tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/panel/samsung,ld9040.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Samsung LD9040 AMOLED LCD parallel RGB panel with SPI control bus
8
9maintainers:
10 - Andrzej Hajda <a.hajda@samsung.com>
11
12allOf:
13 - $ref: panel-common.yaml#
14 - $ref: /schemas/spi/spi-peripheral-props.yaml#
15
16properties:
17 compatible:
18 const: samsung,ld9040
19
20 display-timings: true
21 port: true
22 reg: true
23 reset-gpios: true
24
25 vdd3-supply:
26 description: core voltage supply
27
28 vci-supply:
29 description: voltage supply for analog circuits
30
31 power-on-delay:
32 $ref: /schemas/types.yaml#/definitions/uint32
33 description: delay after turning regulators on [ms]
34
35 reset-delay:
36 $ref: /schemas/types.yaml#/definitions/uint32
37 description: delay after reset sequence [ms]
38
39 panel-width-mm:
40 description: physical panel width [mm]
41
42 panel-height-mm:
43 description: physical panel height [mm]
44
45required:
46 - compatible
47 - reg
48 - vdd3-supply
49 - vci-supply
50 - reset-gpios
51 - display-timings
52
53unevaluatedProperties: false
54
55examples:
56 - |
57 spi {
58 #address-cells = <1>;
59 #size-cells = <0>;
60
61 lcd@0 {
62 compatible = "samsung,ld9040";
63
64 reg = <0>;
65 vdd3-supply = <&ldo7_reg>;
66 vci-supply = <&ldo17_reg>;
67 reset-gpios = <&gpy4 5 0>;
68 spi-max-frequency = <1200000>;
69 spi-cpol;
70 spi-cpha;
71 power-on-delay = <10>;
72 reset-delay = <10>;
73 panel-width-mm = <90>;
74 panel-height-mm = <154>;
75
76 display-timings {
77 timing {
78 clock-frequency = <23492370>;
79 hactive = <480>;
80 vactive = <800>;
81 hback-porch = <16>;
82 hfront-porch = <16>;
83 vback-porch = <2>;
84 vfront-porch = <28>;
85 hsync-len = <2>;
86 vsync-len = <1>;
87 hsync-active = <0>;
88 vsync-active = <0>;
89 de-active = <0>;
90 pixelclk-active = <0>;
91 };
92 };
93
94 port {
95 lcd_ep: endpoint {
96 remote-endpoint = <&fimd_dpi_ep>;
97 };
98 };
99 };
100 };
101
102...