ACPI_EXCEPTION is only intended for internal use by the ACPICA code.
ACPI_EXCEPTION was being used here to change the apci_status code into
something human-readable, use acpi_format_exception() for this instead,
which is the proper way to do this outside of ACPICA.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210204140205.268344-1-hdegoede@redhat.com
With the #if IS_ENABLED(CONFIG_ACPI_PLATFORM_PROFILE), we get the following
errors when thinkpad_acpi is builtin while CONFIG_ACPI_PLATFORM_PROFILE=m :
drivers/platform/x86/thinkpad_acpi.c:10186: undefined reference to `platform_profile_notify'
drivers/platform/x86/thinkpad_acpi.c:10226: undefined reference to `platform_profile_register'
drivers/platform/x86/thinkpad_acpi.c:10246: undefined reference to `platform_profile_remove'
This could be fixed by changing the IS_ENABLED to IS_REACHABLE, but
I believe that it is better to just switch to using depends on.
Using depends on ensures that platform-profile support is always
available when thinkpad_acpi is build, hopefully leading to less
confusing bug-reports about it sometimes not working.
Cc: Mark Pearson <markpearson@lenovo.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210204140158.268289-2-hdegoede@redhat.com
Some of the new dytc handling functions are not marked static, even though
they are only used internally.
Mark these static, fixing the following compiler warnings:
drivers/platform/x86/thinkpad_acpi.c:10081:5: warning: no previous prototype for 'dytc_profile_get' [-Wmissing-prototypes]
drivers/platform/x86/thinkpad_acpi.c:10095:5: warning: no previous prototype for 'dytc_cql_command' [-Wmissing-prototypes]
drivers/platform/x86/thinkpad_acpi.c:10133:5: warning: no previous prototype for 'dytc_profile_set' [-Wmissing-prototypes]
Cc: Mark Pearson <markpearson@lenovo.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210204140158.268289-1-hdegoede@redhat.com
Certain models have a so-called "always on USB charging" feature,
which enables USB charging even when the computer is turned off
or suspended, and which may be controlled/queried using the
SALS/HALS ACPI methods. Expose this functionality via a new device
attribute (usb_charging). Tested on: Lenovo YOGA 520-14IKB 80X8
Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Link: https://lore.kernel.org/r/20210203215403.290792-28-pobrn@protonmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Fix all checkpatch warnings. Reorder variable definitions from
longest to shortest. Add more whitespaces for better readability.
Rename variables named `ret` to `err` where appropriate. Reorder
sysfs attributes show/store callbacks and the `ideapad_attributes`
array in lexicographic order. And other minor formatting changes.
No significant functional changes are intended.
Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Link: https://lore.kernel.org/r/20210203215403.290792-25-pobrn@protonmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Create dedicated helper functions for accessing the main ACPI methods:
GBMD, SMBC, HALS, SALS; and utilize them. Use `unsigned long` consistently
in every ACPI helper wherever possible. Change names to better express
purpose. Do not assign values to output parameters in case of failure.
Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Link: https://lore.kernel.org/r/20210203215403.290792-18-pobrn@protonmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Do not handle zero length buffer separately. Use kstrtouint() instead
of sscanf(). Use kstrtobool() in store_ideapad_cam(). These
introduce minor ABI changes, but it is expected that no users rely
on the previous behavior. Thus the change is deemed justifed.
Additionally, use `!!` to convert to `int` and use the "%d" format
specifier in sysfs_emit() for boolean-like attributes.
Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Link: https://lore.kernel.org/r/20210203215403.290792-16-pobrn@protonmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Consumers can differentiate an error from a successful read much more
easily if the read() call fails with an appropriate errno instead of
returning a magic string like "-1". This introduces an ABI change, but
not many users are expected to be relying on the previous behavior,
and this change makes this module conforming to the standard behavior
that sysfs attribute show/store callbacks return an appropriate
errno in case of failure. Thus the ABI breakage is deemed justified.
Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Link: https://lore.kernel.org/r/20210203215403.290792-15-pobrn@protonmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The braces of the unlikely() macro inside the if condition only cover
the subtraction part, not the whole statement. This causes the result of
the subtraction to be converted to zero or one. While that still works
in this context, it causes static analysis tools to complain (and is
just plain wrong).
Fix the bracket placement and, while at it, simplify the if-condition.
Also add a comment to the if-condition explaining what we expect the
result to be and what happens on the failure path, as it seems to have
caused a bit of confusion.
This commit should not cause any difference in behavior or generated
code.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: c167b9c7e3 ("platform/surface: Add Surface Aggregator subsystem")
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20210126172202.1428367-1-luzmaximilian@gmail.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
ib-drm-gpio-pdx86-rtc-wdt for v5.12-1
First part of Intel MID outdated platforms removal.
The following is an automated git shortlog grouped by driver:
drm/gma500:
- Get rid of duplicate NULL checks
- Convert to use new SCU IPC API
gpio:
- msic: Remove driver for deprecated platform
- intel-mid: Remove driver for deprecated platform
intel_mid_powerbtn:
- Remove driver for deprecated platform
intel_mid_thermal:
- Remove driver for deprecated platform
intel_scu_wdt:
- Get rid of custom x86 model comparison
- Drop SCU notification
- Move driver from arch/x86
rtc:
- mrst: Remove driver for deprecated platform
watchdog:
- intel-mid_wdt: Postpone IRQ handler registration till SCU is ready
- intel_scu_watchdog: Remove driver for deprecated platform
Currently, we return if there is no partner present when
!PD_CTRL_RESP_ENABLED_CONNECTED, without proceeding further. This ties
partner removal to cable removal, whereas the two should be independent.
Update the check to remove a partner if one was registered, but continue
after that instead of returning.
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Link: https://lore.kernel.org/r/20210202224001.3810274-1-pmalani@chromium.org
Signed-off-by: Benson Leung <bleung@chromium.org>
Add support to ideapad-laptop for Lenovo platforms that have DYTC
version 5 support or newer to use the platform profile feature.
Mostly based on Mark Pearson <markpearson@lenovo.com>'s thinkpad-acpi
work but massaged to fit ideapad driver.
Note that different from ThinkPads, IdeaPads's Thermal Hotkey won't
trigger profile switch itself, we'll leave it for userspace programs.
Tested on Lenovo Yoga-14S ARE Chinese Edition.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210105131447.38036-3-jiaxun.yang@flygoat.com
[hdegoede@redhat.com s/QUIET/LOW_POWER/]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The previous commit adding new sysfs for keyboard language has warning and
few code correction has to be done as per new review comments.
Below changes has been addressed in this version:
- corrected warning. Many thanks to kernel test robot <lkp@intel.com> for
reporting and determining this warning.
- used sysfs_emit_at() API instead of strcat.
- sorted keyboard language array.
- removed unwanted space and corrected sentences.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Nitin Joshi <njoshi1@lenovo.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210202003210.91773-1-njoshi1@lenovo.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
All recent ThinkPad BIOS-es support the GSKL method used to query the
keyboard-layout used by the ECFW for the SHIFT + other-key key-press
emulation for special keys such as e.g. the '=', '(' and ')' keys
above the numpad on 15" models.
So just checking for the method is not a good indicator of the
model supporting getting/setting the keyboard_lang.
On models where this is not supported GSKL succeeds, but it returns
METHOD_ERR in the returned integer to indicate that this is not
supported on this model.
Add a check for METHOD_ERR and return -ENODEV if it is set to
avoid registering a non-working keyboard_lang sysfs-attr on models
where this is not supported.
Cc: Nitin Joshi <njoshi1@lenovo.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210125205258.135664-1-hdegoede@redhat.com
