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@@ -4959,3 +4959,21 @@ void drm_mode_config_cleanup(struct drm_device *dev)
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drm_modeset_lock_fini(&dev->mode_config.connection_mutex);
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}
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EXPORT_SYMBOL(drm_mode_config_cleanup);
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+
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+struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
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+ unsigned int supported_rotations)
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+{
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+ static const struct drm_prop_enum_list props[] = {
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+ { DRM_ROTATE_0, "rotate-0" },
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+ { DRM_ROTATE_90, "rotate-90" },
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+ { DRM_ROTATE_180, "rotate-180" },
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+ { DRM_ROTATE_270, "rotate-270" },
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+ { DRM_REFLECT_X, "reflect-x" },
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+ { DRM_REFLECT_Y, "reflect-y" },
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+ };
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+
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+ return drm_property_create_bitmask(dev, 0, "rotation",
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+ props, ARRAY_SIZE(props),
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+ supported_rotations);
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+}
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+EXPORT_SYMBOL(drm_mode_create_rotation_property);
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