drm/i915/crt: switch to intel_de_* register accessors in display code

Avoid direct uncore use in display code.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/39c198439be580052d1f78a44c96df7ba8ffd56d.1670433372.git.jani.nikula@intel.com

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

@@ -682,7 +682,6 @@ intel_crt_load_detect(struct intel_crt *crt, u32 pipe)
 {
 	struct drm_device *dev = crt->base.base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
-	struct intel_uncore *uncore = &dev_priv->uncore;
 	u32 save_bclrpat;
 	u32 save_vtotal;
 	u32 vtotal, vactive;
@@ -694,9 +693,9 @@ intel_crt_load_detect(struct intel_crt *crt, u32 pipe)
 
 	drm_dbg_kms(&dev_priv->drm, "starting load-detect on CRT\n");
 
-	save_bclrpat = intel_uncore_read(uncore, BCLRPAT(pipe));
-	save_vtotal = intel_uncore_read(uncore, VTOTAL(pipe));
-	vblank = intel_uncore_read(uncore, VBLANK(pipe));
+	save_bclrpat = intel_de_read(dev_priv, BCLRPAT(pipe));
+	save_vtotal = intel_de_read(dev_priv, VTOTAL(pipe));
+	vblank = intel_de_read(dev_priv, VBLANK(pipe));
 
 	vtotal = ((save_vtotal >> 16) & 0xfff) + 1;
 	vactive = (save_vtotal & 0x7ff) + 1;
@@ -705,23 +704,23 @@ intel_crt_load_detect(struct intel_crt *crt, u32 pipe)
 	vblank_end = ((vblank >> 16) & 0xfff) + 1;
 
 	/* Set the border color to purple. */
-	intel_uncore_write(uncore, BCLRPAT(pipe), 0x500050);
+	intel_de_write(dev_priv, BCLRPAT(pipe), 0x500050);
 
 	if (DISPLAY_VER(dev_priv) != 2) {
-		u32 pipeconf = intel_uncore_read(uncore, PIPECONF(pipe));
-		intel_uncore_write(uncore,
-				   PIPECONF(pipe),
-				   pipeconf | PIPECONF_FORCE_BORDER);
-		intel_uncore_posting_read(uncore, PIPECONF(pipe));
+		u32 pipeconf = intel_de_read(dev_priv, PIPECONF(pipe));
+
+		intel_de_write(dev_priv, PIPECONF(pipe),
+			       pipeconf | PIPECONF_FORCE_BORDER);
+		intel_de_posting_read(dev_priv, PIPECONF(pipe));
 		/* Wait for next Vblank to substitue
 		 * border color for Color info */
 		intel_crtc_wait_for_next_vblank(intel_crtc_for_pipe(dev_priv, pipe));
-		st00 = intel_uncore_read8(uncore, _VGA_MSR_WRITE);
+		st00 = intel_de_read8(dev_priv, _VGA_MSR_WRITE);
 		status = ((st00 & (1 << 4)) != 0) ?
 			connector_status_connected :
 			connector_status_disconnected;
 
-		intel_uncore_write(uncore, PIPECONF(pipe), pipeconf);
+		intel_de_write(dev_priv, PIPECONF(pipe), pipeconf);
 	} else {
 		bool restore_vblank = false;
 		int count, detect;
@@ -735,10 +734,8 @@ intel_crt_load_detect(struct intel_crt *crt, u32 pipe)
 			u32 vsync_start = (vsync & 0xffff) + 1;
 
 			vblank_start = vsync_start;
-			intel_uncore_write(uncore,
-					   VBLANK(pipe),
-					   (vblank_start - 1) |
-					   ((vblank_end - 1) << 16));
+			intel_de_write(dev_priv, VBLANK(pipe),
+				       (vblank_start - 1) | ((vblank_end - 1) << 16));
 			restore_vblank = true;
 		}
 		/* sample in the vertical border, selecting the larger one */
@@ -750,10 +747,9 @@ intel_crt_load_detect(struct intel_crt *crt, u32 pipe)
 		/*
 		 * Wait for the border to be displayed
 		 */
-		while (intel_uncore_read(uncore, PIPEDSL(pipe)) >= vactive)
+		while (intel_de_read(dev_priv, PIPEDSL(pipe)) >= vactive)
 			;
-		while ((dsl = intel_uncore_read(uncore, PIPEDSL(pipe))) <=
-		       vsample)
+		while ((dsl = intel_de_read(dev_priv, PIPEDSL(pipe))) <= vsample)
 			;
 		/*
 		 * Watch ST00 for an entire scanline
@@ -763,14 +759,14 @@ intel_crt_load_detect(struct intel_crt *crt, u32 pipe)
 		do {
 			count++;
 			/* Read the ST00 VGA status register */
-			st00 = intel_uncore_read8(uncore, _VGA_MSR_WRITE);
+			st00 = intel_de_read8(dev_priv, _VGA_MSR_WRITE);
 			if (st00 & (1 << 4))
 				detect++;
-		} while ((intel_uncore_read(uncore, PIPEDSL(pipe)) == dsl));
+		} while ((intel_de_read(dev_priv, PIPEDSL(pipe)) == dsl));
 
 		/* restore vblank if necessary */
 		if (restore_vblank)
-			intel_uncore_write(uncore, VBLANK(pipe), vblank);
+			intel_de_write(dev_priv, VBLANK(pipe), vblank);
 		/*
 		 * If more than 3/4 of the scanline detected a monitor,
 		 * then it is assumed to be present. This works even on i830,
@@ -783,7 +779,7 @@ intel_crt_load_detect(struct intel_crt *crt, u32 pipe)
 	}
 
 	/* Restore previous settings */
-	intel_uncore_write(uncore, BCLRPAT(pipe), save_bclrpat);
+	intel_de_write(dev_priv, BCLRPAT(pipe), save_bclrpat);
 
 	return status;
 }