Commit Graph

6324 Commits

Author SHA1 Message Date
Pan Bian
79aae6acbe Input: cyttsp4_core - fix use after free bug
The device md->input is used after it is released. Setting the device
data to NULL is unnecessary as the device is never used again. Instead,
md->input should be assigned NULL to avoid accessing the freed memory
accidently. Besides, checking md->si against NULL is superfluous as it
points to a variable address, which cannot be NULL.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Link: https://lore.kernel.org/r/1572936379-6423-1-git-send-email-bianpan2016@163.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-11-12 17:11:26 -08:00
Lucas Stach
549766ac2a Input: synaptics-rmi4 - clear IRQ enables for F54
The driver for F54 just polls the status and doesn't even have a IRQ
handler registered. Make sure to disable all F54 IRQs, so we don't crash
the kernel on a nonexistent handler.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://lore.kernel.org/r/20191105114402.6009-1-l.stach@pengutronix.de
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-11-12 16:49:22 -08:00
Andrew Duggan
310ca2a61c Input: synaptics-rmi4 - remove unused result_bits mask
The result_bits mask is no longer used by the driver and should be
removed.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Link: https://lore.kernel.org/r/20191025002527.3189-4-aduggan@synaptics.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-11-04 16:11:51 -08:00
Andrew Duggan
5d40d95e7e Input: synaptics-rmi4 - do not consume more data than we have (F11, F12)
Currently, rmi_f11_attention() and rmi_f12_attention() functions update
the attn_data data pointer and size based on the size of the expected
size of the attention data. However, if the actual valid data in the
attn buffer is less then the expected value then the updated data
pointer will point to memory beyond the end of the attn buffer. Using
the calculated valid_bytes instead will prevent this from happening.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191025002527.3189-3-aduggan@synaptics.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-11-04 16:11:50 -08:00
Andrew Duggan
f6aabe1ff1 Input: synaptics-rmi4 - disable the relative position IRQ in the F12 driver
This patch fixes an issue seen on HID touchpads which report finger
positions using RMI4 Function 12. The issue manifests itself as
spurious button presses as described in:
https://www.spinics.net/lists/linux-input/msg58618.html

Commit 24d28e4f12 ("Input: synaptics-rmi4 - convert irq distribution
to irq_domain") switched the RMI4 driver to using an irq_domain to handle
RMI4 function interrupts. Functions with more then one interrupt now have
each interrupt mapped to their own IRQ and IRQ handler. The result of
this change is that the F12 IRQ handler was now getting called twice. Once
for the absolute data interrupt and once for the relative data interrupt.
For HID devices, calling rmi_f12_attention() a second time causes the
attn_data data pointer and size to be set incorrectly. When the touchpad
button is pressed, F30 will generate an interrupt and attempt to read the
F30 data from the invalid attn_data data pointer and report incorrect
button events.

This patch disables the F12 relative interrupt which prevents
rmi_f12_attention() from being called twice.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Reported-by: Simon Wood <simon@mungewell.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191025002527.3189-2-aduggan@synaptics.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-11-04 16:11:48 -08:00
Lucas Stach
003f01c780 Input: synaptics-rmi4 - fix video buffer size
The video buffer used by the queue is a vb2_v4l2_buffer, not a plain
vb2_buffer. Using the wrong type causes the allocation of the buffer
storage to be too small, causing a out of bounds write when
__init_vb2_v4l2_buffer initializes the buffer.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Fixes: 3a762dbd53 ("[media] Input: synaptics-rmi4 - add support for F54 diagnostics")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191104114454.10500-1-l.stach@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-11-04 16:11:47 -08:00
Dixit Parmar
b1a402e75a Input: st1232 - fix reporting multitouch coordinates
For Sitronix st1633 multi-touch controller driver the coordinates reported
for multiple fingers were wrong, as it was always taking LSB of coordinates
from the first contact data.

