Due to several bugs caused by timers being re-armed after they are
shutdown and just before they are freed, a new state of timers was added
called "shutdown". After a timer is set to this state, then it can no
longer be re-armed.
The following script was run to find all the trivial locations where
del_timer() or del_timer_sync() is called in the same function that the
object holding the timer is freed. It also ignores any locations where
the timer->function is modified between the del_timer*() and the free(),
as that is not considered a "trivial" case.
This was created by using a coccinelle script and the following
commands:
$ cat timer.cocci
@@
expression ptr, slab;
identifier timer, rfield;
@@
(
- del_timer(&ptr->timer);
+ timer_shutdown(&ptr->timer);
|
- del_timer_sync(&ptr->timer);
+ timer_shutdown_sync(&ptr->timer);
)
... when strict
when != ptr->timer
(
kfree_rcu(ptr, rfield);
|
kmem_cache_free(slab, ptr);
|
kfree(ptr);
)
$ spatch timer.cocci . > /tmp/t.patch
$ patch -p1 < /tmp/t.patch
Link: https://lore.kernel.org/lkml/20221123201306.823305113@linutronix.de/
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Pavel Machek <pavel@ucw.cz> [ LED ]
Acked-by: Kalle Valo <kvalo@kernel.org> [ wireless ]
Acked-by: Paolo Abeni <pabeni@redhat.com> [ networking ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Various changes across the board, mostly improvements and cleanups.
-----BEGIN PGP SIGNATURE-----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=IM51
-----END PGP SIGNATURE-----
Merge tag 'pwm/for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"Various changes across the board, mostly improvements and cleanups"
* tag 'pwm/for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (42 commits)
pwm: pca9685: Convert to i2c's .probe_new()
pwm: sun4i: Propagate errors in .get_state() to the caller
pwm: Handle .get_state() failures
pwm: sprd: Propagate errors in .get_state() to the caller
pwm: rockchip: Propagate errors in .get_state() to the caller
pwm: mtk-disp: Propagate errors in .get_state() to the caller
pwm: imx27: Propagate errors in .get_state() to the caller
pwm: cros-ec: Propagate errors in .get_state() to the caller
pwm: crc: Propagate errors in .get_state() to the caller
leds: qcom-lpg: Propagate errors in .get_state() to the caller
drm/bridge: ti-sn65dsi86: Propagate errors in .get_state() to the caller
pwm/tracing: Also record trace events for failed API calls
pwm: Make .get_state() callback return an error code
pwm: pxa: Enable for MMP platform
pwm: pxa: Add reference manual link and limitations
pwm: pxa: Use abrupt shutdown mode
pwm: pxa: Remove clk enable/disable from pxa_pwm_config
pwm: pxa: Set duty cycle to 0 when disabling PWM
pwm: pxa: Remove pxa_pwm_enable/disable
pwm: mediatek: Add support for MT7986
...
lot. Plus, there are some bugfixes as a bonus.
-----BEGIN PGP SIGNATURE-----
iF0EABECAB0WIQRPfPO7r0eAhk010v0w5/Bqldv68gUCY5xICAAKCRAw5/Bqldv6
8nkhAJ9lqVnS7+m2eq5w1gQlgd2ToktRaQCfcj7WPznJCe3dPVpwSsWxa//B1Rw=
=B8QS
-----END PGP SIGNATURE-----
Merge tag 'leds-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds
Pull LED updates from Pavel Machek:
"Lee Jones offered his help with maintaining LEDs, thanks a lot.
Plus, there are some bugfixes as a bonus"
* tag 'leds-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds:
leds: MAINTAINERS: include dt-bindings headers
leds: qcom,pm8058-led: Convert to DT schema
leds: use sysfs_emit() to instead of scnprintf()
leds: is31fl319x: Fix setting current limit for is31fl319{0,1,3}
MAINTAINERS: Add additional co-maintainer to LEDs
leds: lp5523: fix out-of-bounds bug in lp5523_selftest()
dt-bindings: leds: Add 'cpuX' to 'linux,default-trigger'
led: qcom-lpg: Fix sleeping in atomic
leds: max8997: Don't error if there is no pdata
leds: lp55xx: remove variable j
leds-pca955x: Remove the unused function pca95xx_num_led_regs()
GPIO core:
- teach gpiolib to work with software nodes for HW description
- remove ARCH_NR_GPIOS treewide as we no longer impose any limit on the number
of GPIOS since the allocation became entirely dynamic
- add support for HW quirks for Cirrus CS42L56 codec, Marvell NFC controller,
Freescale PCIe and Ethernet controller, Himax LCDs and Mediatek mt2701
- refactor OF quirk code
- some general refactoring of the OF and ACPI code, adding new helpers, minor
tweaks and fixes, making fwnode usage consistent etc.
