18 Dec, 2015
2 commits
-
Move timestamp from struct vb2_v4l2_buffer to struct vb2_buffer
for common use, and change its type to u64 in order to handling
y2038 problem. This patch also includes all device drivers' changes related to
this restructuring.Signed-off-by: Junghak Sung
Signed-off-by: Geunyoung Kim
Acked-by: Seung-Woo Kim
Acked-by: Inki Dae
Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab -
The queue_setup callback has a void pointer that is just for V4L2
and is the pointer to the v4l2_format struct that was passed to
VIDIOC_CREATE_BUFS. The idea was that drivers would use the information
from that struct to buffers suitable for the requested format.After the vb2 split series this pointer is now a void pointer,
which is ugly, and the reality is that all existing drivers will
effectively just look at the sizeimage field of v4l2_format.To make this more generic the queue_setup callback is changed:
the void pointer is dropped, instead if the *num_planes argument
is 0, then use the current format size, if it is non-zero, then
it contains the number of requested planes and the sizes array
contains the requested sizes. If either is unsupported, then return
-EINVAL, otherwise use the requested size(s).Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
14 Nov, 2015
2 commits
-
Pull more input updates from Dmitry Torokhov:
"An update to the tsc2005 driver that allows it to also support tsc2004
(basically the same controller, but uses i2c instead of spi bus), and
a couple of bug fixes"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: parkbd - drop bogus __init from parkbd_allocate_serio()
Input: elantech - add Fujitsu Lifebook U745 to force crc_enabled
Input: tsc2004 - add support for tsc2004
Input: tsc200x-core - rename functions and variables
Input: tsc2005 - separate SPI and core functions -
Prepare second round of input updates for 4.3 merge window.
10 Nov, 2015
2 commits
-
Switch everything to the new and more capable implementation of abs().
Mainly to give the new abs() a bit of a workout.Cc: Michal Nazarewicz
Cc: John Stultz
Cc: Ingo Molnar
Cc: Steven Rostedt
Cc: Peter Zijlstra
Cc: Masami Hiramatsu
Cc: Peter Zijlstra
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
WARNING: vmlinux.o(.text+0x1056606): Section mismatch in reference from the function parkbd_attach() to the function .init.text:parkbd_allocate_serio()
The function parkbd_attach() references
the function __init parkbd_allocate_serio().
This is often because parkbd_attach lacks a __init
annotation or the annotation of parkbd_allocate_serio is wrong.Commit 33ca8ab97cbb676d ("Input: parkbd - use parallel port device
model") dropped the __init attribute from the sole caller of
parkbd_allocate_serio(), but forgot to remove it from
parkbd_allocate_serio() itself.Fixes: 33ca8ab97cbb676d ("Input: parkbd - use parallel port device model")
Signed-off-by: Geert Uytterhoeven
Acked-by: Sudip Mukherjee
Signed-off-by: Dmitry Torokhov
07 Nov, 2015
2 commits
-
Pull input updates from Dmitry Torokhov:
"Items of note:- evdev users can now limit or mask the kind of events they will
receive. This will allow applications such as power manager or
network manager to only be woken when user presses special keys
such as KEY_POWER or KEY_WIFI and not be bothered with ordinary
key presses coming from keyboard- support for FocalTech FT6236 touchscreen controller
- support for ROHM BU21023/24 touchscreen controller
- edt-ft5x06 touchscreen driver got a face lift and can now be used
with FT5506- support for Google Fiber TV Box remote controls
- improvements in xpad driver (with more to come)
- several parport-based drivers have been switched to the new device
model- other miscellaneous driver improvements"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (70 commits)
HID: hid-gfrm: avoid warning for input_configured API change
HID: hid-input: allow input_configured callback return errors
Input: evdev - fix bug in checking duplicate clock change request
Input: add userio module
Input: evdev - add event-mask API
Input: snvs_pwrkey - remove duplicated semicolon
HID: hid-gfrm: Google Fiber TV Box remote controls
Input: e3x0-button - update Kconfig description
Input: tegra-kbc - drop use of IRQF_NO_SUSPEND flag
Input: tegra-kbc - enable support for the standard "wakeup-source" property
Input: xen - check return value of xenbus_printf
Input: hp_sdc_rtc - fix y2038 problem in proc_show
Input: nomadik-ske-keypad - fix a trivial typo
Input: xpad - fix clash of presence handling with LED setting
Input: edt-ft5x06 - work around FT5506 firmware bug
Input: edt-ft5x06 - add support for FT5506
Input: edt-ft5x06 - add support for different max support points
Input: edt-ft5x06 - use max support points to determine how much to read
Input: rotary-encoder - add support for quarter-period mode
Input: rotary-encoder - use of_property_read_bool
... -
Another Lifebook machine that needs the same quirk as other similar
models to make the driver working.Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=883192
Cc:
Signed-off-by: Takashi Iwai
Signed-off-by: Dmitry Torokhov
06 Nov, 2015
2 commits
-
Pull spi updates from Mark Brown:
"Quite a lot of activity in SPI this cycle, almost all of it in drivers
with a few minor improvements and tweaks in the core.- Updates to pxa2xx to support Intel Broxton and multiple chip selects.
