Commit Graph

38 Commits

Author SHA1 Message Date
Gustavo A. R. Silva 70a2783c18 video: fbdev: omapfb_main: Mark expected switch fall-throughs
Mark switch cases where we are expecting to fall through.

This patch fixes the following warning (Building: omap1_defconfig arm):

drivers/watchdog/wdt285.c:170:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/watchdog/ar7_wdt.c:237:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:449:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:1549:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:1547:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:1545:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:1543:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:1540:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:1538:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:1535:3: warning: this statement may fall through [-Wimplicit-fallthrough=]

Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:51:52 -05:00
Bartlomiej Zolnierkiewicz 0adcdbcb17 video: fbdev: don't print error message on framebuffer_alloc() failure
framebuffer_alloc() can fail only on kzalloc() memory allocation
failure and since kzalloc() will print error message in such case
we can omit printing extra error message in drivers (which BTW is
what the majority of framebuffer_alloc() users is doing already).

Cc: "Bruno Prémont" <bonbons@linux-vserver.org>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2019-06-28 12:30:08 +02:00
Thomas Gleixner 1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
Based on 1 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 as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  59 temple place suite 330 boston ma 02111 1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00
Thomas Gleixner ec8f24b7fa treewide: Add SPDX license identifier - Makefile/Kconfig
Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:46 +02:00
Enrico Weigelt, metux IT consult a4bd25259e drivers: video: fbdev: Kconfig: pedantic cleanups
Formatting of Kconfig files doesn't look so pretty, so let the
Great White Handkerchief come around and clean it up.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
[b.zolnierkie: add missing patch description]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2019-04-01 17:46:57 +02:00
Janusz Krzysztofik 02f17ffd34 video: fbdev: omapfb: lcd_ams_delta: use GPIO lookup table
Now as Amstrad Delta board - the only user of this driver - provides
GPIO lookup tables, switch from GPIO numbers to GPIO descriptors and
use the table to locate required GPIO pins.

Declare static variables for storing GPIO descriptors and replace
gpio_ function calls with their gpiod_ equivalents. Move GPIO lookup
to the driver probe function so device initialization can be deferred
instead of aborted if a GPIO pin is not yet available.

Pin naming used by the driver should be followed while respective GPIO
lookup table is initialized by a board init code.

Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Boris Brezillon <boris.brezillon@bootlin.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-10-08 12:57:36 +02:00
Dan Carpenter 5ec1ec35b2 fbdev: omapfb: off by one in omapfb_register_client()
The omapfb_register_client[] array has OMAPFB_PLANE_NUM elements so the
> should be >= or we are one element beyond the end of the array.

Fixes: 8b08cf2b64 ("OMAP: add TI OMAP framebuffer driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Imre Deak <imre.deak@solidboot.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-07-24 19:11:28 +02:00
Arnd Bergmann 1bde9f2cf1 video/omap: add module license tags
I got a bunch of warnings in a randconfig build:

WARNING: modpost: missing MODULE_LICENSE() in drivers/video/fbdev/omap/lcd_ams_delta.o
WARNING: modpost: missing MODULE_LICENSE() in drivers/video/fbdev/omap/lcd_inn1510.o
WARNING: modpost: missing MODULE_LICENSE() in drivers/video/fbdev/omap/lcd_palmte.o
WARNING: modpost: missing MODULE_LICENSE() in drivers/video/fbdev/omap/lcd_palmtt.o

These come from an earlier patch of mine that turned all display drivers
into separate modules. The fix is to add a MODULE_LICENSE tag. Since I'm
doing that, adding a description and author field also makes sense. I
went by the authors listed in the comment at the top of each file, but
removed Imre's Nokia email address that I assume is not valid any more,
since Imre is working at Intel these days.

Fixes: 81c44c2b2c ("video/omap: fix modular build")
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[b.zolnierkie: minor fixups]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-06-08 18:08:12 +02:00
Markus Elfring 85d108dee5 video: omap: Improve a size determination in omapfb_do_probe()
Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-04-26 12:24:19 +02:00
Linus Torvalds e1d1ea549b fbdev changes for v4.15:
- convert timers to use timer_setup() (Kees Cook, Thierry Reding)
 
 - fix panels support on iMX boards in mxsfb driver (Stefan Agner)
 
 - fix timeout on EDID read in udlfb driver (Ladislav Michl)
 
 - add missing modes to fix out of bounds access in controlfb driver
   (Geert Uytterhoeven)
 
 - update initialisation paths in sa1100fb driver to be more robust
   (Russell King)
 
 - fix error handling path of ->probe method in au1200fb driver
   (Christophe JAILLET)
 
 - fix handling of cases when either panel or crt is defined in sm501fb
   driver (Sudip Mukherjee, Colin Ian King)
 
 - add ability to the Goldfish FB driver to be recognized by OS via DT
   (Aleksandar Markovic)
 
 - structures constifications (Bhumika Goyal)
 
 - misc fixes (Allen Pais, Gustavo A. R. Silva, Dan Carpenter)
 
 - misc cleanups (Colin Ian King, Himanshu Jha, Markus Elfring)
 
 - remove dead igafb driver
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Merge tag 'fbdev-v4.15' of git://github.com/bzolnier/linux

Pull fbdev updates from Bartlomiej Zolnierkiewicz:
 "There is nothing really major here (though removal of the dead igafb
  driver stands out in diffstat).

