gma500: plug in more of the gamma functionality

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c
index c1c4dc174fa27bb51245360b5db7f884d425e858..973822971e8eb0a82fd11084a5937b6f5689be16 100644 (file)
--- a/drivers/gpu/drm/gma500/framebuffer.c
+++ b/drivers/gpu/drm/gma500/framebuffer.c
@@ -556,11 +556,21 @@ static struct drm_framebuffer *psb_user_framebuffer_create
 static void psbfb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
                                                        u16 blue, int regno)
 {
+       struct psb_intel_crtc *intel_crtc = to_psb_intel_crtc(crtc);
+
+       intel_crtc->lut_r[regno] = red >> 8;
+       intel_crtc->lut_g[regno] = green >> 8;
+       intel_crtc->lut_b[regno] = blue >> 8;
 }
 
 static void psbfb_gamma_get(struct drm_crtc *crtc, u16 *red,
                                        u16 *green, u16 *blue, int regno)
 {
+       struct psb_intel_crtc *intel_crtc = to_psb_intel_crtc(crtc);
+
+       *red = intel_crtc->lut_r[regno] << 8;
+       *green = intel_crtc->lut_g[regno] << 8;
+       *blue = intel_crtc->lut_b[regno] << 8;
 }
 
 static int psbfb_probe(struct drm_fb_helper *helper,