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viafb: remove temporary start address setting 

Currently the start address is set to an initial value every time
viafb_setmode is called.

This is not done consistently along graphic cores and not even the whole
address but often only parts of it.  On top of that it seems useless as
the real/final address will be set by viafb_set_start_addr a few lines
later.

Remove this superfluous initalization to shrink register initalization and
as a start to decouple primary and secondary display.  Code cleanup, no
notable runtime change expected.

Signed-off-by: Florian 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: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Florian Tobias Schandinat 2009-09-22 16:47:12 -07:00 committed by Linus Torvalds
parent 0e3ca33ac7
commit 3915a927aa
1 changed files with 0 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/video/via/viamode.c
View File

@ -100,12 +100,8 @@ struct io_reg CN400_ModeXregs[] = { {VIASR, SR10, 0xFF, 0x01},
{VIACR, CR0F, 0xFF, 0x00}, /* Cursor Localtion Low */
{VIACR, CR32, 0xFF, 0x00},
{VIACR, CR33, 0xFF, 0x00},
{VIACR, CR34, 0xFF, 0x00},
{VIACR, CR35, 0xFF, 0x00},
{VIACR, CR36, 0x08, 0x00},
{VIACR, CR62, 0xFF, 0x00}, /* Secondary Display Starting Address */
{VIACR, CR63, 0xFF, 0x00}, /* Secondary Display Starting Address */
{VIACR, CR64, 0xFF, 0x00}, /* Secondary Display Starting Address */
{VIACR, CR69, 0xFF, 0x00},
{VIACR, CR6A, 0xFF, 0x40},
{VIACR, CR6B, 0xFF, 0x00},
@ -159,16 +155,12 @@ struct io_reg CN700_ModeXregs[] = { {VIASR, SR10, 0xFF, 0x01},
{VIASR, CR30, 0xFF, 0x04},
{VIACR, CR32, 0xFF, 0x00},
{VIACR, CR33, 0x7F, 0x00},
{VIACR, CR34, 0xFF, 0x00},
{VIACR, CR35, 0xFF, 0x00},
{VIACR, CR36, 0xFF, 0x31},
{VIACR, CR41, 0xFF, 0x80},
{VIACR, CR42, 0xFF, 0x00},
{VIACR, CR55, 0x80, 0x00},
{VIACR, CR5D, 0x80, 0x00}, /*Horizontal Retrace Start bit[11] should be 0*/
{VIACR, CR62, 0xFF, 0x00}, /* Secondary Display Starting Address */
{VIACR, CR63, 0xFF, 0x00}, /* Secondary Display Starting Address */
{VIACR, CR64, 0xFF, 0x00}, /* Secondary Display Starting Address */
{VIACR, CR68, 0xFF, 0x67}, /* Default FIFO For IGA2 */
{VIACR, CR69, 0xFF, 0x00},
{VIACR, CR6A, 0xFD, 0x40},
@ -233,9 +225,6 @@ struct io_reg KM400_ModeXregs[] = {
{VIACR, CR55, 0x80, 0x00},
{VIACR, CR5D, 0x80, 0x00},
{VIACR, CR36, 0xFF, 0x01}, /* Power Mangement 3 */
{VIACR, CR62, 0xFF, 0x00}, /* Secondary Display Starting Address */
{VIACR, CR63, 0xFF, 0x00}, /* Secondary Display Starting Address */
{VIACR, CR64, 0xFF, 0x00}, /* Secondary Display Starting Address */
{VIACR, CR68, 0xFF, 0x67}, /* Default FIFO For IGA2 */
{VIACR, CR6A, 0x20, 0x20}, /* Extended FIFO On */
{VIACR, CR7A, 0xFF, 0x01}, /* LCD Scaling Parameter 1 */
@ -285,14 +274,9 @@ struct io_reg CX700_ModeXregs[] = { {VIASR, SR10, 0xFF, 0x01},
{VIACR, CR0F, 0xFF, 0x00}, /* Cursor Localtion Low */
{VIACR, CR32, 0xFF, 0x00},
{VIACR, CR33, 0xFF, 0x00},
{VIACR, CR34, 0xFF, 0x00},
{VIACR, CR35, 0xFF, 0x00},
{VIACR, CR36, 0x08, 0x00},
{VIACR, CR47, 0xC8, 0x00}, /* Clear VCK Plus. */
{VIACR, CR62, 0xFF, 0x00}, /* Secondary Display Starting Address */
{VIACR, CR63, 0xFF, 0x00}, /* Secondary Display Starting Address */
{VIACR, CR64, 0xFF, 0x00}, /* Secondary Display Starting Address */
{VIACR, CRA3, 0xFF, 0x00}, /* Secondary Display Starting Address */
{VIACR, CR69, 0xFF, 0x00},
{VIACR, CR6A, 0xFF, 0x40},
{VIACR, CR6B, 0xFF, 0x00},
@ -340,7 +324,6 @@ struct io_reg CLE266_ModeXregs[] = { {VIASR, SR1E, 0xF0, 0x00},
{VIASR, SR1A, 0xFB, 0x08},
{VIACR, CR32, 0xFF, 0x00},
{VIACR, CR34, 0xFF, 0x00},
{VIACR, CR35, 0xFF, 0x00},
{VIACR, CR36, 0x08, 0x00},
{VIACR, CR6A, 0xFF, 0x80},