The patch titled
tridentfb: preserve memory type settings
has been added to the -mm tree. Its filename is
tridentfb-preserve-memory-type-settings.patch
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------------------------------------------------------
Subject: tridentfb: preserve memory type settings
From: Krzysztof Helt <krzysztof.h1@xxxxx>
Do not overwrite bits which contain memory type settings. It removes
noise pixels ("snow") on Blade3D and 3DImage chips.
Signed-off-by: Krzysztof Helt <krzysztof.h1@xxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/tridentfb.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff -puN drivers/video/tridentfb.c~tridentfb-preserve-memory-type-settings drivers/video/tridentfb.c
--- a/drivers/video/tridentfb.c~tridentfb-preserve-memory-type-settings
+++ a/drivers/video/tridentfb.c
@@ -1095,7 +1095,10 @@ static int tridentfb_set_par(struct fb_i
vga_mm_wseq(par->io_virt, 4, 0x0E); /* memory mode enable bitmaps ?? */
/* divide clock by 2 if 32bpp chain4 mode display and CPU path */
- write3CE(par, MiscExtFunc, (bpp == 32) ? 0x1A : 0x12);
+ tmp = read3CE(par, MiscExtFunc) & 0xF0;
+ if (bpp == 32)
+ tmp |= 8;
+ write3CE(par, MiscExtFunc, tmp | 0x12);
write3CE(par, 0x5, 0x40); /* no CGA compat, allow 256 col */
write3CE(par, 0x6, 0x05); /* graphics mode */
write3CE(par, 0x7, 0x0F); /* planes? */
_
Patches currently in -mm which might be from krzysztof.h1@xxxxx are
tridentfb-remove-misplaced-enable_mmio.patch
tridentfb-improve-clock-setting-accuracy.patch
drivers-video-pnx4008-eliminate-double-free.patch
tridentfb-replace-macros-with-functions.patch
tridentfb-convert-fb_info-into-allocated-one.patch
tridentfb-move-global-pseudo-palette-into-structure.patch
tridentfb-move-global-chip_id-into-structure.patch
tridentfb-move-global-flat-panel-variable-into-structure.patch
tridentfb-convert-is_blade-and-is_xp-macros-into-functions.patch
tridentfb-move-global-acceleration-hooks-into-structure.patch
tridentfb-make-use-of-functions-and-constants-from-the-vgah.patch
tridentfb-fix-timing-calculations.patch
tridentfb-use-mmio-access-for-clock-setting.patch
tridentfb-fix-clock-settings-for-older-trident-96xx-chips.patch
tridentfb-improve-probe-function.patch
tridentfb-improved-register-values-on-tgui-9680.patch
tridentfb-add-tgui-9440-support.patch
tridentfb-fix-unitialized-pseudo_palette.patch
tridentfb-improve-check_var-function.patch
tridentfb-preserve-memory-type-settings.patch
amifb-test-virtual-screen-range-before-subtraction-on-unsigned.patch
atafb-test-virtual-screen-range-before-subtraction-on-unsigned.patch
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