diff options
| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2022-07-11 18:50:34 +0300 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2022-07-18 08:56:18 +0300 |
| commit | ffcc5b265799f213612984aa27d3711dbc4704b6 (patch) | |
| tree | 396dc774112f119beaaf88bd8a4fd1b32cc2f313 /drivers | |
| parent | 435347edfe900fc29850014898d843cdabb306da (diff) | |
| download | linux-ffcc5b265799f213612984aa27d3711dbc4704b6.tar.xz | |
video: fbdev: atari: Remove backward bug-compatibility
As of v2.1.0, falcon_decode_var() contains a quirk to fix a rounding
error, as explained by Günther Kelleter on Fri, 30 Aug 1996:
This diff removes the now obsolete Falcon video option "pwrsave", and
fixes a rounding error that is triggered by the resolution switching X
server (those who use the pixel clock value 39722 in their /etc/fb.modes
should change it to 39721).
However, this causes the modified video mode returned by
falcon_decode_var() to not match the video mode returned by
falcon_encode_var(). Fix this by dropping the quirk.
Unfortunately /etc/fb.modes in fbset was never updated, so the
"640x480-60" mode still contains the wrong pixclock.
Hence this change may introduce a regression.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/fbdev/atafb.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/video/fbdev/atafb.c b/drivers/video/fbdev/atafb.c index e8b178e732e2..2bc4089865e6 100644 --- a/drivers/video/fbdev/atafb.c +++ b/drivers/video/fbdev/atafb.c @@ -1008,10 +1008,6 @@ static int falcon_decode_var(struct fb_var_screeninfo *var, else if (yres_virtual < yres) yres_virtual = yres; - /* backward bug-compatibility */ - if (var->pixclock > 1) - var->pixclock -= 1; - par->hw.falcon.line_width = bpp * xres / 16; par->hw.falcon.line_offset = bpp * (xres_virtual - xres) / 16; |