volume buttons on Thinkpad X12 Detachable Tablet Gen 1
platform/x86/amd/hsmp: mark hsmp_msg_desc_table[] as maybe_unused
platform/x86: asus-wmi: Use platform_profile_cycle()
platform/x86: asus-wmi: Fix inconsistent use of thermal policies
platform/x86: hp: hp-bioscfg: remove redundant if statement
MAINTAINERS: Update ISHTP ECLITE maintainer entry
platform/x86: x86-android-tablets: Add support for Vexia EDU ATLA 10 tablet
platform/x86: x86-android-tablets: Add support for getting i2c_adapter by PCI parent devname()
...
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Gemini Lake (Goldmont Plus) is an Apollo Lake (Goldmont) derived design and
as such has the P2SB at device.function 13.0, rather then at the default
31.1, just like Apollo Lake.
At a mapping to P2SB_DEVFN_GOLDMONT to p2sb_cpu_ids[] for Goldmont Plus,
so that the correct PCI bar gets cached.
This fixes P2SB unhiding not working on these devices, which fixes
SPI support for the bootrom SPI controller not working.
Fixes: 2841631a0365 ("platform/x86: p2sb: Allow p2sb_bar() calls during PCI device probe")
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241116154546.85761-1-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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When an error occurs in sysfs show callback, we should return the errno
directly instead of formatting it as the result, which produces
meaningless output and doesn't inform the userspace of the error.
Fixes: 468f96bfa3a0 ("platform/x86: panasonic-laptop: Add support for battery charging threshold (eco mode)")
Fixes: d5a81d8e864b ("platform/x86: panasonic-laptop: Add support for optical driver power in Y and W series")
Signed-off-by: Yao Zi <ziyao@disroot.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241118064637.61832-3-ziyao@disroot.org
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
|
