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Prepare input updates for 5.19 merge window.
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The commit 26623eea0da3 attempted to deal with potential leak of runtime
PM counter when opening the touchscreen device, however it ended up
erroneously dropping the counter in the case of successfully enabling the
device.
Let's address this by using pm_runtime_resume_and_get() and then executing
pm_runtime_put_sync() only when we fail to send "sense on" command to the
device.
Fixes: 26623eea0da3 ("Input: stmfts - fix reference leak in stmfts_input_open")
Reported-by: Pavel Machek <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>
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gpio_keys module can either accept gpios or interrupts. The module
initializes delayed work in case of gpios only and is only used if
debounce timer is not used, so make sure cancel_delayed_work_sync()
is called only when its gpio-backed and debounce_use_hrtimer is false.
This fixes the issue seen below when the gpio_keys module is unloaded and
an interrupt pin is used instead of GPIO:
[ 360.297569] ------------[ cut here ]------------
[ 360.302303] WARNING: CPU: 0 PID: 237 at kernel/workqueue.c:3066 __flush_work+0x414/0x470
[ 360.310531] Modules linked in: gpio_keys(-)
[ 360.314797] CPU: 0 PID: 237 Comm: rmmod Not tainted 5.18.0-rc5-arm64-renesas-00116-g73636105874d-dirty #166
[ 360.324662] Hardware name: Renesas SMARC EVK based on r9a07g054l2 (DT)
[ 360.331270] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 360.338318] pc : __flush_work+0x414/0x470
[ 360.342385] lr : __cancel_work_timer+0x140/0x1b0
[ 360.347065] sp : ffff80000a7fba00
[ 360.350423] x29: ffff80000a7fba00 x28: ffff000012b9c5c0 x27: 0000000000000000
[ 360.357664] x26: ffff80000a7fbb80 x25: ffff80000954d0a8 x24: 0000000000000001
[ 360.364904] x23: ffff800009757000 x22: 0000000000000000 x21: ffff80000919b000
[ 360.372143] x20: ffff00000f5974e0 x19: ffff00000f5974e0 x18: ffff8000097fcf48
[ 360.379382] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000053f40
[ 360.386622] x14: ffff800009850e88 x13: 0000000000000002 x12: 000000000000a60c
[ 360.393861] x11: 000000000000a610 x10: 0000000000000000 x9 : 0000000000000008
[ 360.401100] x8 : 0101010101010101 x7 : 00000000a473c394 x6 : 0080808080808080
[ 360.408339] x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff80000919b458
[ 360.415578] x2 : ffff8000097577f0 x1 : 0000000000000001 x0 : 0000000000000000
[ 360.422818] Call trace:
[ 360.425299] __flush_work+0x414/0x470
[ 360.429012] __cancel_work_timer+0x140/0x1b0
[ 360.433340] cancel_delayed_work_sync+0x10/0x18
[ 360.437931] gpio_keys_quiesce_key+0x28/0x58 [gpio_keys]
[ 360.443327] devm_action_release+0x10/0x18
[ 360.447481] release_nodes+0x8c/0x1a0
[ 360.451194] devres_release_all+0x90/0x100
[ 360.455346] device_unbind_cleanup+0x14/0x60
[ 360.459677] device_release_driver_internal+0xe8/0x168
[ 360.464883] driver_detach+0x4c/0x90
[ 360.468509] bus_remove_driver+0x54/0xb0
[ 360.472485] driver_unregister+0x2c/0x58
[ 360.476462] platform_driver_unregister+0x10/0x18
[ 360.481230] gpio_keys_exit+0x14/0x828 [gpio_keys]
[ 360.486088] __arm64_sys_delete_module+0x1e0/0x270
[ 360.490945] invoke_syscall+0x40/0xf8
[ 360.494661] el0_svc_common.constprop.3+0xf0/0x110
[ 360.499515] do_el0_svc+0x20/0x78
[ 360.502877] el0_svc+0x48/0xf8
[ 360.505977] el0t_64_sync_handler+0x88/0xb0
[ 360.510216] el0t_64_sync+0x148/0x14c
[ 360.513930] irq event stamp: 4306
[ 360.517288] hardirqs last enabled at (4305): [<ffff8000080b0300>] __cancel_work_timer+0x130/0x1b0
[ 360.526359] hardirqs last disabled at (4306): [<ffff800008d194fc>] el1_dbg+0x24/0x88
[ 360.534204] softirqs last enabled at (4278): [<ffff8000080104a0>] _stext+0x4a0/0x5e0
[ 360.542133] softirqs last disabled at (4267): [<ffff8000080932ac>] irq_exit_rcu+0x18c/0x1b0
[ 360.550591] ---[ end trace 0000000000000000 ]---
Signed-off-by: Lad Prabhakar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Spelling mistake (triple letters) in comment.
