1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a840cb1bd36a..893903962e54 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2922,6 +2922,16 @@ void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
         intel_crtc->lut_b[regno] = blue >> 8;
 }
 
+void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
+                             u16 *blue, int regno)
+{
+        struct intel_crtc *intel_crtc = to_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 void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
                                  u16 *blue, uint32_t size)
 {