drm/fb: add support for tiled monitor configurations. (v2)

This adds fbdev/con support for tiled monitors, so that we
only set a mode on the correct half of the monitor, or
span the two halves if needed.

v2: remove unneeded ERROR, fix | vs ||

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index f4ad254e3488..b597068103aa 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -34,9 +34,14 @@ struct drm_fb_helper;
 
 #include <linux/kgdb.h>
 
+struct drm_fb_offset {
+        int x, y;
+};
+
 struct drm_fb_helper_crtc {
         struct drm_mode_set mode_set;
         struct drm_display_mode *desired_mode;
+        int x, y;
 };
 
 struct drm_fb_helper_surface_size {
@@ -72,6 +77,7 @@ struct drm_fb_helper_funcs {
         bool (*initial_config)(struct drm_fb_helper *fb_helper,
                                struct drm_fb_helper_crtc **crtcs,
                                struct drm_display_mode **modes,
+                               struct drm_fb_offset *offsets,
                                bool *enabled, int width, int height);
 };