The define DRM_FB_HELPER_DEFAULT_OPS provides the drm_fb_helper default
implementations for functions in struct fb_ops. A drm driver can use it
like:

    static struct fb_ops drm_fbdev_cma_ops = {
        .owner          = THIS_MODULE,
        DRM_FB_HELPER_DEFAULT_OPS,
        /* driver specific implementations */
    };

Suggested-by: Daniel Vetter <daniel at ffwll.ch>
Signed-off-by: Stefan Christ <contact at stefanchrist.eu>
---
 include/drm/drm_fb_helper.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index db8d478..b76f5c7 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -214,6 +214,19 @@ struct drm_fb_helper {
        bool delayed_hotplug;
 };

+/**
+ * @DRM_FB_HELPER_DEFAULT_OPS:
+ *
+ * Helper define to register default implementations of drm_fb_helper
+ * functions. To be used in struct fb_ops of drm drivers.
+ */
+#define DRM_FB_HELPER_DEFAULT_OPS \
+       .fb_check_var   = drm_fb_helper_check_var, \
+       .fb_set_par     = drm_fb_helper_set_par, \
+       .fb_setcmap     = drm_fb_helper_setcmap, \
+       .fb_blank       = drm_fb_helper_blank, \
+       .fb_pan_display = drm_fb_helper_pan_display
+
 #ifdef CONFIG_DRM_FBDEV_EMULATION
 int drm_fb_helper_modinit(void);
 void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper 
*helper,
-- 
2.7.3

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