GPIO uAPI:
- fix an issue where the user-space can trigger a NULL-pointer dereference in
the kernel by opening a device file, forcing a driver unbind and then calling
one of the syscalls on the associated file descriptor
New drivers:
- add gpio-latch: a new GPIO multiplexer based on latches connected to other
GPIOs
Driver updates:
- convert i2c GPIO expanders to using .probe_new()
- drop the gpio-sta2x11 driver
- factor out common code for the ACCES IDIO-16 family of controllers and use
this new library wherever applicable in drivers
- add DT support to gpio-hisi
- allow building gpio-davinci as a module and increase its maxItems property
- add support for a new model to gpio-pca9570
- other minor changes to various drivers
-----BEGIN PGP SIGNATURE-----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=zg1O
-----END PGP SIGNATURE-----
Merge tag 'gpio-updates-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We have a new GPIO multiplexer driver, bunch of driver updates and
refactoring in the core GPIO library.
GPIO core:
- teach gpiolib to work with software nodes for HW description
- remove ARCH_NR_GPIOS treewide as we no longer impose any limit on
the number of GPIOS since the allocation became entirely dynamic
- add support for HW quirks for Cirrus CS42L56 codec, Marvell NFC
controller, Freescale PCIe and Ethernet controller, Himax LCDs and
Mediatek mt2701
- refactor OF quirk code
- some general refactoring of the OF and ACPI code, adding new
helpers, minor tweaks and fixes, making fwnode usage consistent
etc.
GPIO uAPI:
- fix an issue where the user-space can trigger a NULL-pointer
dereference in the kernel by opening a device file, forcing a
driver unbind and then calling one of the syscalls on the
associated file descriptor
New drivers:
- add gpio-latch: a new GPIO multiplexer based on latches connected
to other GPIOs
Driver updates:
- convert i2c GPIO expanders to using .probe_new()
- drop the gpio-sta2x11 driver
- factor out common code for the ACCES IDIO-16 family of controllers
and use this new library wherever applicable in drivers
- add DT support to gpio-hisi
- allow building gpio-davinci as a module and increase its maxItems
property
- add support for a new model to gpio-pca9570
- other minor changes to various drivers"
* tag 'gpio-updates-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (66 commits)
gpio: sim: set a limit on the number of GPIOs
gpiolib: protect the GPIO device against being dropped while in use by user-space
gpiolib: cdev: fix NULL-pointer dereferences
gpiolib: Provide to_gpio_device() helper
gpiolib: Unify access to the device properties
gpio: Do not include <linux/kernel.h> when not really needed.
gpio: pcf857x: Convert to i2c's .probe_new()
gpio: pca953x: Convert to i2c's .probe_new()
gpio: max732x: Convert to i2c's .probe_new()
dt-bindings: gpio: gpio-davinci: Increase maxItems in gpio-line-names
gpiolib: ensure that fwnode is properly set
gpio: sl28cpld: Replace irqchip mask_invert with unmask_base
gpiolib: of: Use correct fwnode for DT-probed chips
gpiolib: of: Drop redundant check in of_mm_gpiochip_remove()
gpiolib: of: Prepare of_mm_gpiochip_add_data() for fwnode
gpiolib: add support for software nodes
gpiolib: consolidate GPIO lookups
gpiolib: acpi: avoid leaking ACPI details into upper gpiolib layers
gpiolib: acpi: teach acpi_find_gpio() to handle data-only nodes
gpiolib: acpi: change acpi_find_gpio() to accept firmware node
...
Replace the open-code with sysfs_emit() to simplify the code.
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
The current setting lives in bits 4:2 (as also defined by the mask) but
the current limit defines in the driver use bits 2:0 which should be
shifted over so they don't get masked out completely (except for 17.5mA
which became 10mA).
Now checking /sys/kernel/debug/regmap/1-0068/registers shows that the
current limit is applied correctly and doesn't take the default b000 =
42mA.
Fixes: fa877cf1ab ("leds: is31fl319x: Add support for is31fl319{0,1,3} chips")
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
.get_state() can return an error indication. Make use of it to propagate
failing hardware accesses.
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20221130152148.2769768-5-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
.get_state() might fail in some cases. To make it possible that a driver
signals such a failure change the prototype of .get_state() to return an
error code.
This patch was created using coccinelle and the following semantic patch:
@p1@
identifier getstatefunc;
identifier driver;
@@
struct pwm_ops driver = {
...,
.get_state = getstatefunc
,...
