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Subject[PATCH 2/4] media: dt-bindings: media: Document RZ/G2L CRU
Date
Document the CRU block found on Renesas RZ/G2L SoC's.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
RFC v2 -> v1
* Dropped endpoint stuff from port1 as suggested by Rob
* Updated description for endpoint

RFC v1 -> RFC v2
* Dropped CSI
---
.../bindings/media/renesas,rzg2l-cru.yaml | 142 ++++++++++++++++++
1 file changed, 142 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml

diff --git a/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml b/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
new file mode 100644
index 000000000000..d7389693dae9
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/renesas,rzg2l-cru.yaml
@@ -0,0 +1,142 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (C) 2022 Renesas Electronics Corp.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/renesas,rzg2l-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas RZ/G2L (and alike SoC's) Camera Data Receiving Unit (CRU) Image processing
+
+maintainers:
+ - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
+
+description:
+ The CRU image processing module is a data conversion module equipped with pixel
+ color space conversion, LUT, pixel format conversion, etc. An MIPI CSI-2 input and
+ parallel (including ITU-R BT.656) input are provided as the image sensor interface.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - renesas,r9a07g044-cru # RZ/G2{L,LC}
+ - renesas,r9a07g054-cru # RZ/V2L
+ - const: renesas,rzg2l-cru
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 3
+
+ interrupt-names:
+ items:
+ - const: image_conv
+ - const: image_conv_err
+ - const: axi_mst_err
+
+ clocks:
+ items:
+ - description: CRU Main clock
+ - description: CPU Register access clock
+ - description: CRU image transfer clock
+
+ clock-names:
+ items:
+ - const: vclk
+ - const: pclk
+ - const: aclk
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ items:
+ - description: CRU_PRESETN reset terminal
+ - description: CRU_ARESETN reset terminal
+
+ reset-names:
+ items:
+ - const: presetn
+ - const: aresetn
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description:
+ Input port node, single endpoint describing a parallel input source.
+
+ properties:
+ endpoint:
+ $ref: video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ hsync-active: true
+ vsync-active: true
+ bus-width: true
+ data-shift: true
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ Input port node, describing the Image Processing module connected to the
+ CSI-2 receiver.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-names
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ # Device node example with CSI-2
+ - |
+ #include <dt-bindings/clock/r9a07g044-cpg.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ cru: video@10830000 {
+ compatible = "renesas,r9a07g044-cru", "renesas,rzg2l-cru";
+ reg = <0x10830000 0x400>;
+ interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "image_conv", "image_conv_err", "axi_mst_err";
+ clocks = <&cpg CPG_MOD R9A07G044_CRU_VCLK>,
+ <&cpg CPG_MOD R9A07G044_CRU_PCLK>,
+ <&cpg CPG_MOD R9A07G044_CRU_ACLK>;
+ clock-names = "vclk", "pclk", "aclk";
+ power-domains = <&cpg>;
+ resets = <&cpg R9A07G044_CRU_PRESETN>,
+ <&cpg R9A07G044_CRU_ARESETN>;
+ reset-names = "presetn", "aresetn";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ reg = <1>;
+
+ crucsi2: endpoint@0 {
+ reg = <0>;
+ remote-endpoint= <&csi2cru>;
+ };
+ };
+ };
+ };
--
2.25.1
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