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path: root/drivers/input/touchscreen
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2018-09-26input: rohm_bu21023: switch to i2c_lock_bus(..., I2C_LOCK_SEGMENT)Peter Rosin1-2/+2
[ Upstream commit 193c2a07cfaacb9249ab0e3d34bce32490879355 ] Locking the root adapter for __i2c_transfer will deadlock if the device sits behind a mux-locked I2C mux. Switch to the finer-grained i2c_lock_bus with the I2C_LOCK_SEGMENT flag. If the device does not sit behind a mux-locked mux, the two locking variants are equivalent. Signed-off-by: Peter Rosin <peda@axentia.se> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-19Input: atmel_mxt_ts - only use first T9 instanceNick Dyer1-3/+4
[ Upstream commit 36f5d9ef26e52edff046b4b097855db89bf0cd4a ] The driver only registers one input device, which uses the screen parameters from the first T9 instance. The first T63 instance also uses those parameters. It is incorrect to send input reports from the second instances of these objects if they are enabled: the input scaling will be wrong and the positions will be mashed together. This also causes problems on Android if the number of slots exceeds 32. In the future, this could be handled by looking for enabled touch object instances and creating an input device for each one. Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk> Acked-by: Benson Leung <bleung@chromium.org> Acked-by: Yufeng Shen <miletus@chromium.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-16Input: goodix - add new ACPI id for GPD Win 2 touch screenEthan Lee1-0/+1
commit 5ca4d1ae9bad0f59bd6f851c39b19f5366953666 upstream. GPD Win 2 Website: http://www.gpd.hk/gpdwin2.asp Tested on a unit from the first production run sent to Indiegogo backers Signed-off-by: Ethan Lee <flibitijibibo@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-09Input: atmel_mxt_ts - add touchpad button mapping for Samsung Chromebook ProVittorio Gambaletta (VittGam)1-0/+9
commit f372b81101e6895252298e563d634d5e44ae81e7 upstream. This patch adds the correct platform data information for the Caroline Chromebook, so that the mouse button does not get stuck in pressed state after the first click. The Samus button keymap and platform data definition are the correct ones for Caroline, so they have been reused here. Signed-off-by: Vittorio Gambaletta <linuxbugs@vittgam.net> Signed-off-by: Salvatore Bellizzi <lkml@seppia.net> Tested-by: Guenter Roeck <groeck@chromium.org> Cc: stable@vger.kernel.org [dtor: adjusted vendor spelling to match shipping firmware] Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-13Input: goodix - disable IRQs while suspendedHans de Goede1-2/+6
[ Upstream commit faec44b6838312484d63e82286087cf2d5ebb891 ] We should not try to do any i2c transfers before the controller is resumed (which happens before our resume method gets called). So we need to disable our IRQ while suspended to enforce this. The code paths for devices with GPIOs for the int and reset pins already disable the IRQ the through goodix_free_irq(). This commit also disables the IRQ while suspended for devices without GPIOs for the int and reset pins. This fixes the i2c bus sometimes getting stuck after a suspend/resume causing the touchscreen to sometimes not work after a suspend/resume. This has been tested on a GPD pocked device. BugLink: https://github.com/nexus511/gpd-ubuntu-packages/issues/10 BugLink: https://www.reddit.com/r/GPDPocket/comments/7niut2/fix_for_broken_touch_after_resume_all_linux/ Tested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-24Input: ar1021_i2c - fix too long name in driver's device tableDmitry Torokhov1-1/+1
