drivers/gpu/drm/i915/display/intel_dpt_common.c

   1 // SPDX-License-Identifier: MIT
   2 /*
   3  * Copyright © 2023 Intel Corporation
   4  */
   5
   6 #include "i915_reg.h"
   7 #include "intel_de.h"
   8 #include "intel_display_types.h"
   9 #include "intel_dpt_common.h"
  10
  11 void intel_dpt_configure(struct intel_crtc *crtc)
  12 {
  13         struct drm_i915_private *i915 = to_i915(crtc->base.dev);
  14
  15         if (DISPLAY_VER(i915) == 14) {
  16                 enum pipe pipe = crtc->pipe;
  17                 enum plane_id plane_id;
  18
  19                 for_each_plane_id_on_crtc(crtc, plane_id) {
  20                         if (plane_id == PLANE_CURSOR)
  21                                 continue;
  22
  23                         intel_de_rmw(i915, PLANE_CHICKEN(pipe, plane_id),
  24                                      PLANE_CHICKEN_DISABLE_DPT,
  25                                      i915->display.params.enable_dpt ? 0 :
  26                                      PLANE_CHICKEN_DISABLE_DPT);
  27                 }
  28         } else if (DISPLAY_VER(i915) == 13) {
  29                 intel_de_rmw(i915, CHICKEN_MISC_2,
  30                              CHICKEN_MISC_DISABLE_DPT,
  31                              i915->display.params.enable_dpt ? 0 :
  32                              CHICKEN_MISC_DISABLE_DPT);
  33         }
  34 }