| Commit message (Collapse) | Author | Age | Files | Lines |
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The vendor-assigned firmware project number is restricted to the
generic project number (15); however the vendor may assign other
project numbers to specific applications and customers.
These custom project numbers may be based on forwards-compatible
firmware revision 1.x. However, the driver unnecessarily rejects
anything older than firmware revision 2.0.
To support other applications, remove these unnecessarily strict
checks and enter the bootloader only for truly incompatible A000
devices.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/20210313191236.4366-5-jeff@labundy.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add the read-only 'fw_info' attribute which reports information
about the device's firmware in the following format:
a.b.c.d:e.f
Where:
a = Product number (e.g. 40 for IQS550)
b = Project number (e.g. 15)
c = Firmware revision (major)
d = Firmware revision (minor)
e = Customer-assigned exported file version (major)
f = Customer-assigned exported file version (minor)
As part of the corresponding rework to uses of 'bl_status', the
IQS5XX_BL_STATUS_RESET definition is dropped with 0 used in its
place instead.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/20210313191236.4366-4-jeff@labundy.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Set the maximum ABS_MT_PRESSURE value and use the existing U16_MAX
definition instead of a magic number to validate ABS_MT_POSITION_X
and ABS_MT_POSITION_Y.
Also use input_set_abs_params() rather than input_abs_set_max() to
avoid having to call input_set_capability() separately.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/20210313191236.4366-3-jeff@labundy.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Replace 'http' with 'https' and correct the spelling of the nearby
word 'datasheet'.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/20210313191236.4366-2-jeff@labundy.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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s/subsytem/subsystem/
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20210322022030.3857089-1-unixbhaskar@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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According to datasheets, chips like mXT1386 have a WAKE line, it is used
to wake the chip up from deep sleep mode before communicating with it via
the I2C-compatible interface.
If the WAKE line is connected to a GPIO line, the line must be asserted
25 ms before the host attempts to communicate with the controller. If the
WAKE line is connected to the SCL pin, the controller will send a NACK on
the first attempt to address it, the host must then retry 25 ms later.
Implement the wake-up methods in the driver. Touchscreen now works
properly on devices like Acer A500 tablet, fixing problems like this:
atmel_mxt_ts 0-004c: __mxt_read_reg: i2c transfer failed (-121)
atmel_mxt_ts 0-004c: mxt_bootloader_read: i2c recv failed (-121)
atmel_mxt_ts 0-004c: Trying alternate bootloader address
atmel_mxt_ts 0-004c: mxt_bootloader_read: i2c recv failed (-121)
atmel_mxt_ts: probe of 0-004c failed with error -121
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210302102158.10533-3-digetx@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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There is error from cppcheck tool.
"Shifting signed 32-bit value by 31 bits is undefined behaviour errors"
Signed-off-by: edison.jiang <jiangzhipeng@yulong.com>
Link: https://lore.kernel.org/r/20210316153150.1207-1-jzp0409@163.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Device property API allows to gather device resources from different sources,
such as ACPI. Convert the drivers to unleash the power of device property API.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210314210951.645783-2-andy.shevchenko@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This converts the driver to use GPIO descriptors.
Note that it now uses logical polarity and thus nagation has been dropped.
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20210314210951.645783-1-andy.shevchenko@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add a sysfs attribute to query the type of the touchscreen device.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://lore.kernel.org/r/20210125182527.1225245-5-l.stach@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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If the device is stuck in bootloader (maybe due to blank or corrupted
application firmware) it won't answer a query for the firmware version.
Fall back to returning the bootloader version in that case.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://lore.kernel.org/r/20210125182527.1225245-4-l.stach@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Factor out the vendor data i2c request handling to make it reusable
for other functions. Also don't cache the model and firmware version
string in the device private data as we never use the cached version,
but always read from the device.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://lore.kernel.org/r/20210125182527.1225245-3-l.stach@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Split out the multitouch event handling into its own function to allow other
events to be handled in the IRQ handler without disturbing the MT handling.