[ Upstream commit 95123fc43560d6f4a60e74f72836e63cd8848f76 ] The name field in structure i2c_device_id is 20 characters, and we expect it to be NULL-terminated, however we are trying to stuff it with 21 bytes and thus NULL-terminator is lost. This causes issues when one creates device with name "MICROCHIP_AR1021_I2C" as i2c core cuts off the last "C", and automatic module loading by alias does not work as result. The -I2C suffix in the device name is superfluous, we know what bus we are dealing with, so let's drop it. Also, no other driver uses capitals, and the manufacturer name is normally not included, except in very rare cases of incompatible name collisions. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=116211 Fixes: dd4cae8bf166 ("Input: Add Microchip AR1021 i2c touchscreen") Reviewed-By: Christian Gmeiner <christian.gmeiner@gmail.com> Tested-by: Martin Kepplinger <martin.kepplinger@ginzinger.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22Input: tsc2007 - check for presence and power down tsc2007 during probeH. Nikolaus Schaller1-0/+8
[ Upstream commit 934df23171e7c5b71d937104d4957891c39748ff ] 1. check if chip is really present and don't succeed if it isn't. 2. if it succeeds, power down the chip until accessed Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-23Input: 88pm860x-ts - fix child-node lookupJohan Hovold1-4/+12
commit 906bf7daa0618d0ef39f4872ca42218c29a3631f upstream. Fix child node-lookup during probe, which ended up searching the whole device tree depth-first starting at parent rather than just matching on its children. To make things worse, the parent node was prematurely freed, while the child node was leaked. Fixes: 2e57d56747e6 ("mfd: 88pm860x: Device tree support") Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-30Input: sur40 - validate number of endpoints before using themJohan Hovold1-0/+3
commit 92461f5d723037530c1f36cce93640770037812c upstream. Make sure to check the number of endpoints to avoid dereferencing a NULL-pointer or accessing memory that lie beyond the end of the endpoint array should a malicious device lack the expected endpoints. Fixes: bdb5c57f209c ("Input: add sur40 driver for Samsung SUR40... ") Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-19Input: elants_i2c - avoid divide by 0 errors on bad touchscreen dataGuenter Roeck1-2/+2
commit 1c3415a06b1016a596bfe59e0cfee56c773aa958 upstream. The following crash may be seen if bad data is received from the touchscreen. [ 2189.425150] elants_i2c i2c-ELAN0001:00: unknown packet ff ff ff ff [ 2189.430738] divide error: 0000 [#1] PREEMPT SMP [ 2189.434679] gsmi: Log Shutdown Reason 0x03 [ 2189.434689] Modules linked in: ip6t_REJECT nf_reject_ipv6 rfcomm evdi uinput uvcvideo cmac videobuf2_vmalloc videobuf2_memops snd_hda_codec_hdmi i2c_dev videobuf2_core snd_soc_sst_cht_bsw_rt5645 snd_hda_intel snd_intel_sst_acpi btusb btrtl btbcm btintel bluetooth snd_soc_sst_acpi snd_hda_codec snd_intel_sst_core snd_hwdep snd_soc_sst_mfld_platform snd_hda_core snd_soc_rt5645 memconsole_x86_legacy memconsole zram snd_soc_rl6231 fuse ip6table_filter iwlmvm iwlwifi iwl7000_mac80211 cfg80211 iio_trig_sysfs joydev cros_ec_sensors cros_ec_sensors_core industrialio_triggered_buffer kfifo_buf industrialio snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device ppp_async ppp_generic slhc tun [ 2189.434866] CPU: 0 PID: 106 Comm: irq/184-ELAN000 Tainted: G W 3.18.0-13101-g57e8190 #1 [ 2189.434883] Hardware name: GOOGLE Ultima, BIOS Google_Ultima.7287.131.43 07/20/2016 [ 2189.434898] task: ffff88017a0b6d80 ti: ffff88017a2bc000 task.ti: ffff88017a2bc000 [ 2189.434913] RIP: 0010:[<ffffffffbecc48d5>] [<ffffffffbecc48d5>] elants_i2c_irq+0x190/0x200 [ 2189.434937] RSP: 