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2020-08-06Merge tag 'staging-5.9-rc1' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging/IIO driver updates from Greg KH: "Here is the large set of Staging and IIO driver patches for 5.9-rc1. Lots of churn here, but overall the size increase in lines added is small, while adding a load of new IIO drivers. Major things in here: - lots and lots of IIO new drivers and frameworks added - IIO driver fixes and updates - lots of tiny coding style cleanups for staging drivers - vc04_services major reworks and cleanups We had 3 set of drivers move out of staging in this round as well: - wilc1000 wireless driver moved out of staging - speakup moved out of staging - most USB driver moved out of staging Full details are in the shortlog. All of these have been in linux-next with no reported issues. The last few changes here were to resolve reported linux-next issues, and they seem to have resolved the problems" * tag 'staging-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (428 commits) staging: most: fix up movement of USB driver staging: rts5208: clear alignment style issues staging: r8188eu: replace rtw_netdev_priv define with inline function staging: netlogic: clear alignment style issues staging: android: ashmem: Fix lockdep warning for write operation drivers: most: add USB adapter driver staging: most: Use %pM format specifier for MAC addresses staging: ks7010: Use %pM format specifier for MAC addresses staging: qlge: qlge_dbg: removed comment repition staging: wfx: Use flex_array_size() helper in memcpy() staging: rtl8723bs: Align macro definitions staging: rtl8723bs: Clean up function declations staging: rtl8723bs: Fix coding style errors drivers: staging: audio: Fix the missing header file for helper file staging: greybus: audio: Enable GB codec, audio module compilation. staging: greybus: audio: Add helper APIs for dynamic audio modules staging: greybus: audio: Resolve compilation error in topology parser staging: greybus: audio: Resolve compilation errors for GB codec module staging: greybus: audio: Maintain jack list within GB Audio module staging: greybus: audio: Update snd_jack FW usage as per new APIs ...
2020-08-04Merge tag 'uninit-macro-v5.9-rc1' of ↵Linus Torvalds2-4/+2
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull uninitialized_var() macro removal from Kees Cook: "This is long overdue, and has hidden too many bugs over the years. The series has several "by hand" fixes, and then a trivial treewide replacement. - Clean up non-trivial uses of uninitialized_var() - Update documentation and checkpatch for uninitialized_var() removal - Treewide removal of uninitialized_var()" * tag 'uninit-macro-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: compiler: Remove uninitialized_var() macro treewide: Remove uninitialized_var() usage checkpatch: Remove awareness of uninitialized_var() macro mm/debug_vm_pgtable: Remove uninitialized_var() usage f2fs: Eliminate usage of uninitialized_var() macro media: sur40: Remove uninitialized_var() usage KVM: PPC: Book3S PR: Remove uninitialized_var() usage clk: spear: Remove uninitialized_var() usage clk: st: Remove uninitialized_var() usage spi: davinci: Remove uninitialized_var() usage ide: Remove uninitialized_var() usage rtlwifi: rtl8192cu: Remove uninitialized_var() usage b43: Remove uninitialized_var() usage drbd: Remove uninitialized_var() usage x86/mm/numa: Remove uninitialized_var() usage docs: deprecated.rst: Add uninitialized_var()
2020-08-04Merge tag 'tasklets-v5.9-rc1' of ↵Linus Torvalds2-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull tasklets API update from Kees Cook: "These are the infrastructure updates needed to support converting the tasklet API to something more modern (and hopefully for removal further down the road). There is a 300-patch series waiting in the wings to get set out to subsystem maintainers, but these changes need to be present in the kernel first. Since this has some treewide changes, I carried this series for -next instead of paining Thomas with it in -tip, but it's got his Ack. This is similar to the timer_struct modernization from a while back, but not nearly as messy (I hope). :) - Prepare for tasklet API modernization (Romain Perier, Allen Pais, Kees Cook)" * tag 'tasklets-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: tasklet: Introduce new initialization API treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD() usb: gadget: udc: Avoid tasklet passing a global
2020-08-03Merge tag 'rm-unicore32' of ↵Linus Torvalds2-72/+0
git://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux Pull unicore32 removal from Mike Rapoport: "Remove unicore32 support. The unicore32 port do not seem maintained for a long time now, there is no upstream toolchain that can create unicore32 binaries and all the links to prebuilt toolchains for unicore32 are dead. Even compilers that were available are not supported by the kernel anymore. Guenter Roeck says: "I have stopped building unicore32 images since v4.19 since there is no available compiler that is still supported by the kernel. I am surprised that support for it has not been removed from the kernel" However, it's worth pointing out two things: - Guan Xuetao is still listed as maintainer and asked for the port to be kept around the last time Arnd suggested removing it two years ago. He promised that there would be compiler sources (presumably llvm), but has not made those available since. - https://github.com/gxt has patches to linux-4.9 and qemu-2.7, both released in 2016, with patches dated early 2019. These patches mainly restore a syscall ABI that was never part of mainline Linux but apparently used in production. qemu-2.8 removed support for that ABI and newer kernels (4.19+) can no longer be built with the old toolchain, so apparently there will not be any future updates to that git tree" * tag 'rm-unicore32' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux: MAINTAINERS: remove "PKUNITY SOC DRIVERS" entry rtc: remove fb-puv3 driver video: fbdev: remove fb-puv3 driver pwm: remove pwm-puv3 driver input: i8042: remove support for 8042-unicore32io i2c/buses: remove i2c-puv3 driver cpufreq: remove unicore32 driver arch: remove unicore32 port
