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Message-Id: <20251016-visconti-viif-v13-1-ceca656b9194@toshiba.co.jp>
Date: Thu, 16 Oct 2025 11:24:38 +0900
From: Yuji Ishikawa <yuji2.ishikawa@...hiba.co.jp>
To: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.x90@...l.toshiba>,
        Yuji Ishikawa <yuji2.ishikawa@...hiba.co.jp>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>
Cc: linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v13 1/7] dt-bindings: media: platform: visconti: Add
 Toshiba Visconti MIPI CSI-2 Receiver

Adds the Device Tree binding documentation that allows to describe
the MIPI CSI-2 Receiver found in Toshiba Visconti SoCs.

Signed-off-by: Yuji Ishikawa <yuji2.ishikawa@...hiba.co.jp>
---
Changelog v12:
- Newly add bindings for CSI2RX driver

Changelog v13:
- add entries to MAINTAINERS file.
- update email address of Nobuhiro Iwamatsu in /maintainers
- add Yuji Ishikawa to /maintainers
- change /properties/compatible: toshiba,visconti5-csi2rx -> toshiba,visconti5-csi2
- change bindings file name: toshiba,visconti5-csi2rx -> toshiba,visconti5-csi2
- change node name in sample DTS: csi2rx -> csi
- remove "|-" from /description
- update /description
- add definitions of clock and reset
- update /properties/ports/properties/port@...escription for better comment
- update /properties/ports/properties/port@...ref to specify full pathname
- remove /properties/ports/properties/port@...roperties/endpoint/properties/data-lanes/description because the default text provides enough information.
- update sample dts
---
 .../bindings/media/toshiba,visconti5-csi2.yaml     | 125 +++++++++++++++++++++
 MAINTAINERS                                        |   7 ++
 2 files changed, 132 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/toshiba,visconti5-csi2.yaml b/Documentation/devicetree/bindings/media/toshiba,visconti5-csi2.yaml
new file mode 100644
index 000000000000..21fb46de5b6e
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/toshiba,visconti5-csi2.yaml
@@ -0,0 +1,125 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/toshiba,visconti5-csi2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Toshiba Visconti5 SoC MIPI CSI-2 receiver
+
+maintainers:
+  - Nobuhiro Iwamatsu <nobuhiro.iwamatsu.x90@...l.toshiba>
+  - Yuji Ishikawa <yuji2.ishikawa@...hiba.co.jp>
+
+description:
+  Toshiba Visconti5 SoC MIPI CSI-2 receiver device receives MIPI CSI-2 video
+  stream. The obtained video stream is used as input for the Visconti5 VIIF.
+
+properties:
+  compatible:
+    const: toshiba,visconti5-csi2
+
+  reg:
+    items:
+      - description: Registers for CSI2 receiver control
+
+  interrupts:
+    items:
+      - description: CSI2 Receiver Interrupt
+
+  clocks:
+    items:
+      - description: MIPI DPHY configuration clock
+      - description: Register access clock
+
+  clock-names:
+    items:
+      - const: cfg
+      - const: apb
+
+  resets:
+    maxItems: 1
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description:
+          Input port node, with an endpoint pointing to the image sensor.
+
+        properties:
+          endpoint:
+            $ref: /schemas/media/video-interfaces.yaml#
+            unevaluatedProperties: false
+
+            properties:
+              data-lanes:
+                minItems: 1
+                items:
+                  - const: 1
+                  - const: 2
+                  - const: 3
+                  - const: 4
+            required:
+              - data-lanes
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          Output port node, with an endpoint pointing to the Visconti VIIF.
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - resets
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/toshiba,tmpv770x.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        csi0: csi@...08000 {
+            compatible = "toshiba,visconti5-csi2";
+            reg = <0 0x1c008000 0 0x400>;
+            interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&pismu TMPV770X_CLK_VIIFBS0_CFG>,
+                     <&pismu TMPV770X_CLK_VIIFBS0_APB>;
+            clock-names = "cfg", "apb";
+            resets = <&pismu TMPV770X_RESET_VIIFBS0_APB>;
+
+            ports {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                port@0 {
+                    reg = <0>;
+                    csi0_in: endpoint {
+                        data-lanes = <1 2>;
+                        remote-endpoint = <&imx219_out>;
+                    };
+                };
+                port@1 {
+                    reg = <1>;
+                    csi0_out: endpoint {
+                        remote-endpoint = <&video0_in>;
+                    };
+                };
+            };
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 46126ce2f968..e4634a0aad74 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -25979,6 +25979,13 @@ F:	Documentation/devicetree/bindings/media/i2c/toshiba,tc358743.txt
 F:	drivers/media/i2c/tc358743*
 F:	include/media/i2c/tc358743.h
 
+TOSHIBA VISCONTI VIIF DRIVER
+M:	Nobuhiro Iwamatsu <nobuhiro.iwamatsu.x90@...l.toshiba>
+M:	Yuji Ishikawa <yuji2.ishikawa@...hiba.co.jp>
+L:	linux-media@...r.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/media/toshiba,visconti5-csi2.yaml
+
 TOSHIBA WMI HOTKEYS DRIVER
 M:	Azael Avalos <coproscefalo@...il.com>
 L:	platform-driver-x86@...r.kernel.org

-- 
2.34.1



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