0018:ffff88017a2bfd98 EFLAGS: 00010293 [ 2189.434948] RAX: 0000000000000000 RBX: ffff88017a967828 RCX: ffff88017a9678e8 [ 2189.434962] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000000 [ 2189.434975] RBP: ffff88017a2bfdd8 R08: 00000000000003e8 R09: 0000000000000000 [ 2189.434989] R10: 0000000000000000 R11: 000000000044a2bd R12: ffff88017a991800 [ 2189.435001] R13: ffffffffbe8a2a53 R14: ffff88017a0b6d80 R15: ffff88017a0b6d80 [ 2189.435011] FS: 0000000000000000(0000) GS:ffff88017fc00000(0000) knlGS:0000000000000000 [ 2189.435022] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 2189.435030] CR2: 00007f678d94b000 CR3: 000000003f41a000 CR4: 00000000001007f0 [ 2189.435039] Stack: [ 2189.435044] ffff88017a2bfda8 ffff88017a9678e8 646464647a2bfdd8 0000000006e09574 [ 2189.435060] 0000000000000000 ffff88017a088b80 ffff88017a921000 ffffffffbe8a2a53 [ 2189.435074] ffff88017a2bfe08 ffffffffbe8a2a73 ffff88017a0b6d80 0000000006e09574 [ 2189.435089] Call Trace: [ 2189.435101] [<ffffffffbe8a2a53>] ? irq_thread_dtor+0xa9/0xa9 [ 2189.435112] [<ffffffffbe8a2a73>] irq_thread_fn+0x20/0x40 [ 2189.435123] [<ffffffffbe8a2be1>] irq_thread+0x14e/0x222 [ 2189.435135] [<ffffffffbee8cbeb>] ? __schedule+0x3b3/0x57a [ 2189.435145] [<ffffffffbe8a29aa>] ? wake_threads_waitq+0x2d/0x2d [ 2189.435156] [<ffffffffbe8a2a93>] ? irq_thread_fn+0x40/0x40 [ 2189.435168] [<ffffffffbe87c385>] kthread+0x10e/0x116 [ 2189.435178] [<ffffffffbe87c277>] ? __kthread_parkme+0x67/0x67 [ 2189.435189] [<ffffffffbee900ac>] ret_from_fork+0x7c/0xb0 [ 2189.435199] [<ffffffffbe87c277>] ? __kthread_parkme+0x67/0x67 [ 2189.435208] Code: ff ff eb 73 0f b6 bb c1 00 00 00 83 ff 03 7e 13 49 8d 7c 24 20 ba 04 00 00 00 48 c7 c6 8a cd 21 bf eb 4d 0f b6 83 c2 00 00 00 99 <f7> ff 83 f8 37 75 15 48 6b f7 37 4c 8d a3 c4 00 00 00 4c 8d ac [ 2189.435312] RIP [<ffffffffbecc48d5>] elants_i2c_irq+0x190/0x200 [ 2189.435323] RSP <ffff88017a2bfd98> [ 2189.435350] ---[ end trace f4945345a75d96dd ]--- [ 2189.443841] Kernel panic - not syncing: Fatal exception [ 2189.444307] Kernel Offset: 0x3d800000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 2189.444519] gsmi: Log Shutdown Reason 0x02 The problem was seen with a 3.18 based kernel, but there is no reason to believe that the upstream code is safe. Fixes: 66aee90088da2 ("Input: add support for Elan eKTH I2C touchscreens") Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-14Merge branch 'for-linus' of ↵Linus Torvalds1-2/+36
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull some more input subsystem updates from Dmitry Torokhov: "An update to the ALPS driver to support the V8 protocol with touchstick, a change for i8042 to skip selftest on many Asus laptops which helps to keep their touchpads working after resume, and a couple other driver fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: i8042 - skip selftest on ASUS laptops Input: melfas_mip4 - add ic_name sysfs attribute Input: melfas_mip4 - add maintainer information Input: melfas_mip4 - add devicetree binding documentations Input: elantech - add Fujitsu Lifebook E556 to force crc_enabled Input: synaptics-rmi4 - fix error handling in I2C transport driver Input: synaptics-rmi4 - fix error handling in SPI transport driver Input: ALPS - add V8 protocol documentation Input: ALPS - set DualPoint flag for 74 03 28 devices Input: ALPS - allow touchsticks to report pressure Input: ALPS - handle 0-pressure 1F events Input: ALPS - add touchstick support for SS5 hardware Input: elantech - force needed quirks on Fujitsu H760 Input: elantech - fix Lenovo version typo
2016-10-14Merge branch 'next' into for-linusDmitry Torokhov1-2/+36
Prepare second round of input updates for 4.9 merge window.