Now that things are separated a bit more, stop treating vendor data requests
special by cehcking for a locked mutex, but just look at the event ID to
figure out if the message is a MT report or a vendor data query reply.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://lore.kernel.org/r/20210125182527.1225245-2-l.stach@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Drop unnecessary zero-checking of ABS_MT_TOUCH_MAJOR resolution since
there is no difference between setting resolution to 0 vs not setting
it at all. This change makes code cleaner a tad.
Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210328235507.19240-1-digetx@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Touchscreen firmware of ASUS Transformer TF700T reports zeros for the phys
size. Hence check whether the size is zero and don't set the resolution in
this case.
Reported-by: Jasper Korten <jja2000@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210302100824.3423-1-digetx@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The touch coordinate register contains the following:
byte 3 byte 2 byte 1
+--------+--------+ +-----------------+ +-----------------+
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| X[3:0] | Y[3:0] | | Y[11:4] | | X[11:4] |
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+--------+--------+ +-----------------+ +-----------------+
Bytes 2 and 1 need to be shifted left by 4 bits, the least significant
nibble of each is stored in byte 3. Currently they are only
being shifted by 3 causing the reported coordinates to be incorrect.
This matches downstream examples, and has been confirmed on my
device (OnePlus 7 Pro).
Fixes: 0145a7141e59 ("Input: add support for the Samsung S6SY761 touchscreen")
Signed-off-by: Caleb Connolly <caleb@connolly.tech>
Reviewed-by: Andi Shyti <andi@etezian.org>
Link: https://lore.kernel.org/r/20210305185710.225168-1-caleb@connolly.tech
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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NORMAL (0x0) and IDLE (0x4) are really two different states. Hence you
cannot check for both using a bitmask, as that checks for IDLE only,
breaking operation for devices that are in NORMAL state.
Fix the wait function to report either state as ready.
Fixes: 6524d8eac258452e ("Input: st1232 - add IDLE state as ready condition")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Michael Tretter <m.tretter@pengutronix.de>
Link: https://lore.kernel.org/r/20210223090201.1430542-1-geert+renesas@glider.be
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Prepare input updates for 5.12 merge window.
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Merge with mainline to get latest APIs and device tree bindings.
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"Nothing terribly interesting, just a few fixups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: xpad - sync supported devices with fork on GitHub
Input: ariel-pwrbutton - remove unused variable ariel_pwrbutton_id_table
Input: goodix - add support for Goodix GT9286 chip
dt-bindings: input: touchscreen: goodix: Add binding for GT9286 IC
dt-bindings: input: adc-keys: clarify description
Input: ili210x - implement pressure reporting for ILI251x
Input: i8042 - unbreak Pegatron C15B
Input: st1232 - wait until device is ready before reading resolution
Input: st1232 - do not read more bytes than needed
Input: st1232 - fix off-by-one error in resolution handling
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- support for inhibiting input devices at request from userspace. If a
device implements open/close methods, it can also put device into low
power state. This is needed, for example, to disable keyboard and
touchpad on convertibles when they are transitioned into tablet mode
- now that ordinary input devices can be configured for polling mode,
dedicated input polling device implementation has been removed
- GTCO tablet driver has been removed, as it used problematic custom
HID parser, devices are EOL, and there is no interest from the
manufacturer
- a new driver for Dialog DA7280 haptic chips has been introduced
