Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the value
to be returned to user space.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: zhang songyi <zhang.songyi@zte.com.cn>
Link: https://lore.kernel.org/r/20220927070936.258300-1-zhang.songyi@zte.com.cnSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

The driver is using of_match_ptr() and therefore needs to include
of.h header.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220927052217.2784593-1-dmitry.torokhov@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Zero-length arrays are deprecated and we are moving towards adopting
C99 flexible-array members, instead. So, replace zero-length arrays
declarations in anonymous union with the new DECLARE_FLEX_ARRAY()
helper macro.

This helper allows for flexible-array members in unions.

Link: https://github.com/KSPP/linux/issues/193
Link: https://github.com/KSPP/linux/issues/219
Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.htmlSigned-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/YzIeJeqU73G+UI8g@workSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

We are going to clean up matrix_keymap.h from unnecessary includes,
so the driver needs to include API that it uses directly.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220923194738.927408-5-dmitry.torokhov@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

We are going to clean up matrix_keymap.h from unnecessary includes,
so the driver needs to include API that it uses directly.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220923194738.927408-4-dmitry.torokhov@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

We are going to clean up matrix_keymap.h from unnecessary includes,
so the driver needs to include API that it uses directly.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220923194738.927408-3-dmitry.torokhov@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

We are going to clean up matrix_keymap.h from unnecessary includes,
so the driver needs to include API that it uses directly.

Also let's sort includes alphabetically.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220923194738.927408-2-dmitry.torokhov@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

We are going to clean up matrix_keymap.h from unnecessary includes,
so the driver needs to include API that it uses directly.

Also let's sort includes alphabetically and drop unneeded irq.h
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220923194738.927408-1-dmitry.torokhov@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

The double `from' is duplicated in the comment, remove one.
Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Link: https://lore.kernel.org/r/20220804120800.60415-1-wangborong@cdjrlc.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Convert the PM8xxx PMIC Vibrator bindings to dt-schema.
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220917155705.2284-1-luca@z3ntu.xyzSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Legacy or non DT boot is no longer possible on systems where the
tw4030/5030 is used.

Drop the support for handling legacy pdata.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Link: https://lore.kernel.org/r/20220616153323.29464-1-peter.ujfalusi@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Returning directly makes the code clearer.
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20220608124808.51402-10-matthias.schiffer@ew.tq-group.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

rmi_f34v7_enter_flash_prog() already enables IRQs and checks the flash
status - there's no need for rmi_f34v7_start_reflash() to do the same just
before calling rmi_f34v7_enter_flash_prog().
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20220608124808.51402-9-matthias.schiffer@ew.tq-group.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

All register offsets are fixed, and a number of places even read or
write multiple registers as a block, so there is no way to support
reordering them without move involved changes. Remove the unneeded level
of indirection in the register access.
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20220608124808.51402-8-matthias.schiffer@ew.tq-group.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

A full erase is required to recover from error conditions like "Bad
Partition Table". Various individual partition erase commands can be
(and need to be) omitted, as they will fail until a new partition table
has been written.
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20220608124808.51402-7-matthias.schiffer@ew.tq-group.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

When recovering from a bad partition table (for example after an
interrupted update), a reset is necessary for the new partition table to
become effective. Without this reset, writing the core code partition
will fail with status 0x03 (Invalid Command).
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20220608124808.51402-6-matthias.schiffer@ew.tq-group.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Preparation for use of the "erase application" command, which is required
to recover from a bad partition table error condition. Rather than adding
complex fallback error paths for such errors, it seems more robust to do
the full erase unconditionally.
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20220608124808.51402-5-matthias.schiffer@ew.tq-group.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

The command register is reset to 0 when a command has completed. Check
for this condition instead of the error status, which will not accurately
reflect completion. In particular, the incorrect condition caused every
command error to be reported as a timeout.
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20220608124808.51402-4-matthias.schiffer@ew.tq-group.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Add a function that waits for the last command to complete and checks
the status, and use it where appropriate. This prepares for the subsequent
fix of the completion condition in rmi_f34_attention(), which would
previously lead to a timeout instead of a more detailed error message
whenever a command was unsuccessful with v7/v8 bootloaders.
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20220608124808.51402-3-matthias.schiffer@ew.tq-group.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Commit a6977d75 ("Input: synaptics-rmi4 - support bootloader v8 in
f34v7") allowed the F34v7 driver to probe with bootloader v8, but it did
not update various other bootloader version checks in the F34 code.

Fixes: a6977d75 ("Input: synaptics-rmi4 - support bootloader v8 in f34v7")
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20220608124808.51402-2-matthias.schiffer@ew.tq-group.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

The gpiod_count() API is defined in gpio/consumer.h. Include it.

Fixes: f8f7f47d ("Input: matrix_keypad - replace of_gpio_named_count() by gpiod_count()")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220923184632.2157-1-andriy.shevchenko@linux.intel.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

This adds a new compatible string for Elan eth3915n touchscreen controller,
which is compatible with ekth3500.
Signed-off-by: Yunlong Jia <ecs.beijing2022@gmail.com>
Suggested-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20220923083657.v5.2.Ic4e8f03868f88b8027a81bc3d414bae68978e6b7@changeidSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Add proper interrupt trigger and gpio polarity data to the binding example.
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20220914141428.2201784-5-dmitry.torokhov@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Let's use generic device properties API instead of OF-specific one.
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20220914141428.2201784-4-dmitry.torokhov@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Instead of hard-coding rising edge as the interrupt trigger, let's rely on
the platform (ACPI, DT) to configure the interrupt properly.
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20220914141428.2201784-3-dmitry.torokhov@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

This switches the driver to gpiod API and drops uses of of_get_gpio() API.
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20220914141428.2201784-2-dmitry.torokhov@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Currently there are no users of auo_pixcir_ts_platdata in the mainline, and
having it (with legacy gpio numbers) prevents us from converting the driver
to gpiod API, so let's drop it.