2016-10-12Input: melfas_mip4 - add ic_name sysfs attributeSangwon Jee1-2/+36
Add ic_name sysfs attribute for retrieving IC model name. Signed-off-by: Sangwon Jee <jeesw@melfas.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-10-11Merge tag 'media/v4.9-1' of ↵Linus Torvalds3-34/+638
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - Documentation improvements: conversion of all non-DocBook documents to Sphinx and lots of fixes to the uAPI media book - New PCI driver for Techwell TW5864 media grabber boards - New SoC driver for ATMEL Image Sensor Controller - Removal of some obsolete SoC drivers (s5p-tv driver and soc_camera drivers) - Addition of ST CEC driver - Lots of drivers fixes, improvements and additions * tag 'media/v4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (464 commits) [media] ttusb_dec: avoid the risk of go past buffer [media] cx23885: Fix some smatch warnings [media] si2165: switch to regmap [media] si2165: use i2c_client->dev instead of i2c_adapter->dev for logging [media] si2165: Remove legacy attach [media] cx231xx: attach si2165 driver via i2c_client [media] cx231xx: Prepare for attaching new style i2c_client DVB demod drivers [media] cx23885: attach si2165 driver via i2c_client [media] si2165: support i2c_client attach [media] si2165: avoid division by zero [media] rcar-vin: add R-Car gen2 fallback compatibility string [media] lgdt3306a: remove 20*50 msec unnecessary timeout [media] cx25821: Remove deprecated create_singlethread_workqueue [media] cx25821: Drop Freeing of Workqueue [media] cxd2841er: force 8MHz bandwidth for DVB-C if specified bw not supported [media] redrat3: hardware-specific parameters [media] redrat3: remove hw_timeout member [media] cxd2841er: BER and SNR reading for ISDB-T [media] dvb-usb: avoid link error with dib3000m{b,c| [media] dvb-usb: split out common parts of dibusb ...
2016-10-07Merge branch 'for-linus' of ↵Linus Torvalds11-390/+403
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input subsystem updates from Dmitry Torokhov: "You will get - a new driver for Elan eKTF2127 touchscreen controllers - a new "gpio-decoder" driver to read and report state of several GPIO lines - an ADC resistor ladder driver - the ft6326 driver is removed because edt-ft5x06 handles the same devices just fine. .. plus the regular slew of driver fixes/enhancements" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (26 commits) Input: elan_i2c - fix return tests of i2c_smbus_read_block_data() Input: ektf2127 - mark PM functions as __maybe_unused Input: snvs_pwrkey - drop input_free_device call if input_register_device fails Input: add support for Elan eKTF2127 touchscreen controller Input: serio - add hangup support Input: tps65218-pwrbutton - add support for tps65217 variant Input: jornada720_ts - get rid of mach/irqs.h and mach/hardware.h includes Input: jornada720_kbd - remove unneeded mach/hardware.h include Input: focaltech - mark focaltech_set_resolution() static Input: wdt87xx_i2c - fix the flash erase issue Input: gpio-keys-polled - don't use unit-address with button nodes Input: add generic input driver to read encoded GPIO lines Input: add ADC resistor ladder driver Input: pegasus_notetaker - directly include workqueue header Input: elants_i2c - get product id on recovery mode for FW update Input: wm97xx - remove deprecated create_singletheread_workqueue Input: mc13783_ts - remove deprecated create_singletheread_workqueue Input: psmouse - remove deprecated create_singletheread_workqueue Input: jornada720_kbd - switch to using dev_dbg Input: jornada720_kbd - get rid of mach/irqs.h include ...
