Commit Graph

1042 Commits

Author SHA1 Message Date
Marco Felsch
aa9402c14d Input: da9063 - fix capability and drop KEY_SLEEP
commit afce285b85 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-29 09:19:51 +01:00
Andrey Smirnov
ebd7dda84e Input: uinput - add compat ioctl number translation for UI_*_FF_UPLOAD
commit 7c7da40da1 upstream.

In the case of compat syscall ioctl numbers for UI_BEGIN_FF_UPLOAD and
UI_END_FF_UPLOAD need to be adjusted before being passed on
uinput_ioctl_handler() since code built with -m32 will be passing
slightly different values. Extend the code already covering
UI_SET_PHYS to cover UI_BEGIN_FF_UPLOAD and UI_END_FF_UPLOAD as well.

Reported-by: Pierre-Loup A. Griffais <pgriffais@valvesoftware.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-25 11:35:54 +08:00
Hans de Goede
986a2bb54a Input: soc_button_array - fix mapping of the 5th GPIO in a PNP0C40 device
[ Upstream commit e9eb788f94 ]

The Microsoft documenation for the PNP0C40 device aka the
"Windows-compatible button array" describes the 5th GpioInt listed in
the resources as: '5. Interrupt corresponding to the "Rotation Lock"
button, if supported'.

Notice this describes the 5th entry as a button while we sofar have been
mapping it to EV_SW, SW_ROTATE_LOCK. On my Point of View TAB P1006W-232
which actually comes with a rotation-lock button, the button indeed is a
button and not a slider/switch. An image search for other Windows tablets
has found 2 more models with a rotation-lock button and on both of those
it too is a push-button and not a slider/switch.

Further evidence can be found in the HUT extension HUTRR52 from Microsoft
which adds rotation lock support to the HUT, which describes 2 different
usages: "0xC9 System Display Rotation Lock Button" and
"0xCA System Display Rotation Lock Slider Switch" note that switch is seen
as a separate thing here and the non switch wording is an exact match for
the "Windows-compatible button array" spec wording.

TL;DR: our current mapping of the 5th GPIO to SW_ROTATE_LOCK is wrong
because the 5th GPIO is for a push-button not a switch.

This commit fixes this by maping the 5th GPIO to KEY_ROTATE_LOCK_TOGGLE.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-04-05 22:33:16 +02:00
Paweł Chmiel
bac70a8941 Input: pwm-vibra - stop regulator after disabling pwm, not before
[ Upstream commit 94803aef35 ]

This patch fixes order of disable calls in pwm_vibrator_stop.
Currently when starting device, we first enable vcc regulator and then
setup and enable pwm. When stopping, we should do this in oposite order,
so first disable pwm and then disable regulator.
Previously order was the same as in start.

Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-03-23 20:09:42 +01:00
Jonathan Bakker
0ed72d3f6f Input: pwm-vibra - prevent unbalanced regulator
[ Upstream commit 3ca232df99 ]

pwm_vibrator_stop disables the regulator, but it can be called from
multiple places, even when the regulator is already disabled. Fix this
by using regulator_is_enabled check when starting and stopping device.

Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-03-23 20:09:42 +01:00
Jonathan Bakker
3bd120956d Input: bma150 - register input device after setting private data
commit 90cc55f067 upstream.

Otherwise we introduce a race condition where userspace can request input
before we're ready leading to null pointer dereference such as