};
@p2@
identifier p1.getstatefunc;
identifier chip, pwm, state;
@@
-void
+int
getstatefunc(struct pwm_chip *chip, struct pwm_device *pwm, struct pwm_state *state)
{
...
- return;
+ return 0;
...
}
plus the actual change of the prototype in include/linux/pwm.h (plus some
manual fixing of indentions and empty lines).
So for now all drivers return success unconditionally. They are adapted
in the following patches to make the changes easier reviewable.
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Acked-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20221130152148.2769768-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
devm_fwnode_get_gpiod_from_child() is going away as the name is too
unwieldy, let's switch to using the new devm_fwnode_gpiod_get().
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
devm_fwnode_get_gpiod_from_child() is going away as the name is too
unwieldy, let's switch to using the new devm_fwnode_gpiod_get().
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
When not all LED channels of the led chip are configured, the
sysfs selftest functionality gives erroneous results and tries to
test all channels of the chip.
There is a potential for LED overcurrent conditions since the
test current will be set to values from out-of-bound regions.
It is wrong to use pdata->led_config[i].led_current to skip absent
channels as led_config[] only contains the configured LED channels.
Instead of iterating over all the physical channels of the device,
loop over the available LED configurations and use led->chan_nr to
access the correct i2c registers. Keep the zero-check for the LED
current as existing users might depend on this to disable a channel.
Reported-by: Arne Staessen <a.staessen@televic.com>
Signed-off-by: Maarten Zanders <maarten.zanders@mind.be>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
For apollolake the mapping between LEDs and GPIO pins was off because of
a refactoring when we introduced a new device model.
In addition to the reordering the indices in the lookup table need to be
updated as well.
Fixes: a97126265d ("leds: simatic-ipc-leds-gpio: add new model 227G")
Signed-off-by: Henning Schild <henning.schild@siemens.com>
Link: https://lore.kernel.org/r/20221024092027.4529-1-henning.schild@siemens.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The driver works just fine if no platform data is supplied.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
The variable j being incremented but it is never referenced,
it is redundant and can be removed.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
The function pca95xx_num_led_regs() is defined in the leds-pca955x.c
file, but not called elsewhere, so delete this unused function.
drivers/leds/leds-pca955x.c:149:19: warning: unused function 'pca95xx_num_led_regs'.
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2411
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
that's pretty much it.
-----BEGIN PGP SIGNATURE-----
iF0EABECAB0WIQRPfPO7r0eAhk010v0w5/Bqldv68gUCY0leQwAKCRAw5/Bqldv6
8qGYAJwJ3HPp5PldDKtGr9+90yEJK4SFKgCfTOZenbAe/pESkCGnKJszvHdOupk=
=aZ15
-----END PGP SIGNATURE-----
Merge tag 'leds-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds
Pull LED updates from Pavel Machek:
"This is very quiet release for LEDs, pca963 got blinking support and
that's pretty much it"
* tag 'leds-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds:
leds: pca963: fix misleading indentation
dt-bindings: leds: Document mmc trigger
leds: pca963x: fix blink with hw acceleration
Highlights:
- AMD Platform Management Framework (PMF) driver with AMT and QnQF support
- AMD PMC: Improved logging for debugging s2idle issues
- Big refactor of the ACPI/x86 backlight handling, ensuring that we only
register 1 /sys/class/backlight device per LCD panel
- Microsoft Surface:
- Surface Laptop Go 2 support
- Surface Pro 8 HID sensor support
- Asus WMI:
- Lots of cleanups
- Support for TUF RGB keyboard backlight control
- Add support for ROG X13 tablet mode
- Siemens Simatic: IPC227G and IPC427G support
- Toshiba ACPI laptop driver: Fan hwmon and battery ECO mode support
- tools/power/x86/intel-speed-select: Various improvements
- Various cleanups
- Various small bugfixes
The following is an automated git shortlog grouped by driver:
ACPI:
- video: Change disable_backlight_sysfs_if quirks to acpi_backlight=native
- s2idle: Add a new ->check() callback for platform_s2idle_ops
- video: Fix indentation of video_detect_dmi_table[] entries
- video: Drop NL5x?U, PF4NU1F and PF5?U?? acpi_backlight=native quirks
- video: Drop "Samsung X360" acpi_backlight=native quirk
- video: Remove acpi_video_set_dmi_backlight_type()
- video: Add Apple GMUX brightness control detection
