Commit Graph

173 Commits

Author SHA1 Message Date
Marc Dietrich
673f605ea7 staging/nvec: update TODO
replace old/implemented items with new todo list

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Link: https://lore.kernel.org/r/20240218212557.22836-2-marvin24@gmx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-02-19 09:46:59 +01:00
Marc Dietrich
6dde7d5fbd staging/nvec: update comment regarding udelay in the isr
Update the comment before the udelay on how to replace it.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Link: https://lore.kernel.org/r/20240218212557.22836-1-marvin24@gmx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-02-19 09:46:58 +01:00
Uwe Kleine-König
cedff4e3e2 staging: nvec_ps2: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230403154014.2564054-22-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-03 21:49:55 +02:00
Uwe Kleine-König
f1e870c45b staging: nvec_power: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230403154014.2564054-21-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-03 21:49:55 +02:00
Uwe Kleine-König
46ea323026 staging: nvec: nvec_kbd: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230403154014.2564054-20-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-03 21:49:54 +02:00
Uwe Kleine-König
398296fd50 staging: nvec: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230403154014.2564054-19-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-03 21:49:54 +02:00
Sumitra Sharma
1bd51241bd Staging: nvec: Remove macro definition to_nvec_led
Remove definition 'to_nvec_led' because it is only used once.
Rewrite the code directly in the calling function
'nvec_led_brightness_set'.

Signed-off-by: Sumitra Sharma <sumitraartsy@gmail.com>
Link: https://lore.kernel.org/r/20230322054051.GA150453@sumitra.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-22 10:19:25 +01:00
Ayan Choudhary
1b9a8d755f Staging: nvec: Fix ending in '(' error
This patch fixes the checkpatch.pl warning:

CHECK: Lines should not end with a '('
386: FILE: drivers/staging/nvec/nvec.c:386:
+		err = wait_for_completion_interruptible_timeout(

Signed-off-by: Ayan Choudhary <ayanchoudhary1025@gmail.com>
Link: https://lore.kernel.org/r/20220207133921.4287-1-ayanchoudhary1025@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 10:46:01 +01:00
Lee Jones
e950dd6bb3 staging: nvec: Fix a bunch of kernel-doc issues
Fixes the following W=1 kernel build warning(s):

 drivers/staging/nvec/nvec.c:109: warning: Function parameter or member 'events' not described in 'nvec_register_notifier'
 drivers/staging/nvec/nvec.c:136: warning: Function parameter or member 'nb' not described in 'nvec_status_notifier'
 drivers/staging/nvec/nvec.c:136: warning: Function parameter or member 'event_type' not described in 'nvec_status_notifier'
 drivers/staging/nvec/nvec.c:136: warning: Function parameter or member 'data' not described in 'nvec_status_notifier'
 drivers/staging/nvec/nvec.c:358: warning: Function parameter or member 'ev' not described in 'nvec_event_mask'
 drivers/staging/nvec/nvec.c:358: warning: Function parameter or member 'mask' not described in 'nvec_event_mask'

Cc: Marc Dietrich <marvin24@gmx.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Kernel Team <ac100@lists.lauchpad.net>
Cc: Pierre-Hugues Husson <phhusson@free.fr>
Cc: Ilya Petrov <ilya.muromec@gmail.com>
Cc: Andres Klode <jak@jak-linux.org>
Cc: ac100@lists.launchpad.net
Cc: linux-tegra@vger.kernel.org
Cc: linux-staging@lists.linux.dev
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210414181129.1628598-23-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-10 11:19:24 +02:00
Arnd Bergmann
946e2f007f staging/nvec:: avoid Wempty-body warning
This driver has a few disabled diagnostics, which can probably
just get removed, or might still be helpful:

drivers/staging/nvec/nvec_ps2.c: In function 'nvec_ps2_notifier':
drivers/staging/nvec/nvec_ps2.c:94:77: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
   94 |                         NVEC_PHD("unhandled mouse event: ", msg, msg[1] + 2);

Changing the empty macro to the usual 'do {} while (0)' at least
shuts up the compiler warnings.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210322103545.704121-2-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-22 17:05:15 +01:00
Fatih Yildirim
dc31fc6ce6 staging: nvec: minor coding style fix
Fix for the below coding style warning.
Warning: Move const after static - use 'static const int'

Signed-off-by: Fatih Yildirim <yildirim.fatih@gmail.com>
Link: https://lore.kernel.org/r/20210212073423.20562-1-yildirim.fatih@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-12 09:49:43 +01:00
Kumar Kartikeya Dwivedi
aca1bf728a staging: nvec: Switch from strlcpy to strscpy
strlcpy is marked as deprecated in Documentation/process/deprecated.rst,
and there is no functional difference when the caller expects truncation
(when not checking the return value). strscpy is relatively better as it
also avoids scanning the whole source string.

