[PATCH v3 1/4] dt-bindings: media: platform: visconti: Add Toshiba Visconti Video Input Interface bindings

From: Yuji Ishikawa
Date: Wed Aug 10 2022 - 10:04:42 EST


Adds the Device Tree binding documentation that allows to describe
the Video Input Interface found in Toshiba Visconti SoCs.

Signed-off-by: Yuji Ishikawa <yuji2.ishikawa@xxxxxxxxxxxxx>
Reviewed-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@xxxxxxxxxxxxx>
---
Chengelog v2:
- no change

Changelog v3:
- no change
---
.../bindings/media/toshiba,visconti-viif.yaml | 103 ++++++++++++++++++
1 file changed, 103 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/toshiba,visconti-viif.yaml

diff --git a/Documentation/devicetree/bindings/media/toshiba,visconti-viif.yaml b/Documentation/devicetree/bindings/media/toshiba,visconti-viif.yaml
new file mode 100644
index 000000000..848ea5019
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/toshiba,visconti-viif.yaml
@@ -0,0 +1,103 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/toshiba,visconti-viif.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Toshiba Visconti5 SoC Video Input Interface Device Tree Bindings
+
+maintainers:
+ - Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@xxxxxxxxxxxxx>
+
+description: |
+ Toshiba Visconti5 SoC Video Input Interface (VIIF) receives MIPI CSI2 video stream,
+ processes the stream with embedded image signal processor (L1ISP, L2ISP), then stores pictures to main memory.
+
+properties:
+ compatible:
+ const: toshiba,visconti-viif
+
+ reg:
+ items:
+ - description: registers for capture control
+ - description: registers for CSI2 receiver control
+
+ interrupts:
+ items:
+ - description: Sync Interrupt
+ - description: Status (Error) Interrupt
+ - description: CSI2 Receiver Interrupt
+ - description: L1ISP Interrupt
+
+ index:
+ enum: [0, 1]
+
+ port:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: Input port node, single endpoint describing the CSI-2 transmitter.
+
+ properties:
+ endpoint:
+ $ref: video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ data-lanes:
+ description: VIIF supports 2 or 4 data lines
+ items:
+ minItems: 1
+ maxItems: 4
+ items:
+ - const: 1
+ - const: 2
+ - const: 3
+ - const: 4
+ clock-lanes:
+ description: VIIF supports 1 clock line
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ viif0: viif@1c000000 {
+ compatible = "toshiba,visconti-viif";
+ reg = <0 0x1c000000 0 0x6000>,
+ <0 0x1c008000 0 0x400>;
+ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
+ index = <0>;
+ status = "disabled";
+
+ port {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ csi_in0: endpoint {
+ remote-endpoint = <&imx219_out0>;
+ bus-type = <4>;
+ data-lanes = <1 2>;
+ clock-lanes = <0>;
+ clock-noncontinuous;
+ link-frequencies = /bits/ 64 <456000000>;
+ };
+ };
+ };
+ };
+
--
2.17.1