linux-toradex.git/drivers/input/keyboard/cypress-sf.c, branch v6.11

Input: drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-13T22:43:19+00:00

These drivers don't use the driver_data member of struct i2c_device_id,
so don't explicitly initialize this member.

This prepares putting driver_data in an anonymous union which requires
either no initialization or named designators. But it's also a nice
cleanup on its own.

While add it, also remove commas after the sentinel entries.

Signed-off-by: Uwe Kleine-König 
Link: https://lore.kernel.org/r/20240509174158.2211071-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Dmitry Torokhov

Input: Switch i2c drivers back to use .probe()

2023-05-17T16:59:11+00:00

After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") convert
back to (the new) .probe() to be able to eventually drop .probe_new() from
struct i2c_driver.

Signed-off-by: Uwe Kleine-König 
Link: https://lore.kernel.org/r/20230517164645.162294-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Dmitry Torokhov

Input: cypress-sf - switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()

2022-12-07T21:26:46+00:00

SIMPLE_DEV_PM_OPS() is deprecated as it requires explicit protection
against unused function warnings.  The new combination of pm_sleep_ptr()
and DEFINE_SIMPLE_DEV_PM_OPS() allows the compiler to see the functions,
thus suppressing the warning, but still allowing the unused code to be
removed. Thus also drop the __maybe_unused markings.

Signed-off-by: Jonathan Cameron 
Link: https://lore.kernel.org/r/20221204180841.2211588-5-jic23@kernel.org
Signed-off-by: Dmitry Torokhov

Input: cypress-sf - register a callback to disable the regulators

2022-04-09T02:34:46+00:00

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]  
[   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 
Link: https://lore.kernel.org/r/20220409022629.3493557-1-zheyuma97@gmail.com
Signed-off-by: Dmitry Torokhov

Input: cypress-sf - add Cypress StreetFighter touchkey driver

2021-09-10T05:26:23+00:00

This adds support for Cypress StreetFighter touchkey controllers such
as sf3155. This driver supports managing regulators and generating
input events.

Due to lack of documentation, this driver is entirely based on
information gathered from a driver written for an old Android kernel
fork[1][2].

[1] https://github.com/LineageOS/android_kernel_xiaomi_msm8996/blob/lineage-18.1/drivers/input/touchscreen/cyttsp_button.c
[2] https://github.com/LineageOS/android_kernel_xiaomi_msm8996/blob/lineage-18.1/arch/arm/boot/dts/qcom/a4-msm8996-mtp.dtsi#L291-L314

Signed-off-by: Yassine Oudjana 
Link: https://lore.kernel.org/r/20210907174341.422013-2-y.oudjana@protonmail.com
Signed-off-by: Dmitry Torokhov