linux-kernel - [PATCH 1/8] dt-bindings: phy: axiado,ax3000-emmc-phy: add Axiado eMMC PHY document

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Message-Id: <20251222-axiado-ax3000-add-emmc-host-driver-support-v1-1-5457d0ebcdb4@axiado.com>
Date: Mon, 22 Dec 2025 16:45:00 +0800
From: Tzu-Hao Wei <twei@...ado.com>
To: SriNavmani A <srinavmani@...ado.com>, 
 Prasad Bolisetty <pbolisetty@...ado.com>, Vinod Koul <vkoul@...nel.org>, 
 Neil Armstrong <neil.armstrong@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Harshit Shah <hshah@...ado.com>, 
 Ulf Hansson <ulf.hansson@...aro.org>, 
 Adrian Hunter <adrian.hunter@...el.com>, 
 Michal Simek <michal.simek@....com>
Cc: linux-phy@...ts.infradead.org, devicetree@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 linux-mmc@...r.kernel.org, Tzu-Hao Wei <twei@...ado.com>
Subject: [PATCH 1/8] dt-bindings: phy: axiado,ax3000-emmc-phy: add Axiado
 eMMC PHY document

From: SriNavmani A <srinavmani@...ado.com>

Add device tree bindings for the Axiado AX3000 eMMC PHY. The bindings
define the required properties for configuring the external Arasan
eMMC PHY, including register base addresses and clock references
needed for HS200 mode operation.

Signed-off-by: SriNavmani A <srinavmani@...ado.com>
Signed-off-by: Tzu-Hao Wei <twei@...ado.com>
---
 .../bindings/phy/axiado,ax3000-emmc-phy.yaml       | 46 ++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/axiado,ax3000-emmc-phy.yaml b/Documentation/devicetree/bindings/phy/axiado,ax3000-emmc-phy.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..f88941ce60cbd99a73e8c504e0bf36c626bbf674
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/axiado,ax3000-emmc-phy.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/axiado,ax3000-emmc-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Axiado AX3000 Arasan eMMC PHY
+
+maintainers:
+  - SriNavmani A <srinavmani@...ado.com>
+  - Tzu-Hao Wei <twei@...ado.com>
+  - Prasad Bolisetty <pbolisetty@...ado.com>
+
+description: |+
+  Bindings for eMMC PHY on Axiado AX3000 SoC.
+
+  - compatible:         Should be one of the following:
+                        "axiado,ax3000-emmc-phy"
+  - reg:
+      maxItems: 1
+
+properties:
+  compatible:
+    enum:
+      - axiado,ax3000-emmc-phy
+
+  "#phy-cells":
+    const: 0
+
+  reg:
+    maxItems: 1
+
+required:
+  - "#phy-cells"
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    emmc_phy: emmc-phy@...01C00 {
+        compatible = "axiado,ax3000-emmc-phy";
+        reg = <0x80801C00 0x1000>;
+        #phy-cells = <0>;
+    };

-- 
2.48.1