  Summary:

   - convert timers to use timer_setup() (Kees Cook, Thierry Reding)

   - fix panels support on iMX boards in mxsfb driver (Stefan Agner)

   - fix timeout on EDID read in udlfb driver (Ladislav Michl)

   - add missing modes to fix out of bounds access in controlfb driver
     (Geert Uytterhoeven)

   - update initialisation paths in sa1100fb driver to be more robust
     (Russell King)

   - fix error handling path of ->probe method in au1200fb driver
     (Christophe JAILLET)

   - fix handling of cases when either panel or crt is defined in
     sm501fb driver (Sudip Mukherjee, Colin Ian King)

   - add ability to the Goldfish FB driver to be recognized by OS via DT
     (Aleksandar Markovic)

   - structures constifications (Bhumika Goyal)

   - misc fixes (Allen Pais, Gustavo A. R. Silva, Dan Carpenter)

   - misc cleanups (Colin Ian King, Himanshu Jha, Markus Elfring)

   - remove dead igafb driver"

* tag 'fbdev-v4.15' of git://github.com/bzolnier/linux: (42 commits)
  OMAPFB: prevent buffer underflow in omapfb_parse_vram_param()
  video: fbdev: sm501fb: fix potential null pointer dereference on fbi
  fbcon: Initialize ops->info early
  video: fbdev: Convert timers to use timer_setup()
  video: fbdev: pxa3xx_gcu: Convert timers to use timer_setup()
  fbdev: controlfb: Add missing modes to fix out of bounds access
  video: fbdev: sis_main: mark expected switch fall-throughs
  video: fbdev: cirrusfb: mark expected switch fall-throughs
  video: fbdev: aty: radeon_pm: mark expected switch fall-throughs
  video: fbdev: sm501fb: mark expected switch fall-through in sm501fb_blank_crt
  video: fbdev: intelfb: remove redundant variables
  video/fbdev/dnfb: Use common error handling code in dnfb_probe()
  sm501fb: suspend and resume fb if it exists
  sm501fb: unregister framebuffer only if registered
  sm501fb: deallocate colormap only if allocated
  video: goldfishfb: Add support for device tree bindings
  Documentation: Add device tree binding for Goldfish FB driver
  video: udlfb: Fix read EDID timeout
  video: fbdev: remove dead igafb driver
  video: fbdev: mxsfb: fix pixelclock polarity
  ...
2017-11-20 21:50:24 -10:00
Kees Cook 6c78935777 video: fbdev: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly. One tracking pointer was added.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: David Lechner <david@lechnology.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jean Delvare <jdelvare@suse.de>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
[b.zolnierkie: ported it over pxa3xx_gcu changes]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-11-10 16:34:52 +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
Linus Torvalds 503f04530f fbdev changes for v4.14:
- make fbcon a built-time depency for fbdev (fbcon was tristate option
   before, now it is a bool) - this is a first step in preparations for
   making console_lock usage saner (currently it acts like the BKL for
   all things fbdev/fbcon) (Daniel Vetter)
 
 - add fbcon=margin:<color> command line option to select the fbcon margin
   color (David Lechner)
 
 - add DMI quirk table for x86 systems which need fbcon rotation (devices
   like Asus T100HA, GPD Pocket, the GPD win and the I.T.Works TW891)
   (Hans de Goede)
 
 - fix 1bpp logo support for unusual width (needed by LEGO MINDSTORMS EV3)
   (David Lechner)
 
 - enable Xilinx FB driver for ARM ZynqMP platform (Michal Simek)
 
 - fix use after free in the error path of udlfb driver (Anton Vasilyev)
 
 - fix error return code handling in pxa3xx_gcu driver (Gustavo A. R. Silva)
 
 - fix bootparams.screeninfo arguments checking in vgacon (Jan H. Schönherr)
 
 - do not leak uninitialized padding in clk to userspace in the debug code of
   atyfb driver (Vladis Dronov)
 
 - fix compiler warnings in fbcon code and matroxfb driver (Arnd Bergmann)
 
