Now that the fbops member of struct fb_info is const, we can start
making the ops const as well.

This does not cover all drivers; some actually modify the fbops struct,
for example to adjust for different configurations, and others do more
involved things that I'd rather not touch in practically obsolete
drivers. Mostly this is the low hanging fruit where we can add "const"
and be done with it.

v3:
- un-constify atyfb, mb862xx, nvidia and uvesabf (0day)

v2:
- fix typo (Christophe de Dinechin)
- use "static const" instead of "const static" in mx3fb.c
- also constify smscufx.c

Cc: linux-fbdev@vger.kernel.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ce67f14435f3af498f2e8bf35ce4be11f7504132.1575390740.git.jani.nikula@intel.com

Pull fbdev updates from Bartlomiej Zolnierkiewicz:

 - remove fbdev notifier usage for fbcon (as prep work to clean up the
   fbcon locking), add locking checks in vt/console code and make
   assorted cleanups in fbdev and backlight code (Daniel Vetter)

 - add COMPILE_TEST support to atmel_lcdfb, da8xx-fb, gbefb, imxfb,
   pvr2fb and pxa168fb drivers (me)

 - fix DMA API abuse in au1200fb and jz4740_fb drivers (Christoph
   Hellwig)

 - add check for new BGRT status field rotation bits in efifb driver
   (Hans de Goede)

 - mark expected switch fall-throughs in s3c-fb driver (Gustavo A. R.
   Silva)

 - remove fbdev mxsfb driver in favour of the drm version (Fabio
   Estevam)

 - remove broken rfbi code from omap2fb driver (me)

 - misc fixes (Arnd Bergmann, Shobhit Kukreti, Wei Yongjun, me)

 - misc cleanups (Gustavo A. R. Silva, Colin Ian King, me)

* tag 'fbdev-v5.3' of git://github.com/bzolnier/linux: (62 commits)
  video: fbdev: imxfb: fix a typo in imxfb_probe()
  video: fbdev: s3c-fb: Mark expected switch fall-throughs
  video: fbdev: s3c-fb: fix sparse warnings about using incorrect types
  video: fbdev: don't print error message on framebuffer_alloc() failure
  video: fbdev: intelfb: return -ENOMEM on framebuffer_alloc() failure
  video: fbdev: s3c-fb: return -ENOMEM on framebuffer_alloc() failure
  vga_switcheroo: Depend upon fbcon being built-in, if enabled
  video: fbdev: omap2: remove rfbi
  video: fbdev: atmel_lcdfb: remove redundant initialization to variable ret
  video: fbdev-MMP: Use struct_size() in devm_kzalloc()
  video: fbdev: controlfb: fix warnings about comparing pointer to 0
  efifb: BGRT: Add check for new BGRT status field rotation bits
  jz4740_fb: fix DMA API abuse
  video: fbdev: pvr2fb: fix link error for pvr2fb_pci_exit
  video: fbdev: s3c-fb: add COMPILE_TEST support
  video: fbdev: imxfb: fix sparse warnings about using incorrect types
  video: fbdev: pvr2fb: fix build warning when compiling as module
  fbcon: Export fbcon_update_vcs
  backlight: simplify lcd notifier
  staging/olpc_dcon: Add drm conversion to TODO
  ...

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>

topic/remove-fbcon-notifiers:
- remove fbdev notifier usage for fbcon, as prep work to clean up the fbcon locking
- assorted locking checks in vt/console code
- assorted notifier and cleanups in fbdev and backlight code

One trivial merge conflict fixed.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

Entirely unused.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://patchwork.freedesktop.org/patch/msgid/20190528090304.9388-7-daniel.vetter@ffwll.ch

This is a PCI driver and FB_CYBER2000 depends on PCI in Kconfig so
there is no need to check for PCI inside the driver code.

Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

Make these const as they are only passed to a const argument of the
function fb_find_mode.

Done using Coccinelle.

@match disable optional_qualifier@
identifier s;
@@
static struct fb_videomode s = {...};

@ref@
position p;
identifier match.s;
@@
s@p

@good1@
identifier match.s;
expression list[5] es;
position ref.p;
@@
fb_find_mode(es,&s@p,...)

@bad depends on  !good1@
position ref.p;
identifier match.s;
@@
s@p

@depends on forall !bad disable optional_qualifier@
identifier match.s;
@@
static
+ const
struct fb_videomode s;

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

Use container_of instead of casting first structure member.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

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>