- Support for big endian in the bcm63xx driver.
- Multiple slave support for the mt8173
- New driver for the auxiliary SPI controller in bcm2835 SoCs.
- Support for Layerscale SoCs in the Freescale DSPI driver"* tag 'spi-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (87 commits)
spi: pxa2xx: Rework self-initiated platform data creation for non-ACPI
spi: pxa2xx: Add support for Intel Broxton
spi: pxa2xx: Detect number of enabled Intel LPSS SPI chip select signals
spi: pxa2xx: Add output control for multiple Intel LPSS chip selects
spi: pxa2xx: Use LPSS prefix for defines that are Intel LPSS specific
spi: Add DSPI support for layerscape family
spi: ti-qspi: improve ->remove() callback
spi/spi-xilinx: Fix race condition on last word read
spi: Drop owner assignment from spi_drivers
spi: Add THIS_MODULE to spi_driver in SPI core
spi: Setup the master controller driver before setting the chipselect
spi: dw: replace magic constant by DW_SPI_DR
spi: mediatek: mt8173 spi multiple devices support
spi: mediatek: handle controller_data in mtk_spi_setup
spi: mediatek: remove mtk_spi_config
spi: mediatek: Update document devicetree bindings to support multiple devices
spi: fix kernel-doc warnings about missing return desc in spi.c
spi: fix kernel-doc warnings about missing return desc in spi.h
spi: pxa2xx: Align a few defines
spi: pxa2xx: Save other reg_cs_ctrl bits when configuring chip select
... -
Pull media updates from Mauro Carvalho Chehab:
"Media updates, including:- Lots of improvements at the kABI documentation
- Split of Videobuf2 into a common part and a V4L2 specific one
- Split of the VB2 tracing events into a separate header file
- s5p-mfc got support for Exynos 5433
- v4l2 fixes for 64-bits alignment when running 32 bits userspace
on ARM
- Added support for SDR radio transmitter at core, vivid and hackrf
drivers
- Some y2038 fixups
- Some improvements at V4L2 colorspace support
- saa7164 converted to use the V4L2 core control framework
- several new boards additions, cleanups and fixupsPS: There are two patches for scripts/kernel-doc that are needed by
the documentation patches on Media. Jon is OK on merging those via
my tree"* tag 'media/v4.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (146 commits)
[media] c8sectpfe: Remove select on CONFIG_FW_LOADER_USER_HELPER_FALLBACK
[media] DocBook media: update copyright/version numbers
[media] ivtv: Convert to get_user_pages_unlocked()
[media] media/v4l2-ctrls: fix setting autocluster to manual with VIDIOC_S_CTRL
[media] DocBook media: Fix a typo in encoder cmd
[media] DocBook: add SDR specific info to G_MODULATOR / S_MODULATOR
[media] DocBook: add SDR specific info to G_TUNER / S_TUNER
[media] hackrf: do not set human readable name for formats
[media] hackrf: add support for transmitter
[media] hackrf: switch to single function which configures everything
[media] hackrf: add control for RF amplifier
[media] DocBook: add modulator type field
[media] v4l: add type field to v4l2_modulator struct
[media] DocBook: document SDR transmitter
[media] v4l2: add support for SDR transmitter
[media] DocBook: document tuner RF gain control
[media] v4l2: add RF gain control
[media] v4l2: rename V4L2_TUNER_ADC to V4L2_TUNER_SDR
[media] media/vivid-osd: fix info leak in ioctl
[media] media: videobuf2: Move v4l2-specific stuff to videobuf2-v4l2
...