- a new driver for power button on Dell Wyse 3020
- support for eKTF2132 in ektf2127 driver
- support for SC2721 and SC2730 in sc27xx-vibra driver
- enhancements for Atmel touchscreens, AD7846 touchscreens, Elan
touchpads, ADP5589, ST1232 touchscreen, TM2 touchkey drivers
- fixes and cleanups to allow clean builds with W=1
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (86 commits)
Input: da7280 - fix spelling mistake "sequemce" -> "sequence"
Input: cyapa_gen6 - fix out-of-bounds stack access
Input: sc27xx - add support for sc2730 and sc2721
dt-bindings: input: Add compatible string for SC2721 and SC2730
dt-bindings: input: Convert sc27xx-vibra.txt to json-schema
Input: stmpe - add axis inversion and swapping capability
Input: adp5589-keys - do not explicitly control IRQ for wakeup
Input: adp5589-keys - do not unconditionally configure as wakeup source
Input: ipx4xx-beeper - convert comma to semicolon
Input: parkbd - convert comma to semicolon
Input: new da7280 haptic driver
dt-bindings: input: Add document bindings for DA7280
MAINTAINERS: da7280 updates to the Dialog Semiconductor search terms
Input: elantech - fix protocol errors for some trackpoints in SMBus mode
Input: elan_i2c - add new trackpoint report type 0x5F
Input: elants - document some registers and values
Input: atmel_mxt_ts - simplify the return expression of mxt_send_bootloader_cmd()
Input: imx_keypad - add COMPILE_TEST support
Input: applespi - use new structure for SPI transfer delays
Input: synaptics-rmi4 - use new structure for SPI transfer delays
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"The big change this release has been some excellent work from Lukas
Wunner which closes a bunch of holes in the cleanup paths for drivers,
mainly introduced as a result of devm conversions causing bad
interactions with the support SPI has for allocating the bus and
driver data together.
Together with some of the other work done it feels like we've turned
the corner on several long standing pain points with the API.
Summary:
- Many cleanups around probe/remove and error handling from Lukas
Wunner and Uwe Kleine-König, and further fixes around PM from Zhang
Qilong.
- Provide a mask for which bits of the mode can safely be configured
by drivers and use that to fix an issue with the ADS7846 driver.
- Documentation of the expected interactions between SPI and GPIO
level chip select polarity configuration from H. Nikolaus Schaller,
hopefully we're pretty much at the end of sorting out the
interactions there. Thanks to Nikolaus, Sven Van Asbroeck and Linus
Walleij for this.
- DMA support for Allwinner sun6i controllers.
- Support for Canaan K210 Designware implementations and Intel Adler
Lake"
* tag 'spi-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (69 commits)
spi: dt-bindings: clarify CS behavior for spi-cs-high and gpio descriptors
spi: Limit the spi device max speed to controller's max speed
spi: spi-geni-qcom: Use the new method of gpio CS control
platform/chrome: cros_ec_spi: Drop bits_per_word assignment
platform/chrome: cros_ec_spi: Don't overwrite spi::mode
spi: dw: Add support for the Canaan K210 SoC SPI
spi: dw: Add support for 32-bits max xfer size
dt-bindings: spi: dw-apb-ssi: Add Canaan K210 SPI controller
spi: Update DT binding docs to support SiFive FU740 SoC
spi: atmel-quadspi: Fix use-after-free on unbind
spi: npcm-fiu: Disable clock in probe error path
spi: ar934x: Don't leak SPI master in probe error path
spi: mt7621: Don't leak SPI master in probe error path
spi: mt7621: Disable clock in probe error path
media: netup_unidvb: Don't leak SPI master in probe error path
spi: sc18is602: Don't leak SPI master in probe error path
spi: rb4xx: Don't leak SPI master in probe error path
spi: gpio: Don't leak SPI master in probe error path
spi: spi-mtk-nor: Don't leak SPI master in probe error path
spi: mxic: Don't leak SPI master in probe error path
...
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Boyd <swboyd@chromium.org>:
Collected patches from the two series below and associated tags so they
can be merged in one pile through the spi tree. Merry December!