 - convert fbdev susbsytem to using %pOF instead of full_name (Rob Herring)
 
 - structures constifications (Arvind Yadav, Bhumika Goyal, Gustavo A. R.
   Silva, Julia Lawall)
 
 - misc cleanups (Gustavo A. R. Silva, Hyun Kwon, Julia Lawall, Kuninori
   Morimoto, Lynn Lei)
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Merge tag 'fbdev-v4.14' of git://github.com/bzolnier/linux

Pull fbdev updates from Bartlomiej Zolnierkiewicz:

 - make fbcon a built-time depency for fbdev (fbcon was tristate option
   before, now it is a bool) - this is a first step in preparations for
   making console_lock usage saner (currently it acts like the BKL for
   all things fbdev/fbcon) (Daniel Vetter)

 - add fbcon=margin:<color> command line option to select the fbcon
   margin color (David Lechner)

 - add DMI quirk table for x86 systems which need fbcon rotation
   (devices like Asus T100HA, GPD Pocket, the GPD win and the I.T.Works
   TW891) (Hans de Goede)

 - fix 1bpp logo support for unusual width (needed by LEGO MINDSTORMS
   EV3) (David Lechner)

 - enable Xilinx FB driver for ARM ZynqMP platform (Michal Simek)

 - fix use after free in the error path of udlfb driver (Anton Vasilyev)

 - fix error return code handling in pxa3xx_gcu driver (Gustavo A. R.
   Silva)

 - fix bootparams.screeninfo arguments checking in vgacon (Jan H.
   Schönherr)

 - do not leak uninitialized padding in clk to userspace in the debug
   code of atyfb driver (Vladis Dronov)

 - fix compiler warnings in fbcon code and matroxfb driver (Arnd
   Bergmann)

 - convert fbdev susbsytem to using %pOF instead of full_name (Rob
   Herring)

 - structures constifications (Arvind Yadav, Bhumika Goyal, Gustavo A.
   R. Silva, Julia Lawall)

 - misc cleanups (Gustavo A. R. Silva, Hyun Kwon, Julia Lawall, Kuninori
   Morimoto, Lynn Lei)

* tag 'fbdev-v4.14' of git://github.com/bzolnier/linux: (75 commits)
  video/console: Update BIOS dates list for GPD win console rotation DMI quirk
  video/console: Add rotated LCD-panel DMI quirk for the VIOS LTH17
  video: fbdev: sis: fix duplicated code for different branches
  video: fbdev: make fb_var_screeninfo const
  video: fbdev: aty: do not leak uninitialized padding in clk to userspace
  vgacon: Prevent faulty bootparams.screeninfo from causing harm
  video: fbdev: make fb_videomode const
  video/console: Add new BIOS date for GPD pocket to dmi quirk table
  fbcon: remove restriction on margin color
  video: ARM CLCD: constify amba_id
  video: fm2fb: constify zorro_device_id
  video: fbdev: annotate fb_fix_screeninfo with const and __initconst
  omapfb: constify omap_video_timings structures
  video: fbdev: udlfb: Fix use after free on dlfb_usb_probe error path
  fbdev: i810: make fb_ops const
  fbdev: matrox: make fb_ops const
  video: fbdev: pxa3xx_gcu: fix error return code in pxa3xx_gcu_probe()
  video: fbdev: Enable Xilinx FB for ZynqMP
  video: fbdev: Fix multiple style issues in xilinxfb
  video: fbdev: udlfb: constify usb_device_id.
  ...
2017-09-14 13:33:33 -07:00
Wolfram Sang 9787076c43 mfd: tps65010: Move header file out of I2C realm
include/linux/i2c is not for client devices. Move the header file to a
more appropriate location.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-08-15 08:27:22 +01:00
Bhumika Goyal a86d8d6798 drivers/video/fbdev/omap/lcd_mipid.c: add const to lcd_panel structure
Make lcd_panel structure const as it is only copied to some object.
As the only usage of this structure is a copy operation, so it can be
made const.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-08-01 17:20:39 +02:00
Linus Torvalds ad51271afc Merge branch 'akpm' (patches from Andrew)
Merge yet more updates from Andrew Morton:

- various misc things

- kexec updates

- sysctl core updates

- scripts/gdb udpates

- checkpoint-restart updates

- ipc updates

- kernel/watchdog updates

- Kees's "rough equivalent to the glibc _FORTIFY_SOURCE=1 feature"

- "stackprotector: ascii armor the stack canary"

