linux/drivers/input
Jeff LaBundy bbd16b0d83 Input: iqs7222 - drop unused device node references
Each call to device/fwnode_get_named_child_node() must be matched
with a call to fwnode_handle_put() once the corresponding node is
no longer in use. This ensures a reference count remains balanced
in the case of dynamic device tree support.

Currently, the driver never calls fwnode_handle_put(). Solve this
problem by moving the node handling from iqs7222_parse_props() to
the new iqs7222_parse_reg_grp(), leaving the former to do nothing
but parse properties. The latter then manages the reference count
in a single location and consistent fashion.

This change drastically simplifies iqs7222_parse_all(), which can
then call iqs7222_parse_reg_grp() on every register group without
having to treat each register group differently.

For nested event nodes, common parsing code has been factored out
to the new iqs7222_parse_event() so as to allow the event node to
be dropped from as few locations as possible.

As part of this refactor, the 'linux,code' property has been made
optional. This enables applications that define an event with the
sole purpose of enabling a GPIO.

Fixes: e505edaedc ("Input: add support for Azoteq IQS7222A/B/C")
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/Y1SRJIQ3WPwNpC0K@nixie71
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
History 2022-10-24 05:09:23 -07:00
..
gameport input: drop empty comment blocks 2022-09-29 16:25:42 -07:00
joystick Merge branch 'next' into for-linus 2022-10-09 22:30:23 -07:00
keyboard Linux 6.1-rc1 2022-10-17 02:36:32 -07:00
misc Input: iqs7222 - drop unused device node references 2022-10-24 05:09:23 -07:00
mouse Merge branch 'next' into for-linus 2022-10-09 22:30:23 -07:00
rmi4 Input: synaptics-rmi4 - convert to use sysfs_emit() APIs 2022-09-27 09:00:41 -07:00
serio Input updates for 6.1 merge window: 2022-10-11 10:53:25 -07:00
tablet input: drop empty comment blocks 2022-09-29 16:25:42 -07:00
touchscreen Input: egalax_ts - do not hardcode interrupt trigger 2022-10-24 05:02:26 -07:00
apm-power.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
evbug.c Input: evbug - remove an empty comment block 2021-05-24 21:06:39 -07:00
evdev.c Input: evdev - per-client waitgroups 2020-10-06 18:34:15 -07:00
ff-core.c input: drop empty comment blocks 2022-09-29 16:25:42 -07:00
ff-memless.c input: drop empty comment blocks 2022-09-29 16:25:42 -07:00
input-compat.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
input-compat.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
input-core-private.h Input: deactivate MT slots when inhibiting or suspending devices 2022-07-20 11:35:13 -07:00
input-leds.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
input-mt.c Input: deactivate MT slots when inhibiting or suspending devices 2022-07-20 11:35:13 -07:00
input-poller.c Input: use input_device_enabled() 2020-12-02 22:10:33 -08:00
input-poller.h Input: add support for polling to input devices 2019-08-20 12:04:07 -07:00
input.c Input: deactivate MT slots when inhibiting or suspending devices 2022-07-20 11:35:13 -07:00
joydev.c Input: joydev - fix comment typo 2022-09-25 00:57:25 -07:00
Kconfig Input: extract ChromeOS vivaldi physmap show function 2022-03-14 21:11:09 -07:00
Makefile Input: extract ChromeOS vivaldi physmap show function 2022-03-14 21:11:09 -07:00
matrix-keymap.c Input: matrix-keymap - switch to use device_property_count_u32() 2019-08-12 00:03:13 -07:00
mousedev.c *: convert stream-like files -> stream_open, even if they use noop_llseek 2019-07-14 16:09:19 +03:00
sparse-keymap.c Input: Use fallthrough pseudo-keyword 2020-07-07 11:25:54 -07:00
touchscreen.c Input: touchscreen - avoid bitwise vs logical OR warning 2021-10-15 22:22:54 -07:00
vivaldi-fmap.c Input: extract ChromeOS vivaldi physmap show function 2022-03-14 21:11:09 -07:00