SPI: https://lore.kernel.org/r/20201202214935.1114381-1-swboyd@chromium.org
cros-ec: https://lore.kernel.org/r/20201203011649.1405292-1-swboyd@chromium.org
Cc: Akash Asthana <akashast@codeaurora.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Gwendal Grignou <gwendal@chromium.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Alexandru M Stan <amstan@chromium.org>
Stephen Boyd (3):
platform/chrome: cros_ec_spi: Don't overwrite spi::mode
platform/chrome: cros_ec_spi: Drop bits_per_word assignment
spi: spi-geni-qcom: Use the new method of gpio CS control
drivers/platform/chrome/cros_ec_spi.c | 2 --
drivers/spi/spi-geni-qcom.c | 1 +
2 files changed, 1 insertion(+), 2 deletions(-)
base-commit: b65054597872ce3aefbc6a666385eabdf9e288da
--
https://chromeos.dev
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Do not overwrite spi->mode flags set by spi framework, otherwise the
chip select polarity will get lost.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20201027095724.18654-3-o.rempel@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- a fix for cm109 stomping on its own control URB if it tries to toggle
buzzer immediately after userspace opens input device (found by
syzcaller)
- another fix for Raydium touchscreens that do not like splitting
command transfers
- quirks for i8042, soc_button_array, and goodix drivers to make them
work better with certain hardware.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: goodix - add upside-down quirk for Teclast X98 Pro tablet
Input: cm109 - do not stomp on control URB
Input: i8042 - add Acer laptops to the i8042 reset list
Input: cros_ec_keyb - send 'scancodes' in addition to key events
Input: soc_button_array - add Lenovo Yoga Tablet2 1051L to the dmi_use_low_level_irq list
Input: raydium_ts_i2c - do not split tx transactions
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"A fix for 'RETRIGEN' handling in Atmel touch controllers that was
causing lost interrupts on systems using edge-triggered interrupts, a
quirk for i8042 driver, and a couple more fixes."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: atmel_mxt_ts - fix lost interrupts
Input: xpad - support Ardwiino Controllers
Input: i8042 - add ByteSpeed touchpad to noloop table
Input: i8042 - fix error return code in i8042_setup_aux()
Input: soc_button_array - add missing include
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"A fix for use-after-free in the Sun keyboard driver, a fix to firmware
updates on newer ICs in the Elan touchpad diver, and a couple misc
driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elan_i2c - fix firmware update on newer ICs
Input: resistive-adc-touch - fix kconfig dependency on IIO_BUFFER
Input: sunkbd - avoid use-after-free in teardown paths
Input: i8042 - allow insmod to succeed on devices without an i8042 controller
Input: adxl34x - clean up a data type in adxl34x_probe()
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Pull ARM SoC platform updates from Olof Johansson:
"SoC changes, a substantial part of this is cleanup of some of the
older platforms that used to have a bunch of board files.
In particular:
- Remove non-DT i.MX platforms that haven't seen activity in years,
it's time to remove them.
- A bunch of cleanup and removal of platform data for TI/OMAP
platforms, moving over to genpd for power/reset control (yay!)
- Major cleanup of Samsung S3C24xx and S3C64xx platforms, moving them
closer to multiplatform support (not quite there yet, but getting
close).
There are a few other changes too, smaller fixlets, etc. For new
platform support, the primary ones are:
- New SoC: Hisilicon SD5203, ARM926EJ-S platform.
- Cpufreq support for i.MX7ULP"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (121 commits)
ARM: mstar: Select MStar intc
ARM: stm32: Replace HTTP links with HTTPS ones
ARM: debug: add UART early console support for SD5203
ARM: hisi: add support for SD5203 SoC
ARM: omap3: enable off mode automatically
clk: imx: imx35: Remove mx35_clocks_init()
clk: imx: imx31: Remove mx31_clocks_init()
clk: imx: imx27: Remove mx27_clocks_init()
ARM: imx: Remove unused definitions
ARM: imx35: Retrieve the IIM base address from devicetree
ARM: imx3: Retrieve the AVIC base address from devicetree
ARM: imx3: Retrieve the CCM base address from devicetree
ARM: imx31: Retrieve the IIM base address from devicetree
ARM: imx27: Retrieve the CCM base address from devicetree
ARM: imx27: Retrieve the SYSCTRL base address from devicetree
ARM: s3c64xx: bring back notes from removed debug-macro.S
ARM: s3c24xx: fix Wunused-variable warning on !MMU
ARM: samsung: fix PM debug build with DEBUG_LL but !MMU
MAINTAINERS: mark linux-samsung-soc list non-moderated
ARM: imx: Remove remnant board file support pieces
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https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/soc
Samsung S3C24xx and S3C64xx machine code cleanup for v5.10
Big cleanup for the Samsung S3C24xx and S3C64xx platforms, although it
also touches files shared with S5Pv210 and Exynos. This is mostly Arnd
Bergmann work which Krzysztof Kozlowski took over, rebased and polished.
