dm: doc: Fix example

`.priv_data_size` does not exist. I believe the actual structure member
was supposed to be `.priv_auto`.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

diff --git a/doc/develop/driver-model/design.rst b/doc/develop/driver-model/design.rst
index 3009373..6335459 100644 (file)
--- a/doc/develop/driver-model/design.rst
+++ b/doc/develop/driver-model/design.rst
@@ -312,7 +312,7 @@ drivers/demo/demo-shape.c):
                .name   = "demo_shape_drv",
                .id     = UCLASS_DEMO,
                .ops    = &shape_ops,
-               .priv_data_size = sizeof(struct shape_data),
+               .priv_auto = sizeof(struct shape_data),
        };