linux-kernel - [PATCH v1 1/6] dt-bindings: mmc: convert mmc-spi-slot to yaml

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Message-Id: <20220605133300.376161-2-mail@conchuod.ie>
Date:   Sun,  5 Jun 2022 14:32:56 +0100
From:   mail@...chuod.ie
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andrew Lunn <andrew@...n.ch>,
        Support Opensource <support.opensource@...semi.com>,
        Lee Jones <lee.jones@...aro.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Steve Twiss <stwiss.opensource@...semi.com>
Cc:     Conor Dooley <conor.dooley@...rochip.com>,
        linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org,
        linux-riscv@...ts.infradead.org,
        Atul Khare <atulkhare@...osinc.com>
Subject: [PATCH v1 1/6] dt-bindings: mmc: convert mmc-spi-slot to yaml

From: Conor Dooley <conor.dooley@...rochip.com>

Convert the mmc-spi-slot text based binding doc to yaml,
with the side effect of cleaning up some of the riscv
dtbs_check warnings.

Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
---
 .../devicetree/bindings/mmc/mmc-spi-slot.txt  | 29 -------
 .../devicetree/bindings/mmc/mmc-spi-slot.yaml | 76 +++++++++++++++++++
 2 files changed, 76 insertions(+), 29 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt
 create mode 100644 Documentation/devicetree/bindings/mmc/mmc-spi-slot.yaml

diff --git a/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt b/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt
deleted file mode 100644
index 5e74db69f581..000000000000
--- a/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt
+++ /dev/null
@@ -1,29 +0,0 @@
-MMC/SD/SDIO slot directly connected to a SPI bus
-
-This file documents differences between the core properties described
-by mmc.txt and the properties used by the mmc_spi driver.
-
-Required properties:
-- spi-max-frequency : maximum frequency for this device (Hz).
-
-Optional properties:
-- voltage-ranges : two cells are required, first cell specifies minimum
-  slot voltage (mV), second cell specifies maximum slot voltage (mV).
-  Several ranges could be specified. If not provided, 3.2v..3.4v is assumed.
-- gpios : may specify GPIOs in this order: Card-Detect GPIO,
-  Write-Protect GPIO. Note that this does not follow the
-  binding from mmc.txt, for historical reasons.
-
-Example:
-
-	mmc-slot@0 {
-		compatible = "fsl,mpc8323rdb-mmc-slot",
-			     "mmc-spi-slot";
-		reg = <0>;
-		gpios = <&qe_pio_d 14 1
-			 &qe_pio_d 15 0>;
-		voltage-ranges = <3300 3300>;
-		spi-max-frequency = <50000000>;
-		interrupts = <42>;
-		interrupt-parent = <&PIC>;
-	};
diff --git a/Documentation/devicetree/bindings/mmc/mmc-spi-slot.yaml b/Documentation/devicetree/bindings/mmc/mmc-spi-slot.yaml
new file mode 100644
index 000000000000..a5fd723140c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/mmc-spi-slot.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/mmc-spi-slot.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MMC/SD/SDIO slot directly connected to a SPI bus
+
+maintainers:
+  - Ulf Hansson <ulf.hansson@...aro.org>
+
+allOf:
+  - $ref: "mmc-controller.yaml"
+
+description: |
+  The extra properties used by an mmc connected via spi.
+
+properties:
+  compatible:
+    const: "mmc-spi-slot"
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency: true
+
+  interrupts:
+    maxItems: 1
+
+  voltage-ranges:
+    $ref: '/schemas/types.yaml#/definitions/uint32-matrix'
+    description: |
+      Two cells are required, first cell specifies minimum slot voltage (mV),
+      second cell specifies maximum slot voltage (mV).
+    items:
+      items:
+        - description: |
+            value for minimum slot voltage
+          default: 3200
+        - description: |
+            value for maximum slot voltage
+          default: 3400
+    maxItems: 1
+
+  gpios:
+    description: |
+      For historical reasons, this does not follow the generic mmc-controller binding.
+    minItems: 1
+    items:
+      - description: Card-Detect GPIO
+      - description: Write-Protect GPIO
+
+required:
+  - compatible
+  - reg
+  - spi-max-frequency
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    spi {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      mmc@0 {
+        compatible = "mmc-spi-slot";
+        reg = <0>;
+        gpios = <&qe_pio_d 14 1>, <&qe_pio_d 15 0>;
+        voltage-ranges = <3300 3300>;
+        spi-max-frequency = <50000000>;
+        interrupts = <42>;
+        interrupt-parent = <&PIC>;
+      };
+    };
+
+...
-- 
2.36.1