- video: Add Nvidia WMI EC brightness control detection (v3)
- video: Refactor acpi_video_get_backlight_type() a bit
- video: Remove code to unregister acpi_video backlight when a native backlight registers
- video: Make backlight class device registration a separate step (v2)
- video: Simplify acpi_video_unregister_backlight()
- video: Remove acpi_video_bus from list before tearing it down
- video: Drop backlight_device_get_by_type() call from acpi_video_get_backlight_type()
- video: Add acpi_video_backlight_use_native() helper
acer-wmi:
- Move backlight DMI quirks to acpi/video_detect.c
- Acer Aspire One AOD270/Packard Bell Dot keymap fixes
apple-gmux:
- Stop calling acpi/video.h functions
asus-wmi:
- Expand support of GPU fan to read RPM and label
- Make kbd_rgb_mode_groups static
- Move acpi_backlight=native quirks to ACPI video_detect.c
- Move acpi_backlight=vendor quirks to ACPI video_detect.c
- Drop DMI chassis-type check from backlight handling
- Increase FAN_CURVE_BUF_LEN to 32
- Fix the name of the mic-mute LED classdev
- Implement TUF laptop keyboard power states
- Implement TUF laptop keyboard LED modes
- Support the GPU fan on TUF laptops
- Modify behaviour of Fn+F5 fan key
- Update tablet_mode_sw module-param help text
- Simplify tablet-mode-switch handling
- Simplify tablet-mode-switch probing
- Add support for ROG X13 tablet mode
- Adjust tablet/lidflip handling to use enum
- Support the hardware GPU MUX on some laptops
- Simplify some of the *_check_present() helpers
- Refactor panel_od attribute
- Refactor egpu_enable attribute
- Refactor disable_gpu attribute
- Document the panel_od sysfs attribute
- Document the egpu_enable sysfs attribute
- Document the dgpu_disable sysfs attribute
- Use kobj_to_dev()
- Convert all attr-show to use sysfs_emit
compal-laptop:
- Get rid of a few forward declarations
dell-privacy:
- convert to use dev_groups
dell-smbios-base:
- Use sysfs_emit()
dell-wmi:
- Add WMI event 0x0012 0x0003 to the list
docs:
- ABI: charge_control_end_threshold may not support all values
drivers/platform:
- toshiba_acpi: Call HCI_PANEL_POWER_ON on resume on some models
drm/amdgpu:
- Register ACPI video backlight when skipping amdgpu backlight registration
- Don't register backlight when another backlight should be used (v3)
drm/i915:
- Call acpi_video_register_backlight() (v3)
- Don't register backlight when another backlight should be used (v2)
drm/nouveau:
- Register ACPI video backlight when nv_backlight registration fails (v2)
- Don't register backlight when another backlight should be used (v2)
drm/radeon:
- Register ACPI video backlight when skipping radeon backlight registration
- Don't register backlight when another backlight should be used (v3)
drm/todo:
- Add entry about dealing with brightness control on devices with > 1 panel
gpio-f7188x:
- use unique labels for banks/chips
- Add GPIO support for Nuvoton NCT6116
- add a prefix to macros to keep gpio namespace clean
- switch over to using pr_fmt
hp-wmi:
- Support touchpad on/off
- Setting thermal profile fails with 0x06
int3472/discrete:
- Drop a forward declaration
intel-uncore-freq:
- Use sysfs_emit() to instead of scnprintf()
intel_cht_int33fe:
- Fix comment according to the code flow
leds:
- simatic-ipc-leds-gpio: Make simatic_ipc_led_gpio_table static
- simatic-ipc-leds-gpio: add new model 227G
move from strlcpy with unused retval to strscpy:
- move from strlcpy with unused retval to strscpy
msi-laptop:
- Change DMI match / alias strings to fix module autoloading
- Add msi_scm_disable_hw_fn_handling() helper
- Add msi_scm_model_exit() helper
- Fix resource cleanup
- Simplify ec_delay handling
- Fix old-ec check for backlight registering
- Drop MSI_DRIVER_VERSION
- Use MODULE_DEVICE_TABLE()
nvidia-wmi-ec-backlight:
- Use acpi_video_get_backlight_type()
- Move fw interface definitions to a header (v2)
p2sb:
- Fix UAF when caller uses resource name
platform/mellanox:
- mlxreg-lc: Make error handling flow consistent
- Remove redundant 'NULL' check
- Remove unnecessary code
- mlxreg-lc: Fix locking issue
- mlxreg-lc: Fix coverity warning
platform/surface:
- Split memcpy() of struct ssam_event flexible array
- aggregator_registry: Add HID devices for sensors and UCSI client to SP8
- aggregator_registry: Rename HID device nodes based on new findings
- aggregator_registry: Rename HID device nodes based on their function
- aggregator_registry: Add support for Surface Laptop Go 2
platform/x86:
- use PLATFORM_DEVID_NONE instead of -1
platform/x86/amd:
- pmc: Dump idle mask during "check" stage instead
- pmc: remove CONFIG_DEBUG_FS checks
- pmc: Fix build without debugfs
- pmc: Add sysfs files for SMU
- pmc: Add an extra STB message for checking s2idle entry