2020-07-30treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()Kees Cook2-2/+2
This converts all the existing DECLARE_TASKLET() (and ...DISABLED) macros with DECLARE_TASKLET_OLD() in preparation for refactoring the tasklet callback type. All existing DECLARE_TASKLET() users had a "0" data argument, it has been removed here as well. Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-20Merge 5.8-rc6 into staging-nextGreg Kroah-Hartman4-5/+13
We need the staging fixes in here, and it resolves a merge issue with an iio driver. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-17Merge tag 'iio-for-5.9a-take2' of ↵Greg Kroah-Hartman1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: First set of new device support, cleanups and features for IIO in the 5.9 cycle Some new devices, but particularly good this time is the core rework coming from Alexandru. Some of this has been in Analog's tree a long time, but other parts are motivated by closing down common mistakes in new drivers. Changes since first try at this pull request: * Add missed patch to actually remove iio_priv_to_dev and as a result also drop a few ingenic patches that need to be updated to take this into account. * Fix an ordering issue int he pollfunc attach in the core rework. New device support * qcom pmic7 adc - New driver using common qcom-vadc library. Some associated cleanups and refactors. * invensense icm42600 - New driver supporting icm42600, icm42602, icm42605 and icm42622 via i2c or spi. These are all 6 axis IMUs with gyro and accelerometers. Driver supports buffered modes using the hardware fifo and interpolation for accurate timestamps. * sensirion scd30 - New driver for this carbon dioxide sensor including i2c and serial interfaces + bindings. Features * ak8975 - Add reset gpio support. * bma400 - Support SPI. * bmc150 - Document and add support for bmc156b and bmm150b, tidy up _magn endings. * bmi160 - Regulator and mount matrix support. * mxc4005 - Add ID for mxc6655 * rockchip-saradc - Triggered buffer support. DT bindings * qcom spmi-vadc converted to yaml + pmic7 bindings * ak8975 tidy up and convert to yaml + add reset-gpio binding * ingenic-adc -convert to yaml. Core rework all carried through by Alexandru Ardelean. * Assign parent device in the core rather than every driver. A few devices need to provide specific non standard parents, so there is support for overriding. * Start to take parts of struct iio_dev opaque to the drivers. This will be a long term job, but should reduce the number of drivers we get that use parts that are currently only 'internal' by documentation. * Move attach and detach of pollfunc to the core. Every triggered buffer using driver had to do the same thing, so lets do it in the core. The hard part here was getting all the drivers into canonical form so there would be no functional changes in this final patch. That's taken quite a lot of work over last couple of cycles! Cleanups and minor fixes. * docs - Improve IIO_CONCENTRATION channel type description in ABI docs. - Drop doubled word cases. - Http to Https conversion. * core - Make iio_device_get_drvdata take a const struct iio_dev * avoiding some nasty casts. * ADCs - Drop lots of users of of_match_ptr macro, includes of mod_devicetable.h and CONFIG_OF protections. These prevent use of ACPI PRP0001 with these drivers and get coppied into lots of new drivers. * ad5380 - Constify iio_chan_spec_ext_info * ad5592r - Constify iio_chan_spec_ext_info - Avoid use of iio_priv_to_dev (precursor to taking parts of iio_dev opaque) * ad8366 - Make gpio optional as doesn't matter if its there or not. * adis16480 - Use irq types instead of the flags. * atlas-ezo-sensor - Minimize scope of ret variable. * at91-adc - Add COMPILE_TEST dependency to driver to improve build coverage. - Avoid use of iio_priv_to_dev (precursor to taking parts of iio_dev opaque) * at91-sama5d2 - Avoid use of iio_priv_to_dev (precursor to taking parts of iio_dev opaque) - Drop Ludovic as a co-maintaienr. * cros_ec - Reapply the range after resume. - Add a read only frequency entry for legacy version. - Typo fixes * hts221 - Avoid use of iio_priv_to_dev (precursor to taking parts of iio_dev opaque) * inv_mpu - Drop double check on ACPI companion device. * iqs621 - Avoid use of iio_priv_to_dev (precursor to taking parts of iio_dev opaque) * iqs624 - Avoid use of iio_priv_to_dev (precursor to taking parts of iio_dev opaque) * max11100 - Constify iio_chan_spec * mmc35240 - Constify reg_default * rockchip-saradc - Move to managed allocators for everything in probe. - Use more distinctive prefix for channel macros. * stk3310 - Constify regmap_config. * stm32-adc - Avoid use of iio_priv_to_dev (precursor to taking parts of iio_dev opaque) * stm32-dfsdm-adc - Avoid use of iio_priv_to_dev (precursor to taking parts of iio_dev opaque) * ti-am335x - Use managed allocations where straight forward in probe function. * tsl2563 - Avoid use of iio_priv_to_dev (precursor to taking parts of iio_dev opaque) * tag 'iio-for-5.9a-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (107 commits) iio: buffer: fix attach/detach pollfunc order iio: core: remove iio_priv_to_dev() helper Replace HTTP links with HTTPS ones: drivers/iio Replace HTTP links with HTTPS ones: Documentation/devicetree/bindings/iio dt-bindings: iio/adc: Convert ingenic-adc docs to YAML. iio: cros_ec_accel_legacy: Add Read Only frequency entries MAINTAINERS: adc: at91-sama5d2_adc: remove myself as co-maintainer iio: adc: ti_am335x_adc: alloc kfifo & IRQ via devm_ functions iio: adc: ti_am335x_adc: alloc channels via devm_kcalloc() iio:adc:ingenic: drop of_match_ptr protection and include mod_devicetable.h iio:adc:ti-tlc4541: Drop CONFIG_OF and of_match_ptr protections. iio:adc:ti-adc161s626: Drop of_match_ptr protection. iio:adc:ti-adc084s021: drop of_match_ptr protection iio:adc:ti-adc0832: drop CONFIG_OF and of_match_ptr protections iio:adc:ti-adc081c: Drop of_match_ptr and change to mod_devicetable.h iio:adc:sd_adc_modulator: Drop of_match_ptr and tweak includes iio:adc:mcp3422: remove CONFIG_OF and of_match_ptr protections iio:adc:mcp320x: Drop CONFIG_OF and of_match_ptr protections iio:adc:max1118: Drop CONFIG_OF / of_match_ptr protections iio:adc:max11100: Drop of_match_ptr protection / add mod_devicetable.h include ...