Detected with the help of Coccinelle.
Signed-off-by: Julia Lawall <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Merge changes to ChromeOS EC Keyboard driver.
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Currently, when trying to suspend and resume with VirtualPS/2 VMMouse
there is an error message after resuming:
psmouse serio1: vmmouse: Unable to re-enable mouse when reconnecting, err: -6
and the mouse will no longer be operable, requiring full rescan to find a
another driver to use for the port.
This error is due to QEMU still generating PS2 events which the kernel is
not consuming until resume time, where they interfere with mouse
identification and ultimately resulting in an error getting
VMMOUSE_VERSION_ID.
Test scenario:
1) start virtual machine with qemu command "vmport=on"
2) click suspend botton to enter suspend mode
3) resume and observe the error message in the kernel logs
Let's fix this by disabling the vmmouse in its reset handler. This will
notify qemu to stop vmmouse and remove the handler.
Signed-off-by: Zongmin Zhou<[email protected]>
Reviewed-by: Zack Rusin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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This uses anyOf which is wrong. Use oneOf and move the items under the
description. Also drop allOf for $ref.
Reported-by: Douglas Anderson <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>
Link: https://lore.kernel.org/r/CAE-0n50KE9bkqZvCOLtCGiq3g1jYhK7zpVcVFBzinaguNhNaPw@mail.gmail.com
Signed-off-by: Dmitry Torokhov <[email protected]>
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Rename ili251x_hardware_reset() to ili210x_hardware_reset(), change its
parameter from struct device * to struct gpio_desc *, and use it as one
single consistent reset implementation all over the driver. Also increase
the minimum reset duration to 12ms, to make sure the reset is really
within the spec.
Signed-off-by: Marek Vasut <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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According to Ilitek "231x & ILI251x Programming Guide" Version: 2.30
"2.1. Power Sequence", "T4 Chip Reset and discharge time" is minimum
10ms and "T2 Chip initial time" is maximum 150ms. Adjust the reset
timings such that T4 is 12ms and T2 is 160ms to fit those figures.
This prevents sporadic touch controller start up failures when some
systems with at least ILI251x controller boot, without this patch
the systems sometimes fail to communicate with the touch controller.
Fixes: 201f3c803544c ("Input: ili210x - add reset GPIO support")
Signed-off-by: Marek Vasut <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Cc: [email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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If the device is a detachable (and therefore lacks full keyboard), we may
still want to load this driver because the device might have some other
buttons or switches (e.g. volume and power buttons or a tablet mode
switch). In such case we do not want to register the "main" keyboard device
to allow userspace detect when the detachable keyboard is disconnected and
adjust the system behavior for the tablet mode.
Originally it was suggested to simply skip keyboard registration if row and
columns properties didn't exist, but that approach did not convey the
intent strongly enough and also had a slight problem for migrating existing
DTBs without updating the kernel first, so it was decided to introduce new
google,cros-ec-keyb-switches to explicitly mark devices that only have
axillary buttons and switches.
