The dev field of struct fujitsu_bl is assigned in acpi_fujitsu_bl_add(),
but never used afterwards. brightness_changed is set in get_lcd_level()
and then its value is only printed in a debug message, so it does not
influence execution flow. Remove both fields as they are redundant.
Update the aforementioned debug message. Adjust whitespace to make
checkpatch happy.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
The comment for the get_brightness backlight device callback in
include/linux/backlight.h states that it should "return the current
backlight brightness (accounting for power, fb_blank etc.)".
fujitsu-laptop violates that premise by simply returning the value to
which ACPI function GBLL evaluates to. Make sure 0 is returned when
backlight power is turned off.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Any set_lcd_level() call can fail for one of two reasons: either
requested brightness is outside the allowed range or the ACPI method
used for setting brightness level is not available. For
bl_update_status(), the first case is handled by backlight core, which
means bl_update_status() will not even be called if requested brightness
is outside the allowed range. The second case will be logged anyway by
set_lcd_level() itself, so there is no point in generating another
message in bl_update_status(). Remove the superfluous debug message
along with a local variable that is now redundant.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Not all Fujitsu laptops support controlling backlight power through the
FUJ02E3 ACPI device. Remove the debug message informing about a failed
attempt to set backlight power as it may be confusing and the return
value of call_fext_func() is logged anyway.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Due to the way the disable_brightness_adjust module parameter is
currently handled in acpi_fujitsu_bl_add(), it can only be set to either
0 or 1, which effectively makes it a boolean. Emphasize that by
changing module parameter type to bool. Do not announce parameter value
in a debug message as it can be dynamically changed via sysfs and its
current value can also be read from there. Clean up module parameter
description.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
The value of each module parameter can be changed on the fly via sysfs.
However, the current way of handling use_alt_lcd_levels prevents the
user from dynamically switching from a value of 0 or 1 back to
autodetection as the latter is only performed upon ACPI device
instantiation. Fix this by moving autodetection (in a simplified form)
to set_lcd_level() and changing module parameter type to int. Do not
announce autodetection results in a debug message as current value of
use_alt_lcd_levels can simply be read from sysfs. Clarify module
parameter description.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
When using brightness keys and backlight device's sysfs interface
alternately, an incorrect input event might be generated for a
brightness key press. Consider the following sequence of events:
1. Set backlight brightness to 6 using brightness keys.
2. Write 4 to /sys/class/backlight/fujitsu-laptop/brightness.
3. Press the "brightness up" key.
The input event generated in this scenario would be KEY_BRIGHTNESSDOWN,
because before step 3 brightness_level would still be at 6. As the new
brightness level is established using GBLL, it would evaluate to 5
(SBLL/SBL2 sets it to 4 in step 2 and pressing the "brightness up" key
increases it by 1). This in turn would cause acpi_fujitsu_bl_notify()
to observe a 6 -> 5 change, i.e. a decrease in brightness, while screen
brightness would in fact be increased.
Fix this by updating brightness_level in set_lcd_level.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
acpi_execute_simple_method() takes a method parameter which tells it to
look for the given method underneath the given handle, so calling
acpi_get_handle() beforehand is redundant. Replace the call to
acpi_get_handle() with a call to acpi_execute_simple_method(), thus
eliminating the need for a local variable storing the handle. Update
debug message to reflect this change. Also do not assign a default
value to status as it has no influence on execution flow.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Depending on the value of the use_alt_lcd_levels module parameter, one
of two functions is used for setting LCD brightness level. These
functions are almost identical and only differ in the name of the ACPI
method they call. Instead of checking the value of use_alt_lcd_levels
at each call site, move that check to set_lcd_level() and get rid of
set_lcd_level_alt().
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Use a managed backlight device to get rid of acpi_fujitsu_bl_remove().
Change the parent of the backlight device from NULL to the FUJ02B1 ACPI
device as the latter is required for the backlight device to work.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
The backlight part of fujitsu-laptop is only used by laptops which are
incapable of using the standard ACPI video interface for handling
brightness changes. Conversely, on laptops which are capable of using
the latter, no vendor-specific ACPI calls should be made unless
explicitly requested by the user. Bail out immediately from
acpi_fujitsu_bl_add() unless using the vendor-specific interface was
either explicitly requested by the user or automatically selected by the
kernel.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Update debug message logged when the acpi_evaluate_integer() call inside
call_fext_func() fails so that it covers a broader set of possible
errors.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
A new call to SCU intel_scu_ipc_raw_command() writes SPTR and DPTR
registers before sending a command.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
For better maintainability and readability introduce a macro
for device ID table.
No functional change intended.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The driver is bound to the devices based on their PCI IDs.