2020-07-16treewide: Remove uninitialized_var() usageKees Cook1-1/+1
Using uninitialized_var() is dangerous as it papers over real bugs[1] (or can in the future), and suppresses unrelated compiler warnings (e.g. "unused variable"). If the compiler thinks it is uninitialized, either simply initialize the variable or make compiler changes. In preparation for removing[2] the[3] macro[4], remove all remaining needless uses with the following script: git grep '\buninitialized_var\b' | cut -d: -f1 | sort -u | \ xargs perl -pi -e \ 's/\buninitialized_var\(([^\)]+)\)/\1/g; s:\s*/\* (GCC be quiet|to make compiler happy) \*/$::g;' drivers/video/fbdev/riva/riva_hw.c was manually tweaked to avoid pathological white-space. No outstanding warnings were found building allmodconfig with GCC 9.3.0 for x86_64, i386, arm64, arm, powerpc, powerpc64le, s390x, mips, sparc64, alpha, and m68k. [1] https://lore.kernel.org/lkml/20200603174714.192027-1-glider@google.com/ [2] https://lore.kernel.org/lkml/CA+55aFw+Vbj0i=1TGqCR5vQkCzWJ0QxK6CernOU6eedsudAixw@mail.gmail.com/ [3] https://lore.kernel.org/lkml/CA+55aFwgbgqhbp1fkxvRKEpzyR5J8n1vKT1VZdz9knmPuXhOeg@mail.gmail.com/ [4] https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yVJu65TpLgN_ybYNv0VEOKA@mail.gmail.com/ Reviewed-by: Leon Romanovsky <leonro@mellanox.com> # drivers/infiniband and mlx4/mlx5 Acked-by: Jason Gunthorpe <jgg@mellanox.com> # IB Acked-by: Kalle Valo <kvalo@codeaurora.org> # wireless drivers Reviewed-by: Chao Yu <yuchao0@huawei.com> # erofs Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-16media: sur40: Remove uninitialized_var() usageKees Cook1-3/+1
Using uninitialized_var() is dangerous as it papers over real bugs[1] (or can in the future), and suppresses unrelated compiler warnings (e.g. "unused variable"). If the compiler thinks it is uninitialized, either simply initialize the variable or make compiler changes. As a precursor to removing[2] this[3] macro[4], just remove this variable since it was actually unused: drivers/input/touchscreen/sur40.c:459:6: warning: variable 'packet_id' set but not used [-Wunused-but-set-variable] 459 | u32 packet_id; | ^~~~~~~~~ However, in keeping with the documentation desires outlined in commit 335abaea7a27 ("Input: sur40 - silence unnecessary noisy debug output"), comment out the assignment instead of removing it. [1] https://lore.kernel.org/lkml/20200603174714.192027-1-glider@google.com/ [2] https://lore.kernel.org/lkml/CA+55aFw+Vbj0i=1TGqCR5vQkCzWJ0QxK6CernOU6eedsudAixw@mail.gmail.com/ [3] https://lore.kernel.org/lkml/CA+55aFwgbgqhbp1fkxvRKEpzyR5J8n1vKT1VZdz9knmPuXhOeg@mail.gmail.com/ [4] https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yVJu65TpLgN_ybYNv0VEOKA@mail.gmail.com/ Fixes: 335abaea7a27 ("Input: sur40 - silence unnecessary noisy debug output") Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-13Merge branch 'for-linus' of ↵Linus Torvalds4-5/+13
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: "A few quirks for the Elan touchpad driver, another Thinkpad is being switched over from PS/2 to native RMI4 interface, and we gave a brand new SW_MACHINE_COVER switch definition" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: elan_i2c - add more hardware ID for Lenovo laptops Input: i8042 - add Lenovo XiaoXin Air 12 to i8042 nomux list Revert "Input: elants_i2c - report resolution information for touch major" Input: elan_i2c - only increment wakeup count on touch Input: synaptics - enable InterTouch for ThinkPad X1E 1st gen ARM: dts: n900: remove mmc1 card detect gpio Input: add `SW_MACHINE_COVER`
2020-07-07Input: i8042 - add Lenovo XiaoXin Air 12 to i8042 nomux listDavid Pedersen1-0/+7
This fixes two finger trackpad scroll on the Lenovo XiaoXin Air 12. Without nomux, the trackpad behaves as if only one finger is present and moves the cursor when trying to scroll. Signed-off-by: David Pedersen <limero1337@gmail.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200625133754.291325-1-limero1337@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-07-06Revert "Input: elants_i2c - report resolution information for touch major"Dmitry Torokhov1-1/+0
This reverts commit 061706716384f1633d3d5090b22a99f33f1fcf2f - it turns out that the resolution of 1 unit per mm was not correct for a number of touch screens, causing touch sizes to be reported as way too large. See https://crbug.com/1085648 Reported-by: Harry Cutts <hcutts@chromium.org> Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-07-06Input: elan_i2c - only increment wakeup count on touchDerek Basehore1-4/+5
This moves the wakeup increment for elan devices to the touch report. This prevents the drivers from incorrectly reporting a wakeup when the resume callback resets then device, which causes an interrupt to occur. Signed-off-by: Derek Basehore <dbasehore@chromium.org> Link: https://lore.kernel.org/r/20200706235046.1984283-1-dbasehore@chromium.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-07-06Input: synaptics - enable InterTouch for ThinkPad X1E 1st genIlya Katsnelson1-0/+1
