linux.git/drivers/video/console/Kconfig, branch v4.12

video: console: Remove reference to CONFIG_8xx

2017-04-21T14:56:10+00:00

CONFIG_8xx is deprecated and should soon be removed in favor
of CONFIG_PPC_8xx.

Signed-off-by: Christophe Leroy 
Cc: "David S. Miller" 
Signed-off-by: Bartlomiej Zolnierkiewicz

console: Make persistent scrollback a boot parameter

2017-01-25T10:54:02+00:00

The impact of the persistent scrollback feature on the code size is
rather small, so the config option is removed. The feature stays
disabled by default and can be enabled by using the boot command line
parameter 'vgacon.scrollback_persistent=1' or by setting
VGACON_SOFT_SCROLLBACK_PERSISTENT_ENABLE_BY_DEFAULT=y.

Signed-off-by: Manuel Schölling 
Suggested-by: Bartlomiej Zolnierkiewicz 
Signed-off-by: Greg Kroah-Hartman

console: Add persistent scrollback buffers for all VGA consoles

2017-01-25T10:54:02+00:00

Add a scrollback buffers for each VGA console. The benefit is that
the scrollback history is not flushed when switching between consoles
but is persistent.
The buffers are allocated on demand when a new console is opened.

This breaks tools like clear_console that rely on flushing the
scrollback history by switching back and forth between consoles
which is why this feature is disabled by default.
Use the escape sequence \e[3J instead for flushing the buffer.

Signed-off-by: Manuel Schölling 
Reviewed-by: Andrey Utkin 
Tested-by: Andrey Utkin 
Tested-by: Adam Borowski 
Signed-off-by: Greg Kroah-Hartman

openrisc: prevent VGA console, fix builds

2016-12-12T14:10:29+00:00

OpenRISC does not support VGA console, so prevent that kconfig symbol
from being enabled for OpenRISC, thus fixing these build errors:

   drivers/built-in.o: In function `vgacon_save_screen':
   vgacon.c:(.text+0x20e0): undefined reference to `screen_info'
   vgacon.c:(.text+0x20e8): undefined reference to `screen_info'
   drivers/built-in.o: In function `vgacon_init':
   vgacon.c:(.text+0x284c): undefined reference to `screen_info'
   vgacon.c:(.text+0x2850): undefined reference to `screen_info'
   drivers/built-in.o: In function `vgacon_startup':
   vgacon.c:(.text+0x28d8): undefined reference to `screen_info'
   drivers/built-in.o:vgacon.c:(.text+0x28f0): more undefined references to `screen_info' follow

Signed-off-by: Randy Dunlap 
Reported-by: kbuild test robot 
Cc: Chen Gang 
Cc: Jonas Bonn 
Signed-off-by: Stafford Horne

Merge tag 'fbdev-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux

2015-09-08T23:42:55+00:00

Pull fbdev updates from Tomi Valkeinen:
 "Minor fixes and cleanups"

* tag 'fbdev-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
  video: fbdev: atmel_lcdfb: remove useless include
  video: fbdev: pxa168fb: Use devm_clk_get
  fbdev: ssd1307fb: fix error return code
  fbdev: fix snprintf() limit in show_bl_curve()
  video: fbdev: s3c-fb: Constify platform_device_id
  video: fbdev: atmel: fix warning for const return value
  video: fbdev: Drop owner assignment from platform_driver
  video: fbdev: Drop owner assignment from i2c_driver
  fbdev: remove unnecessary memset in vfb
  framebuffer: disable vgacon on microblaze arch
  fbdev: udlfb: remove unneeded initialization in few places
  fbdev: Allow compile test of GPIO consumers if !GPIOLIB
  fbdev: fix cea_modes array size

drivers/video/concole: add negative dependency for VGA_CONSOLE on ARC

2015-09-04T23:54:41+00:00

Architectures which support VGA console must define screen_info
structurture from "uapi/linux/screen_info.h".  Otherwise undefined
symbol error occurs.  Usually it's defined in "setup.c" for each
architecture.

If an architecture does not support VGA console (ARC's case) there are 2
ways: define a dummy instance of screen_info or add a negative
dependency for VGA_CONSOLE in to prevent selecting this option.

I've implemented the second way.  However the best solution is to add
HAVE_VGA_CONSOLE option for targets which support VGA console.  Then
turn off VGA_CONSOLE by default and add dependency to HAVE_VGA_CONSOLE.
But right now it's better to just add a negative dependency for ARC and
then consider how to collaborate about this issue with maintainers of
other architectures.

Signed-off-by: Yuriy Kolerov 
Acked-by: Geert Uytterhoeven 
Cc: Jean-Christophe Plagniol-Villard 
Cc: Tomi Valkeinen 
Cc: Jaya Kumar 
Cc: Vineet Gupta 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

framebuffer: disable vgacon on microblaze arch

2015-08-20T07:53:25+00:00

Fix an allmodconfig link failer on microblaze:
  drivers/built-in.o: In function `vgacon_save_screen':
  drivers/video/console/.tmp_vgacon.o:(.text+0x8fc10):
    undefined reference to `screen_info'

Disable vgacon on microblaze because the symbol
  struct screen_info screen_info;
is not defined for the microblaze arch.

Signed-off-by: Nicolai Stange 
Signed-off-by: Tomi Valkeinen

console/dummy: Move screen size selection from CPP to Kconfig

2015-01-13T12:54:48+00:00

PA-RISC already handled the dummy console screen size selection in
Kconfig, so generalize this to other platforms.

ARM keeps on using screen_info, which is filled in by
platform-specific code, or from ATAGS.

Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Tomi Valkeinen

video: vgacon: Don't build on arm64

2014-01-17T08:57:45+00:00

arm64 is unlikely to have a VGA console and does not export screen_info
causing build failures if the driver is build, for example in all*config.
Add a dependency on !ARM64 to prevent this.

This list is getting quite long, it may be easier to depend on a symbol
which architectures that do support the driver can select.

Signed-off-by: Mark Brown 
[tomi.valkeinen@ti.com: moved && to first modified line]
Signed-off-by: Tomi Valkeinen

fbdev: fbcon: select VT_HW_CONSOLE_BINDING

2013-08-02T23:17:51+00:00

fbdev provides framebuffer hotplugging, hence, we need to allow fbcon to
unbind from framebuffers. Unfortunately, fbcon_fb_unbind() cannot unbind
from the last framebuffer, unless console-unbinding is supported.

Fixing fbcon_unbind() to return 0 caused some horrible NULL-derefs in the
VT layer and I couldn't figure out why. Hence, lets just require
console-unbinding so fbdev hotplugging works with fbcon.

Signed-off-by: David Herrmann 
Link: http://lkml.kernel.org/r/1375445127-15480-9-git-send-email-dh.herrmann@gmail.com
Signed-off-by: H. Peter Anvin