xref: /linux/Documentation/devicetree/bindings/media/nxp,imx-mipi-csi2.yaml (revision 906fd46a65383cd639e5eec72a047efc33045d86) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/media/nxp,imx-mipi-csi2.yaml#
5$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    oneOf:
26      - enum:
27          - fsl,imx7-mipi-csi2
28          - fsl,imx8mm-mipi-csi2
29      - items:
30          - enum:
31              - fsl,imx8mp-mipi-csi2
32          - const: fsl,imx8mm-mipi-csi2
33
34  reg:
35    maxItems: 1
36
37  interrupts:
38    maxItems: 1
39
40  clocks:
41    minItems: 3
42    items:
43      - description: The peripheral clock (a.k.a. APB clock)
44      - description: The external clock (optionally used as the pixel clock)
45      - description: The MIPI D-PHY clock
46      - description: The AXI clock
47
48  clock-names:
49    minItems: 3
50    items:
51      - const: pclk
52      - const: wrap
53      - const: phy
54      - const: axi
55
56  power-domains:
57    maxItems: 1
58
59  phy-supply:
60    description: The MIPI D-PHY digital power supply
61
62  resets:
63    items:
64      - description: MIPI D-PHY slave reset
65
66  clock-frequency:
67    description: The desired external clock ("wrap") frequency, in Hz
68    default: 166000000
69
70  ports:
71    $ref: /schemas/graph.yaml#/properties/ports
72
73    properties:
74      port@0:
75        $ref: /schemas/graph.yaml#/$defs/port-base
76        unevaluatedProperties: false
77        description:
78          Input port node, single endpoint describing the CSI-2 transmitter.
79
80        properties:
81          endpoint:
82            $ref: video-interfaces.yaml#
83            unevaluatedProperties: false
84
85            properties:
86              data-lanes:
87                description:
88                  Note that 'fsl,imx7-mipi-csi2' only supports up to 2 data lines.
89                minItems: 1
90                items:
91                  - const: 1
92                  - const: 2
93                  - const: 3
94                  - const: 4
95
96            required:
97              - data-lanes
98
99      port@1:
100        $ref: /schemas/graph.yaml#/properties/port
101        description:
102          Output port node
103
104required:
105  - compatible
106  - reg
107  - interrupts
108  - clocks
109  - clock-names
110  - power-domains
111  - ports
112
113additionalProperties: false
114
115allOf:
116  - if:
117      properties:
118        compatible:
119          contains:
120            const: fsl,imx7-mipi-csi2
121    then:
122      required:
123        - phy-supply
124        - resets
125    else:
126      properties:
127        clocks:
128          minItems: 4
129        clock-names:
130          minItems: 4
131        phy-supply: false
132        resets: false
133
134examples:
135  - |
136    #include <dt-bindings/clock/imx7d-clock.h>
137    #include <dt-bindings/interrupt-controller/arm-gic.h>
138    #include <dt-bindings/interrupt-controller/irq.h>
139    #include <dt-bindings/reset/imx7-reset.h>
140
141    mipi-csi@30750000 {
142        compatible = "fsl,imx7-mipi-csi2";
143        reg = <0x30750000 0x10000>;
144        interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
145
146        clocks = <&clks IMX7D_IPG_ROOT_CLK>,
147                 <&clks IMX7D_MIPI_CSI_ROOT_CLK>,
148                 <&clks IMX7D_MIPI_DPHY_ROOT_CLK>;
149        clock-names = "pclk", "wrap", "phy";
150        clock-frequency = <166000000>;
151
152        power-domains = <&pgc_mipi_phy>;
153        phy-supply = <&reg_1p0d>;
154        resets = <&src IMX7_RESET_MIPI_PHY_MRST>;
155
156        ports {
157            #address-cells = <1>;
158            #size-cells = <0>;
159
160            port@0 {
161                reg = <0>;
162
163                mipi_from_sensor: endpoint {
164                    remote-endpoint = <&ov2680_to_mipi>;
165                    data-lanes = <1>;
166                };
167            };
168
169            port@1 {
170                reg = <1>;
171
172                mipi_vc0_to_csi_mux: endpoint {
173                    remote-endpoint = <&csi_mux_from_mipi_vc0>;
174                };
175            };
176        };
177    };
178
179  - |
180    #include <dt-bindings/clock/imx8mm-clock.h>
181    #include <dt-bindings/interrupt-controller/arm-gic.h>
182    #include <dt-bindings/interrupt-controller/irq.h>
183
184    mipi-csi@32e30000 {
185        compatible = "fsl,imx8mm-mipi-csi2";
186        reg = <0x32e30000 0x1000>;
187        interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
188        clock-frequency = <333000000>;
189        clocks = <&clk IMX8MM_CLK_DISP_APB_ROOT>,
190                 <&clk IMX8MM_CLK_CSI1_ROOT>,
191                 <&clk IMX8MM_CLK_CSI1_PHY_REF>,
192                 <&clk IMX8MM_CLK_DISP_AXI_ROOT>;
193        clock-names = "pclk", "wrap", "phy", "axi";
194        power-domains = <&mipi_pd>;
195
196        ports {
197            #address-cells = <1>;
198            #size-cells = <0>;
199
200            port@0 {
201                reg = <0>;
202
203                imx8mm_mipi_csi_in: endpoint {
204                    remote-endpoint = <&imx477_out>;
205                    data-lanes = <1 2 3 4>;
206                };
207            };
208
209            port@1 {
210                reg = <1>;
211
212                imx8mm_mipi_csi_out: endpoint {
213                    remote-endpoint = <&csi_in>;
214                };
215            };
216        };
217    };
218
219...
220