[PATCH] atyfb: Improve blanking

Force blanking signal and disable display requests when blanked.  Don't
disable LCD backlight with FB_BLANK_NORMAL.
Signed-off-by: NVille Syrjälä <syrjala@sci.fi>
Signed-off-by: NAntonino Daplas <adaplas@pol.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/video/aty/atyfb_base.c

@@ -2645,16 +2645,16 @@ static int __init store_video_par(char *video_str, unsigned char m64_num)
 static int atyfb_blank(int blank, struct fb_info *info)
 {
 	struct atyfb_par *par = (struct atyfb_par *) info->par;
-	u8 gen_cntl;
+	u32 gen_cntl;
 
 	if (par->lock_blank || par->asleep)
 		return 0;
 
 #ifdef CONFIG_PMAC_BACKLIGHT
-	if ((_machine == _MACH_Pmac) && blank)
+	if ((_machine == _MACH_Pmac) && blank > FB_BLANK_NORMAL)
 		set_backlight_enable(0);
 #elif defined(CONFIG_FB_ATY_GENERIC_LCD)
-	if (par->lcd_table && blank &&
+	if (par->lcd_table && blank > FB_BLANK_NORMAL &&
 	    (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) {
 		u32 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
 		pm &= ~PWR_BLON;
@@ -2662,31 +2662,31 @@ static int atyfb_blank(int blank, struct fb_info *info)
 	}
 #endif
 
-	gen_cntl = aty_ld_8(CRTC_GEN_CNTL, par);
+	gen_cntl = aty_ld_le32(CRTC_GEN_CNTL, par);
 	switch (blank) {
         	case FB_BLANK_UNBLANK:
-			gen_cntl &= ~(0x4c);
+			gen_cntl &= ~0x400004c;
 			break;
 		case FB_BLANK_NORMAL:
-			gen_cntl |= 0x40;
+			gen_cntl |= 0x4000040;
 			break;
 		case FB_BLANK_VSYNC_SUSPEND:
-			gen_cntl |= 0x8;
+			gen_cntl |= 0x4000048;
 			break;
 		case FB_BLANK_HSYNC_SUSPEND:
-			gen_cntl |= 0x4;
+			gen_cntl |= 0x4000044;
 			break;
 		case FB_BLANK_POWERDOWN:
-			gen_cntl |= 0x4c;
+			gen_cntl |= 0x400004c;
 			break;
 	}
-	aty_st_8(CRTC_GEN_CNTL, gen_cntl, par);
+	aty_st_le32(CRTC_GEN_CNTL, gen_cntl, par);
 
 #ifdef CONFIG_PMAC_BACKLIGHT
-	if ((_machine == _MACH_Pmac) && !blank)
+	if ((_machine == _MACH_Pmac) && blank <= FB_BLANK_NORMAL)
 		set_backlight_enable(1);
 #elif defined(CONFIG_FB_ATY_GENERIC_LCD)
-	if (par->lcd_table && !blank &&
+	if (par->lcd_table && blank <= FB_BLANK_NORMAL &&
 	    (aty_ld_lcd(LCD_GEN_CNTL, par) & LCD_ON)) {
 		u32 pm = aty_ld_lcd(POWER_MANAGEMENT, par);
 		pm |= PWR_BLON;