2016-10-05Merge tag 'v4.8' into patchworkMauro Carvalho Chehab2-9/+10
Linux 4.8 * tag 'v4.8': (1761 commits) Linux 4.8 ARM: 8618/1: decompressor: reset ttbcr fields to use TTBR0 on ARMv7 MIPS: CM: Fix mips_cm_max_vp_width for non-MT kernels on MT systems include/linux/property.h: fix typo/compile error ocfs2: fix deadlock on mmapped page in ocfs2_write_begin_nolock() mm: workingset: fix crash in shadow node shrinker caused by replace_page_cache_page() MAINTAINERS: Switch to kernel.org email address for Javi Merino x86/entry/64: Fix context tracking state warning when load_gs_index fails x86/boot: Initialize FPU and X86_FEATURE_ALWAYS even if we don't have CPUID x86/vdso: Fix building on big endian host x86/boot: Fix another __read_cr4() case on 486 sctp: fix the issue sctp_diag uses lock_sock in rcu_read_lock sctp: change to check peer prsctp_capable when using prsctp polices sctp: remove prsctp_param from sctp_chunk sctp: move sent_count to the memory hole in sctp_chunk tg3: Avoid NULL pointer dereference in tg3_io_error_detected() x86/init: Fix cr4_init_shadow() on CR4-less machines MIPS: Fix detection of unsupported highmem with cache aliases MIPS: Malta: Fix IOCU disable switch read for MIPS64 MIPS: Fix BUILD_ROLLBACK_PROLOGUE for microMIPS ...
2016-10-04Merge branch 'next' into for-linusDmitry Torokhov11-390/+403
Prepare first round of input updates for 4.9 merge window.
2016-10-04Input: ektf2127 - mark PM functions as __maybe_unusedArnd Bergmann1-2/+2
The newly added ektf2127 driver uses the SIMPLE_DEV_PM_OPS macro to conditionally refer to the resume/suspend functions, which causes a warning when CONFIG_PM_SLEEP is disabled: drivers/input/touchscreen/ektf2127.c:168:12: error: 'ektf2127_resume' defined but not used [-Werror=unused-function] drivers/input/touchscreen/ektf2127.c:156:12: error: 'ektf2127_suspend' defined but not used [-Werror=unused-function] We could either put these functions inside of an #ifdef or add __maybe_unused annotations. This uses the second approach, which is generally more foolproof. Fixes: 9ca5bf5029b6 ("Input: add support for Elan eKTF2127 touchscreen controller") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-09-27Input: add support for Elan eKTF2127 touchscreen controllerSiebren Vroegindeweij3-0/+349
This adds a driver for the Elan eKTF2127 touchscreen controller, which speaks an i2c protocol which is distinctly different from the already supported eKTH controllers. Signed-off-by: Michel Verlaan <michel.verl@gmail.com> Signed-off-by: Siebren Vroegindeweij <siebren.vroegindeweij@hotmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-09-24Merge branch 'for-linus' of ↵Linus Torvalds1-7/+9
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "Just a fix up for the firmware handling to the Silead driver (which is a new driver in this release)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: silead_gsl1680 - use "silead/" prefix for firmware loading Input: silead_gsl1680 - document firmware-name, fix implementation
2016-09-19[media] Input: v4l-touch - add copyright linesNick Dyer1-0/+1
Add copyright lines for Zodiac who paid for the V4L touch work. Signed-off-by: Nick Dyer <nick@shmanahar.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-19[media] Input: atmel_mxt: disallow impossible configurationArnd Bergmann1-1/+2
The newnly added debug mode for the atmel_mxt_ts driver relies on the v4l2 interface and vb2_vmalloc, but those might be configured as loadable modules when the driver itself is built-in, resulting in a link failure: drivers/input/touchscreen/atmel_mxt_ts.o: In function `mxt_vidioc_querycap': atmel_mxt_ts.c:(.text.mxt_vidioc_querycap+0x10): undefined reference to `video_devdata' drivers/input/touchscreen/atmel_mxt_ts.o: In function `mxt_buffer_queue': atmel_mxt_ts.c:(.text.mxt_buffer_queue+0x20): undefined reference to `vb2_plane_vaddr' atmel_mxt_ts.c:(.text.mxt_buffer_queue+0x164): undefined reference to `vb2_buffer_done' drivers/input/touchscreen/atmel_mxt_ts.o: In function `mxt_free_object_table': atmel_mxt_ts.c:(.text.mxt_free_object_table+0x18): undefined reference to `video_unregister_device' atmel_mxt_ts.c:(.text.mxt_free_object_table+0x20): undefined reference to `v4l2_device_unregister' The best workaround I could come up with is to disallow the debug mode unless it's actually possible to call it. Fixes: ecfdd7e2660e ("[media] Input: atmel_mxt_ts - output diagnostic debug via V4L2 device") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nick Dyer <nick@shmanahar.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-10Input: silead_gsl1680 - use "silead/" prefix for firmware loadingHans de Goede1-5/+6