05 Nov, 2015
1 commit
-
Pull power management and ACPI updates from Rafael Wysocki:
"Quite a new features are included this time.First off, the Collaborative Processor Performance Control interface
(version 2) defined by ACPI will now be supported on ARM64 along with
a cpufreq frontend for CPU performance scaling.Second, ACPI gets a new infrastructure for the early probing of IRQ
chips and clock sources (along the lines of the existing similar
mechanism for DT).Next, the ACPI core and the generic device properties API will now
support a recently introduced hierarchical properties extension of the
_DSD (Device Specific Data) ACPI device configuration object. If the
ACPI platform firmware uses that extension to organize device
properties in a hierarchical way, the kernel will automatically handle
it and make those properties available to device drivers via the
generic device properties API.It also will be possible to build the ACPICA's AML interpreter
debugger into the kernel now and use that to diagnose AML-related
problems more efficiently. In the future, this should make it
possible to single-step AML execution and do similar things.
Interesting stuff, although somewhat experimental at this point.Finally, the PM core gets a new mechanism that can be used by device
drivers to distinguish between suspend-to-RAM (based on platform
firmware support) and suspend-to-idle (or other variants of system
suspend the platform firmware is not involved in) and possibly
optimize their device suspend/resume handling accordingly.In addition to that, some existing features are re-organized quite
substantially.First, the ACPI-based handling of PCI host bridges on x86 and ia64 is
unified and the common code goes into the ACPI core (so as to reduce
code duplication and eliminate non-essential differences between the
two architectures in that area).Second, the Operating Performance Points (OPP) framework is
reorganized to make the code easier to find and follow.Next, the cpufreq core's sysfs interface is reorganized to get rid of
the "primary CPU" concept for configurations in which the same
performance scaling settings are shared between multiple CPUs.Finally, some interfaces that aren't necessary any more are dropped
from the generic power domains framework.On top of the above we have some minor extensions, cleanups and bug
fixes in multiple places, as usual.Specifics:
- ACPICA update to upstream revision 20150930 (Bob Moore, Lv Zheng).
The most significant change is to allow the AML debugger to be
built into the kernel. On top of that there is an update related
to the NFIT table (the ACPI persistent memory interface) and a few
fixes and cleanups.- ACPI CPPC2 (Collaborative Processor Performance Control v2) support
along with a cpufreq frontend (Ashwin Chaugule).This can only be enabled on ARM64 at this point.
- New ACPI infrastructure for the early probing of IRQ chips and
clock sources (Marc Zyngier).- Support for a new hierarchical properties extension of the ACPI
_DSD (Device Specific Data) device configuration object allowing
the kernel to handle hierarchical properties (provided by the
platform firmware this way) automatically and make them available
to device drivers via the generic device properties interface
(Rafael Wysocki).- Generic device properties API extension to obtain an index of
certain string value in an array of strings, along the lines of
of_property_match_string(), but working for all of the supported
firmware node types, and support for the "dma-names" device
property based on it (Mika Westerberg).- ACPI core fix to parse the MADT (Multiple APIC Description Table)
entries in the order expected by platform firmware (and mandated by
the specification) to avoid confusion on systems with more than 255
logical CPUs (Lukasz Anaczkowski).- Consolidation of the ACPI-based handling of PCI host bridges on x86
and ia64 (Jiang Liu).- ACPI core fixes to ensure that the correct IRQ number is used to
represent the SCI (System Control Interrupt) in the cases when it
has been re-mapped (Chen Yu).- New ACPI backlight quirk for Lenovo IdeaPad S405 (Hans de Goede).
- ACPI EC driver fixes (Lv Zheng).
