[PATCH] pm2fb: Blanking fixes

- Current blanking code forces +ve (h|v)sync. Correct, match 2.4
  behaviour, and introduce VESA constants for clarity.
Signed-off-by: Jim Hague <jim.hague@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/video/pm2fb.c

@@ -973,24 +973,26 @@ static int pm2fb_blank(int blank_mode, struct fb_info *info)
 
 	DPRINTK("blank_mode %d\n", blank_mode);
 
-	/* Turn everything on, then disable as requested. */
-	video |= (PM2F_VIDEO_ENABLE | PM2F_HSYNC_MASK | PM2F_VSYNC_MASK);
-
 	switch (blank_mode) {
-	case 0: 	/* Screen: On; HSync: On, VSync: On */
+	case 0:
+		/* Screen: On */
+		video |= PM2F_VIDEO_ENABLE;
 		break;
-	case 1: 	/* Screen: Off; HSync: On, VSync: On */
+	case VESA_NO_BLANKING + 1:
+		/* Screen: Off */
 		video &= ~PM2F_VIDEO_ENABLE;
 		break;
-	case 2: /* Screen: Off; HSync: On, VSync: Off */
-		video &= ~(PM2F_VIDEO_ENABLE | PM2F_VSYNC_MASK | PM2F_BLANK_LOW );
+	case VESA_VSYNC_SUSPEND + 1:
+		/* VSync: Off */
+		video &= ~(PM2F_VSYNC_MASK | PM2F_BLANK_LOW );
 		break;
-	case 3: /* Screen: Off; HSync: Off, VSync: On */
-		video &= ~(PM2F_VIDEO_ENABLE | PM2F_HSYNC_MASK | PM2F_BLANK_LOW );
+	case VESA_HSYNC_SUSPEND + 1:
+		/* HSync: Off */
+		video &= ~(PM2F_HSYNC_MASK | PM2F_BLANK_LOW );
 		break;
-	case 4: /* Screen: Off; HSync: Off, VSync: Off */
-		video &= ~(PM2F_VIDEO_ENABLE | PM2F_VSYNC_MASK | PM2F_HSYNC_MASK|
-			   PM2F_BLANK_LOW);
+	case VESA_POWERDOWN + 1:
+		/* HSync: Off, VSync: Off */
+		video &= ~(PM2F_VSYNC_MASK | PM2F_HSYNC_MASK| PM2F_BLANK_LOW);
 		break;
 	}
 	set_video(par, video);