The goal is to cleanup, merge and finally make the Samsung S3C24xx and
S3C64xx architectures multiplatform. The multiplatform did not happen
yet here - just cleaning up and merging into one arch/arm/mach-s3c
directory. However this is step forward for multiplatform or at least
to keep this code still maintainable.
This pulls also branch with changes for Samsung SoC sound drivers from
broonie/sound because the cleanups there were part of this series and
all further patches depend on them.
* tag 'samsung-soc-s3c-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: (62 commits)
ARM: s3c: Avoid naming clash of S3C24xx and S3C64xx timer setup
ARM: s3c: Cleanup from old plat-samsung include
ARM: s3c: make headers local if possible
ARM: s3c: move into a common directory
ARM: s3c24xx: stop including mach/hardware.h from mach/io.h
cpufreq: s3c24xx: move low-level clk reg access into platform code
cpufreq: s3c2412: use global s3c2412_cpufreq_setrefresh
ARM: s3c: remove cpufreq header dependencies
cpufreq: s3c24xx: split out registers
fbdev: s3c2410fb: remove mach header dependency
ARM: s3c24xx: bast: avoid irq_desc array usage
ARM: s3c24xx: spi: avoid hardcoding fiq number in driver
ARM: s3c24xx: include mach/irqs.h where needed
ARM: s3c24xx: move s3cmci pinctrl handling into board files
ARM: s3c24xx: move iis pinctrl config into boards
ARM: s3c24xx: move spi fiq handler into platform
ARM: s3c: adc: move header to linux/soc/samsung
ARM: s3c24xx: move irqchip driver back into platform
ARM: s3c24xx: move regs-spi.h into spi driver
ARM: s3c64xx: remove mach/hardware.h
...
Link: https://lore.kernel.org/r/20200831154751.7551-1-krzk@kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
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There are multiple drivers using the private adc interface.
It seems unlikely that they would ever get converted to iio,
so make the current state official by making the header file
global.
The s3c2410_ts driver needs a couple of register definitions
as well.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Sebastian Reichel <sre@kernel.org>
Link: https://lore.kernel.org/r/20200806182059.2431-22-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- a new driver for ADC driven joysticks
- a new Zintix touchscreen driver
- enhancements to Intel SoC button array driver
- support for F3A "function" in Synaptics RMI4 driver
- assorted driver fixups
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (29 commits)
Input: Add MAINTAINERS entry for SiS i2c touch input driver
Input: evdev - per-client waitgroups
Input: synaptics - enable InterTouch for ThinkPad T14 Gen 1
Input: synaptics - enable InterTouch for ThinkPad P1/X1E gen 2
Input: synaptics-rmi4 - support bootloader v8 in f34v7
Input: synaptics-rmi4 - add support for F3A
Input: synaptics-rmi4 - rename f30_data to gpio_data
Input: add zinitix touchscreen driver
dt-bindings: input/touchscreen: add bindings for zinitix
Input: joystick - add ADC attached joystick driver.
dt-bindings: input: Add docs for ADC driven joystick
Input: sun4i-ps2 - fix handling of platform_get_irq() error
Input: twl4030_keypad - fix handling of platform_get_irq() error
Input: omap4-keypad - fix handling of platform_get_irq() error
Input: ep93xx_keypad - fix handling of platform_get_irq() error
Input: stmfts - fix a & vs && typo
Input: imx6ul_tsc - unify open/close and PM paths
Input: imx6ul_tsc - clean up some errors in imx6ul_tsc_resume()
Input: elants_i2c - fix typo for an attribute to show calibration count
Input: elants_i2c - report resolution of ABS_MT_TOUCH_MAJOR by FW information.
