linux-toradex.git/drivers/auxdisplay, branch v5.5-rc7

auxdisplay: charlcd: deduplicate simple_strtoul()

2019-12-05T03:44:12+00:00

Like in commit 8b2303de399f ("serial: core: Fix handling of options
after MMIO address") we may use simple_strtoul() which in comparison to
kstrtoul() can do conversion in-place without additional and unnecessary
code to be written.

Link: http://lkml.kernel.org/r/20190801192904.41087-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko 
Reviewed-by: Petr Mladek 
Cc: Geert Uytterhoeven 
Cc: Mans Rullgard 
Cc: Miguel Ojeda 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge tag 'docs-5.4' of git://git.lwn.net/linux

2019-09-17T23:22:26+00:00

Pull documentation updates from Jonathan Corbet:
 "It's a somewhat calmer cycle for docs this time, as the churn of the
  mass RST conversion is happily mostly behind us.

   - A new document on reproducible builds.

   - We finally got around to zapping the documentation for hardware
     support that was removed in 2004; one doesn't want to rush these
     things.

   - The usual assortment of fixes, typo corrections, etc"

* tag 'docs-5.4' of git://git.lwn.net/linux: (67 commits)
  Documentation: kbuild: Add document about reproducible builds
  docs: printk-formats: Stop encouraging use of unnecessary %h[xudi] and %hh[xudi]
  Documentation: Add "earlycon=sbi" to the admin guide
  doc:lock: remove reference to clever use of read-write lock
  devices.txt: improve entry for comedi (char major 98)
  docs: mtd: Update spi nor reference driver
  doc: arm64: fix grammar dtb placed in no attributes region
  Documentation: sysrq: don't recommend 'S' 'U' before 'B'
  mailmap: Update email address for Quentin Perret
  docs: ftrace: clarify when tracing is disabled by the trace file
  docs: process: fix broken link
  Documentation/arm/samsung-s3c24xx: Remove stray U+FEFF character to fix title
  Documentation/arm/sa1100/assabet: Fix 'make assabet_defconfig' command
  Documentation/arm/sa1100: Remove some obsolete documentation
  docs/zh_CN: update Chinese howto.rst for latexdocs making
  Documentation: virt: Fix broken reference to virt tree's index
  docs: Fix typo on pull requests guide
  kernel-doc: Allow anonymous enum
  Documentation: sphinx: Don't parse socket() as identifier reference
  Documentation: sphinx: Add missing comma to list of strings
  ...

auxdisplay: ht16k33: Make ht16k33_fb_fix and ht16k33_fb_var constant

2019-08-20T09:48:54+00:00

The static structures ht16k33_fb_fix and ht16k33_fb_var, of types
fb_fix_screeninfo and fb_var_screeninfo respectively, are not used
except to be copied into other variables. Hence make both of them
constant to prevent unintended modification.
Issue found with
Coccinelle.

Acked-by: Robin van der Gracht 
Signed-off-by: Nishka Dasgupta 
Signed-off-by: Miguel Ojeda

auxdisplay: charlcd: add include guard to charlcd.h

2019-08-08T17:59:50+00:00

Add a header include guard just in case.

Signed-off-by: Masahiro Yamada 
Signed-off-by: Miguel Ojeda

auxdisplay: charlcd: move charlcd.h to drivers/auxdisplay

2019-08-08T17:59:17+00:00

This header is included in drivers/auxdisplay/. Make it a local header.

Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Masahiro Yamada 
Signed-off-by: Miguel Ojeda

auxdisplay: charlcd: add help text for backlight initial state

2019-08-05T21:03:16+00:00

While the individual CHARLCD_BL_xxx options have help texts, the
menu itself does not.  Fix this.

Suggested-by: Linus Torvalds 
Signed-off-by: Mans Rullgard 
[Added a bit more text to address Linus' suggestion]
Signed-off-by: Miguel Ojeda

auxdisplay: panel: need to delete scan_timer when misc_register fails in panel_attach

2019-08-05T20:33:31+00:00

In panel_attach, if misc_register fails, we need to delete scan_timer,
which was setup in keypad_init->init_scan_timer.

Reported-by: Hulk Robot 
Signed-off-by: zhengbin 
Signed-off-by: Miguel Ojeda

docs: admin-guide: add auxdisplay files to it after conversion to ReST

2019-07-31T19:30:06+00:00

Those two files describe userspace-faced information. While part of
it might fit on uAPI, it sounds to me that the admin guide is the
best place for them.

Signed-off-by: Mauro Carvalho Chehab 
Acked-by: Miguel Ojeda 
Signed-off-by: Jonathan Corbet

Merge tag 'docs-5.3' of git://git.lwn.net/linux

2019-07-09T19:34:26+00:00

Pull Documentation updates from Jonathan Corbet:
 "It's been a relatively busy cycle for docs:

   - A fair pile of RST conversions, many from Mauro. These create more
     than the usual number of simple but annoying merge conflicts with
     other trees, unfortunately. He has a lot more of these waiting on
     the wings that, I think, will go to you directly later on.

   - A new document on how to use merges and rebases in kernel repos,
     and one on Spectre vulnerabilities.

   - Various improvements to the build system, including automatic
     markup of function() references because some people, for reasons I
     will never understand, were of the opinion that
     :c:func:``function()`` is unattractive and not fun to type.

   - We now recommend using sphinx 1.7, but still support back to 1.4.

   - Lots of smaller improvements, warning fixes, typo fixes, etc"

* tag 'docs-5.3' of git://git.lwn.net/linux: (129 commits)
  docs: automarkup.py: ignore exceptions when seeking for xrefs
  docs: Move binderfs to admin-guide
  Disable Sphinx SmartyPants in HTML output
  doc: RCU callback locks need only _bh, not necessarily _irq
  docs: format kernel-parameters -- as code
  Doc : doc-guide : Fix a typo
  platform: x86: get rid of a non-existent document
  Add the RCU docs to the core-api manual
  Documentation: RCU: Add TOC tree hooks
  Documentation: RCU: Rename txt files to rst
  Documentation: RCU: Convert RCU UP systems to reST
  Documentation: RCU: Convert RCU linked list to reST
  Documentation: RCU: Convert RCU basic concepts to reST
  docs: filesystems: Remove uneeded .rst extension on toctables
  scripts/sphinx-pre-install: fix out-of-tree build
  docs: zh_CN: submitting-drivers.rst: Remove a duplicated Documentation/
  Documentation: PGP: update for newer HW devices
  Documentation: Add section about CPU vulnerabilities for Spectre
  Documentation: platform: Delete x86-laptop-drivers.txt
  docs: Note that :c:func: should no longer be used
  ...

auxdisplay/ht16k33.c: Convert to use vm_map_pages_zero()

2019-06-20T13:06:24+00:00

While using mmap, the incorrect values of length and vm_pgoff are
ignored and this driver goes ahead with mapping fbdev.buffer
to user vma.

Convert vm_insert_pages() to use vm_map_pages_zero(). We could later
"fix" these drivers to behave according to the normal vm_pgoff
offsetting simply by removing the _zero suffix on the function name
and if that causes regressions, it gives us an easy way to revert.

Signed-off-by: Souptick Joarder 
Acked-by: Robin van der Gracht 
Signed-off-by: Miguel Ojeda