- Assorted ACPI fixes and cleanups (Dan Carpenter, Insu Yun, Jiri
Kosina, Rami Rosen, Rasmus Villemoes).- New mechanism in the PM core allowing drivers to check if the
platform firmware is going to be involved in the upcoming system
suspend or if it has been involved in the suspend the system is
resuming from at the moment (Rafael Wysocki).This should allow drivers to optimize their suspend/resume handling
in some cases and the changes include a couple of users of it (the
i8042 input driver, PCI PM).- PCI PM fix to prevent runtime-suspended devices with PME enabled
from being resumed during system suspend even if they aren't
configured to wake up the system from sleep (Rafael Wysocki).- New mechanism to report the number of a wakeup IRQ that woke up the
system from sleep last time (Alexandra Yates).- Removal of unused interfaces from the generic power domains
framework and fixes related to latency measurements in that code
(Ulf Hansson, Daniel Lezcano).- cpufreq core sysfs interface rework to make it handle CPUs that
share performance scaling settings (represented by a common cpufreq
policy object) more symmetrically (Viresh Kumar).This should help to simplify the CPU offline/online handling among
other things.- cpufreq core fixes and cleanups (Viresh Kumar).
- intel_pstate fixes related to the Turbo Activation Ratio (TAR)
mechanism on client platforms which causes the turbo P-states range
to vary depending on platform firmware settings (Srinivas
Pandruvada).- intel_pstate sysfs interface fix (Prarit Bhargava).
- Assorted cpufreq driver (imx, tegra20, powernv, integrator) fixes
and cleanups (Bai Ping, Bartlomiej Zolnierkiewicz, Shilpasri G
Bhat, Luis de Bethencourt).- cpuidle mvebu driver cleanups (Russell King).
- OPP (Operating Performance Points) framework code reorganization to
make it more maintainable (Viresh Kumar).- Intel Broxton support for the RAPL (Running Average Power Limits)
power capping driver (Amy Wiles).- Assorted power management code fixes and cleanups (Dan Carpenter,
Geert Uytterhoeven, Geliang Tang, Luis de Bethencourt, Rasmus
Villemoes)"* tag 'pm+acpi-4.4-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (108 commits)
cpufreq: postfix policy directory with the first CPU in related_cpus
cpufreq: create cpu/cpufreq/policyX directories
cpufreq: remove cpufreq_sysfs_{create|remove}_file()
cpufreq: create cpu/cpufreq at boot time
cpufreq: Use cpumask_copy instead of cpumask_or to copy a mask
cpufreq: ondemand: Drop unnecessary locks from update_sampling_rate()
PM / Domains: Merge measurements for PM QoS device latencies
PM / Domains: Don't measure ->start|stop() latency in system PM callbacks
PM / clk: Fix broken build due to non-matching code and header #ifdefs
ACPI / Documentation: add copy_dsdt to ACPI format options
ACPI / sysfs: correctly check failing memory allocation
ACPI / video: Add a quirk to force native backlight on Lenovo IdeaPad S405
ACPI / CPPC: Fix potential memory leak
ACPI / CPPC: signedness bug in register_pcc_channel()
ACPI / PAD: power_saving_thread() is not freezable
ACPI / PM: Fix incorrect wakeup IRQ setting during suspend-to-idle
ACPI: Using correct irq when waiting for events
ACPI: Use correct IRQ when uninstalling ACPI interrupt handler
cpuidle: mvebu: disable the bind/unbind attributes and use builtin_platform_driver
cpuidle: mvebu: clean up multiple platform drivers
...
04 Nov, 2015
5 commits
-
…pi/topic/owner', 'spi/topic/pxa' and 'spi/topic/pxa2xx' into spi-next
-
This adds support for the i2c based tsc2004 touchscreen controller.
Signed-off-by: Michael Welling
Acked-by: Rob Herring
Signed-off-by: Dmitry Torokhov -
The functions, variables, and defines of the new tsc200x-core.c are
renamed to tsc200x instead of tsc2005 avoid possible confusion.Signed-off-by: Michael Welling
Signed-off-by: Dmitry Torokhov -
This patch separates the SPI functionality from core functionality
that overlaps with the tsc2004.Prepares kernel for new tsc2004 driver without much redundant code.
Signed-off-by: Michael Welling
Signed-off-by: Dmitry Torokhov -
Prepare first round of input updates for 4.3 merge window.
