drm/fb: add setcmap and fix 8-bit support.

This adds support for the setcmap api and fixes the 8bpp
support at least on radeon hardware. It adds a new load_lut
hook which can be called once the color map is setup.

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

2 files changed, 6 insertions, 1 deletions

diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index ef47dfd8e5e9..b29e20168b5f 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -61,6 +61,9 @@ struct drm_crtc_helper_funcs {
         /* Move the crtc on the current fb to the given position *optional* */
         int (*mode_set_base)(struct drm_crtc *crtc, int x, int y,
                              struct drm_framebuffer *old_fb);
+
+        /* reload the current crtc LUT */
+        void (*load_lut)(struct drm_crtc *crtc);
 };
 
 struct drm_encoder_helper_funcs {
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 4aa5740ce59f..f1ed08559fc7 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -98,9 +98,11 @@ int drm_fb_helper_setcolreg(unsigned regno,
 void drm_fb_helper_restore(void);
 void drm_fb_helper_fill_var(struct fb_info *info, struct drm_framebuffer *fb,
                             uint32_t fb_width, uint32_t fb_height);
-void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch);
+void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
+                            uint32_t depth);
 
 int drm_fb_helper_add_connector(struct drm_connector *connector);
 int drm_fb_helper_parse_command_line(struct drm_device *dev);
+int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
 
 #endif