...
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zinitix_init_touch() returns error code or 0 for success and therefore
return type must be int, not bool.
Fixes: 26822652c85e ("Input: add zinitix touchscreen driver")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/YC8z2bXc3Oy8pABa@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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devm_ioremap_resource() is only guaranteed to be present if
CONFIG_HAS_IOMEM is set.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/YCyauGyqxut69JNz@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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If elo_setup_10() fails then this should return an error code instead
of success.
Fixes: fae3006e4b42 ("Input: elo - add support for non-pressure-sensitive touchscreens")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YBKFd5CvDu+jVmfW@mwanda
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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If v4l2_ctrl_handler_setup() fails then probe() should return an error
code instead of returning success.
Fixes: cee1e3e2ef39 ("media: add video control handlers using V4L2 control framework")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YBKFkbATXa5fA3xj@mwanda
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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If an enum value were to get added without updating this switch
statement, the unreachable() annotation would trigger undefined
behavior, causing execution to fall through the end of the function,
into the next one.
Make the error handling more robust for an unexpected enum value, by
doing BUG() instead of unreachable().
Fixes the following objtool warning:
drivers/input/touchscreen/elants_i2c.o: warning: objtool: elants_i2c_initialize() falls through to next function elants_i2c_resume()
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Reviewed-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Link: https://lore.kernel.org/r/59e2e82d1e40df11ab38874c03556a31c6b2f484.1612974132.git.jpoimboe@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Eliminate the following coccicheck warning:
./drivers/input/touchscreen/zinitix.c:164:31-32: Unneeded semicolon
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://lore.kernel.org/r/1612319443-115831-1-git-send-email-yang.lee@linux.alibaba.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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If execution jumps to the err_kfree label, error_bl is evaluated
before it is initialized. Fix this by initializing it to zero.
Fixes: 2539da6677b6 ("Input: iqs5xx - preserve bootloader errors")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/1611592500-32209-1-git-send-email-jeff@labundy.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Avoid placing the device in suspend mode (from which it cannot
generate interrupts) if it is defined as a wake-up source. The
device is still permitted to enter a low-power sensing mode on
its own.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/1611002626-5889-11-git-send-email-jeff@labundy.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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After the device is initialized, it runs ATI (calibration) during
which it cannot readily respond to I2C communication. To keep the
open and close callbacks from writing to the device too soon, the
driver waits 100 ms before returning from probe.
The vendor reports that ATI may actually take up to 250 ms to run
(including margin), so increase the delay accordingly. Update the
comments to clarify the reason for the delay as well.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/1611002626-5889-9-git-send-email-jeff@labundy.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Instead of relying on firmware to enable important register fields
and performing read-modify-write operations to additionally enable
the fields the driver cares about, it's much simpler just to write
all of the pertinent fields explicitly.
This avoids an unnecessary register read operation at start-up and
makes way for the iqs5xx_read_byte() helper to be dropped.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/1611002626-5889-8-git-send-email-jeff@labundy.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The present implementation manipulates axis swap and inversion fields
in the device to more or less duplicate what touchscreen_report_pos()
does. The resulting logic is convoluted and difficult to follow.
Instead report the maximum X and Y coordinates in earnest as they are
read from the device, then let touchscreen_parse_properties() fix the
axes up as necessary. Finally, use touchscreen_report_pos() to report
the transformed coordinates.
Last but not least, the maximum X and Y coordinates are not functions
of the number of rows/columns that comprise the touch surface. Either
coordinate is simply limited to 1 below what is reported for absolute
X or Y coordinates when no fingers are present (0xFFFF).
