Commit Graph

12 Commits

Author SHA1 Message Date
Jesse Taube
322a552e19 Input: cap11xx - add support for cap1206
According to the datasheet "The CAP1206 is pin- and register-compatible
with the CAP1106, with the exception of the GAIN[1:0] bits and ALT_POL
bit"(57). So, this patch aims to disable them as they are no longer
used.

Signed-off-by: Jesse Taube <mr.bossman075@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2021-11-02 17:03:04 -07:00
Thomas Gleixner
d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Dmitry Torokhov
628442880a Input: cap11xx - switch to using set_brightness_blocking()
Updating LED state requires access to regmap and therefore we may sleep,
so we could not do that directly form set_brightness() method.
Historically we used private work to adjust the brightness, but with the
introduction of set_brightness_blocking() we no longer need it.

As a bonus, not having our own work item means we do not have
use-after-free issue as we neglected to cancel outstanding work on
driver unbind.

Reported-by: Sven Van Asbroeck <thesven73@gmail.com>
Reviewed-by: Sven Van Asbroeck <TheSven73@googlemail.com>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2019-02-09 08:56:56 -08:00
Kees Cook
0ed2dd03b9 treewide: Use struct_size() for devm_kmalloc() and friends
Replaces open-coded struct size calculations with struct_size() for
devm_*, f2fs_*, and sock_* allocations. Automatically generated (and
manually adjusted) from the following Coccinelle script:

// Direct reference to struct field.
@@
identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc";
expression HANDLE;
expression GFP;
identifier VAR, ELEMENT;
expression COUNT;
@@

- alloc(HANDLE, sizeof(*VAR) + COUNT * sizeof(*VAR->ELEMENT), GFP)
+ alloc(HANDLE, struct_size(VAR, ELEMENT, COUNT), GFP)

// mr = kzalloc(sizeof(*mr) + m * sizeof(mr->map[0]), GFP_KERNEL);
@@
identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc";
expression HANDLE;
expression GFP;
identifier VAR, ELEMENT;
expression COUNT;
@@

- alloc(HANDLE, sizeof(*VAR) + COUNT * sizeof(VAR->ELEMENT[0]), GFP)
+ alloc(HANDLE, struct_size(VAR, ELEMENT, COUNT), GFP)

// Same pattern, but can't trivially locate the trailing element name,
// or variable name.
@@
identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc";
expression HANDLE;
expression GFP;
expression SOMETHING, COUNT, ELEMENT;
@@

- alloc(HANDLE, sizeof(SOMETHING) + COUNT * sizeof(ELEMENT), GFP)
+ alloc(HANDLE, CHECKME_struct_size(&SOMETHING, ELEMENT, COUNT), GFP)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-06 11:15:43 -07:00
Guenter Roeck
666c0b8366 Input: keyboard - drop calls to platform_set_drvdata and i2c_set_clientdata
There is no call to i2c_get_clientdata(), platform_get_drvdata(),
or dev_get_drvdata() in any of the drivers in this patch.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-01-21 23:51:49 -08:00
Amitoj Kaur Chawla
497e1b3f6b Input: cap11xx - add missing of_node_put
for_each_child_of_node performs an of_node_get on each iteration, so
to break out of the loop an of_node_put is required.

Found using Coccinelle.

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-27 15:55:48 -08:00
Matt Ranostay
efe3b616f8 Input: cap11xx - add LED support
Several cap11xx variants have LEDs that be can be controlled; let's plug
the driver into the LED subsystem.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-08-16 23:22:01 -07:00
Krzysztof Kozlowski
800e3b9a68 Input: drop owner assignment from i2c_driver
i2c_driver does not need to set an owner because i2c_register_driver()
will set it.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-07-17 16:57:00 -07:00
Axel Lin
e297d7bbf6 Input: cap11xx - remove wrong and unneeded cap11xx modalias
This is a I2C driver, so it's wrong to use platform prefix for the
modalias.  We have all needed i2c aliases coming form MODULE_DEVICE_TABLE,
so let's remove the wrong and unneeded cap11xx modalias.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Daniel Mack <linux@zonque.org>
Reviewed-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-01 11:21:23 -08:00
Matt Ranostay
6bdd2fd1ed Input: cap11xx - support for irq-active-high option
Some applications need to use the irq-active-high push-pull option.
This allows it be enabled in the device tree child node.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-11-02 00:09:11 -07:00
Matt Ranostay
7609a5e973 Input: cap11xx - add support for various cap11xx devices
There are variants of the cap11xx device with a varying number of
capacitance detection channels.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-11-02 00:09:10 -07:00
Matt Ranostay
c77fd0a42b Input: rename cap1106 driver to cap11xx
There are several devices in cap11xx family besides cap1106. The driver can
be made to support all of them, so let's give it more generic name.

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-11-02 00:09:10 -07:00