Commit Graph

5838 Commits

Author SHA1 Message Date
Ben Hutchings
50fc7b6195 Input: elan_i2c_smbus - fix more potential stack buffer overflows
Commit 40f7090bb1 ("Input: elan_i2c_smbus - fix corrupted stack")
fixed most of the functions using i2c_smbus_read_block_data() to
allocate a buffer with the maximum block size.  However three
functions were left unchanged:

* In elan_smbus_initialize(), increase the buffer size in the same
  way.
* In elan_smbus_calibrate_result(), the buffer is provided by the
  caller (calibrate_store()), so introduce a bounce buffer.  Also
  name the result buffer size.
* In elan_smbus_get_report(), the buffer is provided by the caller
  but happens to be the right length.  Add a compile-time assertion
  to ensure this remains the case.

Cc: <stable@vger.kernel.org> # 3.19+
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-21 17:20:41 -07:00
Alexandr Savca
8938fc7b8f Input: elan_i2c - add ELAN0618 (Lenovo v330 15IKB) ACPI ID
Add ELAN0618 to the list of supported touchpads; this ID is used in
Lenovo v330 15IKB devices.

Signed-off-by: Alexandr Savca <alexandr.savca@saltedge.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-21 17:20:41 -07:00
???
e0ae2519ca Input: elantech - fix V4 report decoding for module with middle key
Some touchpad has middle key and it will be indicated in bit 2 of packet[0].
We need to fix V4 formation's byte mask to prevent error decoding.

Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-21 17:20:11 -07:00
Aaron Ma
24bb555e6e Input: elantech - enable middle button of touchpads on ThinkPad P52
PNPID is better way to identify the type of touchpads.
Enable middle button support on 2 types of touchpads on Lenovo P52.

Cc: stable@vger.kernel.org
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-21 17:19:56 -07:00
Dmitry Torokhov
01f7e67a05 Merge branch 'next' into for-linus
Prepare second round of input updates for 4.18 merge window.
2018-06-12 16:24:36 -07:00
Dmitry Torokhov
c258e84b18 Input: do not assign new tracking ID when changing tool type
We allow changing tool type (from MT_TOOL_FINGER to MT_TOOL_PALM) so we
should not be forcing new tracking ID for the slot.

Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-11 10:23:39 -07:00
Dmitry Torokhov
bf6247a70f Input: make input_report_slot_state() return boolean
Let's make input_report_slot_state() return boolean representing whether
the contact is active or not. This will allow writing code like:

	if (input_mt_report_slot_state(input, obj->mt_tool,
					obj->type != RMI_2D_OBJECT_NONE) {

		input_event(sensor->input, EV_ABS, ABS_MT_POSITION_X, obj->x);
		input_event(sensor->input, EV_ABS, ABS_MT_POSITION_Y, obj->y);
		...
	}

instead of:

	input_mt_report_slot_state(input, obj->mt_tool,
				   obj->type != RMI_2D_OBJECT_NONE);
	if (obj->type != RMI_2D_OBJECT_NONE) {
		input_event(sensor->input, EV_ABS, ABS_MT_POSITION_X, obj->x);
		input_event(sensor->input, EV_ABS, ABS_MT_POSITION_Y, obj->y);
		...
	}

Reviewed-by: Henrik Rydberg <rydberg@bitmath.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redaht.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-11 10:21:06 -07:00
Lucas Stach
645a397d32 Input: synaptics-rmi4 - fix axis-swap behavior
The documentation for the touchscreen-swapped-x-y property states that
swapping is done after inverting if both are used. RMI4 did it the other
way around, leading to inconsistent behavior with regard to other
touchscreens.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Nick Dyer <nick@shmanahar.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-11 10:20:16 -07:00
Wei Yongjun
fd62929475 Input: synaptics-rmi4 - fix the error return code in rmi_probe_interrupts()
The error return code PTR_ERR(data->irqdomain) is always 0 since
data->irqdomain is equal to NULL in this error handling case.

