linux-kernel - [PATCH v2 2/3] dt-bindings: mmc: document mmc-slot

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Message-Id: <20240920-topic-amlogic-arm32-upstream-bindings-fixes-convert-meson-mx-sdio-v2-2-5aa8bdfe01af@linaro.org>
Date: Fri, 20 Sep 2024 10:38:04 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Ulf Hansson <ulf.hansson@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Kevin Hilman <khilman@...libre.com>, 
 Jerome Brunet <jbrunet@...libre.com>, 
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: linux-mmc@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-amlogic@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH v2 2/3] dt-bindings: mmc: document mmc-slot

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@...aro.org>
---
 .../devicetree/bindings/mmc/mmc-slot.yaml          | 40 ++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/mmc-slot.yaml b/Documentation/devicetree/bindings/mmc/mmc-slot.yaml
new file mode 100644
index 000000000000..c30eda4fd2a6
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/mmc-slot.yaml
@@ -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@...aro.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>;
+      };
+    };
+
+...

-- 
2.34.1