input: bma150 as /devices/platform/i2c-gpio-2/i2c-5/5-0038/input/input3
Unable to handle kernel NULL pointer dereference at virtual address 00000018
pgd = (ptrval)
[00000018] *pgd=55dac831, *pte=00000000, *ppte=00000000
Internal error: Oops: 17 [#1] PREEMPT ARM
Modules linked in: bma150 input_polldev [last unloaded: bma150]
CPU: 0 PID: 2870 Comm: accelerometer Not tainted 5.0.0-rc3-dirty #46
Hardware name: Samsung S5PC110/S5PV210-based board
PC is at input_event+0x8/0x60
LR is at bma150_report_xyz+0x9c/0xe0 [bma150]
pc : [<80450f70>]    lr : [<7f0a614c>]    psr: 800d0013
sp : a4c1fd78  ip : 00000081  fp : 00020000
r10: 00000000  r9 : a5e2944c  r8 : a7455000
r7 : 00000016  r6 : 00000101  r5 : a7617940  r4 : 80909048
r3 : fffffff2  r2 : 00000000  r1 : 00000003  r0 : 00000000
Flags: Nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 10c5387d  Table: 54e34019  DAC: 00000051
Process accelerometer (pid: 2870, stack limit = 0x(ptrval))
Stackck: (0xa4c1fd78 to 0xa4c20000)
fd60:                                                       fffffff3 fc813f6c
fd80: 40410581 d7530ce3 a5e2817c a7617f00 a5e29404 a5e2817c 00000000 7f008324
fda0: a5e28000 8044f59c a5fdd9d0 a5e2945c a46a4a00 a5e29668 a7455000 80454f10
fdc0: 80909048 a5e29668 a5fdd9d0 a46a4a00 806316d0 00000000 a46a4a00 801df5f0
fde0: 00000000 d7530ce3 a4c1fec0 a46a4a00 00000000 a5fdd9d0 a46a4a08 801df53c
fe00: 00000000 801d74bc a4c1fec0 00000000 a4c1ff70 00000000 a7038da8 00000000
fe20: a46a4a00 801e91fc a411bbe0 801f2e88 00000004 00000000 80909048 00000041
fe40: 00000000 00020000 00000000 dead4ead a6a88da0 00000000 ffffe000 806fcae8
fe60: a4c1fec8 00000000 80909048 00000002 a5fdd9d0 a7660110 a411bab0 00000001
fe80: dead4ead ffffffff ffffffff a4c1fe8c a4c1fe8c d7530ce3 20000013 80909048
fea0: 80909048 a4c1ff70 00000001 fffff000 a4c1e000 00000005 00026038 801eabd8
fec0: a7660110 a411bab0 b9394901 00000006 a696201b 76fb3000 00000000 a7039720
fee0: a5fdd9d0 00000101 00000002 00000096 00000000 00000000 00000000 a4c1ff00
ff00: a6b310f4 805cb174 a6b310f4 00000010 00000fe0 00000010 a4c1e000 d7530ce3
ff20: 00000003 a5f41400 a5f41424 00000000 a6962000 00000000 00000003 00000002
ff40: ffffff9c 000a0000 80909048 d7530ce3 a6962000 00000003 80909048 ffffff9c
ff60: a6962000 801d890c 00000000 00000000 00020000 a7590000 00000004 00000100
ff80: 00000001 d7530ce3 000288b8 00026320 000288b8 00000005 80101204 a4c1e000
ffa0: 00000005 80101000 000288b8 00026320 000288b8 000a0000 00000000 00000000
ffc0: 000288b8 00026320 000288b8 00000005 7eef3bac 000264e8 00028ad8 00026038
ffe0: 00000005 7eef3300 76f76e91 76f78546 800d0030 000288b8 00000000 00000000
[<80450f70>] (input_event) from [<a5e2817c>] (0xa5e2817c)
Code: e1a08148 eaffffa8 e351001f 812fff1e (e590c018)
---[ end trace 1c691ee85f2ff243 ]---

Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-20 10:25:46 +01:00
Dmitry Torokhov
92fbac528f Input: uinput - fix undefined behavior in uinput_validate_absinfo()
commit d77651a227 upstream.

An integer overflow may arise in uinput_validate_absinfo() if "max - min"
can't be represented by an "int". We should check for overflow before
trying to use the result.

Reported-by: Kyungtae Kim <kt0755@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-31 08:14:37 +01:00
Greg Kroah-Hartman
eb81bfb224 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Dmitry writes:
  "Input updates for v4.19-rc7

   - we added a few scheduling points into various input interfaces to
     ensure that large writes will not cause RCU stalls
   - fixed configuring PS/2 keyboards as wakeup devices on newer
     platforms
   - added a new Xbox gamepad ID."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: uinput - add a schedule point in uinput_inject_events()
  Input: evdev - add a schedule point in evdev_write()
  Input: mousedev - add a schedule point in mousedev_write()
  Input: i8042 - enable keyboard wakeups by default when s2idle is used
  Input: xpad - add support for Xbox1 PDP Camo series gamepad
2018-10-12 12:35:02 +02:00
Dmitry Torokhov
cecf107048 Input: uinput - add a schedule point in uinput_inject_events()
Large writes to uinput interface may cause rcu stalls. Let's add
cond_resched() to the loop to avoid this.

Reviewed-by: Paul E. McKenney <paulmck@linux.ibm.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-10-05 11:42:32 -07:00
Greg Kroah-Hartman
e704966c45 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Dmitry writes:
  "Input updates for v4.19-rc5

   Just a few driver fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: uinput - allow for max == min during input_absinfo validation
  Input: elantech - enable middle button of touchpad on ThinkPad P72
  Input: atakbd - fix Atari CapsLock behaviour
  Input: atakbd - fix Atari keymap
  Input: egalax_ts - add system wakeup support
  Input: gpio-keys - fix a documentation index issue
2018-09-28 18:04:50 -07:00
Peter Hutterer
4fef1250ea Input: uinput - allow for max == min during input_absinfo validation
These values are inclusive, so a range of 1 requires min == max.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Martin Kepplinger <martin.kepplinger@ginzinger.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-09-18 15:28:07 -07:00
Linus Torvalds
08b5fa8199 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - a new driver for Rohm BU21029 touch controller

