linux-toradex.git/drivers/video/console, branch v4.9.16 Linux kernel for Apalis and Colibri modules tty: vt, convert more macros to functions 2016-06-25T16:04:48+00:00 Jiri Slaby jslaby@suse.cz 2016-06-23T11:34:35+00:00 6ca8dfd78187d8238abc5b2996848a0c8f07948d Namely convert: * IS_FG -> con_is_fg * DO_UPDATE -> con_should_update * CON_IS_VISIBLE -> con_is_visible DO_UPDATE was a weird name for a yes/no answer, so the new name is con_should_update. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Thomas Winischhofer <thomas@winischhofer.net> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: linux-usb@vger.kernel.org Cc: linux-fbdev@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Namely convert:
* IS_FG -> con_is_fg
* DO_UPDATE -> con_should_update
* CON_IS_VISIBLE -> con_is_visible

DO_UPDATE was a weird name for a yes/no answer, so the new name is
con_should_update.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: linux-usb@vger.kernel.org
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
tty: vt, remove consw->con_bmove 2016-06-25T16:04:48+00:00 Jiri Slaby jslaby@suse.cz 2016-06-23T11:34:28+00:00 52ad1f38b4f6e2f2133668247036ad64ef7ae18a It is never called since commit 81732c3b2fede (tty vt: Fix line garbage in virtual console on command line edition) in 3.7. So remove all the callbacks. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Thomas Winischhofer <thomas@winischhofer.net> Cc: linux-usb@vger.kernel.org Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: linux-fbdev@vger.kernel.org Cc: linux-parisc@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
It is never called since commit 81732c3b2fede (tty vt: Fix line
garbage in virtual console on command line edition) in 3.7. So remove
all the callbacks.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: linux-usb@vger.kernel.org
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
tty: vt, consw->con_set_palette cleanup 2016-06-25T16:04:48+00:00 Jiri Slaby jslaby@suse.cz 2016-06-23T11:34:27+00:00 709280da6238629c3b488b7be87c6d9185f4d03e * allow NULL consw->con_set_palette (some consoles define an empty hook) * => remove empty hooks now * return value of consw->con_set_palette is never checked => make the function void * document consw->con_set_palette a bit Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Thomas Winischhofer <thomas@winischhofer.net> Cc: linux-usb@vger.kernel.org Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: linux-fbdev@vger.kernel.org Cc: linux-parisc@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
* allow NULL consw->con_set_palette (some consoles define an empty
  hook)
* => remove empty hooks now
* return value of consw->con_set_palette is never checked => make the
  function void
* document consw->con_set_palette a bit

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: linux-usb@vger.kernel.org
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
tty: vt, consw->con_scrolldelta cleanup 2016-06-25T16:04:48+00:00 Jiri Slaby jslaby@suse.cz 2016-06-23T11:34:26+00:00 97293de977365fe672daec2523e66ef457104921 * allow NULL consw->con_scrolldelta (some consoles define an empty hook) * => remove empty hooks now * return value of consw->con_scrolldelta is never checked => make the function void * document consw->con_scrolldelta a bit Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Thomas Winischhofer <thomas@winischhofer.net> Cc: linux-usb@vger.kernel.org Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: linux-fbdev@vger.kernel.org Cc: linux-parisc@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
* allow NULL consw->con_scrolldelta (some consoles define an empty
  hook)
* => remove empty hooks now
* return value of consw->con_scrolldelta is never checked => make the
  function void
* document consw->con_scrolldelta a bit