If, in the future, someone wants to use this driver on non-device tree,
non-ACPI system, they should use static device properties instead of
platform data.
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20220914141428.2201784-1-dmitry.torokhov@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Add a compatible for the keys found on MT6331 PMIC.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20220914103021.43593-3-angelogioacchino.delregno@collabora.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Convert the mtk-pmic-keys to DT schema format.

The old binding was missing documentation for key press/release
interrupts, even though it was supported in hardware and driver,
so support for the same was added during the conversion.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220914103021.43593-2-angelogioacchino.delregno@collabora.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Noticed this while trying to debug some unrelated issues: this laptop has
the ability to use rmi4 but doesn't by default. So let's fix that.

Tested locally, including mouse buttons, on my ThinkPad P1 G3. This might
also enable the X1 Extreme G3, but I don't have such a system to test
locally (presumably Mark can chime in if that's the case).
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20220909202127.141761-1-lyude@redhat.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Some devices expose an ultra-low-power (ULP) mode entry mask for
each channel. If the mask is set, the device cannot enter ULP so
long as the corresponding channel remains in an active state.

The vendor has advised setting the mask for any disabled channel.
To accommodate this suggestion, initially set all masks and then
clear them only if specified in the device tree.

Fixes: e505edae ("Input: add support for Azoteq IQS7222A/B/C")
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/20220908131548.48120-8-jeff@labundy.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Add a check to prevent sending undefined events, which ultimately
map to SYN_REPORT.

Fixes: e505edae ("Input: add support for Azoteq IQS7222A/B/C")
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/20220908131548.48120-7-jeff@labundy.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

According to the datasheets, writing only 0xFF is sufficient to
elicit a communication window. Remove the superfluous 0x00 from
the force communication command.

Fixes: e505edae ("Input: add support for Azoteq IQS7222A/B/C")
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/20220908131548.48120-6-jeff@labundy.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Add support for PMIC Keys of the MT6331 PMIC.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20220913123941.385349-1-angelogioacchino.delregno@collabora.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Delete the redundant word 'to'.
Signed-off-by: wangjianli <wangjianli@cdjrlc.com>
Link: https://lore.kernel.org/r/20220908131043.37099-1-wangjianli@cdjrlc.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

An effort has been made to support every official model and firmware
version I could track down info on. The following controllers _should_
have working paddles with this PR:
- Xbox Elite (**untested**)
- Xbox Elite Series 2 on early firmwares (**untested**)
- Xbox Elite Series 2 on v4 firmwares (Tested v4.8.1908.0)
- Xbox Elite Series 2 on v5 pre-BLE firmwares (**untested**)
- Xbox Elite Series 2 on v5 post-BLE firmwares (Tested v5.13.3143.0)

This patch also introduces correct handling for the Elite 1 controller
and properly suppresses paddle inputs when using a custom profile slot.

Starting with firmware v5.11, certain inputs for the Elite 2 were moved
to an extra packet that is not enabled by default.

We must first manually enable this extra packet in order to correctly
process paddle input data with these later firmwares.
Signed-off-by: Christopher Crockett <chaorace@gmail.com>
Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Tested-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20220818154411.510308-5-rojtberg@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Newer gamepads turn themselves off when the mode button is held down.
For XBOX360W gamepads we must do this in the driver.

Do not use BIT() macro for consistency within the file.
Signed-off-by: Santosh De Massari <s.demassari@gmail.com>
Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Link: https://lore.kernel.org/r/20220818154411.510308-4-rojtberg@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Suspending and resuming the system can sometimes cause the out
URB to get hung after a reset_resume. This causes LED setting
and force feedback to break on resume. To avoid this, just drop
the reset_resume callback so the USB core rebinds xpad to the
wireless pads on resume if a reset happened.

A nice side effect of this change is the LED ring on wireless
controllers is now set correctly on system resume.

Cc: stable@vger.kernel.org
Fixes: 4220f7db ("Input: xpad - workaround dead irq_out after suspend/ resume")
Signed-off-by: Cameron Gutman <aicommander@gmail.com>
Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Link: https://lore.kernel.org/r/20220818154411.510308-3-rojtberg@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

This is based on multiple commits at https://github.com/paroj/xpad

Cc: stable@vger.kernel.org
Signed-off-by: Jasper Poppe <jgpoppe@gmail.com>
Signed-off-by: Jeremy Palmer <jpalmer@linz.govt.nz>
Signed-off-by: Ruineka <ruinairas1992@gmail.com>
Signed-off-by: Cleber de Mattos Casali <clebercasali@gmail.com>
Signed-off-by: Kyle Gospodnetich <me@kylegospodneti.ch>
Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Link: https://lore.kernel.org/r/20220818154411.510308-2-rojtberg@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

STMPE driver does not require a specific node name anymore, only the
compatible is checked, update binding according to this.
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220712163345.445811-6-francesco.dolcini@toradex.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>