This silences the related checkpatch warnings from:
5dbdb2d87c ("checkpatch: prefer strscpy to strlcpy")

Acked-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20210131172838.146706-6-memxor@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-04 17:16:06 +01:00
Ryan Kosta
e6ac17de78 Staging: nvec: Removes repeated word typo in comment
Fix a comment typo.

Signed-off-by: Ryan Kosta <ryanpkosta@gmail.com>
Link: https://lore.kernel.org/r/20200927172855.9813-1-ryanpkosta@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-01 10:55:17 +02:00
Alexander A. Klimov
2145021c44 Staging: nvec: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200708183117.16563-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 13:52:46 +02:00
Xidong Wang
a5a9855420 staging: nvec: check return value
In nvec_kbd_probe(), the return value of devm_input_allocate_device()
should be checked before it is used.

Signed-off-by: Xidong Wang <wangxidong_97@163.com>
Link: https://lore.kernel.org/r/1576648598-12257-1-git-send-email-wangxidong_97@163.com
Acked-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-12-19 19:23:29 +01:00
Krzysztof Kozlowski
f82ea85dd7 staging: nvec: Fix Kconfig indentation
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
	$ sed -e 's/^        /\t/' -i */Kconfig

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20191120133858.13369-1-krzk@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-20 15:20:29 +01:00
Hariprasad Kelam
77b0a8412c staging: nvec: make use of devm_platform_ioremap_resource
fix below issue reported by coccicheck
drivers/staging//nvec/nvec.c:794:1-5: WARNING: Use
devm_platform_ioremap_resource for base

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Acked-by: Marc Dietrich <marvin24@gmx.de>
Link: https://lore.kernel.org/r/1567935662-8006-1-git-send-email-hariprasad.kelam@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-09-12 10:35:50 +01:00
Stephen Boyd
04d15d5cad staging: Remove dev_err() usage after platform_get_irq()
We don't need dev_err() messages when platform_get_irq() fails now that
platform_get_irq() prints an error message itself when something goes
wrong. Let's remove these prints with a simple semantic patch.

// <smpl>
@@
expression ret;
struct platform_device *E;
@@

ret =
(
platform_get_irq(E, ...)
|
platform_get_irq_byname(E, ...)
);

if ( \( ret < 0 \| ret <= 0 \) )
{
(
-if (ret != -EPROBE_DEFER)
-{ ...
-dev_err(...);
-... }
|
...
-dev_err(...);
)
...
}
// </smpl>

While we're here, remove braces on if statements that only have one
statement (manually).

Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20190730181557.90391-43-swboyd@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-30 20:50:04 +02:00
Greg Kroah-Hartman
99b75a4e32 staging: add missing SPDX lines to Kconfig files
There are a few remaining drivers/staging/*/Kconfig files that do not
have SPDX identifiers in them.  Add the correct GPL-2.0 identifier to
them to make scanning tools happy.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-03 11:10:15 +02:00
Marc Dietrich
7cc6f682ca Revert "staging: nvec: Augment TODO file with GPIO work item"
This reverts commit 5a3e59ce3a, because the
necessary changes were applied in the "staging: nvec: convert to use GPIO
descriptors" patch.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-23 18:49:51 +02:00
Marc Dietrich
40fbffd9b9 staging: nvec: convert to use GPIO descriptors
Use GPIO descriptors instead of relying on the old method.

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-23 14:38:00 +02:00
Marc Dietrich
d438179598 staging: nvec: cleanup use of dev in probe function
This cleanups the probe function a bit by using a dev variable instead
of &pdev-dev.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-23 14:38:00 +02:00
Wolfram Sang
3c31e04b83 staging: nvec: simplify getting .drvdata
We should get drvdata from struct device directly. Going via
platform_device is an unneeded step back and forth.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-23 14:38:00 +02:00
Linus Walleij
5a3e59ce3a staging: nvec: Augment TODO file with GPIO work item
To make sure that this driver does not leave staging before it
is properly converted to use the new GPIO descriptor API,
augment the TODO file with this work item.

Cc: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-23 14:36:10 +02:00
Greg Kroah-Hartman
d6d69c824e staging: nvec: remove redundant license text
Now that the SPDX tag is in all drivers/staging/nvec/ files, that
identifies the license in a specific and legally-defined manner.  So the
extra GPL text wording can be removed as it is no longer needed at all.