The silead touch-controller ICs use a different firmware per digitizer / tablet model. So there are going to be quite a few of then and they really should be under a separate subdir. This commit prefixes the default firmware names with "silead/" just like we are already doing for devicetree specified firmware names. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-09-10Input: silead_gsl1680 - document firmware-name, fix implementationHans de Goede1-2/+3
The driver has supported touchscreen-fw-name to specify the firmware to load since it has been merged, but this was omitted from the dt-binding documentation. During review of adding touchscreen-fw-name to the binding documentation it was brought up that there is a standard property name called "firmware-name" for this, which should be used. Since there are no users of touchscreen-fw-name yet, this commit adds documentation of "firmware-name" to the dt-binding documentation and switches the driver over to use this. This commit also makes the driver add a "silead/" prefix to the firmware name from dt before calling request_firmware. That the firmware files are stored under /lib/firmware/silead under Linux is an implementation detail and does not belong in devicetree. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-09-10Input: jornada720_ts - get rid of mach/irqs.h and mach/hardware.h includesRussell King1-7/+14
Switch the jornada720 touchscreen driver to obtain its gpio from the platform device via gpiolib and derive the interrupt from the GPIO, rather than via a hard-coded interrupt number obtained from the mach/irqs.h and mach/hardware.h headers. Tested-by: Adam Wysocki <armlinux@chmurka.net> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-09-05Input: wdt87xx_i2c - fix the flash erase issueHungNien Chen1-2/+3
The spec says that flash erase time is 30ms typical/200ms max, so let's replace current 50ms wait with 200ms to avoid potential failures. Signed-off-by: HungNien Chen <hn.chen@weidahitech.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-27Merge branch 'for-linus' of ↵Linus Torvalds2-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input subsystem fixes from Dmitry Torokhov: "Simply small driver fixups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: ads7846 - remove redundant regulator_disable call Input: synaptics-rmi4 - fix register descriptor subpacket map construction Input: tegra-kbc - fix inverted reset logic Input: silead - use devm_gpiod_get Input: i8042 - set up shared ps2_cmd_mutex for AUX ports
2016-08-25Input: elants_i2c - get product id on recovery mode for FW updateJohnny Chuang1-11/+20
We use hw version to construct name of file holding touchscreen firmware, so let's try reading it even if touchscreen initialization fails (the firmware supports reading product/hardware id even when device is in recovery/boot mode). Signed-off-by: Johnny Chuang <johnny.chuang@emc.com.tw> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-25Input: wm97xx - remove deprecated create_singletheread_workqueueBhaktipriya Shridhar1-1/+1
alloc_ordered_workqueue() replaces deprecated create_singlethread_workqueue(). It queues work items via &wm->ts_reader and &wm->pen_event_work which map to wm97xx_pen_irq_worker (handles a pen down interrupt) and wm97xx_ts_reader (the touchscreen sample reader) respectively. Hence, an ordered dedicated workqueue has been used. Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-25Input: mc13783_ts - remove deprecated create_singletheread_workqueueBhaktipriya Shridhar1-17/+7
