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From: Charan Pedumuru <charan.pedumuru@gmail.com>
To: Ulf Hansson <ulf.hansson@linaro.org>,
	Rob Herring <robh@kernel.org>,
	 Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	 Taichi Sugaya <sugaya.taichi@socionext.com>,
	 Takao Orito <orito.takao@socionext.com>
Cc: linux-mmc@vger.kernel.org, devicetree@vger.kernel.org,
	 linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	 Charan Pedumuru <charan.pedumuru@gmail.com>
Subject: [PATCH v2] dt-bindings: mmc: socionext,milbeaut-m10v-sdhci-3.0: convert to DT schema
Date: Mon, 27 Oct 2025 16:46:16 +0000	[thread overview]
Message-ID: <20251027-milbeaut-v2-1-9e1954ff7708@gmail.com> (raw)

Convert SOCIONEXT Milbeaut SDHCI controller binding to YAML format.
Add a new property "voltage-ranges" to resolve dt_check errors.

Signed-off-by: Charan Pedumuru <charan.pedumuru@gmail.com>
---
Changes in v2:
- Change the description for the property "voltage-ranges".
- Link to v1: https://lore.kernel.org/r/20251023-milbeaut-v1-1-3e4ff67110ad@gmail.com
---
 .../devicetree/bindings/mmc/sdhci-milbeaut.txt     | 30 --------
 .../mmc/socionext,milbeaut-m10v-sdhci-3.0.yaml     | 79 ++++++++++++++++++++++
 2 files changed, 79 insertions(+), 30 deletions(-)

diff --git a/Documentation/devicetree/bindings/mmc/sdhci-milbeaut.txt b/Documentation/devicetree/bindings/mmc/sdhci-milbeaut.txt
deleted file mode 100644
index 627ee89c125b..000000000000
--- a/Documentation/devicetree/bindings/mmc/sdhci-milbeaut.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-* SOCIONEXT Milbeaut SDHCI controller
-
-This file documents differences between the core properties in mmc.txt
-and the properties used by the sdhci_milbeaut driver.
-
-Required properties:
-- compatible: "socionext,milbeaut-m10v-sdhci-3.0"
-- clocks: Must contain an entry for each entry in clock-names. It is a
-  list of phandles and clock-specifier pairs.
-  See ../clocks/clock-bindings.txt for details.
-- clock-names: Should contain the following two entries:
-	"iface" - clock used for sdhci interface
-	"core"  - core clock for sdhci controller
-
-Optional properties:
-- fujitsu,cmd-dat-delay-select: boolean property indicating that this host
-  requires the CMD_DAT_DELAY control to be enabled.
-
-Example:
-	sdhci3: mmc@1b010000 {
-		compatible = "socionext,milbeaut-m10v-sdhci-3.0";
-		reg = <0x1b010000 0x10000>;
-		interrupts = <0 265 0x4>;
-		voltage-ranges = <3300 3300>;
-		bus-width = <4>;
-		clocks = <&clk 7>, <&ahb_clk>;
-		clock-names = "core", "iface";
-		cap-sdio-irq;
-		fujitsu,cmd-dat-delay-select;
-	};
diff --git a/Documentation/devicetree/bindings/mmc/socionext,milbeaut-m10v-sdhci-3.0.yaml b/Documentation/devicetree/bindings/mmc/socionext,milbeaut-m10v-sdhci-3.0.yaml
new file mode 100644
index 000000000000..2ba53626a959
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/socionext,milbeaut-m10v-sdhci-3.0.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/socionext,milbeaut-m10v-sdhci-3.0.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SOCIONEXT Milbeaut SDHCI controller
+
+maintainers:
+  - Taichi Sugaya <sugaya.taichi@socionext.com>
+  - Takao Orito <orito.takao@socionext.com>
+
+description:
+  The SOCIONEXT Milbeaut SDHCI controller is a specialized SD Host
+  Controller found in some of Socionext's Milbeaut image processing SoCs.
+  It features a dedicated "bridge controller." This bridge controller
+  implements special functions like reset control, clock management for
+  various SDR modes (SDR12, SDR25, SDR50) and physical pin property settings.
+
+allOf:
+  - $ref: sdhci-common.yaml#
+
+properties:
+  compatible:
+    const: socionext,milbeaut-m10v-sdhci-3.0
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: core
+      - const: iface
+
+  fujitsu,cmd-dat-delay-select:
+    description:
+      Its presence indicates that the controller requires a specific command
+      and data line delay selection mechanism for proper operation, particularly
+      when dealing with high-speed SD/eMMC modes.
+    type: boolean
+
+  voltage-ranges:
+    $ref: /schemas/types.yaml#/definitions/uint32-matrix
+    items:
+      items:
+        - description: minimum slot voltage (mV).
+        - description: maximum slot voltage (mV).
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    mmc@1b010000 {
+        compatible = "socionext,milbeaut-m10v-sdhci-3.0";
+        reg = <0x1b010000 0x10000>;
+        interrupts = <GIC_SPI 265 IRQ_TYPE_LEVEL_HIGH>;
+        voltage-ranges = <3300 3300>;
+        bus-width = <4>;
+        clocks = <&clk 7>, <&ahb_clk>;
+        clock-names = "core", "iface";
+        cap-sdio-irq;
+        fujitsu,cmd-dat-delay-select;
+    };
+...

---
base-commit: 7bac2c97af4078d7a627500c9bcdd5b033f97718
change-id: 20250524-milbeaut-5c0267202e2c

Best regards,
-- 
Charan Pedumuru <charan.pedumuru@gmail.com>


             reply	other threads:[~2025-10-27 16:49 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-27 16:46 Charan Pedumuru [this message]
2025-10-30 16:49 ` [PATCH v2] dt-bindings: mmc: socionext,milbeaut-m10v-sdhci-3.0: convert to DT schema Rob Herring (Arm)
2025-11-11 17:36 ` Ulf Hansson

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