This is done on a quest to remove the 700+ different ways that files in
the kernel describe the GPL license text.  And there's unneeded stuff
like the address (sometimes incorrect) for the FSF which is never
needed.

No copyright headers or other non-license-description text was removed.

Cc: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-15 16:03:45 +01:00
Greg Kroah-Hartman
971bcfca1f staging: nvec: add SPDX identifier.
It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.

Fix up the staging nvec driver to have a proper SPDX identifiers, based
on the license text in the file itself.  The SPDX identifier is a
legally binding shorthand, which can be used instead of the full boiler
plate text.

This work is based on a script and data from Thomas Gleixner, Philippe
Ombredanne, and Kate Stewart.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-15 16:03:45 +01:00
Greg Kroah-Hartman
b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Philipp Zabel
5d5272a517 staging: nvec: explicitly request exclusive reset control
Commit a53e35db70 ("reset: Ensure drivers are explicit when requesting
reset lines") started to transition the reset control request API calls
to explicitly state whether the driver needs exclusive or shared reset
control behavior. Convert all drivers requesting exclusive resets to the
explicit API call so the temporary transition helpers can be removed.

No functional changes.

Cc: Marc Dietrich <marvin24@gmx.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-tegra@vger.kernel.org
Cc: devel@driverdev.osuosl.org
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-30 08:28:21 -07:00
Riku Salminen
bbc2a2df92 Staging: nvec: Remove FSF's mailing address
Removed Free Software Foundation's address from the copyright notice
and replaced it with a link to http://www.gnu.org/licenses

Signed-off-by: Riku Salminen <riku@laatikko.io>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 12:55:25 +02:00
simran singhal
ac15649c1c staging: nvec: Remove unnecessary cast on void pointer
The following Coccinelle script was used to detect this:

@r@
expression x;
void* e;
type T;
identifier f;
@@
(
  *((T *)e)
|
  ((T *)x)[...]
|
  ((T*)x)->f
|
- (T*)
  e
)

Signed-off-by: simran singhal <singhalsimran0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-09 17:38:55 +01:00
Arushi Singhal
cf13a747b1 staging:nvec:nvec_ps2.c: Prefering kzalloc(sizeof(*ser_dev)...) over kzalloc(sizeof(struct serio)...)
Prefer kzalloc(sizeof(*ser_dev)...) over kzalloc(sizeof(struct
serio)...) as reported by checkpatch.pl.

Signed-off-by: Arushi Singhal <arushisinghal19971997@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-14 09:26:26 -08:00
Franck Demathieu
4cf64a5f51 staging: nvec: Fix incorrect type of i2c address
The i2c address is unsigned according to the dt-bindings.
Fix sparse issue (-Wtypesign):

  drivers/staging/nvec/nvec.c:781:35: warning: incorrect type in argument 3 (different signedness)
  drivers/staging/nvec/nvec.c:781:35:    expected unsigned int [usertype] *out_value
  drivers/staging/nvec/nvec.c:781:35:    got int *<noident>

Signed-off-by: Franck Demathieu <fdemathieu@gmail.com>
Acked-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-14 09:14:28 -08:00
Matthew Smith
5a30502c86 staging: nvec: fix indent issue in nvec_power.c
Fixes "WARNING: Statements should start on a tabstop" from checkpatch.pl

Signed-off-by: Matthew Smith <matthew11235@outlook.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-03 15:22:30 +01:00
Marc Dietrich
68fae2f3df staging: nvec: remove managed resource from PS2 driver
This basicly reverts commit e534f3e9 (staging:nvec: Introduce the use of
the managed version of kzalloc). Serio struct should never by managed
because it is refcounted. Doing so will lead to a double free oops on module
remove.

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Fixes: e534f3e942 ("staging:nvec: Introduce the use of the managed version of kzalloc")
Cc: stable <stable@vger.kernel.org> # 3.15+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-07 11:48:25 +01:00
Paul Fertser
17c1c9ba15 Revert "staging: nvec: ps2: change serio type to passthrough"
This reverts commit 36b30d6138.

This is necessary to detect paz00 (ac100) touchpad properly as one
speaking ETPS/2 protocol. Without it X.org's synaptics driver doesn't
work as the touchpad is detected as an ImPS/2 mouse instead.

Commit ec6184b1c7 changed the way
auto-detection is performed on ports marked as pass through and made the
issue apparent.

A pass through port is an additional PS/2 port used to connect a slave
device to a master device that is using PS/2 to communicate with the
host (so slave's PS/2 communication is tunneled over master's PS/2
link). "Synaptics PS/2 TouchPad Interfacing Guide" describes such a
setup (PS/2 PASS-THROUGH OPTION section).

