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>
next 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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