Reviewed-by: Douglas Anderson <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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If the ChromeOS board is a detachable, this cros-ec-keyb device won't
have a matrix keyboard but it may have some button switches, e.g. volume
buttons and power buttons. The driver still registers a keyboard though
and that leads to userspace confusion around where the keyboard is.
We tried to work around this by only registering the keyboard device when
rows/columns properties were specified for the device, but that led to
another problem where removing the rows/columns properties breaks the
existing binding. Technically before that commit the rows/columns
properties were required, otherwise the driver would fail to probe.
Removing the properties from devicetrees makes the driver fail to probe
unless the corresponding driver patch is present. Furthermore, this makes
requiring matrix keyboard properties for devices that really have a
keyboard impossible because the compatible drives the schema and now the
properties are optional.
Add a more specific compatible for this type of device that indicates to
the OS that there are only switches and no matrix keyboard present.
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: Douglas Anderson <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Flushing system-wide workqueues is dangerous and will be forbidden.
Replace system_wq with local psmouse_wq.
Signed-off-by: Tetsuo Handa <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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clk_disable_unprepare() already checks NULL by using IS_ERR_OR_NULL.
Remove unneeded NULL check for kp->clk.
Signed-off-by: Wan Jiabing <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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of_find_node_by_path() calls of_find_node_opts_by_path(),
which returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.
Add missing of_node_put() to avoid refcount leak.
Fixes: 9c1a5077fdca ("input: Rewrite sparcspkr device probing.")
Signed-off-by: Miaoqian Lin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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This LRADC variant uses the same 3/4*AVCC reference voltage as the A83T
variant. The R329 and D1 LRADCs appear to be identical, so D1 support is
accomplished through having the R329 LRADC as a fallback compatible.
Signed-off-by: Samuel Holland <[email protected]>
Acked-by: Jernej Skrabec <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Until the R329, the LRADC hardware was always active. Now it requires
enabling a clock gate and deasserting a reset line. Add support for this
variant of the hardware.
Signed-off-by: Samuel Holland <[email protected]>
Acked-by: Jernej Skrabec <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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The R329 and D1 SoCs each contain an LRADC with a programming interface
compatible to earlier LRADCs. However, the LRADC now has its own clock
gate and reset line, instead of being always active.
To support this, add clock/reset properties to the binding, and require
them for the variant in the new SoCs.
Acked-by: Maxime Ripard <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Signed-off-by: Samuel Holland <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Fengping has no longer interest and time to maintain this driver so he
agreed to transfer maintainership over to me.
Signed-off-by: Mattijs Korpershoek <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Allow the driver to wake the system on key press if the "wakeup-source"
property is provided in the device tree. Using the LRADC as a wakeup
source requires keeping the AVCC domain active during sleep. Since this
has a nontrivial impact on power consumption (sometimes doubling it),
disable the LRADC wakeup source by default.
Signed-off-by: Ondrej Jirman <[email protected]>
Acked-by: Jernej Skrabec <[email protected]>
Signed-off-by: Samuel Holland <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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The status of the keys connected to the KPDPWR_N and RESIN_N pins
is identified by reading corresponding bits in the interrupt real
time status register. If the status has changed by the time that
the interrupt is handled then a press event will be missed.
Maintain a last known status variable to find unbalanced release
events and simulate press events for each accordingly.
Signed-off-by: David Collins <[email protected]>
Signed-off-by: Anjelique Melendez <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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On certain PMICs, an unexpected assertion of KPDPWR_DEB (the
positive logic hardware debounced power key signal) may be seen
during the falling edge of KPDPWR_N (i.e. a power key press) when
it occurs close to the rising edge of SLEEP_CLK. This then
triggers a spurious KPDPWR interrupt.
Handle this issue by adding software debouncing support to ignore
key events that occur within the hardware debounce delay after the
most recent key release event.