- pmc: Always write to the STB
- pmc: Add defines for STB events
platform/x86/amd/pmf:
- Remove unused power_delta instances
- install notify handler after acpi init
- Add sysfs to toggle CnQF
- Add support for CnQF
- Fix clang unused variable warning
- Fix undefined reference to platform_profile
- Force load driver on older supported platforms
- Handle AMT and CQL events for Auto mode
- Add support for Auto mode feature
- Get performance metrics from PMFW
- Add fan control support
- Add heartbeat signal support
- Add debugfs information
- Add support SPS PMF feature
- Add support for PMF APCI layer
- Add support for PMF core layer
- Add ABI doc for AMD PMF
- Add AMD PMF driver entry
platform/x86/intel/wmi:
- thunderbolt: Use dev_groups callback
pmc_atom:
- Amend comment style and grammar
- Make terminator entry uniform
- Improve quirk message to be less cryptic
- Fix SLP_TYPx bitfield mask
samsung-laptop:
- Move acpi_backlight=[vendor|native] quirks to ACPI video_detect.c
simatic-ipc:
- add new model 427G
- enable watchdog for 227G
thinkpad_acpi:
- Explicitly set to balanced mode on startup
tools/power/x86/intel-speed-select:
- Release v1.13
- Optimize CPU initialization
- Utilize cpu_map to get physical id
- Remove unused struct clos_config fields
- Enforce isst_id value
- Do not export get_physical_id
- Introduce is_cpu_in_power_domain helper
- Cleanup get_physical_id usage
- Convert more function to use isst_id
- Add pkg and die in isst_id
- Introduce struct isst_id
- Remove unused core_mask array
- Remove dead code
- Fix cpu count for TDP level display
toshiba_acpi:
- change turn_on_panel_on_resume to static
- Remove duplicate include
- Set correct parent for input device.
- Add fan RPM reading (hwmon interface)
- Add fan RPM reading (internals)
- Stop using acpi_video_set_dmi_backlight_type()
- Fix ECO LED control on Toshiba Z830
- Battery charge mode in toshiba_acpi (internals)
- Battery charge mode in toshiba_acpi (sysfs)
wmi:
- Drop forward declaration of static functions
- Allow duplicate GUIDs for drivers that use struct wmi_driver
x86-android-tablets:
- Fix broken touchscreen on Chuwi Hi8 with Windows BIOS
-----BEGIN PGP SIGNATURE-----
iQFIBAABCAAyFiEEuvA7XScYQRpenhd+kuxHeUQDJ9wFAmM9eLgUHGhkZWdvZWRl
QHJlZGhhdC5jb20ACgkQkuxHeUQDJ9zIzAf+JG058wucK0Zsnu4POzGp+uHjnWuu
AJUmTeRvCD7MidwIv5PiwEtTucQ8OuXYR+tPc8LIwCVZtc05FBmh7Y8le/CX0SS6
n9EZIvCk3Owosti5w2TPnCK920kh+Wfxl/fmfDbpi6+lpAL8r+F/mZEGKGFdZpWu
Q+yM/eyxwPH8q8gjrXOUC7rN43aYeO3OCpNG3GYkQ/2S5qrjuz39dXhNVzdSsxm7
aYOqJRNjZQEjQ3kJcp65kC6oWp3UaI1zdpGwhBG/SY8BCtCYZzlRy7gN2FCJfAa/
EyYayOvdy0zNwewbIYzck4W80hUDtfidgZgZ9crQscO/JjbGi6LhveD4YA==
=afGw
-----END PGP SIGNATURE-----
Merge tag 'platform-drivers-x86-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
- AMD Platform Management Framework (PMF) driver with AMT and QnQF
support
- AMD PMC: Improved logging for debugging s2idle issues
- Big refactor of the ACPI/x86 backlight handling, ensuring that we
only register 1 /sys/class/backlight device per LCD panel
- Microsoft Surface:
- Surface Laptop Go 2 support
- Surface Pro 8 HID sensor support
- Asus WMI:
- Lots of cleanups
- Support for TUF RGB keyboard backlight control
- Add support for ROG X13 tablet mode
- Siemens Simatic: IPC227G and IPC427G support
- Toshiba ACPI laptop driver: Fan hwmon and battery ECO mode support
- tools/power/x86/intel-speed-select: Various improvements
- Various cleanups
- Various small bugfixes
* tag 'platform-drivers-x86-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (153 commits)
platform/x86: use PLATFORM_DEVID_NONE instead of -1
platform/x86/amd: pmc: Dump idle mask during "check" stage instead
platform/x86/intel/wmi: thunderbolt: Use dev_groups callback
platform/x86/amd: pmc: remove CONFIG_DEBUG_FS checks
platform/surface: Split memcpy() of struct ssam_event flexible array
platform/x86: compal-laptop: Get rid of a few forward declarations
platform/x86: intel-uncore-freq: Use sysfs_emit() to instead of scnprintf()
platform/x86: dell-smbios-base: Use sysfs_emit()
platform/x86/amd/pmf: Remove unused power_delta instances
platform/x86/amd/pmf: install notify handler after acpi init
Documentation/ABI/testing/sysfs-amd-pmf: Add ABI doc for AMD PMF
platform/x86/amd/pmf: Add sysfs to toggle CnQF
platform/x86/amd/pmf: Add support for CnQF
platform/x86/amd: pmc: Fix build without debugfs
platform/x86: hp-wmi: Support touchpad on/off
platform/x86: int3472/discrete: Drop a forward declaration
platform/x86: toshiba_acpi: change turn_on_panel_on_resume to static
platform/x86: wmi: Drop forward declaration of static functions
platform/x86: toshiba_acpi: Remove duplicate include
platform/x86: msi-laptop: Change DMI match / alias strings to fix module autoloading
...
