[PATCH] drivers/gpu/drm/i915/display: remove boilerplate code using LOCK_ALL macros

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Replaced the boilerplate code for intel_display.c with
DRM_MODESET_LOCK_ALL macros per the TODO in gpu

(I apologize if I did something wrong, this is my first contribution of
hopefully many, so excited!!!)

Signed-off-by: Marco Kurzynski <marcokurzynski@xxxxxxxxxx>
---
 drivers/gpu/drm/i915/display/intel_display.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 3bad4e00f7be..4a46d63b4d39 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -13307,22 +13307,12 @@ void intel_display_resume(struct drm_device *dev)
 	if (state)
 		state->acquire_ctx = &ctx;
 
-	drm_modeset_acquire_init(&ctx, 0);
-
-	while (1) {
-		ret = drm_modeset_lock_all_ctx(dev, &ctx);
-		if (ret != -EDEADLK)
-			break;
-
-		drm_modeset_backoff(&ctx);
-	}
-
+	DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
 	if (!ret)
 		ret = __intel_display_resume(dev, state, &ctx);
 
 	intel_enable_ipc(dev_priv);
-	drm_modeset_drop_locks(&ctx);
-	drm_modeset_acquire_fini(&ctx);
+	DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
 
 	if (ret)
 		drm_err(&dev_priv->drm,
-- 
2.25.1

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