drm/i915: Move icl+ nv12 plane register mangling into skl_universal_plane.c

Try to keep all the low level skl+ universal plane register
details inside skl_universal_plane.c instead of having them
sprinkled all over the place.

v2: Rebase due to intel_display changes

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250212164330.16891-10-ville.syrjala@linux.intel.com

Author: vsyrjala

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

@@ -123,7 +123,6 @@
 #include "intel_wm.h"
 #include "skl_scaler.h"
 #include "skl_universal_plane.h"
-#include "skl_universal_plane_regs.h"
 #include "skl_watermark.h"
 #include "vlv_dpio_phy_regs.h"
 #include "vlv_dsi.h"
@@ -4430,33 +4429,16 @@ static void link_nv12_planes(struct intel_crtc_state *crtc_state,
 	crtc_state->rel_data_rate[y_plane->id] = crtc_state->rel_data_rate_y[uv_plane->id];
 
 	/* Copy parameters to Y plane */
-	y_plane_state->ctl = uv_plane_state->ctl | PLANE_CTL_YUV420_Y_PLANE;
-	y_plane_state->color_ctl = uv_plane_state->color_ctl;
-	y_plane_state->view = uv_plane_state->view;
-	y_plane_state->decrypt = uv_plane_state->decrypt;
-
 	intel_plane_copy_hw_state(y_plane_state, uv_plane_state);
 	y_plane_state->uapi.src = uv_plane_state->uapi.src;
 	y_plane_state->uapi.dst = uv_plane_state->uapi.dst;
 
-	if (icl_is_hdr_plane(display, uv_plane->id)) {
-		switch (y_plane->id) {
-		case PLANE_7:
-			uv_plane_state->cus_ctl |= PLANE_CUS_Y_PLANE_7_ICL;
-			break;
-		case PLANE_6:
-			uv_plane_state->cus_ctl |= PLANE_CUS_Y_PLANE_6_ICL;
-			break;
-		case PLANE_5:
-			uv_plane_state->cus_ctl |= PLANE_CUS_Y_PLANE_5_RKL;
-			break;
-		case PLANE_4:
-			uv_plane_state->cus_ctl |= PLANE_CUS_Y_PLANE_4_RKL;
-			break;
-		default:
-			MISSING_CASE(y_plane->id);
-		}
-	}
+	y_plane_state->ctl = uv_plane_state->ctl;
+	y_plane_state->color_ctl = uv_plane_state->color_ctl;
+	y_plane_state->view = uv_plane_state->view;
+	y_plane_state->decrypt = uv_plane_state->decrypt;
+
+	icl_link_nv12_planes(uv_plane_state, y_plane_state);
 }
 
 static void unlink_nv12_plane(struct intel_crtc_state *crtc_state,

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

@@ -2327,6 +2327,38 @@ static int skl_plane_check(struct intel_crtc_state *crtc_state,
 	return 0;
 }
 
+void icl_link_nv12_planes(struct intel_plane_state *uv_plane_state,
+			  struct intel_plane_state *y_plane_state)
+{
+	struct intel_display *display = to_intel_display(uv_plane_state);
+	struct intel_plane *uv_plane = to_intel_plane(uv_plane_state->uapi.plane);
+	struct intel_plane *y_plane = to_intel_plane(y_plane_state->uapi.plane);
+
+	drm_WARN_ON(display->drm, icl_is_nv12_y_plane(display, uv_plane->id));
+	drm_WARN_ON(display->drm, !icl_is_nv12_y_plane(display, y_plane->id));
+
+	y_plane_state->ctl |= PLANE_CTL_YUV420_Y_PLANE;
+
+	if (icl_is_hdr_plane(display, uv_plane->id)) {
+		switch (y_plane->id) {
+		case PLANE_7:
+			uv_plane_state->cus_ctl |= PLANE_CUS_Y_PLANE_7_ICL;
+			break;
+		case PLANE_6:
+			uv_plane_state->cus_ctl |= PLANE_CUS_Y_PLANE_6_ICL;
+			break;
+		case PLANE_5:
+			uv_plane_state->cus_ctl |= PLANE_CUS_Y_PLANE_5_RKL;
+			break;
+		case PLANE_4:
+			uv_plane_state->cus_ctl |= PLANE_CUS_Y_PLANE_4_RKL;
+			break;
+		default:
+			MISSING_CASE(y_plane->id);
+		}
+	}
+}
+
 static enum intel_fbc_id skl_fbc_id_for_pipe(enum pipe pipe)
 {
 	return pipe - PIPE_A + INTEL_FBC_A;

drivers/gpu/drm/i915/display/skl_universal_plane.h

@@ -32,6 +32,9 @@ int skl_format_to_fourcc(int format, bool rgb_order, bool alpha);
 int skl_calc_main_surface_offset(const struct intel_plane_state *plane_state,
 				 int *x, int *y, u32 *offset);
 
+void icl_link_nv12_planes(struct intel_plane_state *uv_plane_state,
+			  struct intel_plane_state *y_plane_state);
+
 bool icl_is_nv12_y_plane(struct intel_display *display,
 			 enum plane_id plane_id);
 u8 icl_hdr_plane_mask(void);