Signed-off-by: Dixit Parmar <dixitparmar19@gmail.com>
Reviewed-by: Martin Kepplinger <martink@posteo.de>
Cc: stable@vger.kernel.org
Fixes: 351e0592bf ("Input: st1232 - add support for st1633")
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204561
Link: https://lore.kernel.org/r/1566209314-21767-1-git-send-email-dixitparmar19@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-10-21 10:15:03 -07:00
Kai-Heng Feng
c324345ce8 Revert "Input: elantech - enable SMBus on new (2018+) systems"
This reverts commit 883a2a80f7.

Apparently use dmi_get_bios_year() as manufacturing date isn't accurate
and this breaks older laptops with new BIOS update.

So let's revert this patch.

There are still new HP laptops still need to use SMBus to support all
features, but it'll be enabled via a whitelist.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191001070845.9720-1-kai.heng.feng@canonical.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-10-15 17:42:47 -07:00
Evan Green
363c53875a Input: synaptics-rmi4 - avoid processing unknown IRQs
rmi_process_interrupt_requests() calls handle_nested_irq() for
each interrupt status bit it finds. If the irq domain mapping for
this bit had not yet been set up, then it ends up calling
handle_nested_irq(0), which causes a NULL pointer dereference.

There's already code that masks the irq_status bits coming out of the
hardware with current_irq_mask, presumably to avoid this situation.
However current_irq_mask seems to more reflect the actual mask set
in the hardware rather than the IRQs software has set up and registered
for. For example, in rmi_driver_reset_handler(), the current_irq_mask
is initialized based on what is read from the hardware. If the reset
value of this mask enables IRQs that Linux has not set up yet, then
we end up in this situation.

There appears to be a third unused bitmask that used to serve this
purpose, fn_irq_bits. Use that bitmask instead of current_irq_mask
to avoid calling handle_nested_irq() on IRQs that have not yet been
set up.

Signed-off-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Andrew Duggan <aduggan@synaptics.com>
Link: https://lore.kernel.org/r/20191008223657.163366-1-evgreen@chromium.org
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-10-11 17:24:45 -07:00
Hans de Goede
bcf0595789 Input: soc_button_array - partial revert of support for newer surface devices
Commit c394159310 ("Input: soc_button_array - add support for newer
surface devices") not only added support for the MSHW0040 ACPI HID,
but for some reason it also makes changes to the error handling of the
soc_button_lookup_gpio() call in soc_button_device_create(). Note ideally
this seamingly unrelated change would have been made in a separate commit,
with a message explaining the what and why of this change.

I guess this change may have been added to deal with -EPROBE_DEFER errors,
but in case of the existing support for PNP0C40 devices, treating
-EPROBE_DEFER as any other error is deliberate, see the comment this
commit adds for why.

The actual returning of -EPROBE_DEFER to the caller of soc_button_probe()
introduced by the new error checking causes a serious regression:

On devices with so called virtual GPIOs soc_button_lookup_gpio() will
always return -EPROBE_DEFER for these fake GPIOs, when this happens
during the second call of soc_button_device_create() we already have
successfully registered our first child. This causes the kernel to think
we are making progress with probing things even though we unregister the
child before again before we return the -EPROBE_DEFER. Since we are making
progress the kernel will retry deferred-probes again immediately ending
up stuck in a loop with the following showing in dmesg:

[  124.022697] input: gpio-keys as /devices/platform/INTCFD9:00/gpio-keys.0.auto/input/input6537
[  124.040764] input: gpio-keys as /devices/platform/INTCFD9:00/gpio-keys.0.auto/input/input6538
[  124.056967] input: gpio-keys as /devices/platform/INTCFD9:00/gpio-keys.0.auto/input/input6539
[  124.072143] input: gpio-keys as /devices/platform/INTCFD9:00/gpio-keys.0.auto/input/input6540
[  124.092373] input: gpio-keys as /devices/platform/INTCFD9:00/gpio-keys.0.auto/input/input6541
[  124.108065] input: gpio-keys as /devices/platform/INTCFD9:00/gpio-keys.0.auto/input/input6542
[  124.128483] input: gpio-keys as /devices/platform/INTCFD9:00/gpio-keys.0.auto/input/input6543
[  124.147141] input: gpio-keys as /devices/platform/INTCFD9:00/gpio-keys.0.auto/input/input6544
[  124.165070] input: gpio-keys as /devices/platform/INTCFD9:00/gpio-keys.0.auto/input/input6545
[  124.179775] input: gpio-keys as /devices/platform/INTCFD9:00/gpio-keys.0.auto/input/input6546
[  124.202726] input: gpio-keys as /devices/platform/INTCFD9:00/gpio-keys.0.auto/input/input6547
<continues on and on and on>

And 1 CPU core being stuck at 100% and udev hanging since it is waiting
for the modprobe of soc_button_array to return.

