X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=drivers%2Fvideo%2Fneofb.c;h=bfb802d26d5af7286a59364c15f50ca9f881e97e;hb=e68f0aee89ebb93aaeedf064e0291d3c19520f7e;hp=25172b2a2a941e15fe684e9130293c019467981d;hpb=c83d12806b6185131ece682de8696d8cfb78df69;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/video/neofb.c b/drivers/video/neofb.c
index 25172b2a2a9..bfb802d26d5 100644
--- a/drivers/video/neofb.c
+++ b/drivers/video/neofb.c
@@ -426,11 +426,11 @@ static void vgaHWProtect(int on)
 {
 	unsigned char tmp;
 
+	tmp = vga_rseq(NULL, 0x01);
 	if (on) {
 		/*
 		 * Turn off screen and disable sequencer.
 		 */
-		tmp = vga_rseq(NULL, 0x01);
 		vga_wseq(NULL, 0x00, 0x01);		/* Synchronous Reset */
 		vga_wseq(NULL, 0x01, tmp | 0x20);	/* disable the display */
 
@@ -439,7 +439,6 @@ static void vgaHWProtect(int on)
 		/*
 		 * Reenable sequencer, then turn on screen.
 		 */
-		tmp = vga_rseq(NULL, 0x01);
 		vga_wseq(NULL, 0x01, tmp & ~0x20);	/* reenable display */
 		vga_wseq(NULL, 0x00, 0x03);		/* clear synchronousreset */
 
@@ -558,14 +557,12 @@ neofb_open(struct fb_info *info, int user)
 {
 	struct neofb_par *par = info->par;
 
-	mutex_lock(&par->open_lock);
 	if (!par->ref_count) {
 		memset(&par->state, 0, sizeof(struct vgastate));
 		par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS;
 		save_vga(&par->state);
 	}
 	par->ref_count++;
-	mutex_unlock(&par->open_lock);
 
 	return 0;
 }
@@ -575,16 +572,13 @@ neofb_release(struct fb_info *info, int user)
 {
 	struct neofb_par *par = info->par;
 
-	mutex_lock(&par->open_lock);
-	if (!par->ref_count) {
-		mutex_unlock(&par->open_lock);
+	if (!par->ref_count)
 		return -EINVAL;
-	}
+
 	if (par->ref_count == 1) {
 		restore_vga(&par->state);
 	}
 	par->ref_count--;
-	mutex_unlock(&par->open_lock);
 
 	return 0;
 }
@@ -648,10 +642,10 @@ neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 	var->blue.msb_right = 0;
 	var->transp.msb_right = 0;
 
+	var->transp.offset = 0;
+	var->transp.length = 0;
 	switch (var->bits_per_pixel) {
 	case 8:		/* PSEUDOCOLOUR, 256 */
-		var->transp.offset = 0;
-		var->transp.length = 0;
 		var->red.offset = 0;
 		var->red.length = 8;
 		var->green.offset = 0;
@@ -661,8 +655,6 @@ neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 		break;
 
 	case 16:		/* DIRECTCOLOUR, 64k */
-		var->transp.offset = 0;
-		var->transp.length = 0;
 		var->red.offset = 11;
 		var->red.length = 5;
 		var->green.offset = 5;
@@ -672,8 +664,6 @@ neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 		break;
 
 	case 24:		/* TRUECOLOUR, 16m */
-		var->transp.offset = 0;
-		var->transp.length = 0;
 		var->red.offset = 16;
 		var->red.length = 8;
 		var->green.offset = 8;
@@ -704,8 +694,6 @@ neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 	if (vramlen > 4 * 1024 * 1024)
 		vramlen = 4 * 1024 * 1024;
 
-	if (var->yres_virtual < var->yres)
-		var->yres_virtual = var->yres;
 	if (var->xres_virtual < var->xres)
 		var->xres_virtual = var->xres;
 
@@ -722,8 +710,6 @@ neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 	   if it was possible. We should return -EINVAL, but I disagree */
 	if (var->yres_virtual < var->yres)
 		var->yres = var->yres_virtual;
-	if (var->xres_virtual < var->xres)
-		var->xres = var->xres_virtual;
 	if (var->xoffset + var->xres > var->xres_virtual)
 		var->xoffset = var->xres_virtual - var->xres;
 	if (var->yoffset + var->yres > var->yres_virtual)
@@ -1186,8 +1172,11 @@ static int neofb_set_par(struct fb_info *info)
 	return 0;
 }
 
-static void neofb_update_start(struct fb_info *info,
-			       struct fb_var_screeninfo *var)
+/*
+ *    Pan or Wrap the Display
+ */
+static int neofb_pan_display(struct fb_var_screeninfo *var,
+			     struct fb_info *info)
 {
 	struct neofb_par *par = info->par;
 	struct vgastate *state = &par->state;
@@ -1216,35 +1205,7 @@ static void neofb_update_start(struct fb_info *info,
 	vga_wgfx(state->vgabase, 0x0E, (((Base >> 16) & 0x0f) | (oldExtCRTDispAddr & 0xf0)));
 
 	neoLock(state);
-}
-
-/*
- *    Pan or Wrap the Display
- */
-static int neofb_pan_display(struct fb_var_screeninfo *var,
-			     struct fb_info *info)
-{
-	u_int y_bottom;
-
-	y_bottom = var->yoffset;
-
-	if (!(var->vmode & FB_VMODE_YWRAP))
-		y_bottom += var->yres;
 
-	if (var->xoffset > (var->xres_virtual - var->xres))
-		return -EINVAL;
-	if (y_bottom > info->var.yres_virtual)
-		return -EINVAL;
-
-	neofb_update_start(info, var);
-
-	info->var.xoffset = var->xoffset;
-	info->var.yoffset = var->yoffset;
-
-	if (var->vmode & FB_VMODE_YWRAP)
-		info->var.vmode |= FB_VMODE_YWRAP;
-	else
-		info->var.vmode &= ~FB_VMODE_YWRAP;
 	return 0;
 }
 
@@ -1992,7 +1953,6 @@ static struct fb_info *__devinit neo_alloc_fb_info(struct pci_dev *dev, const st
 
 	info->fix.accel = id->driver_data;
 
-	mutex_init(&par->open_lock);
 	par->pci_burst = !nopciburst;
 	par->lcd_stretch = !nostretch;
 	par->libretto = libretto;