 - new bitmap APIs: bitmap_alloc, bitmap_zalloc and bitmap_free

 - updates to Atmel, eeti. pxrc and iforce drivers

 - assorted driver cleanups and fixes.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (57 commits)
  MAINTAINERS: Add PhoenixRC Flight Controller Adapter
  Input: do not use WARN() in input_alloc_absinfo()
  Input: mark expected switch fall-throughs
  Input: raydium_i2c_ts - use true and false for boolean values
  Input: evdev - switch to bitmap API
  Input: gpio-keys - switch to bitmap_zalloc()
  Input: elan_i2c_smbus - cast sizeof to int for comparison
  bitmap: Add bitmap_alloc(), bitmap_zalloc() and bitmap_free()
  md: Avoid namespace collision with bitmap API
  dm: Avoid namespace collision with bitmap API
  Input: pm8941-pwrkey - add resin entry
  Input: pm8941-pwrkey - abstract register offsets and event code
  Input: iforce - reorganize joystick configuration lists
  Input: atmel_mxt_ts - move completion to after config crc is updated
  Input: atmel_mxt_ts - don't report zero pressure from T9
  Input: atmel_mxt_ts - zero terminate config firmware file
  Input: atmel_mxt_ts - refactor config update code to add context struct
  Input: atmel_mxt_ts - config CRC may start at T71
  Input: atmel_mxt_ts - remove unnecessary debug on ENOMEM
  Input: atmel_mxt_ts - remove duplicate setup of ABS_MT_PRESSURE
  ...
2018-08-18 16:48:07 -07:00
Vinod Koul
955c594ed1 Input: pm8941-pwrkey - add resin entry
Since handling is abstracted in this driver, we need to add resin entry
in id table along with pwrkey_data.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-07-30 23:11:17 -07:00
Vinod Koul
2049a9e56a Input: pm8941-pwrkey - abstract register offsets and event code
In order to support resin thru the pwrkey driver (they are very
similar in nature) we need to abstract the handling in this driver.

First we abstract pull_up_bit and status_bit along in driver data.
The event code sent for key events is quiried from DT.

Since the device can be child of pon lookup regmap and reg from
parent if lookup fails (we are child).

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-07-30 23:11:16 -07:00
Jia-Ju Bai
434ca100cf Input: yealink - replace GFP_ATOMIC with GFP_KERNEL in usb_probe()
usb_probe() is never called in atomic context.  It calls
usb_alloc_coherent() with GFP_ATOMIC, which is not necessary.  GFP_ATOMIC
can be replaced with GFP_KERNEL.

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-07-27 11:59:09 -07:00
Jia-Ju Bai
1f25d9c60c Input: powermate - replace GFP_ATOMIC with GFP_KERNEL in powermate_alloc_buffers()
powermate_alloc_buffers() is never called in atomic context. It calls
usb_alloc_coherent() with GFP_ATOMIC, which is not necessary. GFP_ATOMIC
can be replaced with GFP_KERNEL.

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-07-27 11:59:07 -07:00
Jia-Ju Bai
673831da64 Input: keyspan_remote - replace GFP_ATOMIC with GFP_KERNEL in keyspan_probe()
keyspan_probe() is never called in atomic context. It calls
usb_alloc_coherent() with GFP_ATOMIC, which is not necessary. GFP_ATOMIC
can be replaced with GFP_KERNEL.

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-07-27 11:59:06 -07:00
Linus Torvalds
c92067ae06 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - the main change is a fix for my brain-dead patch to PS/2 button
   reporting for some protocols that made it in 4.17

 - there is a new driver for Spreadtum vibrator that I intended to send
   during merge window but ended up not sending the 2nd pull request.
   Given that this is a brand new driver we should not see regressions
   here

 - a fixup to Elantech PS/2 driver to avoid decoding errors on Thinkpad
   P52

 - addition of few more ACPI IDs for Silead and Elan drivers

 - RMI4 is switched to using IRQ domain code instead of rolling its own
   implementation

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: psmouse - fix button reporting for basic protocols
  Input: xpad - fix GPD Win 2 controller name
  Input: elan_i2c_smbus - fix more potential stack buffer overflows
  Input: elan_i2c - add ELAN0618 (Lenovo v330 15IKB) ACPI ID
  Input: elantech - fix V4 report decoding for module with middle key
  Input: elantech - enable middle button of touchpads on ThinkPad P52
  Input: do not assign new tracking ID when changing tool type
  Input: make input_report_slot_state() return boolean
  Input: synaptics-rmi4 - fix axis-swap behavior
  Input: synaptics-rmi4 - fix the error return code in rmi_probe_interrupts()
  Input: synaptics-rmi4 - convert irq distribution to irq_domain
  Input: silead - add MSSL0002 ACPI HID
  Input: goldfish_events - fix checkpatch warnings
  Input: add Spreadtrum vibrator driver
2018-06-27 09:16:53 -07:00
Mauro Carvalho Chehab
5fb94e9ca3 docs: Fix some broken references
As we move stuff around, some doc references are broken. Fix some of
them via this script:
	./scripts/documentation-file-ref-check --fix

Manually checked if the produced result is valid, removing a few
false-positives.

Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Coly Li <colyli@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00
Dmitry Torokhov
5aff29efbe Merge branch 'ib/4.17-xen-kbdfront-runtime-config' into next
Bring in xen-kbdfront changes.
2018-06-12 16:38:35 -07:00
Kees Cook
a86854d0c5 treewide: devm_kzalloc() -> devm_kcalloc()
The devm_kzalloc() function has a 2-factor argument form, devm_kcalloc().
This patch replaces cases of:

        devm_kzalloc(handle, a * b, gfp)

with:
        devm_kcalloc(handle, a * b, gfp)

as well as handling cases of:

        devm_kzalloc(handle, a * b * c, gfp)

with:

        devm_kzalloc(handle, array3_size(a, b, c), gfp)

as it's slightly less ugly than:

        devm_kcalloc(handle, array_size(a, b), c, gfp)

This does, however, attempt to ignore constant size factors like:

        devm_kzalloc(handle, 4 * 1024, gfp)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

Some manual whitespace fixes were needed in this patch, as Coccinelle
really liked to write "=devm_kcalloc..." instead of "= devm_kcalloc...".

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
expression HANDLE;
type TYPE;
expression THING, E;
@@

(
  devm_kzalloc(HANDLE,
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  devm_kzalloc(HANDLE,
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression HANDLE;
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  devm_kzalloc(HANDLE,
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
expression HANDLE;
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * (COUNT_ID)
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * COUNT_ID
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * (COUNT_CONST)
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * COUNT_CONST
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * (COUNT_ID)
+	COUNT_ID, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * COUNT_ID
+	COUNT_ID, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * (COUNT_CONST)
+	COUNT_CONST, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * COUNT_CONST
+	COUNT_CONST, sizeof(THING)
  , ...)
)

// 2-factor product, only identifiers.
@@
expression HANDLE;
identifier SIZE, COUNT;
@@

- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	SIZE * COUNT
+	COUNT, SIZE
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression HANDLE;
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression HANDLE;
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
expression HANDLE;
identifier STRIDE, SIZE, COUNT;
@@

(
  devm_kzalloc(HANDLE,
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression HANDLE;
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  devm_kzalloc(HANDLE, C1 * C2 * C3, ...)
|
  devm_kzalloc(HANDLE,
-	(E1) * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(E1) * (E2) * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(E1) * (E2) * (E3)
+	array3_size(E1, E2, E3)
  , ...)
|
  devm_kzalloc(HANDLE,
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression HANDLE;
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@

(
  devm_kzalloc(HANDLE, sizeof(THING) * C2, ...)
|
  devm_kzalloc(HANDLE, sizeof(TYPE) * C2, ...)
|
  devm_kzalloc(HANDLE, C1 * C2 * C3, ...)
|
  devm_kzalloc(HANDLE, C1 * C2, ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * (E2)
+	E2, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * E2
+	E2, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * (E2)
+	E2, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * E2
+	E2, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	(E1) * E2
+	E1, E2
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	(E1) * (E2)
+	E1, E2
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	E1 * E2
+	E1, E2
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 16:19:22 -07:00
Oleksandr Andrushchenko
3ef8a2eeb6 Input: xen-kbdfront - allow better run-time configuration
It is now only possible to control if multi-touch virtual device
is created or not (via the corresponding XenStore entries),
but keyboard and pointer devices are always created.
In some cases this is not desirable. For example, if virtual
keyboard device is exposed to Android then the latter won't
automatically show on-screen keyboard as it expects that a
physical keyboard device can be used for typing.

Utilize keyboard and pointer device XenStore feature fields to
configure which virtual devices are created:
 - set "feature-disable-keyboard" to 1 if no keyboard device
   needs to be created
 - set "feature-disable-pointer" to 1 if no pointer device
   needs to be created
Keep old behavior by default.

Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Suggested-by: Andrii Chepurnyi <andrii_chepurnyi@epam.com>
Tested-by: Andrii Chepurnyi <andrii_chepurnyi@epam.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-12 15:11:00 -07:00
Oleksandr Andrushchenko
ce6f7d087e Input: xen-kbdfront - fix multi-touch XenStore node's locations
kbdif protocol describes multi-touch device parameters as a
part of frontend's XenBus configuration nodes while they
belong to backend's configuration. Fix this by reading the
parameters as defined by the protocol.