- more MM bits

- checkpatch updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (96 commits)
  writeback: rework wb_[dec|inc]_stat family of functions
  ARM: samsung: usb-ohci: move inline before return type
  video: fbdev: omap: move inline before return type
  video: fbdev: intelfb: move inline before return type
  USB: serial: safe_serial: move __inline__ before return type
  drivers: tty: serial: move inline before return type
  drivers: s390: move static and inline before return type
  x86/efi: move asmlinkage before return type
  sh: move inline before return type
  MIPS: SMP: move asmlinkage before return type
  m68k: coldfire: move inline before return type
  ia64: sn: pci: move inline before type
  ia64: move inline before return type
  FRV: tlbflush: move asmlinkage before return type
  CRIS: gpio: move inline before return type
  ARM: HP Jornada 7XX: move inline before return type
  ARM: KVM: move asmlinkage before type
  checkpatch: improve the STORAGE_CLASS test
  mm, migration: do not trigger OOM killer when migrating memory
  drm/i915: use __GFP_RETRY_MAYFAIL
  ...
2017-07-13 12:38:49 -07:00
Joe Perches ba168a46b0 video: fbdev: omap: move inline before return type
Make the code like the rest of the kernel.

Link: http://lkml.kernel.org/r/bc5927726abc70d7c066df7ab4cb7cfce4a7b577.1499284835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-12 16:26:04 -07:00
Arvind Yadav 62bffe325f fbdev: omapfb: constify ctrl_caps, color_caps, panel_attr_grp and ctrl_attr_grp
File size before:
   text	   data	    bss	    dec	    hex	filename
  13007	   1536	    156	  14699	   396b	drivers/video/fbdev/omap/omapfb_main.o

File size after adding 'const':
   text	   data	    bss	    dec	    hex	filename
  13135	   1408	    156	  14699	   396b	drivers/video/fbdev/omap/omapfb_main.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-07-04 17:47:23 +02:00
Linus Torvalds 4892c6f72e fbdev changes for v4.12:
- fix handling of probing errors in omapfb (Arvind Yadav)
 - remove incorrect __exit markups in few drivers (Dmitry Torokhov)
 - fix boot time logo support for drivers using deferred probe (Takeshi Kihara)
 - fix DMA allocation size for ARM CLCD driver (Liam Beguin)
 - add support for specifying size via xenstore in xen-frontfb (Juergen Gross)
 - support for AUS mode in imxfb driver (Martin Kaiser)
 - fix buffer on stack usage in udlfb driver (Maksim Salau)
 - probe failure path fixup in sm501fb driver (Alexey Khoroshilov)
 - fix config dependency loop for stifb driver (Arnd Bergmann)
 - misc cleanups
   (Joe Perches, Christophe Leroy, Karim Eshapa, Pushkar Jambhlekar)
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Merge tag 'fbdev-v4.12' of git://github.com/bzolnier/linux

Pull fbdev updates from Bartlomiej Zolnierkiewicz:
 "There is nothing really major here, just a couple of small bugfixes,
  improvements and cleanups.

   - fix handling of probing errors in omapfb (Arvind Yadav)

   - remove incorrect __exit markups in few drivers (Dmitry Torokhov)

   - fix boot time logo support for drivers using deferred probe
     (Takeshi Kihara)

   - fix DMA allocation size for ARM CLCD driver (Liam Beguin)

   - add support for specifying size via xenstore in xen-frontfb
     (Juergen Gross)

   - support for AUS mode in imxfb driver (Martin Kaiser)

   - fix buffer on stack usage in udlfb driver (Maksim Salau)

   - probe failure path fixup in sm501fb driver (Alexey Khoroshilov)

   - fix config dependency loop for stifb driver (Arnd Bergmann)

   - misc cleanups (Joe Perches, Christophe Leroy, Karim Eshapa, Pushkar
     Jambhlekar)"

* tag 'fbdev-v4.12' of git://github.com/bzolnier/linux:
  fbdev: sti: don't select CONFIG_VT
  drivers/video/fbdev/omap/lcd_mipid.c: Use time comparison kernel macros
  sm501fb: don't return zero on failure path in sm501fb_start()
  video: fbdev: udlfb: Fix buffer on stack
  video: console: Remove reference to CONFIG_8xx
  dt-bindings: display: imx: entry for AUS mode
  video: fbdev: imxfb: support AUS mode
  drivers/video/fbdev: Fixing coding guidelines in acornfb.c
  xen, fbfront: add support for specifying size via xenstore
  video: ARM CLCD: fix dma allocation size
  drivers/video: Convert remaining uses of pr_warning to pr_warn
  video/logo: tidyup fb_logo_late_init initcall timing
  video: fbdev: i810: remove incorrect __exit markups
  video: fbdev: pmag-aa-fb: remove incorrect __exit markups
  video: fbdev: pmagb-b-fb: remove incorrect __exit markups
  video: fbdev: pmag-ba-fb: remove incorrect __exit markups
  omapfb: dss: Handle return errors in dss_init_ports()
2017-05-11 11:12:26 -07:00
Karim Eshapa 5c9cfda13d drivers/video/fbdev/omap/lcd_mipid.c: Use time comparison kernel macros
Use time_before_eq time comparison defind kernel macro
that has safety check.

