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2017-08-18Input: spaceball - constify serio_device_idArvind Yadav1-1/+1
serio_device_id are not supposed to change at runtime. All functions working with serio_device_id provided by <linux/serio.h> work with const serio_device_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-18Input: magellan - constify serio_device_idArvind Yadav1-1/+1
serio_device_id are not supposed to change at runtime. All functions working with serio_device_id provided by <linux/serio.h> work with const serio_device_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-18Input: iforce - constify serio_device_idArvind Yadav1-1/+1
serio_device_id are not supposed to change at runtime. All functions working with serio_device_id provided by <linux/serio.h> work with const serio_device_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-18Input: elan_i2c - support touchpads with two physical buttonsKT Liao4-5/+23
Elan touchpads on Asus ROG G752xx series laptops have 2 physical buttons. Luckily we can query the touchpad to see if it is a clickpad variant and adjust the behavior accordingly. Signed-off-by: KT Liao <kt.liao@emc.com.tw> Tested-by: Maxime Bellengé <maxime.bellenge@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-17Input: i8042 - constify pnp_device_idArvind Yadav1-2/+2
pnp_device_id are not supposed to change at runtime. All functions working with pnp_device_id provided by <linux/pnp.h> work with const pnp_device_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-17Input: axp20x-pek - add support for AXP221 PEKQuentin Schulz1-0/+18
The AXP221 has different values for startup time bits from the AXP20X. Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-17Input: axp20x-pek - use driver_data of platform_device_id instead of ↵Quentin Schulz1-45/+90
extended attributes To prepare an upcoming patch adding support for another PMIC that has different startup and shutdown time, use driver_data of platform_device_id instead of a fixed extended device attribute. By doing so, we also remove a lot of nested structures that aren't useful. With this patch, a new PMIC can be easily supported by just filling correctly its ax20x_info structure and adding a platform_device_id. Moreover, since we get rid of extended attributes, rename axp20x_store_ext_attr to axp20x_store_attr and axp20x_show_ext_attr to axp20x_show_attr. Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-14Input: ati_remote2 - constify usb_device_idArvind Yadav1-1/+1
usb_device_id are not supposed to change at runtime. All functions working with usb_device_id provided by <linux/usb.h> work with const usb_device_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-14Input: sun4i-ts - constify thermal_zone_of_device_ops structuresJulia Lawall1-1/+1
The thermal_zone_of_device_ops structure is only passed as the fourth argument to devm_thermal_zone_of_sensor_register, which is declared as const. Thus the thermal_zone_of_device_ops structure itself can be const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-14Input: pcspkr - fix code style and error value in pcspkr_eventMunir Contractor1-6/+11
This patch fixes the following issues in pcspkr: * Return -EINVAL when input arguments are not valid in pcspkr_event function instead of -1. * Replace <asm/io.h> with <linux/io.h> * Fix indentation of case blocks in switch statement * Reduce length of line 28 to less than 80 characters The style issues were discovered by checkpatch.pl script. Signed-off-by: Munir Contractor <munircontractor@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-14Input: mxs-lradc - make symbol mxs_lradc_ts_irq_names staticWei Yongjun1-1/+1
Fixes the following sparse warning: drivers/input/touchscreen/mxs-lradc-ts.c:33:12: warning: symbol 'mxs_lradc_ts_irq_names' was not declared. Should it be static? Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> [dtor: changed to static const char * const] Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-14Input: mxs-lradc - use correct error checkPan Bian1-2/+2
Function devm_ioremap() will return a NULL pointer on failure. However, in function mxs_lradc_ts_probe(), its return value is checked with IS_ERR(), which cannot detect the exceptional case. Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-14Input: mxs-lradc - do a NULL check on ioresFabio Estevam1-0/+2
platform_get_resource() may fail, so we should better do a NULL check and return error on failure. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-07Input: xpad - constify usb_device_idArvind Yadav1-1/+1
usb_device_id are not supposed to change at runtime. All functions working with usb_device_id provided by <linux/usb.h> work with const usb_device_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-07Input: kbtab - constify usb_device_idArvind Yadav1-1/+1
usb_device_id are not supposed to change at runtime. All functions working with usb_device_id provided by <linux/usb.h> work with const usb_device_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-07Input: acecad - constify usb_device_idi and fix space before '[' errorArvind Yadav1-1/+1
usb_device_id are not supposed to change at runtime. All functions working with usb_device_id provided by <linux/usb.h> work with const usb_device_id. So mark the non-const structs as const. Fix checkpatch.pl error: ERROR: space prohibited before open square bracket '['. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-07Input: synaptics_usb - constify usb_device_idArvind Yadav1-1/+1
