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, 3 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 155719ff99d1..a840cb1bd36a 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3513,6 +3513,7 @@ static const struct drm_crtc_helper_funcs intel_helper_funcs = {
         .mode_set_base = intel_pipe_set_base,
         .prepare = intel_crtc_prepare,
         .commit = intel_crtc_commit,
+        .load_lut = intel_crtc_load_lut,
 };
 
 static const struct drm_crtc_funcs intel_crtc_funcs = {
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index e85d7e9eed7d..3ee8db1fbcd0 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -60,6 +60,7 @@ static struct fb_ops intelfb_ops = {
         .fb_imageblit = cfb_imageblit,
         .fb_pan_display = drm_fb_helper_pan_display,
         .fb_blank = drm_fb_helper_blank,
+        .fb_setcmap = drm_fb_helper_setcmap,
 };
 
 static struct drm_fb_helper_funcs intel_fb_helper_funcs = {
@@ -206,7 +207,7 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
 
 //      memset(info->screen_base, 0, size);
 
-        drm_fb_helper_fill_fix(info, fb->pitch);
+        drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
         drm_fb_helper_fill_var(info, fb, fb_width, fb_height);
 
         /* FIXME: we really shouldn't expose mmio space at all */