Fixes: 24d28e4f12 ("Input: synaptics-rmi4 - convert irq distribution to irq_domain")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-11 10:19:08 -07:00
Nick Dyer
24d28e4f12 Input: synaptics-rmi4 - convert irq distribution to irq_domain
Convert the RMI driver to use the standard mechanism for
distributing IRQs to the various functions.

Tested on:
* S7300 (F11, F34, F54)
* S7817 (F12, F34, F54)

Signed-off-by: Nick Dyer <nick@shmanahar.org>
Acked-by: Christopher Heiny <cheiny@synaptics.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-05 10:33:35 -07:00
Hans de Goede
fc573af632 Input: silead - add MSSL0002 ACPI HID
The Silead touchscreen on the Chuwi Vi8 tablet uses MSSL0002 as ACPI HID,
rather then the usual MSSL1680 id.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-05 10:29:38 -07:00
Johannes Wienke
e6e7e9cd8e Input: elan_i2c - add ELAN0612 (Lenovo v330 14IKB) ACPI ID
Add ELAN0612 to the list of supported touchpads; this ID is used in Lenovo
v330 14IKB devices.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=199253
Signed-off-by: Johannes Wienke <languitar@semipol.de>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-04 13:41:49 -07:00
Roman Kiryanov
8f6a652a8c Input: goldfish_events - fix checkpatch warnings
Address issues pointed by checkpatch.pl

Signed-off-by: Roman Kiryanov <rkir@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-04 13:36:26 -07:00
Xiaotong Lu
45615a9baf Input: add Spreadtrum vibrator driver
This patch adds the Spreadtrum vibrator driver, which embedded in the
Spreadtrum SC27xx series PMICs.

Signed-off-by: Xiaotong Lu <xiaotong.lu@spreadtrum.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-04 13:36:11 -07:00
Dmitry Torokhov
c13aca79ff Merge branch 'next' into for-linus
Prepare input updates for 4.18 merge window.
2018-06-04 13:33:12 -07:00
Ethan Lee
5ca4d1ae9b Input: goodix - add new ACPI id for GPD Win 2 touch screen
GPD Win 2 Website: http://www.gpd.hk/gpdwin2.asp

Tested on a unit from the first production run sent to Indiegogo backers

Signed-off-by: Ethan Lee <flibitijibibo@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-04 13:31:48 -07:00
Ethan Lee
c1ba08390a Input: xpad - add GPD Win 2 Controller USB IDs
GPD Win 2 Website: http://www.gpd.hk/gpdwin2.asp

Tested on a unit from the first production run sent to Indiegogo backers

Signed-off-by: Ethan Lee <flibitijibibo@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-04 13:31:22 -07:00
Grygorii Strashko
22a844b853 Input: ti_am335x_tsc - prevent system suspend when TSC is in use
Prevent system suspend while user has finger on touch screen,
because TSC is wakeup source and suspending device while in use will
result in failure to disable the module.
This patch uses pm_stay_awake() and pm_relax() APIs to prevent and
resume system suspend as required.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-30 16:42:12 -07:00
Grygorii Strashko
46850420e5 Input: ti_am335x_tsc - ack pending IRQs at probe and before suspend
It is seen that just enabling the TSC module triggers a HW_PEN IRQ
without any interaction with touchscreen by user. This results in first
suspend/resume sequence to fail as system immediately wakes up from
suspend as soon as HW_PEN IRQ is enabled in suspend handler due to the
pending IRQ. Therefore clear all IRQs at probe and also in suspend
callback for sanity.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-30 16:42:12 -07:00
Ravi Chandra Sadineni
38ba34a43d Input: cros_ec_keyb - mark cros_ec_keyb driver as wake enabled device.
Mark cros_ec_keyb has wake enabled by default. If we see a MKBP event
related to keyboard,  call pm_wakeup_event() to make sure wakeup
triggers are accounted to keyb during suspend resume path.

Signed-off-by: Ravi Chandra Sadineni <ravisadineni@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-30 16:42:12 -07:00
Martin Kepplinger
cbd606ec9f Input: mk712 - update documentation web link
At the mentioned address there's nothing found. By searching information
on the controller chip still can be found, so update the link to the
resulting page.