usb_device_id are not supposed to change at runtime. All functions working with usb_device_id provided by <linux/usb.h> work with const usb_device_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-07Input: appletouch - constify usb_device_idArvind Yadav1-1/+1
usb_device_id are not supposed to change at runtime. All functions working with usb_device_id provided by <linux/usb.h> work with const usb_device_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-07Input: powermate - constify usb_device_id and fix space before '[' errorArvind Yadav1-1/+1
usb_device_id are not supposed to change at runtime. All functions working with usb_device_id provided by <linux/usb.h> work with const usb_device_id. So mark the non-const structs as const. Fix checkpatch.pl error: ERROR: space prohibited before open square bracket '['. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-07Input: keyspan_remote - constify usb_device_idArvind Yadav1-1/+1
usb_device_id are not supposed to change at runtime. All functions working with usb_device_id provided by <linux/usb.h> work with const usb_device_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-07Input: iforce - constify usb_device_id and fix space before '[' errorArvind Yadav1-1/+1
usb_device_id are not supposed to change at runtime. All functions working with usb_device_id provided by <linux/usb.h> work with const usb_device_id. So mark the non-const structs as const. Fix checkpatch.pl error: ERROR: space prohibited before open square bracket '['. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-25Input: mousedev - fix implicit conversion warningNick Desaulniers1-28/+34
Clang warns: drivers/input/mousedev.c:653:63: error: implicit conversion from 'int' to 'signed char' changes value from 200 to -56 [-Wconstant-conversion] client->ps2[1] = 0x60; client->ps2[2] = 3; client->ps2[3] = 200; ~ ^~~ As the PS2 data is really a stream of bytes, let's switch to using u8 type for it, which silences this warning. Signed-off-by: Nick Desaulniers <nick.desaulniers@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-24Input: add power key driver for Rockchip RK805 PMICJoseph Chen3-0/+123
This driver provides a input driver for the power key on the Rockchip RK805 PMIC. Signed-off-by: Joseph Chen <chenjh@rock-chips.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-24Merge branch 'bind_unbind' of ↵Dmitry Torokhov568-3761/+5735
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core into next This brings in devm_device_add_group() and friends so that we can create driver-specific device attributes as managed resources.
2017-07-22Input: axp20x-pek - switch to using devm_device_add_group()Dmitry Torokhov1-17/+1
Now that we have proper managed API to create device attributes, let's use it instead of installing a custom devm action. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-22Input: synaptics_rmi4 - use devm_device_add_group() for attributes in F01Dmitry Torokhov1-8/+3
Now that we have proper managed API to create device attributes, let's start using it instead of the manual unwinding. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-22Input: gpio_keys - use devm_device_add_group() for attributesDmitry Torokhov1-14/+2
Now that we have proper managed API to create device attributes, let's start using it instead of the manual unwinding. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-22driver core: add devm_device_add_group() and friendsDmitry Torokhov1-0/+130
Many drivers create additional driver-specific device attributes when binding to the device, and providing managed version of device_create_group() will simplify unbinding and error handling in probe path for such drivers. Without managed version driver writers either have to mix manual and managed resources, which is prone to errors, or open-code this function by providing a wrapper to device_add_group() and use it with devm_add_action() or devm_add_action_or_reset(). Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-22driver core: make device_{add|remove}_groups() publicDmitry Torokhov2-5/+2
Many drivers create additional driver-specific device attributes when binding to the device. To avoid them calling SYSFS API directly, let's export these helpers. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-22driver core: emit uevents when device is bound to a driverDmitry Torokhov1-0/+4
There are certain touch controllers that may come up in either normal (application) or boot mode, depending on whether firmware/configuration is corrupted when they are powered on. In boot mode the kernel does not create input device instance (because it does not necessarily know the characteristics of the input device in question). Another number of controllers does not store firmware in a non-volatile memory, and they similarly need to have firmware loaded before input device instance is created. There are also other types of devices with similar behavior. There is a desire to be able to trigger firmware loading via udev, but it has to happen only when driver is bound to a physical device (i2c or spi). These udev actions can not use ADD events, as those happen too early, so we are introducing BIND and UNBIND events that are emitted at the right moment. Also, many drivers create additional driver-specific device attributes when binding to the device, to provide userspace with additional controls. The new events allow userspace to adjust these driver-specific attributes without worrying that they are not there yet. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-12Input: sur40 - skip all blobs that are not touchesFlorian Echtler1-9/+13