This patch reverts the soc_button_lookup_gpio() error handling changes,
fixing this regression.

Fixes: c394159310 ("Input: soc_button_array - add support for newer surface devices")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205031
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Maximilian Luz <luzmaximilian@gmail.com>
Acked-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20191005105551.353273-1-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-10-08 16:45:56 -07:00
Yauhen Kharuzhy
bd3b848023 Input: goodix - add support for 9-bytes reports
Some variants of Goodix touchscreen firmwares use 9-bytes finger
report format instead of common 8-bytes format.

This report format may be present as:

struct goodix_contact_data {
        uint8_t unknown1;
        uint8_t track_id;
        uint8_t unknown2;
        uint16_t x;
        uint16_t y;
        uint16_t w;
}__attribute__((packed));

Add support for such format and use it for Lenovo Yoga Book notebook
(which uses a Goodix touchpad as a touch keyboard).

Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-10-02 14:13:27 -07:00
Marco Felsch
afce285b85 Input: da9063 - fix capability and drop KEY_SLEEP
Since commit f889beaaab ("Input: da9063 - report KEY_POWER instead of
KEY_SLEEP during power key-press") KEY_SLEEP isn't supported anymore. This
caused input device to not generate any events if "dlg,disable-key-power"
is set.

Fix this by unconditionally setting KEY_POWER capability, and not
declaring KEY_SLEEP.

Fixes: f889beaaab ("Input: da9063 - report KEY_POWER instead of KEY_SLEEP during power key-press")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-10-02 14:04:41 -07:00
Colin Ian King
410f25de46 Input: sidewinder - make array seq static const, makes object smaller
Don't populate the array seq on the stack but instead make it
static const. Makes the object code smaller by 30 bytes.

Before:
   text	   data	    bss	    dec	    hex	filename
  22284	   3184	      0	  25468	   637c	drivers/input/joystick/sidewinder.o

After:
   text	   data	    bss	    dec	    hex	filename
  22158	   3280	      0	  25438	   635e	drivers/input/joystick/sidewinder.o

(gcc version 9.2.1, amd64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-09-05 17:56:33 -07:00
Dmitry Torokhov
4370b231d1 Input: reset device timestamp on sync
We need to reset input device's timestamp on input_sync(), otherwise
drivers not using input_set_timestamp() will end up with a stale
timestamp after their clients consume first input event.

Fixes: 3b51c44bd6 ("Input: allow drivers specify timestamp for input events")
Reported-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-09-05 17:56:32 -07:00
Dmitry Torokhov
4b6253fa73 Input: bu21013_ts - switch to using standard touchscreen properties
This switches the driver over to the standard touchscreen properties for
coordinate transformation, while keeping old bindings working as well.

Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-09-02 09:07:38 -07:00
Dmitry Torokhov
307ec663f6 Input: bu21013_ts - switch to using MT-B (slotted) protocol
MT-B protocol is more efficient and everyone expects it. We use in-kernel
tracking to identify contacts.

Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-09-02 09:07:38 -07:00
Dmitry Torokhov
18aa4d6b67 Input: bu21013_ts - fix suspend when wake source
If the touchscreen is configured as wakeup source we should not be cutting
off power to it.

Also, now that the driver relies on I2C client to supply IRQ, we do not
need to explicitly enable and disable IRQ for wakeup: if device is created
as wakeup source, I2C core will mark interrupt as wakeup one.

Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-09-02 09:07:37 -07:00
Dmitry Torokhov
db3e34d403 Input: bu21013_ts - use interrupt from I2C client
Instead of trying to map INT GPIO to interrupt, let's use one supplied by
I2C client. If there is none - bail. This will also allow us to treat INT
GPIO as optional, as per the binding.

Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-09-02 09:07:18 -07:00
Dmitry Torokhov
1eb7b4cacc Input: bu21013_ts - remove support for platform data
There are no current users of the platform data in the tree, and
any new users should either use device tree, or static device
properties to describe the device.

This change drop the platform data definition and handling and moves the
driver over to generic device properties API. We also drop support for the
external clock. If it is needed we will have to extend the bindings to
supply the clock reference and handle it properly in the driver.

Also, wakeup setting should be coming from I2C client.

Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-09-02 09:07:17 -07:00
Dmitry Torokhov
caeb1aae28 Input: bu21013_ts - convert to using managed resources
This allows trimming error unwinding and device removal handling.

Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-09-02 09:07:17 -07:00
Dmitry Torokhov
a5ee351d5b Input: bu21013_ts - remove useless comments
The comments for individual functions in the driver do not provide any
additional information beyond what function names indicate.

Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-09-02 09:07:16 -07:00
Dmitry Torokhov
0570bab054 Input: bu21013_ts - annotate supend/resume methods as __maybe_unused
Instead if #ifdef-ing out suspend and resume methods, let's mark
them as __maybe_unused to get better compile time coverage.

Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-09-02 09:06:53 -07:00
Dmitry Torokhov
a866781e84 Input: bu21013_ts - rename some variables
"bu21013_data" and "struct bu21013_ts_data" are a tad long, let's call them
"ts" and "struct bu21013_ts".

Also rename retval to error in bu21013_init_chip() and adjust formatting;
i2c_smbus_write_byte_data() returns negative on error and 0 on success, so
we simply test if whether erro is 0 or not.

Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-09-02 09:06:52 -07:00
Linus Walleij
a1b70a44b8 Input: bu21013_ts - convert to use GPIO descriptors
This driver can use GPIO descriptors rather than GPIO numbers
without any problems, convert it. Name the field variables after
the actual pins on the chip rather than the "reset" and "touch"
names from the devicetree bindings that are vaguely inaccurate.

No in-tree users pass GPIO numbers in platform data so drop
this. Descriptor tables can be used to get these GPIOs from a board
file if need be.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-09-02 09:06:52 -07:00
Stephen Boyd
c8a144b250 Input: i8042 - enable wakeup on a stable struct device
We don't know when the device will be added with device_add() in
serio_add_port() because serio_add_port() is called from a workqueue
that this driver schedules by calling serio_register_port(). The best we
can know is that the device will definitely not have been added yet when
the start callback is called on the serio device.

While it hasn't been shown to be a problem, proactively move the wakeup
enabling calls to the start hook so that we don't race with the
workqueue calling device_add(). This will avoid racy situations where
code tries to add wakeup sysfs attributes for this device from
dpm_sysfs_add() but the path in device_set_wakeup_capable() has already
done so.

Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-29 14:42:11 -07:00
Enrico Weigelt
53119e5134 Input: soc_button_array - use platform_device_register_resndata()
The registration of gpio-keys device can be written much shorter
by using the platform_device_register_resndata() helper.

Signed-off-by: Enrico Weigelt <info@metux.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-20 14:15:37 -07:00
Hui Wang
cfd8579ddc Input: psmouse - drop all unneeded functions from mouse headers
Recently we had a building error if we enable the MOUSE_PS2_ALPS while
disable the MOUSE_PS2_TRACKPOINT, and was fixed by 49e6979e7e
("Input: psmouse - fix build error of multiple definition").

We could improve that fix by dropping all unneeded functions and
CONFIG_MOUSE_ guards from the header, it is safe to do that since
those functions are not directly called by psmouse-base.c anymore.

Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-20 14:15:36 -07:00
Dmitry Torokhov
e95656ea15 Input: add support for polling to input devices
Separating "normal" and "polled" input devices was a mistake, as often we
want to allow the very same device work on both interrupt-driven and
polled mode, depending on the board on which the device is used.