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/1611002626-5889-7-git-send-email-jeff@labundy.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The device may be inadvertently reset during runtime in the event
of ESD strike, etc. To protect against this case, acknowledge the
SHOW_RESET interrupt and re-initialize the device.
To facilitate this change, expand the range of registers that are
read in the interrupt handler to include the system status fields.
Also, update the unrelated (but nearby) SUSPEND register field to
use the BIT() macro. The remaining register fields are cleaned up
in another patch.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/1611002626-5889-6-git-send-email-jeff@labundy.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The bootloader NAK's all I2C communication after the first 64-byte
bulk write if the bus frequency is equal to 400 kHz. This prevents
the platform from pushing updated firmware to the device.
The vendor's USB bootloader programming dongle appears to insert a
delay between the "open" command and the first 64-byte bulk write.
Adding a similar delay to the driver seems to eliminate the issue.
Furthermore, the dongle does not access the bootloader immediately
after powering up the device. Follow suit by adding a delay before
the "open" command to avoid wasted retries at 400 kHz.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/1611002626-5889-4-git-send-email-jeff@labundy.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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After user space writes the fw_file attribute to push new firmware
to the device, the driver calls iqs5xx_dev_init() to re-initialize
the device with the updated firmware or recover the device in case
the update failed.
In the case of the latter, however, iqs5xx_fw_file_write() returns
zero (success) so long as iqs5xx_dev_init() does not fail, and any
error encountered during the update process is lost. Solve this by
saving the error before calling iqs5xx_dev_init().
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/1611002626-5889-3-git-send-email-jeff@labundy.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Copyrights are generally followed by the name of a person or a
company (i.e. the copyright holder) but that was not done here.
Fix this by squashing the 'copyright' and 'author' lines.
Also, trim some leading whitespace ahead of the parameters for
the fw_file_store() function and re-align them for readability.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/1611002626-5889-2-git-send-email-jeff@labundy.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add ELAN KTF3624 touchscreen support to the elants_i2c driver.
The eKTF3624 TS is found on a series of ASUS Transformer tablet devices,
Nexus 7 tablet and etc. The firmware interface of eKTF3624 is nearly
identical to eKTH3500, which is already supported by the driver.
The minor differences of the firmware interface are now handled by
the driver. The eKTF3624 support was tested on ASUS Transformer TF700T,
TF300T and Nexus 7 tablets.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20210124195414.27333-1-digetx@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Convert multiple full duplex transfers in to a single transfer to reduce
CPU load.
Current driver version support following filtering modes:
- ads7846_no_filter() - not filtered
- ads7846_debounce_filter() - driver specific debounce filter
- pdata->filter - platform specific debounce filter (do any platform
provides such filter?)
Without filter this HW is not really usable, since the physic of
resistive touchscreen can provide some bounce effects. With driver internal
filter, we have constant amount of retries + debounce retries if some anomaly
was detected.
High amount of tiny SPI transfers is the primer reason of high CPU load
and interrupt frequency.
This patch create one SPI transfer with all fields and not optional retires. If
bounce anomaly was detected, we will make more transfer if needed.
Without this patch, we will get about 10% CPU load on iMX6S on pen-down event.
For example by holding stylus on the screen.
With this patch, depending in the amount of retries, the CPU load will
be 1% with "ti,debounce-rep = <3>".
One buffer transfer allows us to use PIO FIFO or DMA engine, depending
on the platform.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20201110085041.16303-3-o.rempel@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Fixes the following W=1 kernel build warning(s):
drivers/input/touchscreen/stmpe-ts.c:82: warning: Function parameter or member 'prop' not described in 'stmpe_touch'
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210114152323.2382283-6-lee.jones@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Fixes the following W=1 kernel build warning(s):
drivers/input/touchscreen/surface3_spi.c: In function ‘surface3_spi_process_touch’:
drivers/input/touchscreen/surface3_spi.c:97:6: warning: variable ‘timestamp’ set but not used [-Wunused-but-set-variable]
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20210114152323.2382283-5-lee.jones@linaro.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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