Signed-off-by: Karim Eshapa <karim.eshapa@gmail.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-05-02 13:47:54 +02:00
Aaro Koskinen e68d490def fbdev: omapfb: delete check_required_callbacks()
Commit 561eb9d09a ("fbdev: omap/lcd: Make callbacks optional") made
panel callbacks optional but forgot to update check_required_callbacks().
As a result many (all?) OMAP systems using omapfb will crash at boot.
Fix by deleting the whole function.

Fixes: 561eb9d09a ("fbdev: omap/lcd: Make callbacks optional")
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-04-14 13:38:32 +02:00
Lars-Peter Clausen 561eb9d09a fbdev: omap/lcd: Make callbacks optional
Most OMAP FB LCD drivers don't have anything to do in their panel
callbacks. This leads to a large set of empty boilerplate functions in the
panel drivers. Make those callbacks optional by checking if they are set
before calling them. This allows those boilerplate functions to be removed.

Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-01-30 17:39:49 +01:00
Lars-Peter Clausen b2c1e8a75b fbdev: omap/lcd: Staticize non-exported lcd_panel structs
None of the lcd_panel structs defined by the OMAP LCD drivers are
referenced outside of their compilation unit. Follow best practices and
mark them as static.

Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-01-30 17:39:49 +01:00
Lars-Peter Clausen 0ed711168a fbdev: omap/lcd: Remove no-op driver callbacks
Every single one of the OMAP fbdev LCD drivers implements no-op remove,
suspend and resume callbacks for their platform_driver. This is not
necessary as the driver core handles the case where the callbacks are not
set just fine. So they are just unnecessary boilerplate that can be
removed.

Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2017-01-30 17:39:49 +01:00
Bhaktipriya Shridhar 7166829215 fbdev: Remove deprecated create_singlethread_workqueue
The workqueue "esd_wq" has only a single workitem(&md->esd_work)
and hence doesn't require ordering. Also, it is not being used on a
memory reclaim path. Hence, the singlethreaded workqueue has been
replaced with the use of system_wq.

System workqueues have been able to handle high level of concurrency
for a long time now and hence it's not required to have a singlethreaded
workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue
created with create_singlethread_workqueue(), system_wq allows multiple
work items to overlap executions even on the same CPU; however, a
per-cpu workqueue doesn't have any CPU locality or global ordering
guarantee unless the target CPU is explicitly specified and thus the
increase of local concurrency shouldn't make any difference.

mipid_esd_stop_check () calls cancel_delayed_work() in mipid_cleanup()
to ensure that there are no pending tasks while disconnecting the driver.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-08-11 17:54:56 +03:00
Linus Torvalds 1a46712aa9 This is the bulk of GPIO changes for kernel v4.6:
Core changes:
 
 - The gpio_chip is now a *real device*. Until now the gpio chips
   were just piggybacking the parent device or (gasp) floating in
   space outside of the device model. We now finally make GPIO chips
   devices. The gpio_chip will create a gpio_device which contains
   a struct device, and this gpio_device struct is kept private.
   Anything that needs to be kept private from the rest of the kernel
   will gradually be moved over to the gpio_device.
 
 - As a result of making the gpio_device a real device, we have added
   resource management, so devm_gpiochip_add_data() will cut down on
   overhead and reduce code lines. A huge slew of patches convert
   almost all drivers in the subsystem to use this.
 
 - Building on making the GPIO a real device, we add the first step
   of a new userspace ABI: the GPIO character device. We take small
   steps here, so we first add a pure *information* ABI and the tool
   "lsgpio" that will list all GPIO devices on the system and all
   lines on these devices. We can now discover GPIOs properly from
   userspace. We still have not come up with a way to actually *use*
   GPIOs from userspace.
 
 - To encourage people to use the character device for the future,
   we have it always-enabled when using GPIO. The old sysfs ABI is
   still opt-in (and can be used in parallel), but is marked as
   deprecated. We will keep it around for the foreseeable future,
   but it will not be extended to cover ever more use cases.
 
 Cleanup:
 
 - Bjorn Helgaas removed a whole slew of per-architecture <asm/gpio.h>
   includes. This dates back to when GPIO was an opt-in feature and
   no shared library even existed: just a header file with proper
   prototypes was provided and all semantics were up to the arch to
   implement. These patches make the GPIO chip even more a proper
   device and cleans out leftovers of the old in-kernel API here
   and there. Still some cruft is left but it's very little now.
 
