Commit 8594ac33 authored by Florian Tobias Schandinat's avatar Florian Tobias Schandinat Committed by Linus Torvalds

viafb: remove LVDS initialization

At least for VX800 this initialization is not very good as some parts of
the register are written with reserved values.  This makes the display go
white in some configurations and not usable until the framebuffer is
removed.  It's better to not initialize it as it allows to use a
previously (by BIOS) correctly configured display.

This patch makes some displays work but might cause problems on others.
This is bad but can not be easily avoided.  If this causes some
regressions it's probably the best to fix it in the 'active' display setup
code.
Signed-off-by: default avatarFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Scott Fang <ScottFang@viatech.com.cn>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Harald Welte <laforge@gnumonks.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b852abc2
...@@ -309,8 +309,7 @@ struct io_reg CX700_ModeXregs[] = { {VIASR, SR10, 0xFF, 0x01}, ...@@ -309,8 +309,7 @@ struct io_reg CX700_ModeXregs[] = { {VIASR, SR10, 0xFF, 0x01},
{VIACR, CR96, 0xFF, 0x00}, {VIACR, CR96, 0xFF, 0x00},
{VIACR, CR97, 0xFF, 0x00}, {VIACR, CR97, 0xFF, 0x00},
{VIACR, CR99, 0xFF, 0x00}, {VIACR, CR99, 0xFF, 0x00},
{VIACR, CR9B, 0xFF, 0x00}, {VIACR, CR9B, 0xFF, 0x00}
{VIACR, CRD2, 0xFF, 0xFF} /* TMDS/LVDS control register. */
}; };
/* Video Mode Table */ /* Video Mode Table */
......
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