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    };