summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml
blob: c0fabeb3862886c2c0ee362500a7d44cc8cdc2e2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/panel/samsung,ld9040.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Samsung LD9040 AMOLED LCD parallel RGB panel with SPI control bus

maintainers:
  - Andrzej Hajda <a.hajda@samsung.com>

allOf:
  - $ref: panel-common.yaml#
  - $ref: /schemas/spi/spi-peripheral-props.yaml#

properties:
  compatible:
    const: samsung,ld9040

  display-timings: true
  port: true
  reg: true
  reset-gpios: true

  vdd3-supply:
    description: core voltage supply

  vci-supply:
    description: voltage supply for analog circuits

  power-on-delay:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: delay after turning regulators on [ms]

  reset-delay:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: delay after reset sequence [ms]

  panel-width-mm:
    description: physical panel width [mm]

  panel-height-mm:
    description: physical panel height [mm]

  spi-cpha: true
  spi-cpol: true

required:
  - compatible
  - reg
  - vdd3-supply
  - vci-supply
  - reset-gpios
  - display-timings

unevaluatedProperties: false

examples:
  - |
    spi {
        #address-cells = <1>;
        #size-cells = <0>;

        lcd@0 {
            compatible = "samsung,ld9040";

            reg = <0>;
            vdd3-supply = <&ldo7_reg>;
            vci-supply = <&ldo17_reg>;
            reset-gpios = <&gpy4 5 0>;
            spi-max-frequency = <1200000>;
            spi-cpol;
            spi-cpha;
            power-on-delay = <10>;
            reset-delay = <10>;
            panel-width-mm = <90>;
            panel-height-mm = <154>;

            display-timings {
                timing {
                    clock-frequency = <23492370>;
                    hactive = <480>;
                    vactive = <800>;
                    hback-porch = <16>;
                    hfront-porch = <16>;
                    vback-porch = <2>;
                    vfront-porch = <28>;
                    hsync-len = <2>;
                    vsync-len = <1>;
                    hsync-active = <0>;
                    vsync-active = <0>;
                    de-active = <0>;
                    pixelclk-active = <0>;
                };
            };

            port {
                lcd_ep: endpoint {
                    remote-endpoint = <&fimd_dpi_ep>;
                };
            };
        };
    };

...