Signed-off-by: David Collins <[email protected]>
Signed-off-by: Anjelique Melendez <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Currently, PON address is read from the "reg" property. For PON GEN3,
which starts with PMK8350, the "reg" property will have both the PON
HLOS and PON PBS addesses defined. Add support so that all PON
generations can be configured.
Reviewed-by: Stephen Boyd <[email protected]>
Signed-off-by: Anjelique Melendez <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Currently, error message reads "failed to set debounce". However,
code is attempting to read revision not set debounce. Fix this.
Reviewed-by: Stephen Boyd <[email protected]>
Signed-off-by: Anjelique Melendez <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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All work currently pending will be done first by calling destroy_workqueue,
so there is unnecessary to flush it explicitly.
Reported-by: Zeal Robot <[email protected]>
Signed-off-by: ran jianping <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Use the devm_platform_ioremap_resource() helper instead of calling
platform_get_resource() and devm_ioremap_resource() separately. This
makes the code simpler without functional changes.
Reported-by: Zeal Robot <[email protected]>
Signed-off-by: Lv Ruyi <[email protected]>
Acked-by: Alexander Sverdlin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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This patch adds the driver for the Sense HAT joystick. It outputs BTN_DPAD
key events when moved in any of the four directions and the BTN_SELECT
event when depressed.
Co-developed-by: Daniel Bauman <[email protected]>
Signed-off-by: Daniel Bauman <[email protected]>
Co-developed-by: Mwesigwa Guma <[email protected]>
Signed-off-by: Mwesigwa Guma <[email protected]>
Co-developed-by: Joel Savitz <[email protected]>
Signed-off-by: Joel Savitz <[email protected]>
Signed-off-by: Charles Mirabile <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Since version 5.13, the standard syscon bindings have been added
to all clps711x DT nodes, so we can now use the more general
syscon_regmap_lookup_by_phandle function to get the syscon pointer.
Signed-off-by: Alexander Shiyan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Remove unneeded variable used to store return value.
Reported-by: Zeal Robot <[email protected]>
Signed-off-by: Changcheng Deng <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Variable ret is being assigned a value that is never read, it is
being re-assigned again in either path of the if statement. The
assignment is redundant and can be removed.
Cleans up clang scan build warning:
Although the value stored to 'ret' is used in the enclosing expression,
the value is never actually read from 'ret' [deadcode.DeadStores]
Signed-off-by: Colin Ian King <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Select callers of iqs7222_parse_props() do not expect a child node
to be derived and returned via pointer. As such, these callers set
**child_node to NULL. However, this pointer is dereferenced in all
cases.
To solve this problem, dereference the pointer only for cases that
expect a child node in the first place. In these cases, the caller
provides a valid pointer.
Fixes: e505edaedcb9 ("Input: add support for Azoteq IQS7222A/B/C")
Reported-by: Dan Carpenter <[email protected]>
Signed-off-by: Jeff LaBundy <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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If fwnode_property_count_u32() returns a negative error code then,
because of type promotion, the "count > ARRAY_SIZE(pins)" condition
will be true. The negative "count" is type promoted to a high unsigned
size_t value.
That means the "else if (count < 0)" condition will always be false and
we don't print that error message or propagate the error code from
fwnode_property_count_u32() as intended.
Fix this by re-ordering the checks so that we check for negative first.
Fixes: e505edaedcb9 ("Input: add support for Azoteq IQS7222A/B/C")
Signed-off-by: Dan Carpenter <[email protected]>
Link: https://lore.kernel.org/r/20220412153954.GA15406@kili
Signed-off-by: Dmitry Torokhov <[email protected]>
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Add keycodes that are used by marine navigation devices.
Signed-off-by: Shelby Heffron <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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If the device is already in a runtime PM enabled state
pm_runtime_get_sync() will return 1, so a test for negative
value should be used to check for errors.
