return 0;
 }
 
-static int i9xx_gamma_precision(const struct intel_crtc_state *crtc_state)
+static int i9xx_post_csc_lut_precision(const struct intel_crtc_state *crtc_state)
 {
        if (!crtc_state->gamma_enable)
                return 0;
        }
 }
 
-static int ilk_gamma_precision(const struct intel_crtc_state *crtc_state)
+static int ilk_post_csc_lut_precision(const struct intel_crtc_state *crtc_state)
 {
        if (!crtc_state->gamma_enable)
                return 0;
        }
 }
 
-static int chv_gamma_precision(const struct intel_crtc_state *crtc_state)
+static int chv_post_csc_lut_precision(const struct intel_crtc_state *crtc_state)
 {
        if (crtc_state->cgm_mode & CGM_PIPE_MODE_GAMMA)
                return 10;
        else
-               return i9xx_gamma_precision(crtc_state);
+               return i9xx_post_csc_lut_precision(crtc_state);
 }
 
-static int glk_gamma_precision(const struct intel_crtc_state *crtc_state)
+static int glk_post_csc_lut_precision(const struct intel_crtc_state *crtc_state)
 {
        if (!crtc_state->gamma_enable)
                return 0;
        }
 }
 
-static int icl_gamma_precision(const struct intel_crtc_state *crtc_state)
+static int icl_post_csc_lut_precision(const struct intel_crtc_state *crtc_state)
 {
        if ((crtc_state->gamma_mode & POST_CSC_GAMMA_ENABLE) == 0)
                return 0;
 
        if (HAS_GMCH(i915)) {
                if (IS_CHERRYVIEW(i915))
-                       return chv_gamma_precision(crtc_state);
+                       return chv_post_csc_lut_precision(crtc_state);
                else
-                       return i9xx_gamma_precision(crtc_state);
+                       return i9xx_post_csc_lut_precision(crtc_state);
        } else {
                if (DISPLAY_VER(i915) >= 11)
-                       return icl_gamma_precision(crtc_state);
+                       return icl_post_csc_lut_precision(crtc_state);
                else if (DISPLAY_VER(i915) == 10)
-                       return glk_gamma_precision(crtc_state);
+                       return glk_post_csc_lut_precision(crtc_state);
                else if (IS_IRONLAKE(i915))
-                       return ilk_gamma_precision(crtc_state);
+                       return ilk_post_csc_lut_precision(crtc_state);
        }
 
        return 0;