The workqueue "workqueue" has a single workitem(&priv->work) and hence doesn't require ordering. Also, it is not being used on a memory reclaim path. Hence, the singlethreaded workqueue has been replaced with the use of system_wq. System workqueues have been able to handle high level of concurrency for a long time now and hence it's not required to have a singlethreaded workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue created with create_singlethread_workqueue(), system_wq allows multiple work items to overlap executions even on the same CPU; however, a per-cpu workqueue doesn't have any CPU locality or global ordering guarantee unless the target CPU is explicitly specified and thus the increase of local concurrency shouldn't make any difference. Workitem is sync cancelled in mc13783_ts_remove() to ensure that there are no workitems pending when the driver is disconnected. Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-24[media] sur40: properly report a single frame rate of 60 FPSFlorian Echtler1-2/+18
The device hardware is always running at 60 FPS, so report this both via PARM_IOCTL and ENUM_FRAMEINTERVALS. [hans.verkuil@cisco.com: fix suspect indent checkpatch warning] [mchehab@s-opensource.com: fix a trivial merge conflict] Signed-off-by: Martin Kaltenbrunner <modin@yuri.at> Signed-off-by: Florian Echtler <floe@butterbrot.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-23[media] Input: sur40 - use new V4L2 touch input typeNick Dyer1-33/+91
Support both V4L2_TCH_FMT_TU08 and V4L2_PIX_FMT_GREY for backwards compatibility. Signed-off-by: Nick Dyer <nick@shmanahar.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-23[media] Input: atmel_mxt_ts - add support for reference dataNick Dyer1-6/+51
There are different datatypes available from a maXTouch chip. Add support to retrieve reference data as well. Signed-off-by: Nick Dyer <nick@shmanahar.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-23[media] Input: atmel_mxt_ts - add diagnostic data support for mXT1386Nick Dyer1-3/+28
The mXT1386 family of chips have a different architecture which splits the diagnostic data into 3 columns. Signed-off-by: Nick Dyer <nick@shmanahar.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-23[media] Input: atmel_mxt_ts - handle diagnostic data orientationNick Dyer1-5/+21
Invert the diagnostic data to match the orientation of the input device. Signed-off-by: Nick Dyer <nick@shmanahar.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-23[media] Input: atmel_mxt_ts - read touchscreen sizeNick Dyer1-6/+36
The touchscreen may have a margin where not all the matrix is used. Read the parameters from T9 and T100 and take account of the difference. Note: this does not read the XORIGIN/YORIGIN fields so it assumes that the touchscreen starts at (0,0) Signed-off-by: Nick Dyer <nick@shmanahar.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-23[media] Input: atmel_mxt_ts - output diagnostic debug via V4L2 deviceNick Dyer2-2/+249
Register a video device to output T37 diagnostic data. Signed-off-by: Nick Dyer <nick@shmanahar.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-23[media] Input: atmel_mxt_ts - add support for T37 diagnostic dataNick Dyer2-0/+165
Atmel maXTouch devices have a T37 object which can be used to read raw touch deltas from the device. This consists of an array of 16-bit integers, one for each node on the touchscreen matrix. Signed-off-by: Nick Dyer <nick@shmanahar.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-23Input: pixcir_i2c_ts - remove a useless blank lineLABBE Corentin1-1/+0
This patch fix the following checkpatch report: Blank lines aren't necessary after an open brace Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-23Input: pixcir_i2c_ts - remove text about writing to Free Software FoundationLABBE Corentin1-4/+0
Checkpatch complains about the text suggesting writing to Free Software Foundation for GPLv2 license copy. This patch remove that text. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-23Input: pixcir_i2c_ts - simplify code with of_device_get_match_dataLABBE Corentin1-7/+1
The usage of of_device_get_match_data reduce the code size a bit. Furthermore, it is better to use a standard function for getting the match data. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-23Input: remove duplicate ft6236 driverHans de Goede4-340/+8