Fixes: f77621cc640a ("Input: omap-keypad - dynamically handle register offsets")
Signed-off-by: Miaoqian Lin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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When the driver fails to probe, we will get the following splat:
[ 19.311970] ------------[ cut here ]------------
[ 19.312566] WARNING: CPU: 3 PID: 375 at drivers/regulator/core.c:2257 _regulator_put+0x3ec/0x4e0
[ 19.317591] RIP: 0010:_regulator_put+0x3ec/0x4e0
[ 19.328831] Call Trace:
[ 19.329112] <TASK>
[ 19.329369] regulator_bulk_free+0x82/0xe0
[ 19.329860] devres_release_group+0x319/0x3d0
[ 19.330357] i2c_device_probe+0x766/0x940
Fix this by adding a callback that will deal with the disabling when the
driver fails to probe.
Signed-off-by: Zheyu Ma <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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This patch adds support for the Azoteq IQS7222A/B/C family of
capacitive touch controllers.
Signed-off-by: Jeff LaBundy <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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This patch adds bindings for the Azoteq IQS7222A/B/C family of
capacitive touch controllers.
Signed-off-by: Jeff LaBundy <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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The mmio base address is used for the only purpose of initializing
regmap for this driver, hence it's not necessary to have it in the
main driver structure, as it is used only in the probe() callback.
Move it local to function mt6779_keypad_pdrv_probe().
This commit brings no functional changes.
Signed-off-by: AngeloGioacchino Del Regno <[email protected]>
Reviewed-by: Mattijs Korpershoek <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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This reverts commit 37ef4c19b4c659926ce65a7ac709ceaefb211c40.
The touchpad present in the Dell Precision 7550 and 7750 laptops
reports a HID_DG_BUTTONTYPE of type MT_BUTTONTYPE_CLICKPAD. However,
the device is not a clickpad, it is a touchpad with physical buttons.
In order to fix this issue, a quirk for the device was introduced in
libinput [1] [2] to disable the INPUT_PROP_BUTTONPAD property:
[Precision 7x50 Touchpad]
MatchBus=i2c
MatchUdevType=touchpad
MatchDMIModalias=dmi:*svnDellInc.:pnPrecision7?50*
AttrInputPropDisable=INPUT_PROP_BUTTONPAD
However, because of the change introduced in 37ef4c19b4 ("Input: clear
BTN_RIGHT/MIDDLE on buttonpads") the BTN_RIGHT key bit is not mapped
anymore breaking the device right click button and making impossible to
workaround it in user space.
In order to avoid breakage on other present or future devices, revert
the patch causing the issue.
Signed-off-by: José Expósito <[email protected]>
Reviewed-by: Hans de Goede <[email protected]>
Acked-by: Peter Hutterer <[email protected]>
Acked-by: Benjamin Tissoires <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Prepare input updates for 5.18 merge window.
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Variable z is being assigned a value that is never read, the
variable is redundant and can be removed.
Cleans up clang scan build warning:
drivers/input/joystick/adi.c:139:6: warning: Although the
value stored to 'z' is used in the enclosing expression,
the value is never actually read from 'z' [deadcode.DeadStores]
Signed-off-by: Colin Ian King <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Add support for the IST3038C touchscreen IC from Imagis, based on
downstream driver. The driver supports multi-touch (10 touch points)
The IST3038C IC supports touch keys, but the support isn't added
because the touch screen used for testing doesn't utilize touch keys.
Looking at the downstream driver, it is possible to add support
for other Imagis ICs of IST30**C series.
Reviewed-by: Jeff LaBundy <[email protected]>
Signed-off-by: Markuss Broks <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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This patch adds device-tree bindings for the Imagis
IST3038C touch screen IC.
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Markuss Broks <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Confirmed LEN2064 on my P14s works with psmouse.synaptics_intertouch=1
By all accounts T14 and P14s are the same hardware which only differ by
model identifier.
