xref: /linux/Documentation/devicetree/bindings/display/imx/fsl,imx-lcdc.yaml (revision 6e7fd890f1d6ac83805409e9c346240de2705584) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/imx/fsl,imx-lcdc.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale i.MX LCD Controller, found on i.MX1, i.MX21, i.MX25 and i.MX27
8
9maintainers:
10  - Sascha Hauer <s.hauer@pengutronix.de>
11  - Pengutronix Kernel Team <kernel@pengutronix.de>
12
13properties:
14  compatible:
15    oneOf:
16      - enum:
17          - fsl,imx1-fb
18          - fsl,imx21-fb
19      - items:
20          - enum:
21              - fsl,imx25-fb
22              - fsl,imx27-fb
23          - const: fsl,imx21-fb
24      - items:
25          - const: fsl,imx25-lcdc
26          - const: fsl,imx21-lcdc
27
28  clocks:
29    maxItems: 3
30
31  clock-names:
32    items:
33      - const: ipg
34      - const: ahb
35      - const: per
36
37  port:
38    $ref: /schemas/graph.yaml#/properties/port
39
40  display:
41    $ref: /schemas/types.yaml#/definitions/phandle
42
43  interrupts:
44    maxItems: 1
45
46  reg:
47    maxItems: 1
48
49  lcd-supply:
50    description:
51      Regulator for LCD supply voltage.
52
53  fsl,dmacr:
54    $ref: /schemas/types.yaml#/definitions/uint32
55    description:
56      Override value for DMA Control Register
57
58  fsl,lpccr:
59    $ref: /schemas/types.yaml#/definitions/uint32
60    description:
61      Contrast Control Register value.
62
63  fsl,lscr1:
64    $ref: /schemas/types.yaml#/definitions/uint32
65    description:
66      LCDC Sharp Configuration Register value.
67
68allOf:
69  - if:
70      properties:
71        compatible:
72          contains:
73            enum:
74              - fsl,imx1-lcdc
75              - fsl,imx21-lcdc
76    then:
77      properties:
78        display: false
79        fsl,dmacr: false
80        fsl,lpccr: false
81        fsl,lscr1: false
82
83      required:
84        - port
85
86    else:
87      properties:
88        port: false
89
90      required:
91        - display
92
93required:
94  - compatible
95  - clocks
96  - clock-names
97  - interrupts
98  - reg
99
100additionalProperties: false
101
102examples:
103  - |
104    lcdc@53fbc000 {
105        compatible = "fsl,imx25-lcdc", "fsl,imx21-lcdc";
106        reg = <0x53fbc000 0x4000>;
107        interrupts = <39>;
108        clocks = <&clks 103>, <&clks 66>, <&clks 49>;
109        clock-names = "ipg", "ahb", "per";
110
111        port {
112            parallel_out: endpoint {
113              remote-endpoint = <&panel_in>;
114            };
115        };
116    };
117  - |
118    imxfb: fb@10021000 {
119        compatible = "fsl,imx21-fb";
120        interrupts = <61>;
121        reg = <0x10021000 0x1000>;
122        display = <&display0>;
123        clocks = <&clks 103>, <&clks 49>, <&clks 66>;
124        clock-names = "ipg", "ahb", "per";
125    };
126
127    display0: display0 {
128        model = "Primeview-PD050VL1";
129        bits-per-pixel = <16>;
130        fsl,pcr = <0xf0c88080>; /* non-standard but required */
131
132        display-timings {
133            native-mode = <&timing_disp0>;
134            timing_disp0: timing0 {
135                hactive = <640>;
136                vactive = <480>;
137                hback-porch = <112>;
138                hfront-porch = <36>;
139                hsync-len = <32>;
140                vback-porch = <33>;
141                vfront-porch = <33>;
142                vsync-len = <2>;
143                clock-frequency = <25000000>;
144            };
145        };
146    };
147