 - There is still some clamping of return values for .get() going
   on, but we now return sane values in the vast majority of drivers
   and the errorpath is sanitized. Some patches for powerpc, blackfin
   and unicore still drop in.
 
 - We continue to switch the ARM, MIPS, blackfin, m68k local GPIO
   implementations to use gpiochip_add_data() and cut down on code
   lines.
 
 - MPC8xxx is converted to use the generic GPIO helpers.
 
 - ATH79 is converted to use the generic GPIO helpers.
 
 New drivers:
 
 - WinSystems WS16C48
 
 - Acces 104-DIO-48E
 
 - F81866 (a F7188x variant)
 
 - Qoric (a MPC8xxx variant)
 
 - TS-4800
 
 - SPI serializers (pisosr): simple 74xx shift registers connected
   to SPI to obtain a dirt-cheap output-only GPIO expander.
 
 - Texas Instruments TPIC2810
 
 - Texas Instruments TPS65218
 
 - Texas Instruments TPS65912
 
 - X-Gene (ARM64) standby GPIO controller
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Merge tag 'gpio-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for kernel v4.6.  There is quite a
  lot of interesting stuff going on.

  The patches to other subsystems and arch-wide are ACKed as far as
  possible, though I consider things like per-arch <asm/gpio.h> as
  essentially a part of the GPIO subsystem so it should not be needed.

  Core changes:

   - The gpio_chip is now a *real device*.  Until now the gpio chips
     were just piggybacking the parent device or (gasp) floating in
     space outside of the device model.

     We now finally make GPIO chips devices.  The gpio_chip will create
     a gpio_device which contains a struct device, and this gpio_device
     struct is kept private.  Anything that needs to be kept private
     from the rest of the kernel will gradually be moved over to the
     gpio_device.

   - As a result of making the gpio_device a real device, we have added
     resource management, so devm_gpiochip_add_data() will cut down on
     overhead and reduce code lines.  A huge slew of patches convert
     almost all drivers in the subsystem to use this.

   - Building on making the GPIO a real device, we add the first step of
     a new userspace ABI: the GPIO character device.  We take small
     steps here, so we first add a pure *information* ABI and the tool
     "lsgpio" that will list all GPIO devices on the system and all
     lines on these devices.

     We can now discover GPIOs properly from userspace.  We still have
     not come up with a way to actually *use* GPIOs from userspace.

   - To encourage people to use the character device for the future, we
     have it always-enabled when using GPIO.  The old sysfs ABI is still
     opt-in (and can be used in parallel), but is marked as deprecated.

     We will keep it around for the foreseeable future, but it will not
     be extended to cover ever more use cases.

  Cleanup:

   - Bjorn Helgaas removed a whole slew of per-architecture <asm/gpio.h>
     includes.

     This dates back to when GPIO was an opt-in feature and no shared
     library even existed: just a header file with proper prototypes was
     provided and all semantics were up to the arch to implement.  These
     patches make the GPIO chip even more a proper device and cleans out
     leftovers of the old in-kernel API here and there.

     Still some cruft is left but it's very little now.

   - There is still some clamping of return values for .get() going on,
     but we now return sane values in the vast majority of drivers and
     the errorpath is sanitized.  Some patches for powerpc, blackfin and
     unicore still drop in.

   - We continue to switch the ARM, MIPS, blackfin, m68k local GPIO
     implementations to use gpiochip_add_data() and cut down on code
     lines.

   - MPC8xxx is converted to use the generic GPIO helpers.

   - ATH79 is converted to use the generic GPIO helpers.

  New drivers:

   - WinSystems WS16C48

   - Acces 104-DIO-48E

   - F81866 (a F7188x variant)

   - Qoric (a MPC8xxx variant)

   - TS-4800

   - SPI serializers (pisosr): simple 74xx shift registers connected to
     SPI to obtain a dirt-cheap output-only GPIO expander.

   - Texas Instruments TPIC2810

   - Texas Instruments TPS65218

   - Texas Instruments TPS65912

   - X-Gene (ARM64) standby GPIO controller"