02 Nov, 2015
1 commit
-
* pm-sleep:
PM / hibernate: fix a comment typo
input: i8042: Avoid resetting controller on system suspend/resume
PM / PCI / ACPI: Kick devices that might have been reset by firmware
PM / sleep: Add flags to indicate platform firmware involvement
PM / sleep: Drop pm_request_idle() from pm_generic_complete()
PCI / PM: Avoid resuming more devices during system suspend
PM / wakeup: wakeup_source_create: use kstrdup_const
PM / sleep: Report interrupt that caused system wakeup
01 Nov, 2015
1 commit
-
clk_type and clkid stores different predefined clock identification
values so they cannot be compared for checking duplicate clock change
request. Therefore, lets fix it to avoid unexpected results.Signed-off-by: Aniroop Mathur
Signed-off-by: Dmitry Torokhov
31 Oct, 2015
1 commit
-
Pull input layer fixes from Dmitry Torokhov:
- a change to the ALPS driver where we had limit the quirk for
trackstick handling from being active on all Dells to just a few
models- a fix for a build dependency issue in the sur40 driver
- a small clock handling fixup in the LPC32xx touchscreen driver
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: alps - only the Dell Latitude D420/430/620/630 have separate stick button bits
Input: sur40 - add dependency on VIDEO_V4L2
Input: lpc32xx_ts - fix warnings caused by enabling unprepared clock
28 Oct, 2015
2 commits
-
Debugging input devices, specifically laptop touchpads, can be tricky
without having the physical device handy. Here we try to remedy that
with userio. This module allows an application to connect to a character
device provided by the kernel, and emulate any serio device. In
combination with userspace programs that can record PS/2 devices and
replay them through the /dev/userio device, this allows developers to
debug driver issues on the PS/2 level with devices simply by requesting
a recording from the user experiencing the issue without having to have
the physical hardware in front of them.Signed-off-by: Stephen Chandler Paul
Reviewed-by: David Herrmann
Signed-off-by: Dmitry Torokhov -
An spi_driver does not need to set an owner, it will be populated by the
driver core.Signed-off-by: Andrew F. Davis
Acked-by: Jonathan Cameron
Signed-off-by: Mark Brown
27 Oct, 2015
3 commits
-
Hardware manufacturers group keys in the weirdest way possible. This may
cause a power-key to be grouped together with normal keyboard keys and
thus be reported on the same kernel interface.However, user-space is often only interested in specific sets of events.
For instance, daemons dealing with system-reboot (like systemd-logind)
listen for KEY_POWER, but are not interested in any main keyboard keys.
Usually, power keys are reported via separate interfaces, however,
some i8042 boards report it in the AT matrix. To avoid waking up those
system daemons on each key-press, we had two ideas:
- split off KEY_POWER into a separate interface unconditionally
- allow filtering a specific set of events on evdev FDsSplitting of KEY_POWER is a rather weird way to deal with this and may
break backwards-compatibility. It is also specific to KEY_POWER and might
be required for other stuff, too. Moreover, we might end up with a huge
set of input-devices just to have them properly split.Hence, this patchset implements the second idea: An event-mask to specify
which events you're interested in. Two ioctls allow setting this mask for
each event-type. If not set, all events are reported. The type==0 entry is
used same as in EVIOCGBIT to set the actual EV_* mask of filtered events.
This way, you have a two-level filter.We are heavily forward-compatible to new event-types and event-codes. So
new user-space will be able to run on an old kernel which doesn't know the
given event-codes or event-types.Signed-off-by: David Herrmann
Signed-off-by: Dmitry Torokhov -
Remove the unneded semicolon since it is clearly a typo error.
Signed-off-by: Javier Martinez Canillas
Signed-off-by: Dmitry Torokhov -
commit 92bac83dd79e ("Input: alps - non interleaved V2 dualpoint has
separate stick button bits") assumes that all alps v2 non-interleaved
dual point setups have the separate stick button bits.Later we limited this to Dell laptops only because of reports that this
broke things on non Dell laptops. Now it turns out that this breaks things
on the Dell Latitude D600 too. So it seems that only the Dell Latitude
D420/430/620/630, which all share the same touchpad / stick combo,
have these separate bits.This patch limits the checking of the separate bits to only these models
fixing regressions with other models.Reported-and-tested-by: Larry Finger
Cc: stable@vger.kernel.org
Tested-by: Hans de Goede
Signed-off-by: Hans de Goede
Acked-By: Pali Rohár
Signed-off-by: Dmitry Torokhov
26 Oct, 2015
3 commits
-
The driver is now used for the entire USRP e3xx series,
this commit fixes the description that will be displayed in
the menu accordingly.Signed-off-by: Moritz Fischer
Signed-off-by: Dmitry Torokhov -
The driver handles wakeup irq correctly using device_init_wakeup and
enable_irq_wake. There's no need to use IRQF_NO_SUSPEND while registering
the interrupt.This patch removes the use of IRQF_NO_SUSPEND flag.