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-29 16:34:22 -07:00
Sebastian Reichel
ca1cd36cef Input: atmel_mxt_ts - fix reset-gpio for level based irqs
The current reset-gpio support triggers an interrupt storm on platforms
using the maxtouch with level based interrupt. The Motorola Droid 4,
which I used for some of the tests is not affected, since it uses a edge
based interrupt.

This change avoids the interrupt storm by enabling the device while its
interrupt is disabled. Afterwards we wait 100ms. This is important for
two reasons: The device is unresponsive for some time (~22ms for
mxt224E) and the CHG (interrupt) line is not working properly for 100ms.
We don't need to wait for any following interrupts, since the following
mxt_initialize() checks for bootloader mode anyways.

This fixes a boot issue on GE PPD (watchdog kills device due to
interrupt storm) and does not cause regression on Motorola Droid 4.

Fixes: f657b00df2 ("Input: atmel_mxt_ts - add support for reset line")
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-24 09:56:47 -07:00
Dmitry Torokhov
7cf432bf05 Input: atmel_mxt_ts - require device properties present when probing
The driver needs help determining whether it is dealing with a touchscreen
or a touchpad, and with button mapping. Previously we supported passing
this data via device properties, and also had DMI lists for Chromebooks
that specified Atmel devices in ACPI, but did not provide enough data
there. Now that chromeos_laptop driver is adjusted to supply necessary
device properties even for ACPI devices, we can drop the DMI tables and
refuse to probe if device properties are not attached to the device.

We use presence of "compatible" property to determine if device properties
are attached to the device or not and rely on chromeos_laptop to re-probe
the device after attaching missing device properties to it.

Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-24 09:31:39 -07:00
Dmitry Torokhov
754451342f Linux 4.17-rc6
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Merge tag 'v4.17-rc6' into next

Sync up with mainline to bring in Atmel controller changes for Caroline.
2018-05-24 09:30:15 -07:00
Benjamin Tissoires
bf232e460a Input: psmouse-smbus - allow to control psmouse_deactivate
This seems to be Synaptics specific, as some Elan touchpads are not
correctly switching to SMBus if we call deactivate before switching to
SMBus on cold boot and on resume.

Tested with the T480s

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 16:49:22 -07:00
Benjamin Tissoires
df077237cf Input: elantech - detect new ICs and setup Host Notify for them
New ICs are using a different scheme for the alternate bus parameter.
Given that they are new and are only using either PS2 only or PS2 + SMBus
Host Notify, we force those new ICs to use the SMBus solution for enhanced
reporting.

This allows the touchpad found on the Lenovo T480s to report 5 fingers
every 8 ms, instead of having a limit of 2 every 8 ms.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 16:49:22 -07:00
Benjamin Tissoires
21c48dbde0 Input: elantech - add support for SMBus devices
Many of the Elantech devices are connected through PS/2 and a different
bus (SMBus or plain I2C).

To not break any existing device, we only enable SMBus based
on a module parameter. If some laptops require the quirk to
be set, we will have to rely on a list of PNPIds or MDI matching
to individually expose those hardware over SMBus.
the parameter mentioned above is elantech_smbus from the psmouse
module.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 16:49:22 -07:00
Benjamin Tissoires
80212ed743 Input: elantech - query the resolution in query_info
The command ETP_RESOLUTION_QUERY also contains the bus information.
It is better to fetch it once, while we are querying for device
information.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 16:49:22 -07:00
Benjamin Tissoires
f078759201 Input: elantech - split device info into a separate structure
In preparation for SMBus device support, move static device
information that we query form the touchpad upon initialization into
separate structure. This will allow us to query the device without
allocating memory first.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 16:48:49 -07:00
Benjamin Tissoires
559b3df76f Input: elan_i2c - add trackstick report
The Elan touchpads over I2C/SMBus also can handle a trackstick.
Unfortunately, nothing tells us if the device supports trackstick (the
information lies in the PS/2 node), so rely on device properties to
determine whether to enable the trackstick node.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=1313939

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 16:46:36 -07:00
Benjamin Tissoires
40f7090bb1 Input: elan_i2c_smbus - fix corrupted stack
New ICs (like the one on the Lenovo T480s) answer to
ETP_SMBUS_IAP_VERSION_CMD 4 bytes instead of 3. This corrupts the stack
as i2c_smbus_read_block_data() uses the values returned by the i2c
device to know how many data it need to return.

i2c_smbus_read_block_data() can read up to 32 bytes (I2C_SMBUS_BLOCK_MAX)
and there is no safeguard on how many bytes are provided in the return
value. Ensure we always have enough space for any future firmware.
Also 0-initialize the values to prevent any access to uninitialized memory.