I'm getting warnings:
/tmp/next/build/drivers/leds/leds-pca963x.c: In function 'pca963x_register_leds':
/tmp/next/build/drivers/leds/leds-pca963x.c:355:3: error: this 'if' clause does not guard...
+[-Werror=misleading-indentation]
355 | if (hw_blink)
| ^~
/tmp/next/build/drivers/leds/leds-pca963x.c:357:4: note: ...this statement, but the latter is
+misleadingly indented as if it were guarded by the 'if'
357 | led->blinking = false;
| ^~~
cc1: all warnings being treated as errors
Fix the indentation to make them go away.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
LEDs would behave differently depending on the blink hardware
acceleration configuration. This commit will make LEDs respond exactly
the same independently of the hardware acceleration status.
In other words, if you had two pca963x, side by side, one with blink
hardware acceleration "ON" and the other "OFF; and performed some
arbitrary sequence of API calls (e.g. turn on/off, change brightness,
change blink mode, etc.) you probably would end with not matching LED
states.
'pca963x software blink' and 'leds-gpio' behavior were used as
reference.
Actual chip used to validate this change: pca9634
Some of the unmatched behaviors being fixed are (when hw blink was "ON")
- Leds would stop blinking when the brightness was changed.
- Leds would persist their blinking mode even after being
turned off (brightness = 0).
- Leds would only blink if another led was solid (pca963x will be
forced out of low power)
Signed-off-by: Bernardo Rodrigues <bernardocrodrigues@live.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
This adds support of the Siemens Simatic IPC227G. Its LEDs are connected
to GPIO pins provided by the gpio-f7188x module. We make sure that
gets loaded, if not enabled in the kernel config no LED support will be
available.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Henning Schild <henning.schild@siemens.com>
Link: https://lore.kernel.org/r/20220825104422.14156-6-henning.schild@siemens.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The value returned by an i2c driver's remove function is mostly ignored.
(Only an error message is printed if the value is non-zero that the
error is ignored.)
So change the prototype of the remove function to return no value. This
way driver authors are not tempted to assume that passing an error to
the upper layer is a good idea. All drivers are adapted accordingly.
There is no intended change of behaviour, all callbacks were prepared to
return 0 before.
Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com>
Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au>
Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Crt Mori <cmo@melexis.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/*
Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5
Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio
Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860
Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b
Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes
Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Returning an error value in an i2c remove callback results in a generic
error message being emitted by the i2c core, but otherwise it doesn't
make a difference. The device goes away anyhow and the devm cleanups are
called.
So instead of triggering the generic i2c error message, emit a more
helpful message if a problem occurs and return 0 to suppress the generic
message.
This patch is a preparation for making i2c remove callbacks return void.
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
The mutex might still be in use until the devm cleanup callback
devm_led_classdev_flash_release() is called. This only happens some time
after lm3601x_remove() completed.
Fixes: e63a744871 ("leds: lm3601x: Convert class registration to device managed")
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Returning an error value from an i2c remove callback results in an error
message being emitted by the i2c core, but otherwise it doesn't make a
difference. The device goes away anyhow and the devm cleanups are
called.
As lm3697_remove() already emits an error message on failure and the
additional error message by the i2c core doesn't add any useful
information, don't pass the error value up the stack. Instead continue
to clean up and return 0.
