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tty: vt: stop using -1 for blank mode in consw::con_blank()

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-1 is the same as VESA_VSYNC_SUSPEND in all con_blank() implementations.
So we can remove this special case from vgacon now too.

Despite con_blank() of fbcon looks complicated, the "if
(!fbcon_is_inactive(vc, info))" branch is not taken as we set
"ops->graphics = 1;" few lines above. So what matters there (as in all
other blank implementations except vgacon) is if 'blank' is zero or not.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Tested-by: Helge Deller <deller@gmx.de> # parisc STI console
Link: https://lore.kernel.org/r/20240122110401.7289-32-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby (SUSE) 2024-01-22 12:03:45 +01:00 committed by Greg Kroah-Hartman
parent 8d5cc8eed7
commit 735a51943f
2 changed files with 1 additions and 2 deletions
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2
drivers/tty/vt/vt.c
View file

@ -4347,7 +4347,7 @@ void do_blank_screen(int entering_gfx)
if (entering_gfx) {
hide_cursor(vc);
save_screen(vc);
vc->vc_sw->con_blank(vc, -1, 1);
vc->vc_sw->con_blank(vc, 1, 1);
console_blanked = fg_console + 1;
blank_state = blank_off;
set_origin(vc);

1
drivers/video/console/vgacon.c
View file

@ -814,7 +814,6 @@ static int vgacon_blank(struct vc_data *c, int blank, int mode_switch)
/* Tell console.c that it has to restore the screen itself */
return 1;
case 1: /* Normal blanking */
case -1: /* Obsolete */
if (!mode_switch && vga_video_type == VIDEO_TYPE_VGAC) {
vga_pal_blank(&vgastate);
vga_palette_blanked = true;