This introduces new APIs:

- input_setup_polling
- input_set_poll_interval
- input_set_min_poll_interval
- input_set_max_poll_interval

These new APIs allow switching an input device into polled mode with sysfs
attributes matching drivers using input_polled_dev APIs that will be
eventually removed.

Tested-by: Michal Vokáč <michal.vokac@ysoft.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-20 12:04:07 -07:00
Jason Gerecke
2da9d2b5b9 Input: wacom_w8001 - allocate additional space for 'phys'
GCC warns that the output of our call to 'snprintf' in 'w8001_connect'
may be truncated since both 'serio->phys' and 'w8001->phys' are 32 bytes
in length. Increase the amount of space allocated for the latter to
compensate.

Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-20 12:03:46 -07:00
Fei Shao
62c3801619 Input: cros_ec_keyb - add back missing mask for event_type
In the previous patch we didn't mask out event_type in case statement,
so switches are always picked instead of buttons, which results in
ChromeOS devices misbehaving when power button is pressed.
This patch adds back the missing mask.

Fixes: d096aa3eb6 ("Input: cros_ec_keyb: mask out extra flags in event_type")
Signed-off-by: Fei Shao <fshao@chromium.org>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-16 11:30:44 -07:00
Stephen Boyd
0bec8b7e5c Input: remove dev_err() usage after platform_get_irq()
We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.

// <smpl>
@@
expression ret;
struct platform_device *E;
@@

ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);

if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>

While we're here, remove braces on if statements that only have one
statement (manually).

Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-14 10:49:01 -07:00
Greg Kroah-Hartman
f5d4c647d0 Input: applespi - no need to check return value of debugfs_create functions
When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-12 00:10:59 -07:00
Greg Kroah-Hartman
042cc4c778 Input: edt-ft5x06 - no need to check return value of debugfs_create functions
When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-12 00:10:58 -07:00
Andy Shevchenko
656d29ce0f Input: matrix-keymap - switch to use device_property_count_u32()
Use use device_property_count_u32() directly, that makes code neater.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-12 00:03:13 -07:00
Andy Shevchenko
9ed05c94f2 Input: atmel_mxt_ts - switch to use device_property_count_u32()
Use use device_property_count_u32() directly, that makes code neater.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-12 00:03:12 -07:00
Andy Shevchenko
104c995fd6 Input: hideep - switch to use device_property_count_u32()
Use use device_property_count_u32() directly, that makes code neater.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-12 00:03:11 -07:00
Andy Shevchenko
6e57ce76d0 Input: mpr121 - switch to use device_property_count_u32()
Use use device_property_count_u32() directly, that makes code neater.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-12 00:03:10 -07:00
Greg Kroah-Hartman
d99995a4f0 Input: axp20x-pek - convert driver to use dev_groups
Drivers now have the option to have the driver core create and remove any
needed sysfs attribute files.  So take advantage of that and do not
register "by hand" a sysfs group of attributes.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-12 00:02:39 -07:00
Greg Kroah-Hartman
cf1b2a208d Input: gpio_keys - convert driver to use dev_groups
Drivers now have the option to have the driver core create and remove any
needed sysfs attribute files.  So take advantage of that and do not
register "by hand" a bunch of sysfs files.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-12 00:02:38 -07:00
Dmitry Torokhov
4aa31b4b61 Linux 5.3-rc4
-----BEGIN PGP SIGNATURE-----
 
 iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl1QegseHHRvcnZhbGRz
 QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGavMH/RBaR39ct3XXpPzC
 yxmKJn/n692NXFKusfsfasitGHMdFom6HaCcKx4PpzX1QHnR34LJtMd1QvwM8cHz
 FtbC68HyZBB91JOUzC38GbRufvVUsSeXg8YeBiF6BOoOP06OcOG+DKoPcKBOMXsR
 MtJmgxEyedLT7ozEPTpowVBWulELJxkbe1MCc93xDXdOqT+aMuxZBASMJIgrufS7
 uJTsJ/afHz6F29Mj6Q9lfIJJSHqSfMK/rPGP54xRdBgMWmAmNjA2aExyCK8PE/Yb
 TChsrDjDz38ePuVaWfjtwFNWlWcq0Do8vJdPuAxZDdfaJlQDXQHCWXsJjrWD6oNy
 ZhCq0zE=
 =HcEO
 -----END PGP SIGNATURE-----