Fixes: 49aac8204d ("Input: xen-kbdfront - add multi-touch support")

Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-06-12 15:10:59 -07:00
Linus Torvalds
2158091d9c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - a new driver to ChipOne icn8505 based touchscreens

 - on certain systems with Elan touch controllers they will be switched
   away form PS/2 emulation and over to native SMbus mode

 - assorted driver fixups and improvements

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (24 commits)
  Input: elan_i2c - add ELAN0612 (Lenovo v330 14IKB) ACPI ID
  Input: goodix - add new ACPI id for GPD Win 2 touch screen
  Input: xpad - add GPD Win 2 Controller USB IDs
  Input: ti_am335x_tsc - prevent system suspend when TSC is in use
  Input: ti_am335x_tsc - ack pending IRQs at probe and before suspend
  Input: cros_ec_keyb - mark cros_ec_keyb driver as wake enabled device.
  Input: mk712 - update documentation web link
  Input: atmel_mxt_ts - fix reset-gpio for level based irqs
  Input: atmel_mxt_ts - require device properties present when probing
  Input: psmouse-smbus - allow to control psmouse_deactivate
  Input: elantech - detect new ICs and setup Host Notify for them
  Input: elantech - add support for SMBus devices
  Input: elantech - query the resolution in query_info
  Input: elantech - split device info into a separate structure
  Input: elan_i2c - add trackstick report
  Input: usbtouchscreen - add sysfs attribute for 3M MTouch firmware rev
  Input: ati_remote2 - fix typo 'can by' to 'can be'
  Input: replace hard coded string with __func__ in pr_err()
  Input: add support for ChipOne icn8505 based touchscreens
  Input: gamecon - avoid using __set_bit() for capabilities
  ...
2018-06-05 16:05:14 -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
754451342f 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
Christoph Hellwig
3f3942aca6 proc: introduce proc_create_single{,_data}
Variants of proc_create{,_data} that directly take a seq_file show
callback and drastically reduces the boilerplate code in the callers.

All trivial callers converted over.

Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-16 07:23:35 +02:00
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
Linus Torvalds
5414ab31b1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - new driver for PhoenixRC Flight Controller Adapter

 - new driver for RAVE SP Power button

 - fixes for autosuspend-related deadlocks in a few unput USB dirvers

 - support for 2nd wheel in ATech PS/2 mouse

 - fix for ALPS trackpoint detection on Thinkpad L570 and Latitude 7370

 - bunch of cleanups in various in PS/2 protocols

 - other assorted changes and fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (35 commits)
  Input: i8042 - enable MUX on Sony VAIO VGN-CS series to fix touchpad
  Input: stmfts, s6sy761 - update my e-mail
  Input: stmfts - use async probe & suspend/resume to avoid 2s delay
  Input: ALPS - fix TrackStick detection on Thinkpad L570 and Latitude 7370
  Input: xpad - add PDP device id 0x02a4
  Input: alps - report pressure of v3 and v7 trackstick
  Input: pxrc - new driver for PhoenixRC Flight Controller Adapter
  Input: usbtouchscreen - do not rely on input_dev->users
  Input: usbtouchscreen - fix deadlock in autosuspend
  Input: pegasus_notetaker - do not rely on input_dev->users
  Input: pagasus_notetaker - fix deadlock in autosuspend
  Input: synaptics_usb - do not rely on input_dev->users
  Input: synaptics_usb - fix deadlock in autosuspend
  Input: gpio-keys - add support for wakeup event action
  Input: appletouch - use true and false for boolean values
  Input: silead - add Chuwi Hi8 support
  Input: analog - use get_cycles() on PPC
  Input: stmpe-keypad - remove VLA usage
  Input: i8042 - add Lenovo ThinkPad L460 to i8042 reset list
  Input: add RAVE SP Powerbutton driver
  ...
2018-04-05 13:21:57 -07:00
Arnd Bergmann
c957ea5c79 input: misc: remove blackfin rotary driver
The blackfin architecture is getting removed, so this
one is obsolete as well.

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Aaron Wu <aaron.wu@analog.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2018-03-26 15:56:59 +02:00
Andrey Smirnov
62f0f079b9 Input: add RAVE SP Powerbutton driver
Add driver that properly handles input event emitted by RAVE SP
devices.

Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-03-08 15:34:45 -08:00
Linus Torvalds
a9a08845e9 vfs: do bulk POLL* -> EPOLL* replacement
This is the mindless scripted replacement of kernel use of POLL*
variables as described by Al, done by this script:

    for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do
        L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'`
        for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done
    done

with de-mangling cleanups yet to come.

NOTE! On almost all architectures, the EPOLL* constants have the same
values as the POLL* constants do.  But they keyword here is "almost".
For various bad reasons they aren't the same, and epoll() doesn't
actually work quite correctly in some cases due to this on Sparc et al.

The next patch from Al will sort out the final differences, and we
should be all done.

