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[PATCH] tgafb: sync-on-green support fixes

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This sets up the deep register of the TGA ASIC as well as the blank pedestal
of the Bt463 RAMDAC correctly for the sync-on-green mode.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: James Simmons <jsimmons@infradead.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Maciej W. Rozycki 2007-02-12 00:54:57 -08:00 committed by Linus Torvalds
parent 1b2f2fe8ac
commit a524d946bd
1 changed files with 5 additions and 3 deletions
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8
drivers/video/tgafb.c
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@ -197,7 +197,9 @@ tgafb_set_par(struct fb_info *info)
while (TGA_READ_REG(par, TGA_CMD_STAT_REG) & 1) /* wait for not busy */
continue;
mb();
TGA_WRITE_REG(par, deep_presets[tga_type], TGA_DEEP_REG);
TGA_WRITE_REG(par, deep_presets[tga_type] |
(par->sync_on_green ? 0x0 : 0x00010000),
TGA_DEEP_REG);
while (TGA_READ_REG(par, TGA_CMD_STAT_REG) & 1) /* wait for not busy */
continue;
mb();
@ -261,11 +263,11 @@ tgafb_set_par(struct fb_info *info)
} else { /* 24-plane or 24plusZ */
/* Init BT463 registers. */
/* Init BT463 RAMDAC registers. */
BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_0, 0x40);
BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_1, 0x08);
BT463_WRITE(par, BT463_REG_ACC, BT463_CMD_REG_2,
(par->sync_on_green ? 0x80 : 0x40));
(par->sync_on_green ? 0xc0 : 0x40));
BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_0, 0xff);
BT463_WRITE(par, BT463_REG_ACC, BT463_READ_MASK_1, 0xff);