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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/arm/allwinner,sun4i-a10-csi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Allwinner A10 CMOS Sensor Interface (CSI) Device Tree Bindings
maintainers:
- Chen-Yu Tsai <wens@csie.org>
- Maxime Ripard <maxime.ripard@bootlin.com>
description: |-
The Allwinner A10 and later has a CMOS Sensor Interface to retrieve
frames from a parallel or BT656 sensor.
properties:
compatible:
const: allwinner,sun7i-a20-csi0
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
items:
- description: The CSI interface clock
- description: The CSI module clock
- description: The CSI ISP clock
- description: The CSI DRAM clock
clock-names:
items:
- const: bus
- const: mod
- const: isp
- const: ram
resets:
maxItems: 1
# See ./video-interfaces.txt for details
port:
type: object
additionalProperties: false
properties:
endpoint:
type: object
properties:
bus-width:
enum: [8, 16]
data-active: true
hsync-active: true
pclk-sample: true
remote-endpoint: true
vsync-active: true
required:
- bus-width
- data-active
- hsync-active
- pclk-sample
- remote-endpoint
- vsync-active
required:
- endpoint
required:
- compatible
- reg
- interrupts
- clocks
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/sun7i-a20-ccu.h>
#include <dt-bindings/reset/sun4i-a10-ccu.h>
csi0: csi@1c09000 {
compatible = "allwinner,sun7i-a20-csi0";
reg = <0x01c09000 0x1000>;
interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ccu CLK_AHB_CSI0>, <&ccu CLK_CSI0>,
<&ccu CLK_CSI_SCLK>, <&ccu CLK_DRAM_CSI0>;
clock-names = "bus", "mod", "isp", "ram";
resets = <&ccu RST_CSI0>;
port {
csi_from_ov5640: endpoint {
remote-endpoint = <&ov5640_to_csi>;
bus-width = <8>;
hsync-active = <1>; /* Active high */
vsync-active = <0>; /* Active low */
data-active = <1>; /* Active high */
pclk-sample = <1>; /* Rising */
};
};
};
...
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