Tested on my own laptop, touchpad feels slightly more responsive with this on, though it might just be placebo. Signed-off-by: Ilya Katsnelson <me@0upti.me> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20200703143457.132373-1-me@0upti.me Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-07-01input: i8042: remove support for 8042-unicore32ioMike Rapoport2-72/+0
The unicore32 port is removed from the kernel. There is no point to keep stale definitions to support this architecture. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Guenter Roeck <linux@roeck-us.net>
2020-06-17maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofaultChristoph Hellwig1-1/+1
Better describe what these functions do. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-14iio: remove explicit IIO device parent assignmentAlexandru Ardelean1-1/+0
This patch applies the semantic patch: @@ expression I, P, SP; @@ I = devm_iio_device_alloc(P, SP); ... - I->dev.parent = P; It updates 302 files and does 307 deletions. This semantic patch also removes some comments like '/* Establish that the iio_dev is a child of the i2c device */' But this is is only done in case where the block is left empty. The patch does not seem to cover all cases. It looks like in some cases a different variable is used in some cases to assign the parent, but it points to the same reference. In other cases, the block covered by ... may be just too big to be covered by the semantic patch. However, this looks pretty good as well, as it does cover a big bulk of the drivers that should remove the parent assignment. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-06-14treewide: replace '---help---' in Kconfig files with 'help'Masahiro Yamada3-6/+6
Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over '---help---'"), the number of '---help---' has been gradually decreasing, but there are still more than 2400 instances. This commit finishes the conversion. While I touched the lines, I also fixed the indentation. There are a variety of indentation styles found. a) 4 spaces + '---help---' b) 7 spaces + '---help---' c) 8 spaces + '---help---' d) 1 space + 1 tab + '---help---' e) 1 tab + '---help---' (correct indentation) f) 1 tab + 1 space + '---help---' g) 1 tab + 2 spaces + '---help---' In order to convert all of them to 1 tab + 'help', I ran the following commend: $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/' Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-06-10Merge branch 'for-linus' of ↵Linus Torvalds27-773/+2659
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: - a new driver for the Azoteq IQS269A capacitive touch controller - a new driver for the Cypress CY8CTMA140 touchscreen - updates to Elan and ft5x06 touchscreen drivers - assorted driver fixes - msm-vibrator has been removed as we have a more generic solution * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (28 commits) Input: adi - work around module name confict Input: iqs269a - add missing I2C dependency Input: elants - refactor elants_i2c_execute_command() Input: elants - override touchscreen info with DT properties Input: elants - remove unused axes Input: add support for Azoteq IQS269A dt-bindings: input: Add bindings for Azoteq IQS269A Input: imx_sc_key - use devm_add_action_or_reset() to handle all cleanups Input: remove msm-vibrator driver dt-bindings: Input: remove msm-vibrator Input: elants_i2c - provide an attribute to show calibration count Input: introduce input_mt_report_slot_inactive() dt-bindings: input: touchscreen: elants_i2c: convert to YAML Input: add driver for the Cypress CY8CTMA140 touchscreen dt-bindings: touchscreen: Add CY8CTMA140 bindings Input: edt-ft5x06 - prefer asynchronous probe Input: edt-ft5x06 - improve power management operations Input: edt-ft5x06 - move parameter restore into helper Input: edt-ft5x06 - fix get_default register write access Input: atkbd - receive and use physcode->keycode mapping from FW ...
2020-06-09Input: adi - work around module name confictArnd Bergmann1-0/+1
Making module name conflicts a fatal error breaks sparc64 allmodconfig: Error log: error: the following would cause module name conflict: drivers/char/adi.ko drivers/input/joystick/adi.ko Renaming one of the modules would solve the problem, but then cause other problems because neither of them is automatically loaded and changing the name is likely to break any setup that relies on manually loading it by name. As there is probably no sparc64 system with this kind of ancient joystick attached, work around it by adding a Kconfig dependency that forbids them from both being modules. It is still possible to build the joystick driver if the sparc64 adi driver is built-in. Reported-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20200609100643.1245061-1-arnd@arndb.de Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-06-06Merge branch 'next' into for-linusDmitry Torokhov32-792/+2702
Prepare input updates for 5.8 merge window.
