xref: /freebsd/sys/contrib/device-tree/Bindings/media/nxp,imx7-mipi-csi2.yaml (revision 7ef62cebc2f965b0f640263e179276928885e33d) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/media/nxp,imx7-mipi-csi2.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: NXP i.MX7 and i.MX8 MIPI CSI-2 receiver
8
9maintainers:
10  - Rui Miguel Silva <rmfrfs@gmail.com>
11  - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
12
13description: |-
14  The NXP i.MX7 and i.MX8 families contain SoCs that include a MIPI CSI-2
15  receiver IP core named CSIS. The IP core originates from Samsung, and may be
16  compatible with some of the Exynos4 and S5P SoCs. i.MX7 SoCs use CSIS version
17  3.3, and i.MX8 SoCs use CSIS version 3.6.3.
18
19  While the CSI-2 receiver is separate from the MIPI D-PHY IP core, the PHY is
20  completely wrapped by the CSIS and doesn't expose a control interface of its
21  own. This binding thus covers both IP cores.
22
23properties:
24  compatible:
25    enum:
26      - fsl,imx7-mipi-csi2
27      - fsl,imx8mm-mipi-csi2
28
29  reg:
30    maxItems: 1
31
32  interrupts:
33    maxItems: 1
34
35  clocks:
36    minItems: 3
37    items:
38      - description: The peripheral clock (a.k.a. APB clock)
39      - description: The external clock (optionally used as the pixel clock)
40      - description: The MIPI D-PHY clock
41      - description: The AXI clock
42
43  clock-names:
44    minItems: 3
45    items:
46      - const: pclk
47      - const: wrap
48      - const: phy
49      - const: axi
50
51  power-domains:
52    maxItems: 1
53
54  phy-supply:
55    description: The MIPI D-PHY digital power supply
56
57  resets:
58    items:
59      - description: MIPI D-PHY slave reset
60
61  clock-frequency:
62    description: The desired external clock ("wrap") frequency, in Hz
63    default: 166000000
64
65  ports:
66    $ref: /schemas/graph.yaml#/properties/ports
67
68    properties:
69      port@0:
70        $ref: /schemas/graph.yaml#/$defs/port-base
71        unevaluatedProperties: false
72        description:
73          Input port node, single endpoint describing the CSI-2 transmitter.
74
75        properties:
76          endpoint:
77            $ref: video-interfaces.yaml#
78            unevaluatedProperties: false
79
80            properties:
81              data-lanes:
82                description:
83                  Note that 'fsl,imx7-mipi-csi2' only supports up to 2 data lines.
84                minItems: 1
85                items:
86                  - const: 1
87                  - const: 2
88                  - const: 3
89                  - const: 4
90
91            required:
92              - data-lanes
93
94      port@1:
95        $ref: /schemas/graph.yaml#/properties/port
96        description:
97          Output port node
98
99required:
100  - compatible
101  - reg
102  - interrupts
103  - clocks
104  - clock-names
105  - power-domains
106  - ports
107
108additionalProperties: false
109
110allOf:
111  - if:
112      properties:
113        compatible:
114          contains:
115            const: fsl,imx7-mipi-csi2
116    then:
117      required:
118        - phy-supply
119        - resets
120    else:
121      properties:
122        clocks:
123          minItems: 4
124        clock-names:
125          minItems: 4
126        phy-supply: false
127        resets: false
128
129examples:
130  - |
131    #include <dt-bindings/clock/imx7d-clock.h>
132    #include <dt-bindings/interrupt-controller/arm-gic.h>
133    #include <dt-bindings/interrupt-controller/irq.h>
134    #include <dt-bindings/reset/imx7-reset.h>
135
136    mipi-csi@30750000 {
137        compatible = "fsl,imx7-mipi-csi2";
138        reg = <0x30750000 0x10000>;
139        interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
140
141        clocks = <&clks IMX7D_IPG_ROOT_CLK>,
142                 <&clks IMX7D_MIPI_CSI_ROOT_CLK>,
143                 <&clks IMX7D_MIPI_DPHY_ROOT_CLK>;
144        clock-names = "pclk", "wrap", "phy";
145        clock-frequency = <166000000>;
146
147        power-domains = <&pgc_mipi_phy>;
148        phy-supply = <&reg_1p0d>;
149        resets = <&src IMX7_RESET_MIPI_PHY_MRST>;
150
151        ports {
152            #address-cells = <1>;
153            #size-cells = <0>;
154
155            port@0 {
156                reg = <0>;
157
158                mipi_from_sensor: endpoint {
159                    remote-endpoint = <&ov2680_to_mipi>;
160                    data-lanes = <1>;
161                };
162            };
163
164            port@1 {
165                reg = <1>;
166
167                mipi_vc0_to_csi_mux: endpoint {
168                    remote-endpoint = <&csi_mux_from_mipi_vc0>;
169                };
170            };
171        };
172    };
173
174  - |
175    #include <dt-bindings/clock/imx8mm-clock.h>
176    #include <dt-bindings/interrupt-controller/arm-gic.h>
177    #include <dt-bindings/interrupt-controller/irq.h>
178
179    mipi-csi@32e30000 {
180        compatible = "fsl,imx8mm-mipi-csi2";
181        reg = <0x32e30000 0x1000>;
182        interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
183        clock-frequency = <333000000>;
184        clocks = <&clk IMX8MM_CLK_DISP_APB_ROOT>,
185                 <&clk IMX8MM_CLK_CSI1_ROOT>,
186                 <&clk IMX8MM_CLK_CSI1_PHY_REF>,
187                 <&clk IMX8MM_CLK_DISP_AXI_ROOT>;
188        clock-names = "pclk", "wrap", "phy", "axi";
189        power-domains = <&mipi_pd>;
190
191        ports {
192            #address-cells = <1>;
193            #size-cells = <0>;
194
195            port@0 {
196                reg = <0>;
197
198                imx8mm_mipi_csi_in: endpoint {
199                    remote-endpoint = <&imx477_out>;
200                    data-lanes = <1 2 3 4>;
201                };
202            };
203
204            port@1 {
205                reg = <1>;
206
207                imx8mm_mipi_csi_out: endpoint {
208                    remote-endpoint = <&csi_in>;
209                };
210            };
211        };
212    };
213
214...
215