From: Ondrej Zary <linux@rainbow-software.org>
To: Ondrej Zajicek <santiago@crfreenet.org>
Cc: linux-fbdev@vger.kernel.org,
Kernel development list <linux-kernel@vger.kernel.org>
Subject: [PATCH 3/5] s3fb: fix 15/16bpp modes with over 115MHz pixclocks on 86C365 Trio3D
Date: Tue, 1 Mar 2011 20:18:27 +0100 [thread overview]
Message-ID: <201103012018.30651.linux@rainbow-software.org> (raw)
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>
--- linux-2.6.38-rc4-/drivers/video/s3fb.c 2011-02-20 20:48:41.000000000 +0100
+++ linux-2.6.38-rc4/drivers/video/s3fb.c 2011-02-22 23:31:16.000000000 +0100
@@ -675,6 +675,15 @@
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 @@
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);
--
Ondrej Zary
next reply other threads:[~2011-03-01 19:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-01 19:18 Ondrej Zary [this message]
2011-03-03 8:50 ` [PATCH 3/5] s3fb: fix 15/16bpp modes with over 115MHz pixclocks on 86C365 Trio3D Ondrej Zajicek
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