2020-06-05Merge tag 'powerpc-5.8-1' of ↵Linus Torvalds2-59/+0
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Support for userspace to send requests directly to the on-chip GZIP accelerator on Power9. - Rework of our lockless page table walking (__find_linux_pte()) to make it safe against parallel page table manipulations without relying on an IPI for serialisation. - A series of fixes & enhancements to make our machine check handling more robust. - Lots of plumbing to add support for "prefixed" (64-bit) instructions on Power10. - Support for using huge pages for the linear mapping on 8xx (32-bit). - Remove obsolete Xilinx PPC405/PPC440 support, and an associated sound driver. - Removal of some obsolete 40x platforms and associated cruft. - Initial support for booting on Power10. - Lots of other small features, cleanups & fixes. Thanks to: Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan, Andrey Abramov, Aneesh Kumar K.V, Balamuruhan S, Bharata B Rao, Bulent Abali, Cédric Le Goater, Chen Zhou, Christian Zigotzky, Christophe JAILLET, Christophe Leroy, Dmitry Torokhov, Emmanuel Nicolet, Erhard F., Gautham R. Shenoy, Geoff Levand, George Spelvin, Greg Kurz, Gustavo A. R. Silva, Gustavo Walbon, Haren Myneni, Hari Bathini, Joel Stanley, Jordan Niethe, Kajol Jain, Kees Cook, Leonardo Bras, Madhavan Srinivasan., Mahesh Salgaonkar, Markus Elfring, Michael Neuling, Michal Simek, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran, Paul Mackerras, Pingfan Liu, Qian Cai, Ram Pai, Raphael Moreira Zinsly, Ravi Bangoria, Sam Bobroff, Sandipan Das, Segher Boessenkool, Stephen Rothwell, Sukadev Bhattiprolu, Tyrel Datwyler, Wolfram Sang, Xiongfeng Wang. * tag 'powerpc-5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (299 commits) powerpc/pseries: Make vio and ibmebus initcalls pseries specific cxl: Remove dead Kconfig options powerpc: Add POWER10 architected mode powerpc/dt_cpu_ftrs: Add MMA feature powerpc/dt_cpu_ftrs: Enable Prefixed Instructions powerpc/dt_cpu_ftrs: Advertise support for ISA v3.1 if selected powerpc: Add support for ISA v3.1 powerpc: Add new HWCAP bits powerpc/64s: Don't set FSCR bits in INIT_THREAD powerpc/64s: Save FSCR to init_task.thread.fscr after feature init powerpc/64s: Don't let DT CPU features set FSCR_DSCR powerpc/64s: Don't init FSCR_DSCR in __init_FSCR() powerpc/32s: Fix another build failure with CONFIG_PPC_KUAP_DEBUG powerpc/module_64: Use special stub for _mcount() with -mprofile-kernel powerpc/module_64: Simplify check for -mprofile-kernel ftrace relocations powerpc/module_64: Consolidate ftrace code powerpc/32: Disable KASAN with pages bigger than 16k powerpc/uaccess: Don't set KUEP by default on book3s/32 powerpc/uaccess: Don't set KUAP by default on book3s/32 powerpc/8xx: Reduce time spent in allow_user_access() and friends ...
2020-05-28Merge branch 'for-linus' of ↵Linus Torvalds12-71/+87
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: "Just a few random driver fixups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: synaptics - add a second working PNP_ID for Lenovo T470s Input: applespi - replace zero-length array with flexible-array Input: axp20x-pek - always register interrupt handlers Input: lm8333 - update contact email Input: synaptics-rmi4 - fix error return code in rmi_driver_probe() Input: synaptics-rmi4 - really fix attn_data use-after-free Input: i8042 - add ThinkPad S230u to i8042 reset list Revert "Input: i8042 - add ThinkPad S230u to i8042 nomux list" Input: dlink-dir685-touchkeys - fix a typo in driver name Input: xpad - add custom init packet for Xbox One S controllers Input: evdev - call input_flush_device() on release(), not flush() Input: i8042 - add ThinkPad S230u to i8042 nomux list Input: usbtouchscreen - add support for BonXeon TP Input: cros_ec_keyb - use cros_ec_cmd_xfer_status helper Input: mms114 - fix handling of mms345l Input: elants_i2c - support palm detection
2020-05-28input: i8042 - Remove special PowerPC handlingNathan Chancellor2-59/+0
This causes a build error with CONFIG_WALNUT because kb_cs and kb_data were removed in commit 917f0af9e5a9 ("powerpc: Remove arch/ppc and include/asm-ppc"). ld.lld: error: undefined symbol: kb_cs > referenced by i8042-ppcio.h:28 (drivers/input/serio/i8042-ppcio.h:28) > input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a > referenced by i8042-ppcio.h:28 (drivers/input/serio/i8042-ppcio.h:28) > input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a > referenced by i8042-ppcio.h:28 (drivers/input/serio/i8042-ppcio.h:28) > input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a ld.lld: error: undefined symbol: kb_data > referenced by i8042.c:309 (drivers/input/serio/i8042.c:309) > input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a > referenced by i8042-ppcio.h:33 (drivers/input/serio/i8042-ppcio.h:33) > input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a > referenced by i8042.c:319 (drivers/input/serio/i8042.c:319) > input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a > referenced 15 more times Presumably since nobody has noticed this for the last 12 years, there is not anyone actually trying to use this driver so we can just remove this special walnut code and use the generic header so it builds for all configurations. Fixes: 917f0af9e5a9 ("powerpc: Remove arch/ppc and include/asm-ppc") Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Link: https://lore.kernel.org/r/20200518181043.3363953-1-natechancellor@gmail.com
