new file mode 100644
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/mmc-slot.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MMC/SD/SDIO slot of a multi-slot controller
+
+maintainers:
+ - Ulf Hansson <ulf.hansson@linaro.org>
+
+allOf:
+ - $ref: mmc-controller.yaml
+
+properties:
+ compatible:
+ const: mmc-slot
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ mmc-controller {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ slot@0 {
+ compatible = "mmc-slot";
+ reg = <0>;
+ bus-width = <4>;
+ };
+ };
+
+...
Document the mmc-slot, which is a subnode of a multi-slot MMC controlle, each slot is represented as a full MMC controller, the top node handling all the shared resources and slot mux. Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> --- .../devicetree/bindings/mmc/mmc-slot.yaml | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+)