linux-kernel - [PATCH 2/2] dt-binding: mmc: microchip,sdhci-pic32: convert text based binding to json schema

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Message-Id: <20250507-mchp-sdhci-v1-2-ed29de05295a@gmail.com>
Date: Wed, 07 May 2025 06:29:36 +0000
From: Charan Pedumuru <charan.pedumuru@...il.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Thomas Bogendoerfer <tsbogend@...ha.franken.de>, 
 Ulf Hansson <ulf.hansson@...aro.org>
Cc: devicetree@...r.kernel.org, linux-mips@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org, 
 Charan Pedumuru <charan.pedumuru@...il.com>
Subject: [PATCH 2/2] dt-binding: mmc: microchip,sdhci-pic32: convert text
 based binding to json schema

Update text binding to YAML.
Changes during conversion:
Add appropriate include statements for interrupts and clock-names
to resolve errors identified by `dt_binding_check` and `dtbs_check`.

Signed-off-by: Charan Pedumuru <charan.pedumuru@...il.com>
---
 .../bindings/mmc/microchip,sdhci-pic32.txt         | 29 ----------
 .../bindings/mmc/microchip,sdhci-pic32.yaml        | 66 ++++++++++++++++++++++
 2 files changed, 66 insertions(+), 29 deletions(-)

diff --git a/Documentation/devicetree/bindings/mmc/microchip,sdhci-pic32.txt b/Documentation/devicetree/bindings/mmc/microchip,sdhci-pic32.txt
deleted file mode 100644
index f064528effed31f30d1d1c6e0b49c02e215d99af..0000000000000000000000000000000000000000
--- a/Documentation/devicetree/bindings/mmc/microchip,sdhci-pic32.txt
+++ /dev/null
@@ -1,29 +0,0 @@
-* Microchip PIC32 SDHCI Controller
-
-This file documents differences between the core properties in mmc.txt
-and the properties used by the sdhci-pic32 driver.
-
-Required properties:
-- compatible: Should be "microchip,pic32mzda-sdhci"
-- interrupts: Should contain interrupt
-- clock-names: Should be "base_clk", "sys_clk".
-               See: Documentation/devicetree/bindings/resource-names.txt
-- clocks: Phandle to the clock.
-          See: Documentation/devicetree/bindings/clock/clock-bindings.txt
-- pinctrl-names: A pinctrl state names "default" must be defined.
-- pinctrl-0: Phandle referencing pin configuration of the SDHCI controller.
-             See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
-
-Example:
-
-	sdhci@...ec000 {
-		compatible = "microchip,pic32mzda-sdhci";
-		reg = <0x1f8ec000 0x100>;
-		interrupts = <191 IRQ_TYPE_LEVEL_HIGH>;
-		clocks = <&rootclk REF4CLK>, <&rootclk PB5CLK>;
-		clock-names = "base_clk", "sys_clk";
-		bus-width = <4>;
-		cap-sd-highspeed;
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_sdhc1>;
-	};
diff --git a/Documentation/devicetree/bindings/mmc/microchip,sdhci-pic32.yaml b/Documentation/devicetree/bindings/mmc/microchip,sdhci-pic32.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..ca0ca7df9ee991d8402bc4c62b1235ef5db2e85f
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/microchip,sdhci-pic32.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/microchip,sdhci-pic32.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip PIC32 SDHI Controller
+
+description:
+  The Microchip PIC32 family of microcontrollers (MCUs) includes models with
+  Secure Digital Host Controller Interface (SDHCI) controllers, allowing them
+  to interface with Secure Digital (SD) cards. This interface is used for reading,
+  writing, and managing data on SD cards, enabling storage and data transfer
+  capabilities in embedded systems.
+
+allOf:
+  - $ref: mmc-controller.yaml
+
+maintainers:
+  - Ulf Hansson <ulf.hansson@...aro.org>
+
+properties:
+  compatible:
+    const: microchip,pic32mzda-sdhci
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: base_clk
+      - const: sys_clk
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - pinctrl-names
+  - pinctrl-0
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/clock/microchip,pic32-clock.h>
+    mmc@...ec000 {
+        compatible = "microchip,pic32mzda-sdhci";
+        reg = <0x1f8ec000 0x100>;
+        interrupts = <191 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&rootclk REF4CLK>, <&rootclk PB5CLK>;
+        clock-names = "base_clk", "sys_clk";
+        bus-width = <4>;
+        cap-sd-highspeed;
+        pinctrl-names = "default";
+        pinctrl-0 = <&pinctrl_sdhc1>;
+    };
+...

-- 
2.43.0