* tag 'gpio-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (194 commits)
  Revert "Share upstreaming patches"
  gpio: mcp23s08: Fix clearing of interrupt.
  gpiolib: Fix comment referring to gpio_*() in gpiod_*()
  gpio: pca953x: Fix pca953x_gpio_set_multiple() on 64-bit
  gpio: xgene: Fix kconfig for standby GIPO contoller
  gpio: Add generic serializer DT binding
  gpio: uapi: use 0xB4 as ioctl() major
  gpio: tps65912: fix bad merge
  Revert "gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free"
  gpio: omap: drop dev field from gpio_bank structure
  gpio: mpc8xxx: Slightly update the code for better readability
  gpio: mpc8xxx: Remove *read_reg and *write_reg from struct mpc8xxx_gpio_chip
  gpio: mpc8xxx: Fixup setting gpio direction output
  gpio: mcp23s08: Add support for mcp23s18
  dt-bindings: gpio: altera: Fix altr,interrupt-type property
  gpio: add driver for MEN 16Z127 GPIO controller
  gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free
  gpio: timberdale: Switch to devm_ioremap_resource()
  gpio: ts4800: Add IMX51 dependency
  gpiolib: rewrite gpiodev_add_to_list
  ...
2016-03-17 21:05:32 -07:00
Linus Torvalds 09fd671ccb fbdev changes for 4.6
* Miscallaneous small fixes to various fbdev drivers
 * Remove fb_rotate, which was never used
 * pmag fb improvements
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Merge tag 'fbdev-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux

Pull fbdev updates from Tomi Valkeinen:

 - Miscallaneous small fixes to various fbdev drivers

 - Remove fb_rotate, which was never used

 - pmag fb improvements

* tag 'fbdev-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (21 commits)
  xen kconfig: don't "select INPUT_XEN_KBDDEV_FRONTEND"
  video: fbdev: sis: remove unused variable
  drivers/video: make fbdev/sunxvr2500.c explicitly non-modular
  drivers/video: make fbdev/sunxvr1000.c explicitly non-modular
  drivers/video: make fbdev/sunxvr500.c explicitly non-modular
  video: exynos: fix modular build
  fbdev: da8xx-fb: fix videomodes of lcd panels
  fbdev: kill fb_rotate
  video: fbdev: bt431: Correct cursor format control macro
  video: fbdev: pmag-ba-fb: Optimize Bt455 colormap addressing
  video: fbdev: pmag-ba-fb: Fix and rework Bt455 colormap handling
  video: fbdev: bt455: Remove unneeded colormap helpers for cursor support
  video: fbdev: pmag-aa-fb: Report video timings
  video: fbdev: pmag-aa-fb: Enable building as a module
  video: fbdev: pmag-aa-fb: Adapt to current APIs
  video: fbdev: pmag-ba-fb: Fix the lower margin size
  fbdev: sh_mobile_lcdc: Use ARCH_RENESAS
  fbdev: n411: check return value
  fbdev: exynos: fix IS_ERR_VALUE usage
  video: Use bool instead int pointer for get_opt_bool() argument
  ...
2016-03-16 18:37:20 -07:00
Luis R. Rodriguez f6e45661f9 dma, mm/pat: Rename dma_*_writecombine() to dma_*_wc()
Rename dma_*_writecombine() to dma_*_wc(), so that the naming
is coherent across the various write-combining APIs. Keep the
old names for compatibility for a while, these can be removed
at a later time. A guard is left to enable backporting of the
rename, and later remove of the old mapping defines seemlessly.

Build tested successfully with allmodconfig.

The following Coccinelle SmPL patch was used for this simple
transformation:

@ rename_dma_alloc_writecombine @
expression dev, size, dma_addr, gfp;
@@

-dma_alloc_writecombine(dev, size, dma_addr, gfp)
+dma_alloc_wc(dev, size, dma_addr, gfp)

@ rename_dma_free_writecombine @
expression dev, size, cpu_addr, dma_addr;
@@

-dma_free_writecombine(dev, size, cpu_addr, dma_addr)
+dma_free_wc(dev, size, cpu_addr, dma_addr)

@ rename_dma_mmap_writecombine @
expression dev, vma, cpu_addr, dma_addr, size;
@@

-dma_mmap_writecombine(dev, vma, cpu_addr, dma_addr, size)
+dma_mmap_wc(dev, vma, cpu_addr, dma_addr, size)

We also keep the old names as compatibility helpers, and
guard against their definition to make backporting easier.

Generated-by: Coccinelle SmPL
Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: airlied@linux.ie
Cc: akpm@linux-foundation.org
Cc: benh@kernel.crashing.org
Cc: bhelgaas@google.com
Cc: bp@suse.de
Cc: dan.j.williams@intel.com
Cc: daniel.vetter@ffwll.ch
Cc: dhowells@redhat.com
Cc: julia.lawall@lip6.fr
Cc: konrad.wilk@oracle.com
Cc: linux-fbdev@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: luto@amacapital.net
Cc: mst@redhat.com
Cc: tomi.valkeinen@ti.com
Cc: toshi.kani@hp.com
Cc: vinod.koul@intel.com
Cc: xen-devel@lists.xensource.com
Link: http://lkml.kernel.org/r/1453516462-4844-1-git-send-email-mcgrof@do-not-panic.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-09 14:57:51 +01:00
Rasmus Villemoes 2f9ba65d9d fbdev: kill fb_rotate
The fb_rotate method in struct fb_ops is never actually invoked, and
it's been that way in the entire history of git (in fact, the last
occurrence of the string '->fb_rotate' vanished over 10 years ago,
with b4d8aea6d6, and that merely tested whether the callback
existed). So remove some dead code and make struct fb_obs a little
smaller.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-02-26 13:28:35 +02:00
Bjorn Helgaas 288e6eaa06 gpio: Include linux/gpio.h instead of asm/gpio.h
Most arches have an asm/gpio.h that merely includes linux/gpio.h.  The
others select ARCH_HAVE_CUSTOM_GPIO_H, and when that's selected,
linux/gpio.h includes asm/gpio.h.