Since paz00's embedded controller is not connected to a PS/2 port
itself, the PS/2 interface it exposes is not a pass-through one.

Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Acked-by: Marc Dietrich <marvin24@gmx.de>
Fixes: 36b30d6138 ("staging: nvec: ps2: change serio type to passthrough")
Cc: stable <stable@vger.kernel.org> # 3.4+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-07 11:48:25 +01:00
Paul Fertser
d8f8a74d5f drivers: staging: nvec: remove bogus reset command for PS/2 interface
This command was sent behind serio's back and the answer to it was
confusing atkbd probe function which lead to the elantech touchpad
getting detected as a keyboard.

To prevent this from happening just let every party do its part of the
job.

Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Acked-by: Marc Dietrich <marvin24@gmx.de>
Cc: stable <stable@vger.kernel.org> # 3.4+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-07 11:48:25 +01:00
Ben Marsh
a3dac5a35c Staging: nvec: removes a useless cast on a void pointer
Remove an unnecessary cast on a void pointer in nvec_power.c

Signed-off-by: Ben Marsh <bmarsh94@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-28 07:30:36 -07:00
Laura Garcia Liebana
f05f33fae3 staging: nvec: Fix comparison to NULL
Replace the use of comparison to NULL, use !<expression> instead. Checkpatch detected these issues.

Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-28 07:30:36 -07:00
Laura Garcia Liebana
9fc27699bd staging: nvec: Remove space after a cast
No space is required after a cast. Checkpatch detected this issue.

Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-28 07:30:36 -07:00
Ben Marsh
0df8f51eed Staging: nvec: removes an unnecessary cast on a void pointer
Patch to nvec_ps2.c to remove an unnecessary cast on a void pointer.

Signed-off-by: Ben Marsh <bmarsh94@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11 22:09:09 -08:00
Janani Ravichandran
60d0ed1c42 staging: nvec: nvec.c: Drop void pointer cast
Void pointers need not be cast to other pointer types.
Semantic patch used:

@r@
expression x;
void *e;
type T;
identifier f;
@@

(
  *((T *)e)
|
  ((T *)x) [...]
|
  ((T *)x)->f
|
- (T *)
  e
)

Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11 22:09:09 -08:00
Laura Garcia Liebana
350698f6ef staging: nvec: Avoid the use of BUG_ON
Prevent a kernel panic by avoiding the use of the BUG_ON macro.
Checkpatch detected this issue.

The BUG_ON macro is not needed as such cases shouldn't happen and they
were introduced for debugging purposes.

Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Acked-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11 22:09:09 -08:00
Laura Garcia Liebana
aaa657312a staging: nvec: Remove blank lines before a close brace
Blank lines aren't necessary before a close brace '}'. Checkpatch
detected this issue.

Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-11 22:09:09 -08:00
Laura Garcia Liebana
a4fe05d566 staging: nvec: Fix alignment with the open parenthesis
Alignment should match open parenthesis. Checkpatch detected these
issues.

Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-20 15:28:48 -08:00
Laura Garcia Liebana
d09c2a84e8 staging: nvec: Use the BIT macro
Prefer using the BIT macro instead of (1 << X). Checkpatch detected this
issue.

Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-20 15:28:48 -08:00
Tomás Tormo
73b37c91ac Staging: nvec: Modify the nvec_write_sync method to return the error code
Modify the nvec_write_sync function to return the error code
instead of the received message.

The received message is now returned as an output parameter.

Signed-off-by: Tomás Tormo <tomas.tormo@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-14 16:52:15 -08:00
Janani Ravichandran
fa882033e0 staging: nvec: Remove unneeded comment
Remove this comment as it does not have a meaning here.

Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-09 17:51:30 -08:00
Hari Prasath Gujulan Elango
f52e240816 staging: nvec: replace led_classdev_register
Replace the led_classdev_register() with the platform managed version
devm_led_classdev_register() & henceforth remove the redundant
nvec_paz00_remove() function.

Signed-off-by: Hari Prasath Gujulan Elango <hgujulan@visteon.com>
Acked-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-07 20:00:04 -08:00
Simon Guinot
66ad85d13f staging: nvec: fix block comments
This patch fixes a couple of checkpatch warnings about block comments.

Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-07 20:00:04 -08:00
Burcin Akalin
b4129f2f53 staging: nvec: Add space around '<<'
Add space around operator '<<'. Problem found using
checkpatch.pl
CHECK: spaces preferred around that '<<' (ctx:VxV)

Signed-off-by: Burcin Akalin <brcnakalin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-11-15 20:02:47 -08:00