Scripted-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-11 14:34:03 -08:00
Linus Torvalds
eea43ed86f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input layer updates from Dmitry Torokhov:

 - evdev interface has been adjusted to extend the life of timestamps on
   32 bit systems to the year of 2108

 - Synaptics RMI4 driver's PS/2 guest handling ha beed updated to
   improve chances of detecting trackpoints on the pass-through port

 - mms114 touchcsreen controller driver has been updated to support
   generic device properties and work with mms152 cntrollers

 - Goodix driver now supports generic touchscreen properties

 - couple of drivers for AVR32 architecture are gone as the architecture
   support has been removed from the kernel

 - gpio-tilt driver has been removed as there are no mainline users and
   the driver itself is using legacy APIs and relies on platform data

 - MODULE_LINECSE/MODULE_VERSION cleanups

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (45 commits)
  Input: goodix - use generic touchscreen_properties
  Input: mms114 - fix typo in definition
  Input: mms114 - use BIT() macro instead of explicit shifting
  Input: mms114 - replace mdelay with msleep
  Input: mms114 - add support for mms152
  Input: mms114 - drop platform data and use generic APIs
  Input: mms114 - mark as direct input device
  Input: mms114 - do not clobber interrupt trigger
  Input: edt-ft5x06 - fix error handling for factory mode on non-M06
  Input: stmfts - set IRQ_NOAUTOEN to the irq flag
  Input: auo-pixcir-ts - delete an unnecessary return statement
  Input: auo-pixcir-ts - remove custom log for a failed memory allocation
  Input: da9052_tsi - remove unused mutex
  Input: docs - use PROPERTY_ENTRY_U32() directly
  Input: synaptics-rmi4 - log when we create a guest serio port
  Input: synaptics-rmi4 - unmask F03 interrupts when port is opened
  Input: synaptics-rmi4 - do not delete interrupt memory too early
  Input: ad7877 - use managed resource allocations
  Input: stmfts,s6sy671 - add SPDX identifier
  Input: remove atmel-wm97xx touchscreen driver
  ...
2018-02-01 10:49:58 -08:00
Dmitry Torokhov
d67ad78e09 Merge branch 'next' into for-linus
Prepare input updates for 4.16 merge window.
2018-02-01 00:37:30 -08:00
Linus Torvalds
168fe32a07 Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull poll annotations from Al Viro:
 "This introduces a __bitwise type for POLL### bitmap, and propagates
  the annotations through the tree. Most of that stuff is as simple as
  'make ->poll() instances return __poll_t and do the same to local
  variables used to hold the future return value'.

  Some of the obvious brainos found in process are fixed (e.g. POLLIN
  misspelled as POLL_IN). At that point the amount of sparse warnings is
  low and most of them are for genuine bugs - e.g. ->poll() instance
  deciding to return -EINVAL instead of a bitmap. I hadn't touched those
  in this series - it's large enough as it is.

  Another problem it has caught was eventpoll() ABI mess; select.c and
  eventpoll.c assumed that corresponding POLL### and EPOLL### were
  equal. That's true for some, but not all of them - EPOLL### are
  arch-independent, but POLL### are not.

  The last commit in this series separates userland POLL### values from
  the (now arch-independent) kernel-side ones, converting between them
  in the few places where they are copied to/from userland. AFAICS, this
  is the least disruptive fix preserving poll(2) ABI and making epoll()
  work on all architectures.

  As it is, it's simply broken on sparc - try to give it EPOLLWRNORM and
  it will trigger only on what would've triggered EPOLLWRBAND on other
  architectures. EPOLLWRBAND and EPOLLRDHUP, OTOH, are never triggered
  at all on sparc. With this patch they should work consistently on all
  architectures"

* 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits)
  make kernel-side POLL... arch-independent
  eventpoll: no need to mask the result of epi_item_poll() again
  eventpoll: constify struct epoll_event pointers
  debugging printk in sg_poll() uses %x to print POLL... bitmap
  annotate poll(2) guts
  9p: untangle ->poll() mess
  ->si_band gets POLL... bitmap stored into a user-visible long field
  ring_buffer_poll_wait() return value used as return value of ->poll()
  the rest of drivers/*: annotate ->poll() instances
  media: annotate ->poll() instances
  fs: annotate ->poll() instances
  ipc, kernel, mm: annotate ->poll() instances
  net: annotate ->poll() instances
  apparmor: annotate ->poll() instances
  tomoyo: annotate ->poll() instances
  sound: annotate ->poll() instances
  acpi: annotate ->poll() instances
  crypto: annotate ->poll() instances
  block: annotate ->poll() instances
  x86: annotate ->poll() instances
  ...
2018-01-30 17:58:07 -08:00
Linus Torvalds
672bb0fa9a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:

