bindings/media/brcm%2Cbcm2835-unicam.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/media/brcm,bcm2835-unicam.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10   - Raspberry Pi Kernel Maintenance <kernel-list@raspberrypi.com>
12 description: |-
14   CSI-2 or CCP2 data from image sensors or similar devices.
17   the Pi the VideoCore firmware can also control this hardware block, and
19   the firmware checks the device tree configuration during boot. If it finds
20   device tree nodes whose name starts with 'csi' then it will stop the firmware
26     const: brcm,bcm2835-unicam
30       - description: Unicam block.
31       - description: Clock Manager Image (CMI) block.
33   reg-names:
35       - const: unicam
36       - const: cmi
41   clocks:
43       - description: Clock to drive the LP state machine of Unicam.
44       - description: Clock for the VPU (core clock).
46   clock-names:
48       - const: lp
49       - const: vpu
51   power-domains:
53       - description: Unicam power domain
55   brcm,num-data-lanes:
59       Number of CSI-2 data lanes supported by this Unicam instance. The number
60       of data lanes actively used is specified with the data-lanes endpoint
64     $ref: /schemas/graph.yaml#/$defs/port-base
69         $ref: /schemas/media/video-interfaces.yaml#
73           bus-type:
76           clock-noncontinuous: true
77           data-lanes: true
78           remote-endpoint: true
81           - bus-type
82           - data-lanes
83           - remote-endpoint
86       - endpoint
89   - compatible
90   - reg
91   - reg-names
92   - interrupts
93   - clocks
94   - clock-names
95   - power-domains
96   - brcm,num-data-lanes
97   - port
102   - |
103     #include <dt-bindings/clock/bcm2835.h>
104     #include <dt-bindings/interrupt-controller/arm-gic.h>
105     #include <dt-bindings/media/video-interfaces.h>
106     #include <dt-bindings/power/raspberrypi-power.h>
109         compatible = "brcm,bcm2835-unicam";
112         reg-names = "unicam", "cmi";
114         clocks = <&clocks BCM2835_CLOCK_CAM1>,
116         clock-names = "lp", "vpu";
117         power-domains = <&power RPI_POWER_DOMAIN_UNICAM1>;
118         brcm,num-data-lanes = <2>;
121                         remote-endpoint = <&imx219_0>;
122                         bus-type = <MEDIA_BUS_TYPE_CSI2_DPHY>;
123                         data-lanes = <1 2>;