Cc: <stable@vger.kernel.org> # v4.4.x, v4.9.x, v4.14.x, v4.15.x, v4.16.x
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 11:48:59 -07:00
Benjamin Tissoires
ad8fb554f0 Input: synaptics - add Lenovo 80 series ids to SMBus
This time, Lenovo decided to go with different pieces in its latest
series of Thinkpads.

For those we have been able to test:
- the T480 is using Synaptics with an IBM trackpoint
   -> it behaves properly with or without intertouch, there is no point
      not using RMI4
- the X1 Carbon 6th gen is using Synaptics with an IBM trackpoint
   -> the touchpad doesn't behave properly under PS/2 so we have to
      switch it to RMI4 if we do not want to have disappointed users
- the X280 is using Synaptics with an ALPS trackpoint
   -> the recent fixes in the trackpoint handling fixed it so upstream
      now works fine with or without RMI4, and there is no point not
      using RMI4
- the T480s is using an Elan touchpad, so that's a different story

Cc: <stable@vger.kernel.org> # v4.14.x, v4.15.x, v4.16.x
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 11:47:04 -07:00
Aaron Ma
5717a09aea Input: synaptics - add Intertouch support on X1 Carbon 6th and X280
Synaptics devices reported it has Intertouch support,
and it fails via PS/2 as following logs:

psmouse serio2: Failed to reset mouse on synaptics-pt/serio0
psmouse serio2: Failed to enable mouse on synaptics-pt/serio0

Set these new devices to use SMBus to fix this issue, then they report
SMBus version 3 is using, patch:
https://patchwork.kernel.org/patch/9989547/ enabled SMBus ver 3 and
makes synaptics devices work fine on SMBus mode.

Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 11:46:42 -07:00
Edvard Holst
15e2cffec3 Input: synaptics - Lenovo Thinkpad X1 Carbon G5 (2017) with Elantech trackpoints should use RMI
Lenovo use two different trackpoints in the fifth generation Thinkpad X1
Carbon. Both are accessible over SMBUS/RMI but the pnpIDs are missing.
This patch is for the Elantech trackpoint specifically which also
reports SMB version 3 so rmi_smbus needs to be updated in order to
handle it.

For the record, I was not the first one to come up with this patch as it
has been floating around the internet for a while now. However, I have
spent significant time with testing and my efforts to find the original
author of the patch have been unsuccessful.

Signed-off-by: Edvard Holst <edvard.holst@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 11:45:50 -07:00
Dmitry Torokhov
9b2071028f Input: synaptics - Lenovo Carbon X1 Gen5 (2017) devices should use RMI
The touchpad on Lenovo Carbon X1 Gen 5 (2017 - Kabylake) is accessible over
SMBUS/RMI, so let's activate it by default.

Cc: stable@vger.kernel.org
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-23 11:44:35 -07:00
Nick Dyer
89f84b84d3 Input: usbtouchscreen - add sysfs attribute for 3M MTouch firmware rev
Allow querying of the firmware revision of the device

example:

4.10

Tested on ZII RDU2 platform and on Intel x86_64 PC.

Signed-off-by: Nick Dyer <nick@shmanahar.org>
Tested-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-15 12:14:16 -07:00
Wolfram Sang
ff7242ab02 Input: ati_remote2 - fix typo 'can by' to 'can be'
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-15 12:01:09 -07:00
Nick Simonov
67043f41dd Input: replace hard coded string with __func__ in pr_err()
Change hardcoded string "input_set_capability" in pr_err() function call,
replace it with "%s" __func__ instead.