 - a fix for use-after-free in Synaptics RMI4 driver

 - correction to multitouch contact tracking on certain ALPS touchpads
   (which got broken when we tried to fix the 2-finger scrolling)

 - touchpad on Lenovo T640p is switched over to SMbus/RMI

 - a few device node refcount fixes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: synaptics-rmi4 - prevent UAF reported by KASAN
  Input: ALPS - fix multi-touch decoding on SS4 plus touchpads
  Input: synaptics - Lenovo Thinkpad T460p devices should use RMI
  Input: of_touchscreen - add MODULE_LICENSE
  Input: 88pm860x-ts - fix child-node lookup
  Input: twl6040-vibra - fix child-node lookup
  Input: twl4030-vibra - fix sibling-node lookup
2018-01-19 11:36:09 -08:00
Julia Lawall
698c03b474 Input: inline macros for MODULE_LICENSE, etc
Inline macro for MODULE_LICENSE to make the license information easy to
find, eg with grep.  Inline the other module-related macros at the same
time.

A simplified version of the semantic patch for the MODULE_LICENSE
case is as follows: (http://coccinelle.lip6.fr/)

// <smpl>
@s@
identifier i; expression e;
@@

@@
declarer name MODULE_LICENSE;
identifier s.i;
expression s.e;
@@
MODULE_LICENSE(
- i
+ e
 );
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
[dtor: added a couple of drivers missed by the script, removed a few unused
 DRIVER_VERSION macros]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-17 09:52:22 -08:00
Greg Kroah-Hartman
141fc3fcfd Input: remove unneeded MODULE_VERSION() usage in misc input drivers
MODULE_VERSION is useless for in-kernel drivers, so just remove all
usage of it in the misc input drivers.  Along with this, some
DRIVER_VERSION macros were removed as they are also pointless.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-16 16:48:24 -08:00
Greg Kroah-Hartman
9f1d1ea3e0 Input: remove unneeded DRIVER_LICENSE #defines
There is no need to #define the license of the driver, just put it in
the MODULE_LICENSE() line directly as a text string.

This allows tools that check that the module license matches the source
code license to work properly, as there is no need to unwind the
unneeded dereference.  For some of these drivers, the #define is just a
few lines above the MODULE_LICENSE() line, which is extra pointless.

Reported-by: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-16 16:47:33 -08:00
Deepa Dinamani
152194fe9c Input: extend usable life of event timestamps to 2106 on 32 bit systems
The input events use struct timeval to store event time, unfortunately
this structure is not y2038 safe and is being replaced in kernel with
y2038 safe structures.

Because of ABI concerns we can not change the size or the layout of
structure input_event, so we opt to re-interpreting the 'seconds' part
of timestamp as an unsigned value, effectively doubling the range of
values, to year 2106.

Newer glibc that has support for 32 bit applications to use 64 bit
time_t supplies __USE_TIME_BITS64 define [1], that we can use to present
the userspace with updated input_event layout. The updated layout will
cause the compile time breakage, alerting applications and distributions
maintainers to the issue. Existing 32 binaries will continue working
without any changes until 2038.

Ultimately userspace applications should switch to using monotonic or
boot time clocks, as realtime clock is not very well suited for input
event timestamps as it can go backwards (see a80b83b7b8 "Input: evdev -
add CLOCK_BOOTTIME support" by by John Stultz). With monotonic clock the
practical range of reported times will always fit into the pair of 32
bit values, as we do not expect any system to stay up for a hundred
years without a single reboot.

[1] https://sourceware.org/glibc/wiki/Y2038ProofnessDesign

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Patchwork-Id: 10148083
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-09 16:40:30 -08:00
Johan Hovold
dcaf12a8b0 Input: twl6040-vibra - fix child-node lookup
Fix child-node lookup during probe, which ended up searching the whole
device tree depth-first starting at parent rather than just matching on
its children.

Later sanity checks on node properties (which would likely be missing)
should prevent this from causing much trouble however, especially as the
original premature free of the parent node has already been fixed
separately (but that "fix" was apparently never backported to stable).

Fixes: e7ec014a47 ("Input: twl6040-vibra - update for device tree support")
Fixes: c52c545ead ("Input: twl6040-vibra - fix DT node memory management")
Cc: stable <stable@vger.kernel.org>     # 3.6
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: H. Nikolaus Schaller <hns@goldelico.com> (on Pyra OMAP5 hardware)
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-08 17:40:55 -08:00
Johan Hovold
5b18920199 Input: twl4030-vibra - fix sibling-node lookup
A helper purported to look up a child node based on its name was using
the wrong of-helper and ended up prematurely freeing the parent of-node
while searching the whole device tree depth-first starting at the parent
node.