Signed-off-by: Matthew Haughton <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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pm_runtime_get_sync() will increment pm usage counter even it
failed. Forgetting to call pm_runtime_put_noidle will result
in reference leak in stmfts_input_open, so we should fix it.
Signed-off-by: Zheng Yongjun <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Update input_set_capability() to prevent kernel panic in case the
event code exceeds the bitmap for the given event type.
Suggested-by: Tomasz Moń <[email protected]>
Signed-off-by: Jeff LaBundy <[email protected]>
Reviewed-by: Tomasz Moń <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Both iqs5xx_axis_init() and iqs5xx_irq() already define a local
input_dev pointer 'input'. Use this instead of iqs5xx->input so
as to make the code a bit smaller.
Signed-off-by: Jeff LaBundy <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
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Signed-off-by: Linus Torvalds <[email protected]>
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Pull kvm fix from Paolo Bonzini:
"Fix for the SLS mitigation, which makes a 'SETcc/RET' pair grow
to 'SETcc/RET/INT3'.
This doesn't fit in 4 bytes any more, so the alignment has to
change to 8 for this case"
* tag 'for-linus-5.17' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm/emulate: Fix SETcc emulation function offsets with SLS
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
"Two driver fixes:
- a fix for zinitix touchscreen to properly report contacts
- a fix for aiptek tablet driver to be more resilient to devices with
incorrect descriptors"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: aiptek - properly check endpoint type
Input: zinitix - do not report shadow fingers
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The commit in Fixes started adding INT3 after RETs as a mitigation
against straight-line speculation.
The fastop SETcc implementation in kvm's insn emulator uses macro magic
to generate all possible SETcc functions and to jump to them when
emulating the respective instruction.
However, it hardcodes the size and alignment of those functions to 4: a
three-byte SETcc insn and a single-byte RET. BUT, with SLS, there's an
INT3 that gets slapped after the RET, which brings the whole scheme out
of alignment:
15: 0f 90 c0 seto %al
18: c3 ret
19: cc int3
1a: 0f 1f 00 nopl (%rax)
1d: 0f 91 c0 setno %al
20: c3 ret
21: cc int3
22: 0f 1f 00 nopl (%rax)
25: 0f 92 c0 setb %al
28: c3 ret
29: cc int3
and this explodes like this:
int3: 0000 [#1] PREEMPT SMP PTI
CPU: 0 PID: 2435 Comm: qemu-system-x86 Not tainted 5.17.0-rc8-sls #1
Hardware name: Dell Inc. Precision WorkStation T3400 /0TP412, BIOS A14 04/30/2012
RIP: 0010:setc+0x5/0x8 [kvm]
Code: 00 00 0f 1f 00 0f b6 05 43 24 06 00 c3 cc 0f 1f 80 00 00 00 00 0f 90 c0 c3 cc 0f \
1f 00 0f 91 c0 c3 cc 0f 1f 00 0f 92 c0 c3 cc <0f> 1f 00 0f 93 c0 c3 cc 0f 1f 00 \
0f 94 c0 c3 cc 0f 1f 00 0f 95 c0
Call Trace:
<TASK>
? x86_emulate_insn [kvm]
? x86_emulate_instruction [kvm]
? vmx_handle_exit [kvm_intel]
? kvm_arch_vcpu_ioctl_run [kvm]
? kvm_vcpu_ioctl [kvm]
? __x64_sys_ioctl
? do_syscall_64
? entry_SYSCALL_64_after_hwframe
</TASK>
Raise the alignment value when SLS is enabled and use a macro for that
instead of hard-coding naked numbers.
Fixes: e463a09af2f0 ("x86: Add straight-line-speculation mitigation")
Reported-by: Jamie Heilman <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Acked-by: Peter Zijlstra (Intel) <[email protected]>
Tested-by: Jamie Heilman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[Add a comment and a bit of safety checking, since this is going to be changed
again for IBT support. - Paolo]
Signed-off-by: Paolo Bonzini <[email protected]>
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