xref: /linux/drivers/gpu/drm/i915/display/intel_dpt_common.c (revision 72bea132f3680ee51e7ed2cee62892b6f5121909)
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 }
35