2020-05-26Input: synaptics - add a second working PNP_ID for Lenovo T470sDennis Kadioglu1-0/+1
The Lenovo Thinkpad T470s I own has a different touchpad with "LEN007a" instead of the already included PNP ID "LEN006c". However, my touchpad seems to work well without any problems using RMI. So this patch adds the other PNP ID. Signed-off-by: Dennis Kadioglu <denk@eclipso.email> Link: https://lore.kernel.org/r/ff770543cd53ae818363c0fe86477965@mail.eclipso.de Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-18Input: iqs269a - add missing I2C dependencyJeff LaBundy1-0/+1
If CONFIG_INPUT_IQS269A is selected yet CONFIG_I2C is not, the build fails. To solve this problem, add I2C as a dependency. Signed-off-by: Jeff LaBundy <jeff@labundy.com> Reported-by: kbuild test robot <lkp@intel.com> Fixes: 04e49867fad1 ("Input: add support for Azoteq IQS269A") Link: https://lore.kernel.org/r/1589809466-22748-1-git-send-email-jeff@labundy.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-17Input: elants - refactor elants_i2c_execute_command()Michał Mirosław1-101/+99
Apply some DRY-ing to elants_i2c_execute_command() callers. This pulls polling and error printk()s into a single function. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Link: https://lore.kernel.org/r/6c576f688b385235c65b461410a917080d27e825.1587923061.git.mirq-linux@rere.qmqm.pl Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-17Input: elants - override touchscreen info with DT propertiesMichał Mirosław1-2/+5
Allow overriding of information from hardware and support additional common DT properties like axis inversion. This is required for eg. Nexus 7 and TF300T where the programmed values in firmware differ from reality. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> [moved "prop" before DMA buffer] Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Link: https://lore.kernel.org/r/49ea996878264f7c8bde25204e4ddf4b1e85ae71.1587923061.git.mirq-linux@rere.qmqm.pl Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-17Input: elants - remove unused axesMichał Mirosław1-18/+8
Driver only ever reports MT events and input_mt_init_slots() sets up emulated axes already. Clear the capabilities not generated directly and move MT axes setup, so they are visible by input_mt_init_slots(). Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Tested-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/d5eee8cd305adb144a11264d70da94f7b6570366.1587923061.git.mirq-linux@rere.qmqm.pl Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-17Merge branch 'for-linus' into nextDmitry Torokhov11-71/+86
Merge for-linus branch to sync Elan touchscreen driver code.
2020-05-17Input: add support for Azoteq IQS269AJeff LaBundy3-0/+1844
This patch adds support for the Azoteq IQS269A capacitive touch controller. Signed-off-by: Jeff LaBundy <jeff@labundy.com> Link: https://lore.kernel.org/r/1588352982-5117-2-git-send-email-jeff@labundy.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-13Input: imx_sc_key - use devm_add_action_or_reset() to handle all cleanupsAnson Huang1-18/+15
Use devm_add_action_or_reset() to handle all cleanups of failure in .probe and .remove, then .remove callback can be dropped. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Link: https://lore.kernel.org/r/1584082751-17047-1-git-send-email-Anson.Huang@nxp.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-13Input: remove msm-vibrator driverBrian Masney3-292/+0
The address referenced by this driver is within the Qualcomm Clock namespace so let's drop the msm-vibrator bindings so that a more generic solution can be used instead. No one is currently using driver so this won't affect any users. Signed-off-by: Brian Masney <masneyb@onstation.org> Link: https://lore.kernel.org/r/20200513013140.69935-3-masneyb@onstation.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-12Input: elants_i2c - provide an attribute to show calibration countJohnny Chuang1-1/+27
There is an non-touch case by non-calibration after update firmware. Elan could know calibrate or not by calibration count. The value of '0xffff' means we didn't calibrate after update firmware. If calibrate success, it will plus one and change to '0x0000'. Signed-off-by: Johnny Chuang <johnny.chuang@emc.com.tw> Link: https://lore.kernel.org/r/1588754932-5902-1-git-send-email-johnny.chuang.emc@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-12Input: introduce input_mt_report_slot_inactive()Jiada Wang9-15/+13
input_mt_report_slot_state() ignores "tool" argument when the slot is closed, which has caused a bit of confusion. Let's introduce input_mt_report_slot_inactive() to report inactive slot state. Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Jiada Wang <jiada_wang@mentor.com> Link: https://lore.kernel.org/r/20200508055656.96389-2-jiada_wang@mentor.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-12Merge tag 'v5.6' into nextDmitry Torokhov30-104/+214
Sync up with mainline to get device tree and other changes.