There is no need to do an additional check.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Device pointer is used as a flag that everything is prepared.
Nevertheless the assignment happened quite before and there is a window
when a caller can get weird results or even crashes since not all fields
are initialized yet.
Rearrange initialization sequence in ->probe() to prepare everything
before use.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
There is no point in registering I2C bus notifier if DMI data does not
match.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
[andy: updated due to previous patch changed]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
I2C bus has both i2c clients and adapter devices, so we must be careful in
notifier code and verify that we are actually dealing with an i2c client
before using it as such.
Fixes: cef9dd85ac ("platform/x86: add support for devices with Silead...")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
[andy: simplified silead_ts_dmi_add_props() change]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Asus laptop X302UA starts up with Wi-Fi disabled,
without a way to enable it. Set wapf=4 to fix the problem.
Signed-off-by: Santeri Toivonen <santeri.toivonen@vatsul.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Rename call_fext_func() arguments so that each argument's name signifies
its role:
- cmd -> func: sub-function to call (flags, buttons etc.),
- arg0 -> op: operation to perform (get, set, get capabilities etc.),
- arg1 -> feature: feature to act on (e.g. which LED), if relevant,
- arg2 -> state: state to set (e.g. LED on or off), if relevant.
Adjust whitespace to make checkpatch happy.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
acpi_evaluate_integer() takes a pathname parameter which contains the
name of the entity to evaluate underneath the given handle, so calling
acpi_get_handle() beforehand is redundant. Replace the call to
acpi_get_handle() with a call to acpi_evaluate_integer(), thus
eliminating the need for a local variable storing the handle. Adjust
whitespace to make checkpatch happy.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Set values of FUNC call parameters in a designated initializer. Do not
initialize status and handle variables as the values these are
initialized to have no influence on execution flow. Use an array
variable instead of the address of the first element of that array.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Remove the keycode[1-5] fields from struct fujitsu_bl as they are not
needed any more as a result of the sparse keymap migration.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Some laptop models need to have different keycodes assigned to hotkey
scancodes. Change the sparse keymap upon a DMI match, before the hotkey
input device is setup.
Instead of using three different callbacks in the DMI match table,
simplify code by using the driver_data field of struct dmi_system_id to
supply the requested keymap to a common callback. Also merge keymaps
for S6410 and S6420 as they are identical.
Rename fujitsu_dmi_table to fujitsu_laptop_dmi_table to emphasize it is
no longer used by the backlight part of fujitsu-laptop. Adjust
whitespace to make checkpatch happy.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Simplify hotkey event generation by using a sparse keymap. As sparse
keymap operates on scancodes instead of keycodes, adjust variable names
and debug messages accordingly.
This patch only handles the default keymap for clarity.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
[dvhart: correct flag passed to call_fext_func in acpi_fujitsu_laptop_notify]
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Use a managed input device for hotkey events in order to simplify two
error paths and one cleanup function while also reducing the number of
local variables required. Remove double assignment to make checkpatch
happy.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Simplify error handling in acpi_fujitsu_laptop_add() by moving code
responsible for setting up the input device to a separate function.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Simplify brightness key event generation by using a sparse keymap.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Use a managed input device for brightness events in order to simplify
two error paths and one cleanup function while also reducing the number
of local variables required. Remove double assignment to make
checkpatch happy.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Simplify error handling in acpi_fujitsu_bl_add() by moving code
responsible for setting up the input device to a separate function.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Merge branch 'dell-laptop-changes-for-4.12' of
git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds.git
to avoid linux-next merge conflict with dell-laptop.c.
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Add an entry providing the necessary info to make the touchscreen work
on various tablets based on the Insyde 7W whitebox tablet.
This has been tested on a DEXP Ursus 7W tablet.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Now that device_add_properties takes a const property_entry * rather
then a non-const one we can constify the properties arrays.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Make dell-wmi notify on hotkey kbd brightness changes, listen for this
in dell-laptop and call led_classdev_notify_brightness_hw_changed.
This will allow userspace to monitor (poll) for brightness changes on
these LEDs caused by the hotkey.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
The kbd led code has multiple entry points each of which modifies the
kbd_state by reading it, modifying a copy, writing the copy and on
error setting the modified copy writing back the original state.
This is racy, so add a mutex protection the read-modify-write cycle
on each of the entry points.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Return -EINVAL immediately on invalid input, rather then doing
the straight path in an if block and returning -EINVAL at the end
of the function.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
There are several cases where events handled in one of the dell-* drivers
need to be propagated to another dell-* driver.
