drm: do not set fb_info->pixmap fields

The drm drivers set the fb_info->pixmap fields without setting
fb_info->pixmap.addr. If this is not set the fb core will overwrite
these all fb_info->pixmap fields anyway, so there is not much point
in setting them in the first place.

[airlied: dropped nvidiafb piece - not mine]
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/gma500/framebuffer.c

@@ -507,11 +507,7 @@ static int psbfb_create(struct psb_fbdev *fbdev,
 	info->fix.mmio_start = pci_resource_start(dev->pdev, 0);
 	info->fix.mmio_len = pci_resource_len(dev->pdev, 0);
 
-	info->pixmap.size = 64 * 1024;
-	info->pixmap.buf_align = 8;
-	info->pixmap.access_align = 32;
-	info->pixmap.flags = FB_PIXMAP_SYSTEM;
-	info->pixmap.scan_align = 1;
+	/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
 
 	dev_info(dev->dev, "allocated %dx%d fb\n",
 					psbfb->base.width, psbfb->base.height);

drivers/gpu/drm/i915/intel_fb.c

@@ -152,11 +152,7 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
 	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
 	drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
 
-	info->pixmap.size = 64*1024;
-	info->pixmap.buf_align = 8;
-	info->pixmap.access_align = 32;
-	info->pixmap.flags = FB_PIXMAP_SYSTEM;
-	info->pixmap.scan_align = 1;
+	/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
 
 	DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n",
 		      fb->width, fb->height,

drivers/gpu/drm/nouveau/nouveau_fbcon.c

@@ -381,11 +381,7 @@ nouveau_fbcon_create(struct nouveau_fbdev *nfbdev,
 		goto out_unref;
 	}
 
-	info->pixmap.size = 64*1024;
-	info->pixmap.buf_align = 8;
-	info->pixmap.access_align = 32;
-	info->pixmap.flags = FB_PIXMAP_SYSTEM;
-	info->pixmap.scan_align = 1;
+	/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
 
 	mutex_unlock(&dev->struct_mutex);
 

drivers/gpu/drm/radeon/radeon_fb.c

@@ -254,11 +254,7 @@ static int radeonfb_create(struct radeon_fbdev *rfbdev,
 	info->apertures->ranges[0].base = rdev->ddev->mode_config.fb_base;
 	info->apertures->ranges[0].size = rdev->mc.aper_size;
 
-	info->pixmap.size = 64*1024;
-	info->pixmap.buf_align = 8;
-	info->pixmap.access_align = 32;
-	info->pixmap.flags = FB_PIXMAP_SYSTEM;
-	info->pixmap.scan_align = 1;
+	/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
 
 	if (info->screen_base == NULL) {
 		ret = -ENOSPC;

drivers/gpu/drm/vmwgfx/vmwgfx_fb.c

@@ -515,19 +515,7 @@ int vmw_fb_init(struct vmw_private *vmw_priv)
 	info->var.xres = initial_width;
 	info->var.yres = initial_height;
 
-#if 0
-	info->pixmap.size = 64*1024;
-	info->pixmap.buf_align = 8;
-	info->pixmap.access_align = 32;
-	info->pixmap.flags = FB_PIXMAP_SYSTEM;
-	info->pixmap.scan_align = 1;
-#else
-	info->pixmap.size = 0;
-	info->pixmap.buf_align = 8;
-	info->pixmap.access_align = 32;
-	info->pixmap.flags = FB_PIXMAP_SYSTEM;
-	info->pixmap.scan_align = 1;
-#endif
+	/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
 
 	info->apertures = alloc_apertures(1);
 	if (!info->apertures) {