The SUR40 labels all reported blobs as touch, token, or generic blob. Previously, all blobs were reported as touch regardless of type, causing lots of false positives. Present patch fixes this. Signed-off-by: Martin Kaltenbrunner <modin@yuri.at> Signed-off-by: Florian Echtler <floe@butterbrot.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: sur40 - silence unnecessary noisy debug outputFlorian Echtler1-2/+5
This information is unneccessary, even as debug output. Leave commented out as documentation of the packet ID quirk. Signed-off-by: Martin Kaltenbrunner <modin@yuri.at> Signed-off-by: Florian Echtler <floe@butterbrot.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: sur40 - add additional reverse-engineered informationFlorian Echtler1-5/+12
Due to recent reverse engineering efforts, a lot more information is now available about the internals of the SUR40. We document this in the kernel driver for future use. Signed-off-by: Martin Kaltenbrunner <modin@yuri.at> Signed-off-by: Florian Echtler <floe@butterbrot.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: ads7846 - constify attribute_group structuresArvind Yadav1-2/+2
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 9086 624 0 9710 25ee drivers/input/touchscreen/ads7846.o File size After adding 'const': text data bss dec hex filename 9198 496 0 9694 25de drivers/input/touchscreen/ads7846.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: elants_i2c - constify attribute_group structuresArvind Yadav1-1/+1
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 9448 1008 0 10456 28d8 drivers/input/touchscreen/elants_i2c.o File size After adding 'const': text data bss dec hex filename 9496 944 0 10440 28c8 drivers/input/touchscreen/elants_i2c.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: raydium_i2c_ts - constify attribute_group structuresArvind Yadav1-1/+1
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 7801 560 0 8361 20a9 drivers/input/touchscreen/raydium_i2c_ts.o File size After adding 'const': text data bss dec hex filename 7849 496 0 8345 2099 drivers/input/touchscreen/raydium_i2c_ts.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: psmouse - constify attribute_group structuresArvind Yadav1-1/+1
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 12850 740 12 13602 3522 drivers/input/mouse/psmouse-base.o File size After adding 'const': text data bss dec hex filename 12914 676 12 13602 3522 drivers/input/mouse/psmouse-base.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: elantech - constify attribute_group structuresArvind Yadav1-1/+1
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 16815 1424 0 18239 473f drivers/input/mouse/elantech.o File size After adding 'const': text data bss dec hex filename 16879 1360 0 18239 473f drivers/input/mouse/elantech.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: gpio_keys - constify attribute_group structuresArvind Yadav1-1/+1
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 5693 464 0 6157 180d drivers/input/keyboard/gpio_keys.o File size After adding 'const': text data bss dec hex filename 5749 400 0 6149 1805 drivers/input/keyboard/gpio_keys.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: yealink - constify attribute_group structuresArvind Yadav1-1/+1
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 6039 944 0 6983 1b47 drivers/input/misc/yealink.o File size After adding 'const': text data bss dec hex filename 6103 880 0 6983 1b47 drivers/input/misc/yealink.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Henk Vergonet <henk.vergonet@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: ims-pcu - constify attribute_group structuresArvind Yadav1-2/+2
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 13547 1600 0 15147 3b2b drivers/input/misc/ims-pcu.o File size After adding 'const': text data bss dec hex filename 13675 1472 0 15147 3b2b drivers/input/misc/ims-pcu.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: synaptics-rmi4 - constify attribute_group structures in F01Arvind Yadav1-1/+1
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 4777 480 0 5257 1489 drivers/input/rmi4/rmi_f01.o File size After adding 'const': text data bss dec hex filename 4817 416 0 5233 1471 drivers/input/rmi4/rmi_f01.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: synaptics-rmi4 - constify attribute_group structures in F34Arvind Yadav1-1/+1
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 5287 448 0 5735 1667 drivers/input/rmi4/rmi_f34.o File size After adding 'const': text data bss dec hex filename 5339 384 0 5723 165b drivers/input/rmi4/rmi_f34.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: constify attribute_group structuresArvind Yadav1-3/+3