Fixes: 64b9e4d803 ("input: twl4030-vibra: Support for DT booted kernel")
Fixes: e661d0a044 ("Input: twl4030-vibra - fix ERROR: Bad of_node_put() warning")
Cc: stable <stable@vger.kernel.org>     # 3.7
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-08 17:40:52 -08:00
Linus Torvalds
65c64d1845 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
 "Just a few driver fixups, nothing exciting"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: xen-kbdfront - do not advertise multi-touch pressure support
  Input: hideep - fix compile error due to missing include file
  Input: elants_i2c - do not clobber interrupt trigger on x86
  Input: joystick/analog - riscv has get_cycles()
  Input: elantech - add new icbody type 15
  Input: ims-pcu - fix typo in the error message
2018-01-05 16:45:06 -08:00
Oleksandr Andrushchenko
02a0d9216d Input: xen-kbdfront - do not advertise multi-touch pressure support
Some user-space applications expect multi-touch pressure
on contact to be reported if it is advertised in device
properties. Otherwise, such applications may treat reports
not as actual touches, but hovering. Currently this is
only advertised, but not reported.
Fix this by not advertising that ABS_MT_PRESSURE is supported.

Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Andrii Chepurnyi <andrii_chepurnyi@epam.com>
Patchwork-Id: 10140017
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-02 09:41:47 -08:00
Zhuohua Li
b8af0b5b92 Input: tps65218-pwrbutton - fix a spelling mistake in Kconfig
Fix a spelling mistake: buttong -> button

Signed-off-by: Zhuohua Li <lizhuohua1994@gmail.com>
Patchwork-Id: 10134469
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-01 22:54:42 -08:00
Linus Walleij
3c8a23c29d Input: gpio_tilt - delete driver
This driver was merged in 2011 as a tool for detecting the orientation
of a screen. The device driver assumes board file setup using the
platform data from <linux/input/gpio_tilt.h>. But no boards in the
kernel tree defines this platform data.

As I am faced with refactoring drivers to use GPIO descriptors and
pass decriptor tables from boards, or use the device tree device
drivers like these creates a serious problem: I cannot fix them and
cannot test them, not even compile-test them with a system actually
using it (no in-tree boardfile).

I suggest to delete this driver and rewrite it using device tree if
it is still in use on actively maintained systems.

I can also offer to rewrite it out of the blue using device tree if
someone promise to test it and help me iterate it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Patchwork-Id: 10133609
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-01 22:54:42 -08:00
Deepa Dinamani
b3495cecb2 Input: uinput - use monotonic times for timestamps
struct timeval which is part of struct input_event to maintain the event
times is not y2038 safe.

Real time timestamps are also not ideal for input_event as this time can go
backwards as noted in the patch a80b83b7b8 by John Stultz.

The patch switches the timestamps to use monotonic time from realtime time.
This is assuming no one is using absolute times from these timestamps.

The structure to maintain input events will be changed in a different
patch.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Patchwork-Id: 10118255
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-01 22:54:42 -08:00
Al Viro
afc9a42b74 the rest of drivers/*: annotate ->poll() instances
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-11-28 11:06:58 -05:00
Zhen Lei
5ddc3c656b Input: ims-pcu - fix typo in the error message
1. change "to" to "too".
2. move ")" to the front of "\n", which discovered by Joe Perches.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Reviewed-by: Joe Perches <joe@perches.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-11-26 16:16:31 -08:00
Linus Torvalds
9f7a9b1191 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - three new touchscreen drivers: EETI EXC3000, HiDeep, and Samsung
   S6SY761

 - the timer API conversion (setup_timer() -> timer_setup())

 - a few drivers swiytched to using managed API for creating custom
   device attributes

 - other assorted fixed and cleanups.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (50 commits)
  Input: gamecon - mark expected switch fall-throughs
  Input: sidewinder - mark expected switch fall-throughs
  Input: spaceball - mark expected switch fall-throughs
  Input: uinput - unlock on allocation failure in ioctl
  Input: add support for the Samsung S6SY761 touchscreen
  Input: add support for HiDeep touchscreen
  Input: st1232 - remove obsolete platform device support
  Input: convert autorepeat timer to use timer_setup()
  media: ttpci: remove autorepeat handling and use timer_setup
  Input: cyttsp4 - avoid overflows when calculating memory sizes
  Input: mxs-lradc - remove redundant assignment to pointer input
  Input: add I2C attached EETI EXC3000 multi touch driver
  Input: goodix - support gt1151 touchpanel
  Input: ps2-gpio - actually abort probe when connected to sleeping GPIOs
  Input: hil_mlc - convert to using timer_setup()
  Input: hp_sdc - convert to using timer_setup()
  Input: touchsceen - convert timers to use timer_setup()
  Input: keyboard - convert timers to use timer_setup()
  Input: uinput - fold header into the driver proper
  Input: uinput - remove uinput_allocate_device()
  ...
2017-11-14 18:07:18 -08:00