linux-kernel - [PATCH v4 1/3] dt-bindings: phy: Add starfive,jh7110-dphy-rx

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Message-ID: <20230412084540.295411-2-changhuang.liang@starfivetech.com>
Date:   Wed, 12 Apr 2023 01:45:38 -0700
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 v4 1/3] dt-bindings: phy: Add starfive,jh7110-dphy-rx

StarFive SoCs 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 | 85 +++++++++++++++++++
 1 file changed, 85 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..5fb2f14af816
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/starfive,jh7110-dphy-rx.yaml
@@ -0,0 +1,85 @@
+# 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 uses the MIPI CSI D-PHY based on M31 IP to transfer
+  CSI camera data.
+
+properties:
+  compatible:
+    const: starfive,jh7110-dphy-rx
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: config clock
+      - description: reference clock
+      - description: escape mode transmit clock
+
+  clock-names:
+    items:
+      - const: cfg
+      - const: ref
+      - const: tx
+
+  resets:
+    items:
+      - description: DPHY_HW reset
+      - description: DPHY_B09_ALWAYS_ON reset
+
+  power-domains:
+    maxItems: 1
+
+  lane_maps:
+    $ref: /schemas/types.yaml#/definitions/uint8-array
+    description:
+      D-PHY rx controller physical lanes and logic lanes mapping table.
+    items:
+      - description: logic lane index point to physical lane clock lane 0
+      - description: logic lane index point to physical lane data lane 0
+      - description: logic lane index point to physical lane data lane 1
+      - description: logic lane index point to physical lane data lane 2
+      - description: logic lane index point to physical lane data lane 3
+      - description: logic lane index point to physical lane clock lane 1
+
+  "#phy-cells":
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - resets
+  - power-domains
+  - lane_maps
+  - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    phy@...20000 {
+      compatible = "starfive,jh7110-dphy-rx";
+      reg = <0x19820000 0x10000>;
+      clocks = <&ispcrg 3>,
+               <&ispcrg 4>,
+               <&ispcrg 5>;
+      clock-names = "cfg", "ref", "tx";
+      resets = <&ispcrg 2>,
+               <&ispcrg 3>;
+      power-domains = <&dphy_pwrc 1>;
+      lane_maps = /bits/ 8 <4 0 1 2 3 5>;
+      #phy-cells = <0>;
+    };
-- 
2.25.1