linux-kernel - [PATCH v1 2/4] dt-bindings: phy: Add starfive,jh7110-dphy-rx

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Message-ID: <20230210061713.6449-3-changhuang.liang@starfivetech.com>
Date:   Thu, 9 Feb 2023 22:17:11 -0800
From:   Changhuang Liang <changhuang.liang@...rfivetech.com>
To:     Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Emil Renner Berthing <kernel@...il.dk>,
        Conor Dooley <conor@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Philipp Zabel <p.zabel@...gutronix.de>
CC:     Jack Zhu <jack.zhu@...rfivetech.com>,
        Changhuang Liang <changhuang.liang@...rfivetech.com>,
        <linux-phy@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-riscv@...ts.infradead.org>
Subject: [PATCH v1 2/4] dt-bindings: phy: Add starfive,jh7110-dphy-rx

Starfive SoC like the jh7110 use a MIPI D-PHY RX controller based on
a M31 IP. Add a binding for it.

Signed-off-by: Changhuang Liang <changhuang.liang@...rfivetech.com>
---
 .../bindings/phy/starfive,jh7110-dphy-rx.yaml | 78 +++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/starfive,jh7110-dphy-rx.yaml

diff --git a/Documentation/devicetree/bindings/phy/starfive,jh7110-dphy-rx.yaml b/Documentation/devicetree/bindings/phy/starfive,jh7110-dphy-rx.yaml
new file mode 100644
index 000000000000..1c1e5c7cbee2
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/starfive,jh7110-dphy-rx.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/starfive,jh7110-dphy-rx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Starfive SoC MIPI D-PHY Rx Controller
+
+maintainers:
+  - Jack Zhu <jack.zhu@...rfivetech.com>
+  - Changhuang Liang <changhuang.liang@...rfivetech.com>
+
+description: |
+  The Starfive SOC has a MIPI CSI D-PHY based on M31 IP use to transfer
+  the CSI cameras data.
+
+properties:
+  compatible:
+    items:
+      - const: "starfive,jh7110-dphy-rx"
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    minItems: 3
+    maxItems: 3
+
+  clock-names:
+    items:
+      - const: cfg
+      - const: ref
+      - const: tx
+
+  resets:
+    minItems: 2
+    maxItems: 2
+
+  starfive,aon-syscon:
+    $ref: '/schemas/types.yaml#/definitions/phandle-array'
+    items:
+      items:
+        - description: phandle of AON SYSCON
+        - description: register offset
+    description: The register of dphy rx driver can be configured
+      by AON SYSCON in this property.
+
+  "#phy-cells":
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - resets
+  - starfive,aon-syscon
+  - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/starfive,jh7110-crg.h>
+    #include <dt-bindings/reset/starfive,jh7110-crg.h>
+
+    dphy@...20000 {
+      compatible = "starfive,jh7110-dphy-rx";
+      reg = <0x19820000 0x10000>;
+      clocks = <&ispcrg JH7110_ISPCLK_M31DPHY_CFGCLK_IN>,
+               <&ispcrg JH7110_ISPCLK_M31DPHY_REFCLK_IN>,
+               <&ispcrg JH7110_ISPCLK_M31DPHY_TXCLKESC_LAN0>;
+      clock-names = "cfg", "ref", "tx";
+      resets = <&ispcrg JH7110_ISPRST_M31DPHY_HW>,
+               <&ispcrg JH7110_ISPRST_M31DPHY_B09_ALWAYS_ON>;
+      starfive,aon-syscon = <&aon_syscon 0x00>;
+      #phy-cells = <0>;
+    };
-- 
2.25.1