dt-bindings: mmc: Convert sdhci-fujitsu to JSON schema

Convert the Fujitsu SDHCI controller IP binding to DT schema format,
and add resets property as optional to support reset control.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221111081033.3813-2-hayashi.kunihiko@socionext.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

1 files changed, 55 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/mmc/fujitsu,sdhci-fujitsu.yaml b/Documentation/devicetree/bindings/mmc/fujitsu,sdhci-fujitsu.yaml
new file mode 100644
index 000000000000..85bfaadb0479
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/fujitsu,sdhci-fujitsu.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/fujitsu,sdhci-fujitsu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Fujitsu SDHCI controller (F_SDH30)
+
+maintainers:
+  - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
+
+allOf:
+  - $ref: mmc-controller.yaml#
+
+properties:
+  compatible:
+    const: fujitsu,mb86s70-sdhci-3.0
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: iface
+      - const: core
+
+  resets:
+    maxItems: 1
+
+  fujitsu,cmd-dat-delay-select:
+    type: boolean
+    description: |
+      Indicating that this host requires the CMD_DAT_DELAY control to be enabled
+
+unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+examples:
+  - |
+    sdhci1: mmc@36600000 {
+        compatible = "fujitsu,mb86s70-sdhci-3.0";
+        reg = <0x36600000 0x1000>;
+        bus-width = <4>;
+        vqmmc-supply = <&vccq_sdhci1>;
+        clocks = <&clock 2 2 0>, <&clock 2 3 0>;
+        clock-names = "iface", "core";
+    };