2020-05-09Input: add driver for the Cypress CY8CTMA140 touchscreenLinus Walleij3-0/+366
This adds a new driver for the Cypress CY8CTMA140 touchscreen. This driver is inspired by out-of-tree code for the Samsung GT-S7710 mobile phone. I have tried to compare the structure and behaviour of this touchscreen to the existing CYTTSP and CYTTSP4 generics and it seems pretty different. It is also different in character from the cy8ctmg110_ts.c. It appears to rather be vaguely related to the Melfas MMS114 driver, yet distinctly different. Dmitry Torokhov rewrote the key scanning code during the submission process so the driver is a joint work. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20200506123435.187432-2-linus.walleij@linaro.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-09Input: applespi - replace zero-length array with flexible-arrayGustavo A. R. Silva1-1/+1
The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. Also, notice that, dynamic memory allocations won't be affected by this change: "Flexible array members have incomplete type, and so the sizeof operator may not be applied. As a quirk of the original implementation of zero-length arrays, sizeof evaluates to zero."[1] sizeof(flexible-array-member) triggers a warning because flexible array members have incomplete type[1]. There are some instances of code in which the sizeof operator is being incorrectly/erroneously applied to zero-length arrays and the result is zero. Such instances may be hiding some bugs. So, this work (flexible-array member conversions) will also help to get completely rid of those sorts of issues. This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20200507185347.GA14499@embeddedor Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-09Input: edt-ft5x06 - prefer asynchronous probeAhmad Fatoum1-0/+1
Probing the device takes a while, because we sleep for 300 ms after a reset; allow asynchronous probing so this can happen in the background while other devices are being probed. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.kernel.org/r/20200227112819.16754-5-m.felsch@pengutronix.de Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-09Input: edt-ft5x06 - improve power management operationsMarco Felsch1-10/+132
It is possible to bring the device into a deep sleep state. To exit this state the reset or wakeup pin must be toggeled as documented in [1]. Because of the poor documentation I used the several downstream kernels [2] and other applications notes [3] to indentify the related registers. Furthermore I added the support to disable the device completely which is obviously the most effective power-saving mechanism. This mechanism needs the reset pin to ensure the power-up/down sequence. We can't apply any of these power-saving mechanism if both pins are missing (not connected) or if it is a wakeup device. [1] https://www.newhavendisplay.com/appnotes/datasheets/touchpanel/FT5x26.pdf https://www.newhavendisplay.com/appnotes/datasheets/touchpanel/FT5x06.pdf [2] https://github.com/linux-sunxi/linux-sunxi/blob/sunxi-3.4/drivers/input/touchscreen/ft5x_ts.c https://github.com/Pablito2020/focaltech-touch-driver/blob/master/ft5336_driver.c [3] https://www.newhavendisplay.com/appnotes/datasheets/touchpanel/FT5x16_registers.pdf Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.kernel.org/r/20200227112819.16754-4-m.felsch@pengutronix.de Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-09Input: edt-ft5x06 - move parameter restore into helperMarco Felsch1-19/+24
We need to restore the parameters if we switch between the factory/work mode and during the resume process if we switched off the power-supply. Therefore refactor edt_ft5x06_work_mode() and move the "restore the parameters" into a helper routine so we can reuse it later. Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.kernel.org/r/20200227112819.16754-3-m.felsch@pengutronix.de Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-09Input: edt-ft5x06 - fix get_default register write accessMarco Felsch1-3/+9
Since commit b6eba86030bf ("Input: edt-ft5x06 - add offset support for ev-ft5726") offset-x and offset-y is supported. Devices using those offset parameters don't support the offset parameter so we need to add the NO_REGISTER check for edt_ft5x06_ts_get_defaults(). Fixes: b6eba86030bf ("Input: edt-ft5x06 - add offset support for ev-ft5726") Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.kernel.org/r/20200227112819.16754-2-m.felsch@pengutronix.de Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-05-05Input: axp20x-pek - always register interrupt handlersHans de Goede1-35/+37
On some X86 devices we do not register an input-device, because the power-button is also handled by the soc_button_array (GPIO) input driver, and we want to avoid reporting power-button presses to userspace twice. Sofar when we did this we also did not register our interrupt handlers, since those were only necessary to report input events. But on at least 2 device models the Medion Akoya E1239T and the GPD win, the GPIO pin used by the soc_button_array driver for the power-button cannot wakeup the system from suspend. Why this does not work is not clear, I've tried comparing the value of all relevant registers on the Cherry Trail SoC, with those from models where this does work. I've checked: PMC registers: FUNC_DIS, FUNC_DIS2, SOIX_WAKE_EN, D3_STS_0, D3_STS_1, D3_STDBY_STS_0, D3_STDBY_STS_1; PMC ACPI I/O regs: PM1_STS_EN, GPE0a_EN and they all have identical contents in the working and non working cases. I suspect that the firmware either sets some unknown register to a value causing this, or that it turns off a power-plane which is necessary for GPIO wakeups to work during suspend. What does work on the Medion Akoya E1239T is letting the AXP288 wakeup the system on a power-button press (the GPD win has a different PMIC). Move the registering of the power-button press/release interrupt-handler from axp20x_pek_probe_input_device() to axp20x_pek_probe() so that the PMIC will wakeup the system on a power-button press, even if we do not register an input device. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Link: https://lore.kernel.org/r/20200426155757.297087-1-hdegoede@redhat.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-04-28Input: synaptics-rmi4 - fix error return code in rmi_driver_probe()Wei Yongjun1-1/+2