This patch is a preparation for making i2c remove callbacks return void.
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
fixups for multicolor. Clevo-mail driver got disabled, it needs API
fix.
-----BEGIN PGP SIGNATURE-----
iF0EABECAB0WIQRPfPO7r0eAhk010v0w5/Bqldv68gUCYvEUpgAKCRAw5/Bqldv6
8vDGAKCYdETEgfPsExMizqACzkcQWYzpUgCfetiY56Wkr1vLx+kCBvHS9m6wC+8=
=MT+Z
-----END PGP SIGNATURE-----
Merge tag 'leds-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds
Pull LED updates from Pavel Machek:
"A new driver for bcm63138, is31fl319x updates, fixups for multicolor.
The clevo-mail driver got disabled, it needs an API fix"
* tag 'leds-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: (23 commits)
leds: is31fl319x: use simple i2c probe function
leds: is31fl319x: Fix devm vs. non-devm ordering
leds: is31fl319x: Make use of dev_err_probe()
leds: is31fl319x: Make use of device properties
leds: is31fl319x: Cleanup formatting and dev_dbg calls
leds: is31fl319x: Add support for is31fl319{0,1,3} chips
leds: is31fl319x: Move chipset-specific values in chipdef struct
leds: is31fl319x: Use non-wildcard names for vars, structs and defines
leds: is31fl319x: Add missing si-en compatibles
dt-bindings: leds: pwm-multicolor: document max-brigthness
leds: turris-omnia: convert to use dev_groups
leds: leds-bcm63138: get rid of LED_OFF
leds: add help info about BCM63138 module name
dt-bindings: leds: leds-bcm63138: unify full stops in descriptions
dt-bindings: leds: lp50xx: fix LED children names
dt-bindings: leds: class-multicolor: reference class directly in multi-led node
leds: bcm63138: add support for BCM63138 controller
dt-bindings: leds: add Broadcom's BCM63138 controller
leds: clevo-mail: Mark as broken pending interface fix
leds: pwm-multicolor: Support active-low LEDs
...
The i2c probe functions here don't use the id information provided in
their second argument, so the single-parameter i2c probe function
("probe_new") can be used instead.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
When non-devm resources are allocated they mustn't be followed by
devm allocations, otherwise it will break the tear down ordering
and might lead to crashes or other bugs during ->remove() stage.
Fix this by wrapping mutex_destroy() call with
devm_add_action_or_reset().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Simplify the error handling in probe function by switching from
dev_err() to dev_err_probe().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.
Add mod_devicetable.h include.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Fix remaining non-standard place for comments.
Remove remaining dev_dbg after regmap_read in is31fl3196_brightness_set.
Remove __func__ in dev_dbg calls, instead adding "channel" string to
describe the first displayed value.
Change remaining container_of() call to be on one line,
as well as a few others.
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Allow setting chips' specifics in chipdef struct by adding fields for:
- the reset register address
- a pointer to a regmap_config struct
- a pointer to a brightness_set function
- current default, min and max values
- a boolean to distinguish 319{0,1,3} and 319{6,9} chips
and use those fields in places where distinction has to be made.
The fields for 319{0,1,3} still point to 319{6,9} values.
No functional change.
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
The driver core supports the ability to handle the creation and removal
of device-specific sysfs files in a race-free manner. Take advantage of
that by converting this driver to use this by moving the sysfs
attributes into a group and assigning the dev_groups pointer to it.
Cc: Pavel Machek <pavel@ucw.cz>
Cc: linux-leds@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
The whole "enum led_brightness" is marked as obsolete. Replace it with a
(non-)zero check.
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
It's what we do for all other LEDs drivers.
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
It's a new controller first introduced in BCM63138 SoC. Later it was
also used in BCM4908, some BCM68xx and some BCM63xxx SoCs.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Add support for LEDs wired up to light when the PWM output is low, just
like the regular PWM LEDs.
Signed-off-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
When requesting a PWM it might return -EPROBE_DEFER if it hasn't probed
yet. This is not an error, so just propagate the -EPROBE_DEFER without
logging anything. There is already dev_err_probe for exactly this
situation.
Fixes: 9fa2762110 ("leds: Add PWM multicolor driver")
Signed-off-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Use the possessive "its" instead of the contraction "it's"
where appropriate.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: linux-leds@vger.kernel.org
Signed-off-by: Pavel Machek <pavel@ucw.cz>
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>
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: 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 second part of the multiplatform changes now converts the
Intel/Marvell PXA platform along with the rest. The patches went through
several rebases before the merge window as bugs were found, so they
remained separate.
This has to touch a lot of drivers, in particular the touchscreen,
pcmcia, sound and clk bits, to detach the driver files from the
platform and board specific header files.