Merge tag 'v5.3-rc4' into next

Sync up with mainline to bring in device_property_count_u32 andother
newer APIs.
2019-08-11 23:24:46 -07:00
Linus Torvalds
15abf14202 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - newer systems with Elan touchpads will be switched over to SMBus

 - HP Spectre X360 will be using SMbus/RMI4

 - checks for invalid USB descriptors in kbtab and iforce

 - build fixes for applespi driver (misconfigs)

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: iforce - add sanity checks
  Input: applespi - use struct_size() helper
  Input: kbtab - sanity check for endpoint type
  Input: usbtouchscreen - initialize PM mutex before using it
  Input: applespi - add dependency on LEDS_CLASS
  Input: synaptics - enable RMI mode for HP Spectre X360
  Input: elantech - annotate fall-through case in elantech_use_host_notify()
  Input: elantech - enable SMBus on new (2018+) systems
  Input: applespi - fix trivial typo in struct description
  Input: applespi - select CRC16 module
  Input: applespi - fix warnings detected by sparse
2019-08-09 15:31:19 -07:00
Arnd Bergmann
6bd744b723 Input: remove w90x900 touchscreen driver
The ARM w90x900 platform is getting removed, so this driver is obsolete.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-09 15:16:38 -07:00
Arnd Bergmann
060157e1db Input: remove w90x900 keyboard driver
The ARM w90x900 platform is getting removed, so this driver is obsolete.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-09 15:16:37 -07:00
Christophe JAILLET
26332247fb Input: synaptics - fix a typo
This should be 'synaptics', not 'synpatics'

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-09 09:46:30 -07:00
Marco Felsch
a2f99330c5 Input: ads7846 - add support for general touchscreen bindings
A few vendor specific bindings are now covered by common bindings.

Let the driver parse the common bindings to make use of common
inverting and swapping mechnism. Aslo make use of
touchscreen_report_pos() to ensure the correct inverting-swapping
order.

The vendor specific properties are used as default (backward
compatibility) and gets overwritten by common bindings.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-09 07:44:11 -07:00
Oliver Neukum
849f5ae3a5 Input: iforce - add sanity checks
The endpoint type should also be checked before a device
is accepted.

Reported-by: syzbot+5efc10c005014d061a74@syzkaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-06 09:10:57 -07:00
Gustavo A. R. Silva
37ad2e3434 Input: applespi - use struct_size() helper
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:

struct touchpad_protocol {
	...
        struct tp_finger        fingers[0];
};

Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.

So, replace the following form:

sizeof(*tp) + tp->number_of_fingers * sizeof(tp->fingers[0]);

with:

struct_size(tp, fingers, tp->number_of_fingers)

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-06 09:10:56 -07:00
Oliver Neukum
c88090dfc8 Input: kbtab - sanity check for endpoint type
The driver should check whether the endpoint it uses has the correct
type.

Reported-by: syzbot+c7df50363aaff50aa363@syzkaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-01 10:55:21 -07:00
Oliver Neukum
b55d996f05 Input: usbtouchscreen - initialize PM mutex before using it
Mutexes shall be initialized before they are used.

Fixes: 12e510dbc5 ("Input: usbtouchscreen - fix deadlock in autosuspend")
Reported-by: syzbot+199ea16c7f26418b4365@syzkaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-08-01 10:55:20 -07:00
YueHaibing
e77ff779a0 Input: applespi - add dependency on LEDS_CLASS
If applespi is enabled, but LEDs class support is not, the build fails:

drivers/input/keyboard/applespi.o: In function `applespi_probe':
applespi.c:(.text+0x1fcd): undefined reference to `devm_led_classdev_register_ext'

Add "depends on LEDS_CLASS" to the Konfig

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 038b1a05ea ("Input: add Apple SPI keyboard and trackpad driver")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-07-31 06:50:18 -07:00