Fix to return a negative error code from the input_register_device() error handling case instead of 0, as done elsewhere in this function. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Link: https://lore.kernel.org/r/20200428134948.78343-1-weiyongjun1@huawei.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-04-27Input: synaptics-rmi4 - really fix attn_data use-after-freeEvan Green1-1/+1
Fix a use-after-free noticed by running with KASAN enabled. If rmi_irq_fn() is run twice in a row, then rmi_f11_attention() (among others) will end up reading from drvdata->attn_data.data, which was freed and left dangling in rmi_irq_fn(). Commit 55edde9fff1a ("Input: synaptics-rmi4 - prevent UAF reported by KASAN") correctly identified and analyzed this bug. However the attempted fix only NULLed out a local variable, missing the fact that drvdata->attn_data is a struct, not a pointer. NULL out the correct pointer in the driver data to prevent the attention functions from copying from it. Fixes: 55edde9fff1a ("Input: synaptics-rmi4 - prevent UAF reported by KASAN") Fixes: b908d3cd812a ("Input: synaptics-rmi4 - allow to add attention data") Signed-off-by: Evan Green <evgreen@chromium.org> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200427145537.1.Ic8f898e0147beeee2c005ee7b20f1aebdef1e7eb@changeid Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-04-27Input: i8042 - add ThinkPad S230u to i8042 reset listKevin Locke1-0/+7
On the Lenovo ThinkPad Twist S230u (3347-4HU) with BIOS version "GDETC1WW (1.81 ) 06/27/2019", the keyboard, Synaptics TouchPad, and TrackPoint either do not function or stop functioning a few minutes after boot. This problem has been noted before, perhaps only occurring with BIOS 1.57 and later.[1][2][3][4][5] Odds of a BIOS fix appear to be low: 1.57 was released over 6 years ago and although the [BIOS changelog] notes "Fixed an issue of UEFI touchpad/trackpoint/keyboard/touchscreen" in 1.58, it appears to be insufficient. Setting i8042.reset=1 or adding 33474HU to the reset list avoids the issue on my system from either warm or cold boot. [1]: https://bugs.launchpad.net/bugs/1210748 [2]: https://bbs.archlinux.org/viewtopic.php?pid=1360425 [3]: https://forums.linuxmint.com/viewtopic.php?f=46&t=41200 [4]: https://forums.linuxmint.com/viewtopic.php?f=49&t=157115 [5]: https://forums.lenovo.com/topic/findpost/27/1337119 [BIOS changelog]: https://download.lenovo.com/pccbbs/mobiles/gduj33uc.txt Signed-off-by: Kevin Locke <kevin@kevinlocke.name> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/94f384b0f75f90f71425d7dce7ac82c59ddb87a8.1587702636.git.kevin@kevinlocke.name Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-04-27Revert "Input: i8042 - add ThinkPad S230u to i8042 nomux list"Dmitry Torokhov1-7/+0
This reverts commit 18931506465a762ffd3f4803d36a18d336a67da9. From Kevin Locke: "... nomux only appeared to fix the issue because the controller continued working after warm reboots. After more thorough testing from both warm and cold start, I now believe the entry should be added to i8042_dmi_reset_table rather than i8042_dmi_nomux_table as i8042.reset=1 alone is sufficient to avoid the issue from both states while i8042.nomux is not."
2020-04-27Input: atkbd - receive and use physcode->keycode mapping from FWRajat Jain1-1/+40
Allow the firmware to specify the mapping between the scan code and the linux keycode. This takes the form of a "linux,keymap" property which is an array of u32 values, each value specifying mapping for a key. Signed-off-by: Rajat Jain <rajatja@google.com> Link: https://lore.kernel.org/r/20200427210259.91330-3-rajatja@google.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-04-27Input: atkbd - expose function row physical map to userspaceRajat Jain1-0/+56
Certain keyboards have their top-row keys intended for actions such as "Browser back", "Browser Refresh", "Fullscreen" etc as their primary mode, thus they will send scan codes for those actions. Further, they don't have a dedicated "Fn" key so don't have the capability to generate function key codes (e.g. F1, F2 etc..). However in this case, if userspace still wants to "synthesize" those function keys using the top row action keys, it needs to know the physical position of the top row keys. (Essentially a mapping between usage codes and a physical location in the top row). This patch enhances the atkbd driver to receive such a mapping from the firmware / device tree, and expose it to userspace in the form of a function-row-physmap attribute. The attribute would be a space separated ordered list of physical codes, for the keys in the function row, in left-to-right order. The attribute will only be present if the kernel knows about such mapping, otherwise the attribute shall not be visible. Signed-off-by: Rajat Jain <rajatja@google.com> Link: https://lore.kernel.org/r/20200427210259.91330-2-rajatja@google.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2020-04-27Input: i8042 - attach fwnode to serio i8042 kbd deviceRajat Jain2-0/+4
Attach the firmware node to the serio i8042 kbd device so that device properties can be passed from the firmware. Signed-off-by: Rajat Jain <rajatja@google.com> Link: https://lore.kernel.org/r/20200427210259.91330-1-rajatja@google.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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