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAmKZKqsACgkQmmx57+YA
GNnO/w//dgJBlkmoIIKlG2eJsvoUKwDt7MuLEMCqSqYYUSvMENFwKK66INMDIJ3l
PmKf94JadlpBm2OB2vzW+D1EtaLGX9eXZkKD+vyB1I1yFkKdzEPcAfitfrRwe58E
pR4nQd/jVL4UCY+pp442O1q9VvMpMV9P4ILJGPS/PpsD5CT9Gn8m9svIIuNuDRFd
nwpyZC3l32jVLo9iuLmwZUvxtOWI3hTqZrnxhByBhlvtnGexRsq/VhfubK2uzBi1
CyWHjqzOSmseGmsUDwv9LFqVV9YRCeisS3IElA5L0VgM0XvHKA+f9qyF7V6zI20g
y9LtqhdAtiTpE/aUrOW2LDYaM/bc7RilYZrWchoZbCEsHhV4C+ld3QoTyxvGscvG
tbznhvZKdUNX8LHS0J9NqIj1q1YGN5ei5r/C5R8DBj1q8VcTVnq3dms8xzVTd35o
xS5BbLFliiI96jc7S6LaQizXheYjAfdPhmXUAxNXvWIVQ6SXnf8/U/RB9Zzjb8hm
FH2Gu8m/Dh2MHKBBRWSVw8VahV0V7WiEaWeYuwwTbW1wUrsWiizVaPnqrt6Cq9DW
oJZgBvktWEXUQz73qrnvwo9GjcKqAxaWKWq05hHKHKuLGezsPAyIhIKr51V2xqqw
cp2OIMCsN5GYENOhHvt6BMRAI5iA4VyFDtWAqw9B6EIwno6N7Z4=
=cnSb
-----END PGP SIGNATURE-----
Merge tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull more ARM multiplatform updates from Arnd Bergmann:
"The second part of the multiplatform changes now converts the
Intel/Marvell PXA platform along with the rest. The patches went
through several rebases before the merge window as bugs were found, so
they remained separate.
This has to touch a lot of drivers, in particular the touchscreen,
pcmcia, sound and clk bits, to detach the driver files from the
platform and board specific header files"
* tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (48 commits)
ARM: pxa/mmp: remove traces of plat-pxa
ARM: pxa: convert to multiplatform
ARM: pxa/sa1100: move I/O space to PCI_IOBASE
ARM: pxa: remove support for MTD_XIP
ARM: pxa: move mach/*.h to mach-pxa/
ARM: PXA: fix multi-cpu build of xsc3
ARM: pxa: move plat-pxa to drivers/soc/
ARM: mmp: rename pxa_register_device
ARM: mmp: remove tavorevb board support
ARM: pxa: remove unused mach/bitfield.h
ARM: pxa: move clk register definitions to driver
ARM: pxa: move smemc register access from clk to platform
cpufreq: pxa3: move clk register access to clk driver
ARM: pxa: remove get_clk_frequency_khz()
ARM: pxa: pcmcia: move smemc configuration back to arch
ASoC: pxa: i2s: use normal MMIO accessors
ASoC: pxa: ac97: use normal MMIO accessors
ASoC: pxa: use pdev resource for FIFO regs
Input: wm97xx - get rid of irq_enable method in wm97xx_mach_ops
Input: wm97xx - switch to using threaded IRQ
...
The leds-trigger-pattern documentation describes how the brightness of
the LED should transition linearly from one brightness value to the
next, over the given delta_t.
But the pattern engine in the Qualcomm LPG hardware only supports
holding the brightness for each entry for the period.
This subset of patterns can be represented in the leds-trigger-pattern
by injecting zero-time transitions after each entry in the pattern,
resulting in a pattern that pattern that can be rendered by the LPG.
Rework LPG pattern interface to require these zero-time transitions, to
make it comply with this subset of patterns and reject the patterns it
can't render.
Fixes: 24e2d05d1b ("leds: Add driver for Qualcomm LPG")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Returning an error value from an i2c remove callback results in an error
message being emitted by the i2c core, but otherwise it doesn't make a
difference. The device goes away anyhow and the devm cleanups are
called.
As stk3310_set_state() already emits an error message on failure and the
additional error message by the i2c core doesn't add any useful
information, don't pass the error value up the stack. Instead continue
to clean up and return 0.
This patch is a preparation for making i2c remove callbacks return void.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
The Qualcomm LPG driver fails to probe unless PWM support is enabled so
add the missing Kconfig dependency.
Fixes: 24e2d05d1b ("leds: Add driver for Qualcomm LPG")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
