xref: /linux/Documentation/devicetree/bindings/display/panel/novatek,nt35950.yaml (revision 001821b0e79716c4e17c71d8e053a23599a7a508) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/panel/novatek,nt35950.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Novatek NT35950-based display panels
8
9maintainers:
10  - AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
11
12description: |
13  The nt35950 IC from Novatek is a Driver IC used to drive MIPI-DSI panels,
14  with Static RAM for content retention in command mode and also supports
15  video mode with VESA Frame Buffer Compression or Display Stream Compression
16  on single, or dual dsi port(s).
17  This DDIC is also capable of upscaling an input image to the panel's native
18  resolution, for example it can upscale a 1920x1080 input to 3840x2160 with
19  either bilinear interpolation or pixel duplication.
20
21allOf:
22  - $ref: panel-common-dual.yaml#
23
24properties:
25  compatible:
26    items:
27      - enum:
28          - sharp,ls055d1sx04
29      - const: novatek,nt35950
30    description: This indicates the panel manufacturer of the panel
31      that is in turn using the NT35950 panel driver. The compatible
32      string determines how the NT35950 panel driver shall be configured
33      to work with the indicated panel. The novatek,nt35950 compatible shall
34      always be provided as a fallback.
35
36  reg:
37    maxItems: 1
38
39  reset-gpios:
40    maxItems: 1
41    description: phandle of gpio for reset line - This should be 8mA, gpio
42      can be configured using mux, pinctrl, pinctrl-names (active high)
43
44  avdd-supply:
45    description: positive boost supply regulator
46  avee-supply:
47    description: negative boost supply regulator
48  dvdd-supply:
49    description: regulator that supplies the digital voltage
50  vddio-supply:
51    description: regulator that supplies the I/O voltage
52
53  backlight: true
54  ports: true
55
56required:
57  - compatible
58  - reg
59  - reset-gpios
60  - avdd-supply
61  - avee-supply
62  - dvdd-supply
63  - vddio-supply
64  - ports
65
66additionalProperties: false
67
68examples:
69  - |
70    #include <dt-bindings/gpio/gpio.h>
71
72    dsi0 {
73        #address-cells = <1>;
74        #size-cells = <0>;
75
76        panel@0 {
77            compatible = "sharp,ls055d1sx04", "novatek,nt35950";
78            reg = <0>;
79
80            backlight = <&pmi8998_wled>;
81            reset-gpios = <&tlmm 94 GPIO_ACTIVE_HIGH>;
82
83            avdd-supply = <&lab>;
84            avee-supply = <&ibb>;
85            dvdd-supply = <&disp_dvdd_vreg>;
86            vddio-supply = <&vreg_l14a_1p85>;
87
88            ports {
89                #address-cells = <1>;
90                #size-cells = <0>;
91
92                port@0 {
93                    reg = <0>;
94                    panel_in0: endpoint {
95                        remote-endpoint = <&dsi0_out>;
96                    };
97                };
98
99                port@1 {
100                    reg = <1>;
101                    panel_in1: endpoint {
102                        remote-endpoint = <&dsi1_out>;
103                    };
104                };
105            };
106        };
107    };
108
109...
110