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s3fb: fix 15/16bpp modes with over 115MHz pixclocks on 86C365 Trio3D 

Enable pixel multiplexing in 15/16bpp modes when pixclock is over 115MHz
on Trio3D (86C365) cards to fix artifacts on the left side of screen.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Acked-by: Ondrej Zajicek <santiago@crfreenet.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Ondrej Zary 2011-03-01 19:18:27 +00:00 committed by Paul Mundt
parent 5694f9ce58
commit 3827d10ed4
1 changed files with 18 additions and 0 deletions
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18
drivers/video/s3fb.c
View File

@ -675,6 +675,15 @@ static int s3fb_set_par(struct fb_info *info)
svga_wcrt_mask(par->state.vgabase, 0x67, 0x20, 0xF0);
else
svga_wcrt_mask(par->state.vgabase, 0x67, 0x30, 0xF0);
} else if (par->chip == CHIP_365_TRIO3D) {
svga_wcrt_mask(par->state.vgabase, 0x50, 0x10, 0x30);
if (info->var.pixclock > 8695) {
svga_wcrt_mask(par->state.vgabase, 0x67, 0x30, 0xF0);
hmul = 2;
} else {
svga_wcrt_mask(par->state.vgabase, 0x67, 0x20, 0xF0);
multiplex = 1;
}
} else {
svga_wcrt_mask(par->state.vgabase, 0x50, 0x10, 0x30);
svga_wcrt_mask(par->state.vgabase, 0x67, 0x30, 0xF0);
@ -691,6 +700,15 @@ static int s3fb_set_par(struct fb_info *info)
svga_wcrt_mask(par->state.vgabase, 0x67, 0x40, 0xF0);
else
svga_wcrt_mask(par->state.vgabase, 0x67, 0x50, 0xF0);
} else if (par->chip == CHIP_365_TRIO3D) {
svga_wcrt_mask(par->state.vgabase, 0x50, 0x10, 0x30);
if (info->var.pixclock > 8695) {
svga_wcrt_mask(par->state.vgabase, 0x67, 0x50, 0xF0);
hmul = 2;
} else {
svga_wcrt_mask(par->state.vgabase, 0x67, 0x40, 0xF0);
multiplex = 1;
}
} else {
svga_wcrt_mask(par->state.vgabase, 0x50, 0x10, 0x30);
svga_wcrt_mask(par->state.vgabase, 0x67, 0x50, 0xF0);