Signed-off-by: Sudeep Holla
Acked-by: Thierry Reding
Acked-by: Laxman Dewangan
Signed-off-by: Dmitry Torokhov -
Though the tegra-kbc driver should/will continue to support the legacy
"nvidia,wakeup-source" property to enable keyboard as the wakeup source,
we need to add support for the new standard property "wakeup-source".This patch adds support for "wakeup-source" property in addition to the
existing "nvidia,wakeup-source" property.Signed-off-by: Sudeep Holla
Signed-off-by: Dmitry Torokhov
23 Oct, 2015
3 commits
-
Internally, xenbus_printf uses memory allocation, so it can fail under
memory pressure, leaving the input device configured as absolute with the
backend supplying relative coordinates.Signed-off-by: Insu Yun
Reviewed-by: Julien Grall
Signed-off-by: Dmitry Torokhov -
hp_sdc_rtc_proc_show() use timeval to store the time, which will overflow
in 2038.This patch fixes this problem by replacing timeval with timespec64.
hp_sdc_rtc_proc_show() only output string, so that userspace will work
normally if we apply this patch.Not all timer in i8042 have y2038 risk(handshake, match timer, etc),
Replacements in those timer are just for consistency.Signed-off-by: WEN Pingbo
Reviewed-by: Arnd Bergmann
Signed-off-by: Dmitry Torokhov -
s/regsiter/register/
Signed-off-by: Geliang Tang
Signed-off-by: Dmitry Torokhov
21 Oct, 2015
1 commit
-
Replace struct v4l2_format * with void * to make queue_setup()
for common use.
And then, modify all device drivers related with this change.Signed-off-by: Junghak Sung
Signed-off-by: Geunyoung Kim
Acked-by: Seung-Woo Kim
Acked-by: Inki Dae
Signed-off-by: Hans Verkuil
[hans.verkuil@cisco.com: fix missing const in fimc-lite.c]Signed-off-by: Mauro Carvalho Chehab
19 Oct, 2015
2 commits
-
Do not call xpad_identify_controller at init with wireless devices: it
conflicts with the already sent presence packet and will be called by
xpad360w_process_packet as needed anyway.Signed-off-by: Pavel Rojtberg
Signed-off-by: Dmitry Torokhov -
Fix build errors due to missing Kconfig dependency.
drivers/built-in.o: In function `sur40_disconnect':
sur40.c:(.text+0x22be6e): undefined reference to `video_unregister_device'
sur40.c:(.text+0x22be77): undefined reference to `v4l2_device_unregister'
drivers/built-in.o: In function `sur40_process_video':
sur40.c:(.text+0x22c1d4): undefined reference to `v4l2_get_timestamp'
drivers/built-in.o: In function `sur40_probe':
sur40.c:(.text+0x22ca82): undefined reference to `v4l2_device_register'
sur40.c:(.text+0x22cb1a): undefined reference to `v4l2_device_unregister'
sur40.c:(.text+0x22cbf7): undefined reference to `video_device_release_empty'
sur40.c:(.text+0x22cc53): undefined reference to `__video_register_device'
sur40.c:(.text+0x22cc90): undefined reference to `video_unregister_device'
drivers/built-in.o: In function `sur40_vidioc_querycap':
sur40.c:(.text+0x22ccb0): undefined reference to `video_devdata'Signed-off-by: Randy Dunlap
Signed-off-by: Dmitry Torokhov
18 Oct, 2015
1 commit
-
If common clock framework is configured, the driver generates a warning,
which is fixed by this change:root@devkit3250:~# cat /dev/input/touchscreen0
------------[ cut here ]------------
WARNING: CPU: 0 PID: 720 at drivers/clk/clk.c:727 clk_core_enable+0x2c/0xa4()
Modules linked in: sc16is7xx snd_soc_uda1380
CPU: 0 PID: 720 Comm: cat Not tainted 4.3.0-rc2+ #199
Hardware name: LPC32XX SoC (Flattened Device Tree)
Backtrace:
[<>] (dump_backtrace) from [<>] (show_stack+0x18/0x1c)
[<>] (show_stack) from [<>] (dump_stack+0x20/0x28)
[<>] (dump_stack) from [<>] (warn_slowpath_common+0x90/0xb8)
