drm/i915: Simplify expression &to_i915(dev)->drm

to_i915 is defined as

	container_of(dev, struct drm_i915_private, drm);

So for a struct drm_device *dev, to_i915(dev)->drm is just dev. Simplify
accordingly.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230721212133.271118-1-u.kleine-koenig@pengutronix.de

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

@@ -819,8 +819,7 @@ static ssize_t i915_displayport_test_active_write(struct file *file,
 	if (IS_ERR(input_buffer))
 		return PTR_ERR(input_buffer);
 
-	drm_dbg(&to_i915(dev)->drm,
-		"Copied %d bytes from user\n", (unsigned int)len);
+	drm_dbg(dev, "Copied %d bytes from user\n", (unsigned int)len);
 
 	drm_connector_list_iter_begin(dev, &conn_iter);
 	drm_for_each_connector_iter(connector, &conn_iter) {
@@ -839,8 +838,7 @@ static ssize_t i915_displayport_test_active_write(struct file *file,
 			status = kstrtoint(input_buffer, 10, &val);
 			if (status < 0)
 				break;
-			drm_dbg(&to_i915(dev)->drm,
-				"Got %d for test active\n", val);
+			drm_dbg(dev, "Got %d for test active\n", val);
 			/* To prevent erroneous activation of the compliance
 			 * testing code, only accept an actual value of 1 here
 			 */

drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c

@@ -818,7 +818,7 @@ i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj,
 	if (obj->bit_17 == NULL) {
 		obj->bit_17 = bitmap_zalloc(page_count, GFP_KERNEL);
 		if (obj->bit_17 == NULL) {
-			drm_err(&to_i915(obj->base.dev)->drm,
+			drm_err(obj->base.dev,
 				"Failed to allocate memory for bit 17 record\n");
 			return;
 		}

drivers/gpu/drm/i915/i915_vma.c

@@ -74,14 +74,14 @@ static void vma_print_allocator(struct i915_vma *vma, const char *reason)
 	char buf[512];
 
 	if (!vma->node.stack) {
-		drm_dbg(&to_i915(vma->obj->base.dev)->drm,
+		drm_dbg(vma->obj->base.dev,
 			"vma.node [%08llx + %08llx] %s: unknown owner\n",
 			vma->node.start, vma->node.size, reason);
 		return;
 	}
 
 	stack_depot_snprint(vma->node.stack, buf, sizeof(buf), 0);
-	drm_dbg(&to_i915(vma->obj->base.dev)->drm,
+	drm_dbg(vma->obj->base.dev,
 		"vma.node [%08llx + %08llx] %s: inserted at %s\n",
 		vma->node.start, vma->node.size, reason, buf);
 }
@@ -805,7 +805,7 @@ i915_vma_insert(struct i915_vma *vma, struct i915_gem_ww_ctx *ww,
 	 * attempt to find space.
 	 */
 	if (size > end - 2 * guard) {
-		drm_dbg(&to_i915(vma->obj->base.dev)->drm,
+		drm_dbg(vma->obj->base.dev,
 			"Attempting to bind an object larger than the aperture: request=%llu > %s aperture=%llu\n",
 			size, flags & PIN_MAPPABLE ? "mappable" : "total", end);
 		return -ENOSPC;