Merge branch 'drm-radeon-next' of ../drm-radeon-next into drm-core-next

[mv-sheeva.git] / drivers / gpu / drm / radeon / radeon_display.c

diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index fd70b8428f39f4736bf84bec00072c0be704f9af..6c6846cdaa3020cf95f33cb48d666917947b9404 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -138,6 +138,38 @@ void radeon_crtc_load_lut(struct drm_crtc *crtc)
                legacy_crtc_load_lut(crtc);
 }
 
+void radeon_crtc_save_lut(struct drm_crtc *crtc)
+{
+       struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+       int i;
+
+       if (!crtc->enabled)
+               return;
+
+       for (i = 0; i < 256; i++) {
+               radeon_crtc->lut_r_copy[i] = radeon_crtc->lut_r[i];
+               radeon_crtc->lut_g_copy[i] = radeon_crtc->lut_g[i];
+               radeon_crtc->lut_b_copy[i] = radeon_crtc->lut_b[i];
+       }
+}
+
+void radeon_crtc_restore_lut(struct drm_crtc *crtc)
+{
+       struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+       int i;
+
+       if (!crtc->enabled)
+               return;
+
+       for (i = 0; i < 256; i++) {
+               radeon_crtc->lut_r[i] = radeon_crtc->lut_r_copy[i];
+               radeon_crtc->lut_g[i] = radeon_crtc->lut_g_copy[i];
+               radeon_crtc->lut_b[i] = radeon_crtc->lut_b_copy[i];
+       }
+
+       radeon_crtc_load_lut(crtc);
+}
+
 /** Sets the color ramps on behalf of fbcon */
 void radeon_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
                              u16 blue, int regno)