drm/vmwgfx: Don't use SVGA_REG_ENABLE in modesetting code.

We should not use SVGA_REG_ENABLE anywhere but in the fifo setup code,
since it controls whether the device is active.
Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/vmwgfx/vmwgfx_fb.c

@@ -153,7 +153,6 @@ static int vmw_fb_set_par(struct fb_info *info)
 	struct vmw_private *vmw_priv = par->vmw_priv;
 
 	if (vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) {
-		vmw_write(vmw_priv, SVGA_REG_ENABLE, 0);
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, 0);
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, true);
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, 0);
@@ -175,13 +174,10 @@ static int vmw_fb_set_par(struct fb_info *info)
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, info->var.yres);
 		vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
 		vmw_write(vmw_priv, SVGA_REG_NUM_GUEST_DISPLAYS, 1);
-		vmw_write(vmw_priv, SVGA_REG_ENABLE, 1);
 	} else {
-		vmw_write(vmw_priv, SVGA_REG_ENABLE, 0);
 		vmw_kms_write_svga(vmw_priv, info->var.xres, info->var.yres,
 				   info->fix.line_length,
 				   par->bpp, par->depth);
-		vmw_write(vmw_priv, SVGA_REG_ENABLE, 1);
 
 	}
 

drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c

@@ -107,16 +107,12 @@ static int vmw_ldu_commit_list(struct vmw_private *dev_priv)
 			return 0;
 		fb = entry->base.crtc.fb;
 
-		vmw_write(dev_priv, SVGA_REG_ENABLE, 0);
 		vmw_kms_write_svga(dev_priv, w, h, fb->pitch,
 				   fb->bits_per_pixel, fb->depth);
-		vmw_write(dev_priv, SVGA_REG_ENABLE, 1);
 
 		return 0;
 	}
 
-	vmw_write(dev_priv, SVGA_REG_ENABLE, 0);
-
 	for (i = 0; i < lds->last_num_active; i++) {
 		vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, i);
 		vmw_write(dev_priv, SVGA_REG_DISPLAY_IS_PRIMARY, !i);
@@ -152,7 +148,6 @@ static int vmw_ldu_commit_list(struct vmw_private *dev_priv)
 
 	/* Make sure we always show something. */
 	vmw_write(dev_priv, SVGA_REG_NUM_GUEST_DISPLAYS, i ? i : 1);
-	vmw_write(dev_priv, SVGA_REG_ENABLE, 1);
 
 	BUG_ON(i != lds->num_active);