[<>] (warn_slowpath_common) from [<>] (warn_slowpath_null+0x24/0x2c)
[<>] (warn_slowpath_null) from [<>] (clk_core_enable+0x2c/0xa4)
[<>] (clk_core_enable) from [<>] (clk_enable+0x24/0x38)
[<>] (clk_enable) from [<>] (lpc32xx_setup_tsc+0x18/0xa0)
[<>] (lpc32xx_setup_tsc) from [<>] (lpc32xx_ts_open+0x14/0x1c)
[<>] (lpc32xx_ts_open) from [<>] (input_open_device+0x74/0xb0)
[<>] (input_open_device) from [<>] (evdev_open+0x110/0x16c)
[<>] (evdev_open) from [<>] (chrdev_open+0x1b4/0x1dc)
[<>] (chrdev_open) from [<>] (do_dentry_open+0x1dc/0x2f4)
[<>] (do_dentry_open) from [<>] (vfs_open+0x6c/0x70)
[<>] (vfs_open) from [<>] (path_openat+0xb4c/0xddc)
[<>] (path_openat) from [<>] (do_filp_open+0x40/0x8c)
[<>] (do_filp_open) from [<>] (do_sys_open+0x124/0x1c4)
[<>] (do_sys_open) from [<>] (SyS_open+0x2c/0x30)
[<>] (SyS_open) from [<>] (ret_fast_syscall+0x0/0x38)Signed-off-by: Vladimir Zapolskiy
Signed-off-by: Dmitry Torokhov
17 Oct, 2015
6 commits
-
Pull input fixes from Dmitry Torokhov:
"Just two small fixups to ads7846 touchscreen controller driver and
Cypress touchpad driver"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: cyapa - fix the copy paste error on electrodes_rx value
Input: ads7846 - correct the value got from SPI -
In the touchscreen controller ISR, reading the tsc starting from
register 0x2 causes the tsc to infrequently update the detected
finger's x and y coordinate. The irq pin toggles at a fast rate to
indicate touch events are happening. However, the tsc on average
updates the touch point's x and y value every ~100 ms which is much
slower than the advertised rate of 100+ Hz. This leads to multiple reads
within this ~100 ms time window returning the same value.Example:
X: 10 , Y: 30
X: 10 , Y: 30
X: 10, Y: 30
..
// After 100 ms
X: 300, Y: 300
X: 300, y: 300
..
// After 100 ms
X: 1743, Y: 621
X: 1743, Y: 621For some reason if instead of starting to read at register 0x2 you
start reading at register 0x0 this issue isn't seen. This seems like
a quirk only seen in the EDT FT5506 so to fix this issue simply
adjust the code to start reading from 0x0. Technically this isn't wrong
so no regressions should be seen with other touchscreen controllers
supported by this driver.Signed-off-by: Franklin S Cooper Jr
Signed-off-by: Dmitry Torokhov -
FT5506 is essentially the same as other FT5x06 devices other than
supporting 10 support points.Signed-off-by: Franklin S Cooper Jr
Signed-off-by: Dmitry Torokhov -
Update the code so that the maximum supported points aren't hard coded but
can be changed.Set the maximum support points based on the data passed along side the
compatible field.Signed-off-by: Franklin S Cooper Jr
Signed-off-by: Dmitry Torokhov -
Calculate the amount of data that needs to be read for the specified max
number of support points. If the maximum number of support points changes
then the amount that is read from the touch screen controller should
reflect this.Signed-off-by: Franklin S Cooper Jr
Signed-off-by: Dmitry Torokhov -
Some encoders have both outputs low in stable states, others also have
a stable state with both outputs high (half-period mode) and some have
a stable state in all steps (quarter-period mode). The driver used to
support the former states and with this change it can also support the
later.This commit also deprecates the 'half-period' property and introduces
a new property 'steps-per-period'. This property specifies the
number of steps (stable states) produced by the rotary encoder
for each GPIO period.Signed-off-by: Guido Martínez
Signed-off-by: Ezequiel Garcia
Acked-by: Rob Herring
Signed-off-by: Dmitry Torokhov
