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video: fbdev: atari: Fix inverse handling

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Currently, the "inverse" option does not do anything, as it just sets a
flag, which is further unused.

Fix this by calling fb_invert_cmaps() instead, like other drivers do.
As this only affects the console colormap, this does not affect X.
Update the documentation to match the actual behavior.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Geert Uytterhoeven 2022-07-11 17:50:27 +02:00 • committed by Helge Deller
parent 211f88e83f
commit c7ef5e285c
2 changed files with 3 additions and 5 deletions
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4
Documentation/m68k/kernel-options.rst
View file

@ -367,8 +367,8 @@ activated by a "external:" sub-option.
4.1.2) inverse 4.1.2) inverse
-------------- --------------
Invert the display. This affects both, text (consoles) and graphics Invert the display. This affects only text consoles.
(X) display. Usually, the background is chosen to be black. With this Usually, the background is chosen to be black. With this
option, you can make the background white. option, you can make the background white.
4.1.3) font 4.1.3) font

4
drivers/video/fbdev/atafb.c
View file

@ -236,8 +236,6 @@ static int *MV300_reg = MV300_reg_8bit;
#endif /* ATAFB_EXT */ #endif /* ATAFB_EXT */
static int inverse;
/* /*
* struct fb_ops { * struct fb_ops {
* * open/release and usage marking * * open/release and usage marking
@ -2971,7 +2969,7 @@ static int __init atafb_setup(char *options)
default_par = temp; default_par = temp;
mode_option = this_opt; mode_option = this_opt;
} else if (!strcmp(this_opt, "inverse")) } else if (!strcmp(this_opt, "inverse"))
inverse = 1; fb_invert_cmaps();
else if (!strncmp(this_opt, "hwscroll_", 9)) { else if (!strncmp(this_opt, "hwscroll_", 9)) {
hwscroll = simple_strtoul(this_opt + 9, NULL, 10); hwscroll = simple_strtoul(this_opt + 9, NULL, 10);
if (hwscroll < 0) if (hwscroll < 0)