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 17755 1312 16 19083 4a8b drivers/input/input.o File size After adding 'const': text data bss dec hex filename 17947 1120 16 19083 4a8b drivers/input/input.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: aiptek - constify attribute_group structuresArvind Yadav1-1/+1
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 9941 1560 0 11501 2ced drivers/input/tablet/aiptek.o File size After adding 'const': text data bss dec hex filename 10005 1496 0 11501 2ced drivers/input/tablet/aiptek.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: serio - constify attribute_group structuresArvind Yadav1-2/+2
attribute_groups are not supposed to change at runtime. All functions working with attribute_groups provided by <linux/sysfs.h> work with const attribute_group. So mark the non-const structs as const. File size before: text data bss dec hex filename 6862 1008 4 7874 1ec2 drivers/input/serio/serio.o File size After adding 'const': text data bss dec hex filename 6990 880 4 7874 1ec2 drivers/input/serio/serio.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-12Input: i8042 - fix crash at boot timeChen Hong1-3/+9
The driver checks port->exists twice in i8042_interrupt(), first when trying to assign temporary "serio" variable, and second time when deciding whether it should call serio_interrupt(). The value of port->exists may change between the 2 checks, and we may end up calling serio_interrupt() with a NULL pointer: BUG: unable to handle kernel NULL pointer dereference at 0000000000000050 IP: [<ffffffff8150feaf>] _spin_lock_irqsave+0x1f/0x40 PGD 0 Oops: 0002 [#1] SMP last sysfs file: CPU 0 Modules linked in: Pid: 1, comm: swapper Not tainted 2.6.32-358.el6.x86_64 #1 QEMU Standard PC (i440FX + PIIX, 1996) RIP: 0010:[<ffffffff8150feaf>] [<ffffffff8150feaf>] _spin_lock_irqsave+0x1f/0x40 RSP: 0018:ffff880028203cc0 EFLAGS: 00010082 RAX: 0000000000010000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000282 RSI: 0000000000000098 RDI: 0000000000000050 RBP: ffff880028203cc0 R08: ffff88013e79c000 R09: ffff880028203ee0 R10: 0000000000000298 R11: 0000000000000282 R12: 0000000000000050 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000098 FS: 0000000000000000(0000) GS:ffff880028200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000050 CR3: 0000000001a85000 CR4: 00000000001407f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process swapper (pid: 1, threadinfo ffff88013e79c000, task ffff88013e79b500) Stack: ffff880028203d00 ffffffff813de186 ffffffffffffff02 0000000000000000 <d> 0000000000000000 0000000000000000 0000000000000000 0000000000000098 <d> ffff880028203d70 ffffffff813e0162 ffff880028203d20 ffffffff8103b8ac Call Trace: <IRQ> [<ffffffff813de186>] serio_interrupt+0x36/0xa0 [<ffffffff813e0162>] i8042_interrupt+0x132/0x3a0 [<ffffffff8103b8ac>] ? kvm_clock_read+0x1c/0x20 [<ffffffff8103b8b9>] ? kvm_clock_get_cycles+0x9/0x10 [<ffffffff810e1640>] handle_IRQ_event+0x60/0x170 [<ffffffff8103b154>] ? kvm_guest_apic_eoi_write+0x44/0x50 [<ffffffff810e3d8e>] handle_edge_irq+0xde/0x180 [<ffffffff8100de89>] handle_irq+0x49/0xa0 [<ffffffff81516c8c>] do_IRQ+0x6c/0xf0 [<ffffffff8100b9d3>] ret_from_intr+0x0/0x11 [<ffffffff81076f63>] ? __do_softirq+0x73/0x1e0 [<ffffffff8109b75b>] ? hrtimer_interrupt+0x14b/0x260 [<ffffffff8100c1cc>] ? call_softirq+0x1c/0x30 [<ffffffff8100de05>] ? do_softirq+0x65/0xa0 [<ffffffff81076d95>] ? irq_exit+0x85/0x90 [<ffffffff81516d80>] ? smp_apic_timer_interrupt+0x70/0x9b [<ffffffff8100bb93>] ? apic_timer_interrupt+0x13/0x20 To avoid the issue let's change the second check to test whether serio is NULL or not. Also, let's take i8042_lock in i8042_start() and i8042_stop() instead of trying to be overly smart and using memory barriers. Signed-off-by: Chen Hong <chenhong3@huawei.com> [dtor: take lock in i8042_start()/i8042_stop()] Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-09Input: gpio_keys - handle the missing key press event in resume phaseJoseph Lo1-1/+16
The GPIO key press event might be missed in the resume phase, if the key had been released before the system had been resumed to the stage that it could capture the press event. So we simulate the wakeup key press event in case the key had been released by the time we got interrupt handler to run. Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-09Input: xen-kbdfront - add multi-touch supportOleksandr Andrushchenko1-40/+179
Extend xen_kbdfront to provide multi-touch support to unprivileged domains. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> [dtor: factor out various sub-protocols - multitouch, single touch, keys] Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-07-01Merge tag 'pinctrl-v4.12-4' of ↵Linus Torvalds1-40/+4
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pinctrl fix from Linus Walleij: "Brian noticed that this regression has not got a proper fix for the entire merge window and consequently we need to revert the offending commit. It's part of the RT-mainstream work, the dance goes like this, two steps forward, one step back. Summary: - A last fix for v4.12, an IRQ problem reported early in the merge window appears not to have been properly fixed, so the offending commit will be reverted and we will find the proper fix for v4.13. Hopefully" * tag 'pinctrl-v4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: Revert "pinctrl: rockchip: avoid hardirq-unsafe functions in irq_chip"
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