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Message-ID: <20230331121826.96973-2-jack.zhu@starfivetech.com>
Date:   Fri, 31 Mar 2023 20:18:18 +0800
From:   Jack Zhu <jack.zhu@...rfivetech.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Robert Foss <rfoss@...nel.org>,
        "Todor Tomov" <todor.too@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        "Laurent Pinchart" <laurent.pinchart@...asonboard.com>,
        Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Eugen Hristev <eugen.hristev@...labora.com>
CC:     <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <jack.zhu@...rfivetech.com>,
        <changhuang.liang@...rfivetech.com>
Subject: [PATCH v3 1/9] media: dt-bindings: Add bindings for JH7110 Camera Subsystem

Add the bindings documentation for Starfive JH7110 Camera Subsystem
which is used for handing image sensor data.

Signed-off-by: Jack Zhu <jack.zhu@...rfivetech.com>
---
 .../bindings/media/starfive,jh7110-camss.yaml | 159 ++++++++++++++++++
 MAINTAINERS                                   |   7 +
 2 files changed, 166 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml

diff --git a/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml b/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
new file mode 100644
index 000000000000..0235c70e7793
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
@@ -0,0 +1,159 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/starfive,jh7110-camss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Starfive SoC CAMSS ISP
+
+maintainers:
+  - Jack Zhu <jack.zhu@...rfivetech.com>
+  - Changhuang Liang <changhuang.liang@...rfivetech.com>
+
+description:
+  The Starfive CAMSS ISP is a Camera interface for Starfive JH7110 SoC. It
+  consists of a VIN controller (Video In Controller, a top-level control until)
+  and an ISP.
+
+properties:
+  compatible:
+    const: starfive,jh7110-camss
+
+  reg:
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: syscon
+      - const: isp
+
+  clocks:
+    maxItems: 7
+
+  clock-names:
+    items:
+      - const: apb_func
+      - const: wrapper_clk_c
+      - const: dvp_inv
+      - const: axiwr
+      - const: mipi_rx0_pxl
+      - const: ispcore_2x
+      - const: isp_axi
+
+  resets:
+    maxItems: 6
+
+  reset-names:
+    items:
+      - const: wrapper_p
+      - const: wrapper_c
+      - const: axird
+      - const: axiwr
+      - const: isp_top_n
+      - const: isp_top_axi
+
+  power-domains:
+    items:
+      - description: JH7110 ISP Power Domain Switch Controller.
+
+  interrupts:
+    maxItems: 4
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        unevaluatedProperties: false
+        description:
+          Input port for receiving DVP data.
+
+        properties:
+          endpoint:
+            $ref: video-interfaces.yaml#
+            unevaluatedProperties: false
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        unevaluatedProperties: false
+        description:
+          Input port for receiving CSI data.
+
+        properties:
+          endpoint:
+            $ref: video-interfaces.yaml#
+            unevaluatedProperties: false
+
+    required:
+      - port@1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - clocks
+  - clock-names
+  - resets
+  - reset-names
+  - power-domains
+  - interrupts
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    isp@...40000 {
+        compatible = "starfive,jh7110-camss";
+        reg = <0x19840000 0x10000>,
+              <0x19870000 0x30000>;
+        reg-names = "syscon", "isp";
+        clocks = <&ispcrg 0>,
+                 <&ispcrg 13>,
+                 <&ispcrg 2>,
+                 <&ispcrg 12>,
+                 <&ispcrg 1>,
+                 <&syscrg 51>,
+                 <&syscrg 52>;
+        clock-names = "apb_func",
+                      "wrapper_clk_c",
+                      "dvp_inv",
+                      "axiwr",
+                      "mipi_rx0_pxl",
+                      "ispcore_2x",
+                      "isp_axi";
+        resets = <&ispcrg 0>,
+                 <&ispcrg 1>,
+                 <&ispcrg 10>,
+                 <&ispcrg 11>,
+                 <&syscrg 41>,
+                 <&syscrg 42>;
+        reset-names = "wrapper_p",
+                      "wrapper_c",
+                      "axird",
+                      "axiwr",
+                      "isp_top_n",
+                      "isp_top_axi";
+        power-domains = <&pwrc 5>;
+        interrupts = <92>, <87>, <88>, <90>;
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+            port@0 {
+                reg = <0>;
+                vin_from_sc2235: endpoint {
+                    remote-endpoint = <&sc2235_to_vin>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+                vin_from_csi2rx: endpoint {
+                    remote-endpoint = <&csi2rx_to_vin>;
+                };
+            };
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index b6c811326355..f7165371c56d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19908,6 +19908,13 @@ M:	Ion Badulescu <ionut@...ula.org>
 S:	Odd Fixes
 F:	drivers/net/ethernet/adaptec/starfire*
 
+STARFIVE CAMERA SUBSYSTEM DRIVER
+M:	Jack Zhu <jack.zhu@...rfivetech.com>
+M:	Changhuang Liang <changhuang.liang@...rfivetech.com>
+L:	linux-media@...r.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/media/starfive,jh7110-camss.yaml
+
 STARFIVE DEVICETREES
 M:	Emil Renner Berthing <kernel@...il.dk>
 S:	Maintained
-- 
2.34.1

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