This commit adds 3 generic functions:
dell_laptop_register_notifier()
dell_laptop_unregister_notifier()
dell_laptop_call_notifier()
It currently only defines 1 action:
DELL_LAPTOP_KBD_BACKLIGHT_BRIGHTNESS_CHANGED
Which is intended to propagate kbd_backlight_brightness_changed wmi
events from dell-wmi to dell-laptop (which contains the actual kbd
backlight driver).
These functions are put in dell-smbios as both dell-wmi and dell-laptop
use smbios functions and I do not want to put the notifier head in
either driver, as that will make the 2 drivers depend on each other.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
When debugging the JIT on an embedded platform or cross build
environment, libbfd may not be available, making it impossible to run
bpf_jit_disasm natively.
Add an option to emit a binary image of the JIT code to a file. This
file can then be disassembled off line. Typical usage in this case
might be (pasting mips64 dmesg output to cat command):
$ cat > jit.raw
$ bpf_jit_disasm -f jit.raw -O jit.bin
$ mips64-linux-gnu-objdump -D -b binary -m mips:isa64r2 -EB jit.bin
Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Field FL/TPL in register TDES3 is not correctly set on GMAC4.
TX appears to be functional on GMAC 4.10a even if this field is not set,
however, to avoid relying on undefined behavior, set the length in TDES3.
The field has a different meaning depending on if the TSE bit in TDES3
is set or not (TSO). However, regardless of the TSE bit, the field is
not optional. The field is already set correctly when the TSE bit is set.
Since there is no limit for the number of descriptors that can be
used for a single packet, the field should be set to the sum of
the buffers contained in:
[<desc with First Descriptor bit set> ... <desc n> ...
<desc with Last Descriptor bit set>], which should be equal to skb->len.
Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Save the filter tid while creating the server filter, which is used
later to retrieve the corresponding filter instance while handling
the filter reply.
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Telit LE920A4 uses the same pid 0x1201 of LE920, but modem
implementation is different, since it requires DTR to be set for
answering to qmi messages.
This patch replaces QMI_FIXED_INTF with QMI_QUIRK_SET_DTR: tests on
LE920 have been performed in order to verify backward compatibility.
Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Revert commit 57707a9a77 (ACPICA: Resources: Not a valid resource if
buffer length too long) as it is reported to prevent the TPM module
from loading on Lenovo X60 with Coreboot.
It also causes new confusing warnings to show up in the kernel log.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=195311
Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
- Make the Acer Chromebook keyboard work again with the Intel
Cherryview driver.
- Fix a merge error in the Exynos 5433 driver.
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Merge tag 'pinctrl-v4.11-5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Two pin control fixes arriving late, these are hopefully the last pin
control fixes I send this kernel cycle. A Chromebook and an Exynos SoC
thingie.
The Exynos patch is pretty big, it is fixing unbroken a breakage
caused by yours truly when trying to figure out the merge mess with
the different Samsung platforms for this merge window. Sorry about
that. We have countered this situation by assigning a Samsung pin
control submaintainer to catch stuff earlier.
Summary:
- Make the Acer Chromebook keyboard work again with the Intel
Cherryview driver.
- Fix a merge error in the Exynos 5433 driver"
* tag 'pinctrl-v4.11-5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: cherryview: Add a quirk to make Acer Chromebook keyboard work again
pinctrl: samsung: Add missing part for PINCFG_TYPE_DRV of Exynos5433
It is required to know the PWM clock source frequency to calculate the
PWM period.
In driver, the clock source frequency of the PWM does not get change
and, hence, get the clock source frequency in driver init. Get this
values later for period calculation from pwm_config().
This will help in avoiding the clock call for getting clock rate in the
pwm_config() each time.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
GPIO-only driver operation never clears the SLEEP bit, which can cause
the GPIOs to become unusable.
Example:
1. user requests first PWM -> driver clears SLEEP bit
2. user frees last PWM -> driver sets SLEEP bit
3. user requests GPIO
4. user switches GPIO on -> output does not turn on
because SLEEP bit is set
Prevent this behaviour by letting the runtime PM framework control the
SLEEP bit. This will put the chip to SLEEP if no PWMs/GPIOs are exported
or in use.
Fixes: bccec89f0a ("Allow any of the 16 PWMs to be used as a GPIO")
Reported-by: Sven Van Asbroeck <TheSven73@googlemail.com>
Signed-off-by: Sven Van Asbroeck <TheSven73@googlemail.com>
Suggested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
drivers/pwm/pwm-mediatek.c:210:3-8: No need to set .owner here. The core will do it.
Remove .owner field if calls are used which set it automatically
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
CC: John Crispin <john@phrozen.org>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
For very short periods, the result of the division might overflow the
unsigned long hz variable (on 32-bit architectures). Avoid that by
making it an unsigned long long. While at it, also remove an unneeded
local variable whose only purpose is to store a temporary computation.
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