The new(ish) ft6236 simply re-implements the M09 protocol of the (much) older edt-ft5x06.c driver. This commit removes this duplicate driver and adds the i2c ids and dt compatible string to the edt-ft5x06.c driver to keep compatibility. This commit also adds the standard touchscreen properties as optional properties to the edt,ft5x06 binding, these were documented in the focaltech,ft6236 bindingi, but were missing from the edt,ft5x06 doc. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-23Input: ads7846 - remove redundant regulator_disable callPetr Cvek1-1/+0
ADS7846 regulator is disabled twice in a row in ads7846_remove(). Valid one is in ads7846_disable(). Removing the ads7846 module causes warning about unbalanced disables. ... WARNING: CPU: 0 PID: 29269 at drivers/regulator/core.c:2251 _regulator_disable+0xf8/0x130 unbalanced disables for vads7846 CPU: 0 PID: 29269 Comm: rmmod Tainted: G D W 4.7.0+ #3 Hardware name: HTC Magician ... show_stack+0x10/0x14 __warn+0xd8/0x100 warn_slowpath_fmt+0x38/0x48 _regulator_disable+0xf8/0x130 regulator_disable+0x34/0x60 ads7846_remove+0x58/0xd4 [ads7846] spi_drv_remove+0x1c/0x34 __device_release_driver+0x84/0x114 driver_detach+0x8c/0x90 bus_remove_driver+0x5c/0xc8 SyS_delete_module+0x1a0/0x238 ret_fast_syscall+0x0/0x38 Signed-off-by: Petr Cvek <petr.cvek@tul.cz> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-23Input: silead - use devm_gpiod_getHans de Goede1-1/+1
The silead code is using devm_foo for everything (and does not free any resources). Except that it is using gpiod_get instead of devm_gpiod_get (but is not freeing the gpio_desc), change this to use devm_gpiod_get so that the gpio will be properly released. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-06Merge branch 'for-linus' of ↵Linus Torvalds5-1/+1006
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull more input updates from Dmitry Torokhov: "Two new drivers for touchscreen controllers: - Silead touchscreen controllers - SiS 9200 family touchscreen controllers and a few driver fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: silead - remove some dead code Input: sis-i2c - select CONFIG_CRC_ITU_T Input: add driver for SiS 9200 family I2C touchscreen controllers Input: ili210x - fix permissions on "calibrate" attribute Input: elan_i2c - properly wake up touchpad on ASUS laptops Input: add driver for Silead touchscreens Input: elantech - fix debug dump of the current packet Input: rotary_encoder - support binary encoding of states Input: xpad - power off wireless 360 controllers on suspend Input: i8042 - break load dependency between atkbd/psmouse and i8042 Input: synaptics-rmi4 - do not check for NULL when calling of_node_put() Input: cros_ec_keyb - cleanup use of dev
2016-08-04Input: silead - remove some dead codeDan Carpenter1-3/+0
buf[0] is an unsigned char. touch_nr is an int. The test for negative here doesn't make sense so I have removed it. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-04Input: sis-i2c - select CONFIG_CRC_ITU_TArnd Bergmann1-0/+1
The newly added sis_i2c driver fails to link without the CRC_ITU_T driver enabled: drivers/input/touchscreen/sis_i2c.o: In function `sis_ts_irq_handler': sis_i2c.c:(.text+0xc0): undefined reference to `crc_itu_t' This adds a Kconfig select statement. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: a485cb037fe6 ("Input: add driver for SiS 9200 family I2C touchscreen controllers") Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-04Merge branch 'next' into for-linusDmitry Torokhov5-1/+1008
Prepare second round of input updates for 4.8 merge window.
2016-08-03Input: add driver for SiS 9200 family I2C touchscreen controllersMika Penttilä3-0/+426
This is a driver for SiS 9200 family touchscreen controllers using I2C bus. Signed-off-by: Mika Penttilä <mika.penttila@nextfour.com> Acked-by: Tammy Tseng <tammy_tseng@sis.com> Acked-by: Yuger Yu <yuger_yu@sis.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-08-03Input: ili210x - fix permissions on "calibrate" attributeDmitry Torokhov1-1/+1
"calibrate" attribute does not provide "show" methods and thus we should not mark it as readable. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-23 12:10:03 +0300