Signed-off-by: Nick Simonov <nicksimonovv@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-15 12:00:53 -07:00
Hans de Goede
e7330fa032 Input: add support for ChipOne icn8505 based touchscreens
The ChipOne icn8505 is an i2c capacitive touchscreen controller typically
used in cheap x86 tablets, this commit adds a driver for it.

Note the icn8505 is somewhat similar to the icn8318 and I started with
modifying that driver to support both, but in the end the differences were
too large and I decided to write a new driver instead.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-09 13:29:35 -07:00
Marcus Folkesson
a5a45b7fcd Input: gamecon - avoid using __set_bit() for capabilities
input_set_capability() and input_set_abs_param() will do it for you.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-08 15:39:04 -07:00
Marcus Folkesson
89223a2b03 Input: as5011 - avoid using __set_bit() for capabilities
input_set_capability() and input_set_abs_param() will do it for you.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-08 15:36:02 -07:00
Marcus Folkesson
a01308031c Input: xpad - avoid using __set_bit() for capabilities
input_set_capability() and input_set_abs_param() will do it for you.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-08 15:35:47 -07:00
Leo Sperling
68c78d0155 Input: xpad - fix some coding style issues
Fix some coding style issues reported by checkpatch.pl. Mostly brackets
in macros, spacing and comment style.

Signed-off-by: Leo Sperling <leosperling97@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-08 15:35:25 -07:00
Linus Torvalds
ecd649b340 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "Just a few driver fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: atmel_mxt_ts - add missing compatible strings to OF device table
  Input: atmel_mxt_ts - fix the firmware update
  Input: atmel_mxt_ts - add touchpad button mapping for Samsung Chromebook Pro
  MAINTAINERS: Rakesh Iyer can't be reached anymore
  Input: hideep_ts - fix a typo in Kconfig
  Input: alps - fix reporting pressure of v3 trackstick
  Input: leds - fix out of bound access
  Input: synaptics-rmi4 - fix an unchecked out of memory error path
2018-05-02 17:34:42 -10:00
Javier Martinez Canillas
f6eeb9e548 Input: atmel_mxt_ts - add missing compatible strings to OF device table
Commit af503716ac ("i2c: core: report OF style module alias for devices
registered via OF") fixed how the I2C core reports the module alias when
devices are registered via OF.

But the atmel_mxt_ts driver only has an "atmel,maxtouch" compatible in its
OF device ID table, so if a Device Tree is using a different one, autoload
won't be working for the module (the matching works because the I2C device
ID table is used as a fallback).

So add compatible strings for each of the entries in the I2C device table.

Fixes: af503716ac ("i2c: core: report OF style module alias for devices registered via OF")
Reported-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Rob Herring <robh@kernel.org>
[dtor: document which compatibles are deprecated and should not be used]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-01 15:51:15 -07:00
Nick Dyer
068bdb67ef Input: atmel_mxt_ts - fix the firmware update
The automatic update mechanism will trigger an update if the
info block CRCs are different between maxtouch configuration
file (maxtouch.cfg) and chip.

The driver compared the CRCs without retrieving the chip CRC,
resulting always in a failure and firmware flashing action
triggered. Fix this issue by retrieving the chip info block
CRC before the check.

Note that this solution has the benefit that by reading the
information block and the object table into a contiguous region
of memory, we can verify the checksum at probe time. This means
we make sure that we are indeed talking to a chip that supports
object protocol correctly.

Using this patch on a kevin chromebook, the touchscreen and
touchpad drivers are able to match the CRC:

  atmel_mxt_ts 3-004b: Family: 164 Variant: 14 Firmware V2.3.AA Objects: 40
  atmel_mxt_ts 5-004a: Family: 164 Variant: 17 Firmware V2.0.AA Objects: 31
  atmel_mxt_ts 3-004b: Resetting device
  atmel_mxt_ts 5-004a: Resetting device
  atmel_mxt_ts 3-004b: Config CRC 0x573E89: OK
  atmel_mxt_ts 3-004b: Touchscreen size X4095Y2729
  input: Atmel maXTouch Touchscreen as /devices/platform/ff130000.i2c/i2c-3/3-004b/input/input5
  atmel_mxt_ts 5-004a: Config CRC 0x0AF6BA: OK
  atmel_mxt_ts 5-004a: Touchscreen size X1920Y1080
  input: Atmel maXTouch Touchpad as /devices/platform/ff140000.i2c/i2c-5/5-004a/input/input6

