1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/panel/samsung,lms397kf04.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Samsung LMS397KF04 display panel
8
9description: The datasheet claims this is based around a display controller
10  named DB7430 with a separate backlight controller.
11
12maintainers:
13  - Linus Walleij <linus.walleij@linaro.org>
14
15allOf:
16  - $ref: panel-common.yaml#
17
18properties:
19  compatible:
20    const: samsung,lms397kf04
21
22  reg: true
23
24  reset-gpios: true
25
26  vci-supply:
27    description: regulator that supplies the VCI analog voltage
28      usually around 3.0 V
29
30  vccio-supply:
31    description: regulator that supplies the VCCIO voltage usually
32      around 1.8 V
33
34  backlight: true
35
36  spi-max-frequency:
37    $ref: /schemas/types.yaml#/definitions/uint32
38    description: inherited as a SPI client node, the datasheet specifies
39      maximum 300 ns minimum cycle which gives around 3 MHz max frequency
40    maximum: 3000000
41
42  port: true
43
44required:
45  - compatible
46  - reg
47
48additionalProperties: false
49
50examples:
51  - |
52    #include <dt-bindings/gpio/gpio.h>
53
54    spi {
55      #address-cells = <1>;
56      #size-cells = <0>;
57      panel@0 {
58        compatible = "samsung,lms397kf04";
59        spi-max-frequency = <3000000>;
60        reg = <0>;
61        vci-supply = <&lcd_3v0_reg>;
62        vccio-supply = <&lcd_1v8_reg>;
63        reset-gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
64        backlight = <&ktd259>;
65
66        port {
67          panel_in: endpoint {
68            remote-endpoint = <&display_out>;
69          };
70        };
71      };
72    };
73
74...
75