Therefore, code should include linux/gpio.h instead of including asm/gpio.h
directly.

Remove includes of asm/gpio.h, adding an include of linux/gpio.h when
necessary.

This is a follow-on to 7563bbf89d ("gpiolib/arches: Centralise
bolierplate asm/gpio.h").

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-16 00:20:03 +01:00
Linus Torvalds 3b13866869 fbdev changes for 4.4
* omap: fix hdmi audio configuration issue
 * ssd1307fb: add ssd1309 support
 * tridentfb: support DDC
 * gxt4500: enable support for non-PPC platforms
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Merge tag 'fbdev-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux

Pull fbdev updates from Tomi Valkeinen:
 - omap: fix hdmi audio configuration issue
 - ssd1307fb: add ssd1309 support
 - tridentfb: support DDC
 - gxt4500: enable support for non-PPC platforms

* tag 'fbdev-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
  radeonfb: Deinline large functions
  gxt4500: enable panning
  gxt4500: Use arch_phys_wc_* for framebuffer
  gxt4500: fix color order
  gxt4500: fix 16bpp 565 mode
  gxt4500: enable on non-PPC architectures
  tridentfb: Add DDC support
  fb_ddc: Allow I2C adapters without SCL read capability
  fbdev: ssd1307fb: add ssd1309 support
  fbdev: ssd1307fb: alphabetize headers
  video/omap: remove invalid check
  OMAPDSS: hdmi: Reconfigure and restart audio when display is enabled
2015-11-10 10:00:09 -08:00
Andrew F. Davis 3821a065f5 spi: Drop owner assignment from spi_drivers
An spi_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-10-28 10:30:17 +09:00
Andrzej Hajda c50d5cd235 video/omap: remove invalid check
regno is unsigned so it cannot be negative.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2015-09-24 13:46:15 +03:00
Arnd Bergmann ee62eddb1a video: omap/h3: fix tps65010 dependency
The h3 LCD driver fails to link when tps65010 is configured
as a loadable module:

drivers/built-in.o: In function `h3_panel_disable':
debugfs.c:(.text+0x206ac): undefined reference to `tps65010_set_gpio_out_value'
debugfs.c:(.text+0x206cc): undefined reference to `tps65010_set_gpio_out_value'
drivers/built-in.o: In function `h3_panel_enable':
debugfs.c:(.text+0x206e0): undefined reference to `tps65010_set_gpio_out_value'
debugfs.c:(.text+0x20704): undefined reference to `tps65010_set_gpio_out_value'

This clarifies the dependency so we can only select it if
the dependnecy is built-in.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2015-05-27 12:54:47 +03:00
Wolfram Sang 6355721ca9 video: fbdev: omap: drop owner assignment from platform_drivers
A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-20 16:21:54 +02:00
Aaro Koskinen 7ceb1892c0 video: omap: delete support for early fbmem allocation
Commit 1e434f9318 (OMAPFB: remove early mem
alloc from old omapfb) deleted the support for early fbmem allocation
from the platform code, but some code still remains in the driver side.
Delete this code now, as it repotedly causes build issues on !MMU.

The patch was tested on Amstrad E3 and Nokia 770 and framebuffer
functionality is not affected.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-16 11:56:12 +03:00
Arnd Bergmann 81c44c2b2c video/omap: fix modular build
The framebuffer layer can be a loadable module, which forces
omapfb to be a module as well. However, this breaks the lcd
drivers, which are linked into the omapfb driver but each
have their own module_init() function. To solve this,
we split out the lcd drivers into separate modules and
export omapfb_register_panel, which is the only interface
required between the main omapfb driver and the lcd panel
drivers.

We also have to introduce a new Kconfig symbol for H3, since
that lcd driver has a dependency on TPS65010, which we can
express better in Kconfig than Makefile syntax.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-09 12:55:46 +03:00
Tomi Valkeinen f7018c2135 video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.

Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.

No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-17 08:10:19 +03:00