Signed-off-by: Nick Dyer <nick.dyer@shmanahar.org>
Acked-by: Benson Leung <bleung@chromium.org>
[Ezequiel: minor patch massage]
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-01 11:54:51 -07:00
Vittorio Gambaletta (VittGam)
f372b81101 Input: atmel_mxt_ts - add touchpad button mapping for Samsung Chromebook Pro
This patch adds the correct platform data information for the Caroline
Chromebook, so that the mouse button does not get stuck in pressed state
after the first click.

The Samus button keymap and platform data definition are the correct
ones for Caroline, so they have been reused here.

Signed-off-by: Vittorio Gambaletta <linuxbugs@vittgam.net>
Signed-off-by: Salvatore Bellizzi <lkml@seppia.net>
Tested-by: Guenter Roeck <groeck@chromium.org>
Cc: stable@vger.kernel.org
[dtor: adjusted vendor spelling to match shipping firmware]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-05-01 11:35:33 -07:00
Thomas Gleixner
a3ed0e4393 Revert: Unify CLOCK_MONOTONIC and CLOCK_BOOTTIME
Revert commits

92af4dcb4e ("tracing: Unify the "boot" and "mono" tracing clocks")
127bfa5f43 ("hrtimer: Unify MONOTONIC and BOOTTIME clock behavior")
7250a4047a ("posix-timers: Unify MONOTONIC and BOOTTIME clock behavior")
d6c7270e91 ("timekeeping: Remove boot time specific code")
f2d6fdbfd2 ("Input: Evdev - unify MONOTONIC and BOOTTIME clock behavior")
d6ed449afd ("timekeeping: Make the MONOTONIC clock behave like the BOOTTIME clock")
72199320d4 ("timekeeping: Add the new CLOCK_MONOTONIC_ACTIVE clock")

As stated in the pull request for the unification of CLOCK_MONOTONIC and
CLOCK_BOOTTIME, it was clear that we might have to revert the change.

As reported by several folks systemd and other applications rely on the
documented behaviour of CLOCK_MONOTONIC on Linux and break with the above
changes. After resume daemons time out and other timeout related issues are
observed. Rafael compiled this list:

* systemd kills daemons on resume, after >WatchdogSec seconds
  of suspending (Genki Sky).  [Verified that that's because systemd uses
  CLOCK_MONOTONIC and expects it to not include the suspend time.]

* systemd-journald misbehaves after resume:
  systemd-journald[7266]: File /var/log/journal/016627c3c4784cd4812d4b7e96a34226/system.journal
corrupted or uncleanly shut down, renaming and replacing.
  (Mike Galbraith).

* NetworkManager reports "networking disabled" and networking is broken
  after resume 50% of the time (Pavel).  [May be because of systemd.]

* MATE desktop dims the display and starts the screensaver right after
  system resume (Pavel).

* Full system hang during resume (me).  [May be due to systemd or NM or both.]

That happens on debian and open suse systems.

It's sad, that these problems were neither catched in -next nor by those
folks who expressed interest in this change.

Reported-by: Rafael J. Wysocki <rjw@rjwysocki.net>
Reported-by: Genki Sky <sky@genki.is>,
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kevin Easton <kevin@guarana.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Salyzyn <salyzyn@android.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
2018-04-26 14:53:32 +02:00
Masanari Iida
6f226cff7a Input: hideep_ts - fix a typo in Kconfig
This patch fixes a spelling error found in Kconfig.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-04-23 16:38:16 -07:00
Pali Rohár
9c71b2c53b Input: alps - fix reporting pressure of v3 trackstick
According to documentation, all 7 lower bits represents trackpoint pressure.

Fixes: 4621c96604 ("Input: alps - report pressure of v3 and v7 trackstick")
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-04-23 16:38:16 -07:00