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Commit a524d946 authored by Maciej W. Rozycki's avatar Maciej W. Rozycki Committed by Linus Torvalds
Browse files

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



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: default avatarMaciej W. Rozycki <macro@linux-mips.org>
Cc: James Simmons <jsimmons@infradead.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 1b2f2fe8

drivers/video/tgafb.c

+5 −3
Original line number Diff line number Diff line
@@ -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);