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: linux-usb@vger.kernel.org
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
tty: vt, make color_table const 2016-04-30T16:26:55+00:00 Jiri Slaby jslaby@suse.cz 2016-03-31T08:08:16+00:00 8ede5cce4f0baff77ef63aa3cb3afc65d0317e0b This means all ->con_set_palette have to have the second parameter const too now. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
This means all ->con_set_palette have to have the second parameter
const too now.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fbcon: set a default value to blink interval 2016-02-26T11:19:55+00:00 Jean-Philippe Brucker jean-philippe.brucker@arm.com 2016-02-15T18:41:33+00:00 a1e533ec07d583d01349ef13c0c965b8633e1b91 Since commit 27a4c827c34ac4256a190cc9d24607f953c1c459 fbcon: use the cursor blink interval provided by vt two attempts have been made at fixing a possible hang caused by cursor_timer_handler. That function registers a timer to be triggered at "jiffies + fbcon_ops.cur_blink_jiffies". A new case had been encountered during initialisation of clcd-pl11x: fbcon_fb_registered do_fbcon_takeover -> do_register_con_driver fbcon_startup (A) add_cursor_timer (with cur_blink_jiffies = 0) -> do_bind_con_driver visual_init fbcon_init (B) cur_blink_jiffies = msecs_to_jiffies(vc->vc_cur_blink_ms); If we take an softirq anywhere between A and B (and we do), cursor_timer_handler executes indefinitely. Instead of patching all possible paths that lead to this case one at a time, fix the issue at the source and initialise cur_blink_jiffies to 200ms when allocating fbcon_ops. This was its default value before aforesaid commit. fbcon_cursor or fbcon_init will refine this value downstream. Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com> Cc: <stable@vger.kernel.org> # v4.2 Tested-by: Scot Doyle <lkml14@scotdoyle.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> 
Since commit 27a4c827c34ac4256a190cc9d24607f953c1c459
	fbcon: use the cursor blink interval provided by vt

two attempts have been made at fixing a possible hang caused by
cursor_timer_handler. That function registers a timer to be triggered at
"jiffies + fbcon_ops.cur_blink_jiffies".

A new case had been encountered during initialisation of clcd-pl11x:

    fbcon_fb_registered
    do_fbcon_takeover

    ->  do_register_con_driver
        fbcon_startup
    (A) add_cursor_timer (with cur_blink_jiffies = 0)

    ->  do_bind_con_driver
        visual_init
        fbcon_init
    (B) cur_blink_jiffies = msecs_to_jiffies(vc->vc_cur_blink_ms);

If we take an softirq anywhere between A and B (and we do),
cursor_timer_handler executes indefinitely.

Instead of patching all possible paths that lead to this case one at a
time, fix the issue at the source and initialise cur_blink_jiffies to
200ms when allocating fbcon_ops. This was its default value before
aforesaid commit. fbcon_cursor or fbcon_init will refine this value
downstream.

Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Cc: <stable@vger.kernel.org> # v4.2
Tested-by: Scot Doyle <lkml14@scotdoyle.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
fbcon: initialize blink interval before calling fb_set_par 2015-10-18T05:00:39+00:00 Scot Doyle lkml14@scotdoyle.com 2015-10-09T15:08:10+00:00 f235f664a8afabccf863a5dee4777d2d7b676fda Since commit 27a4c827c34ac4256a190cc9d24607f953c1c459 fbcon: use the cursor blink interval provided by vt a PPC64LE kernel fails to boot when fbcon_add_cursor_timer uses an uninitialized ops->cur_blink_jiffies. Prevent by initializing in fbcon_init before the call to info->fbops->fb_set_par. Reported-and-tested-by: Alistair Popple <alistair@popple.id.au> Signed-off-by: Scot Doyle <lkml14@scotdoyle.com> Cc: <stable@vger.kernel.org> [v4.2] Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Since commit 27a4c827c34ac4256a190cc9d24607f953c1c459
    fbcon: use the cursor blink interval provided by vt

a PPC64LE kernel fails to boot when fbcon_add_cursor_timer uses an
uninitialized ops->cur_blink_jiffies. Prevent by initializing
in fbcon_init before the call to info->fbops->fb_set_par.

Reported-and-tested-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Scot Doyle <lkml14@scotdoyle.com>
Cc: <stable@vger.kernel.org> [v4.2]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge tag 'fbdev-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux 2015-09-08T23:42:55+00:00 Linus Torvalds torvalds@linux-foundation.org 2015-09-08T23:42:55+00:00 fa815580fb87d1b8c218f9eba8122b2fc3f1a68c 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 
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 Yuriy Kolerov yuriy.kolerov@synopsys.com 2015-09-04T22:42:58+00:00 031e29b5877f31676739dc2f847d04c2c0732034 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 <yuriy.kolerov@synopsys.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Jaya Kumar <jayalk@intworks.biz> Cc: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
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 <yuriy.kolerov@synopsys.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Jaya Kumar <jayalk@intworks.biz>
Cc: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
framebuffer: disable vgacon on microblaze arch 2015-08-20T07:53:25+00:00 Nicolai Stange nicstange@gmail.com 2015-06-17T19:40:33+00:00 48fd8ecf29e3c1199432e173858f5ca4bc529738 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 <nicstange@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> 
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 <nicstange@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>