ste,mcde.yaml

  1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/display/ste,mcde.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: ST-Ericsson Multi Channel Display Engine MCDE
  8
  9maintainers:
 10  - Linus Walleij <linusw@kernel.org>
 11
 12properties:
 13  compatible:
 14    const: ste,mcde
 15
 16  reg:
 17    maxItems: 1
 18
 19  interrupts:
 20    maxItems: 1
 21
 22  clocks:
 23    description: an array of the MCDE clocks
 24    items:
 25      - description: MCDECLK (main MCDE clock)
 26      - description: LCDCLK (LCD clock)
 27      - description: PLLDSI (HDMI clock)
 28
 29  clock-names:
 30    items:
 31      - const: mcde
 32      - const: lcd
 33      - const: hdmi
 34
 35  resets:
 36    maxItems: 1
 37
 38  epod-supply:
 39    description: a phandle to the EPOD regulator
 40
 41  vana-supply:
 42    description: a phandle to the analog voltage regulator
 43
 44  port:
 45    $ref: /schemas/graph.yaml#/properties/port
 46    description:
 47      A DPI port node
 48
 49  "#address-cells":
 50    const: 1
 51
 52  "#size-cells":
 53    const: 1
 54
 55  ranges: true
 56
 57patternProperties:
 58  "^dsi@[0-9a-f]+$":
 59    description: subnodes for the three DSI host adapters
 60    type: object
 61    $ref: dsi-controller.yaml#
 62
 63    properties:
 64      compatible:
 65        const: ste,mcde-dsi
 66
 67      reg:
 68        maxItems: 1
 69
 70      vana-supply:
 71        description: a phandle to the analog voltage regulator
 72
 73      clocks:
 74        description: phandles to the high speed and low power (energy save) clocks
 75          the high speed clock is not present on the third (dsi2) block, so it
 76          should only have the "lp" clock
 77        minItems: 1
 78        maxItems: 2
 79
 80      clock-names:
 81        oneOf:
 82          - items:
 83              - const: hs
 84              - const: lp
 85          - items:
 86              - const: lp
 87
 88    required:
 89      - compatible
 90      - reg
 91      - vana-supply
 92      - clocks
 93      - clock-names
 94
 95    unevaluatedProperties: false
 96
 97required:
 98  - compatible
 99  - reg
100  - interrupts
101  - clocks
102  - clock-names
103  - epod-supply
104  - vana-supply
105
106additionalProperties: false
107
108examples:
109  - |
110    #include <dt-bindings/interrupt-controller/irq.h>
111    #include <dt-bindings/interrupt-controller/arm-gic.h>
112    #include <dt-bindings/mfd/dbx500-prcmu.h>
113    #include <dt-bindings/gpio/gpio.h>
114
115    mcde@a0350000 {
116      compatible = "ste,mcde";
117      reg = <0xa0350000 0x1000>;
118      interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
119      epod-supply = <&db8500_b2r2_mcde_reg>;
120      vana-supply = <&ab8500_ldo_ana_reg>;
121      clocks = <&prcmu_clk PRCMU_MCDECLK>,
122               <&prcmu_clk PRCMU_LCDCLK>,
123               <&prcmu_clk PRCMU_PLLDSI>;
124      clock-names = "mcde", "lcd", "hdmi";
125      #address-cells = <1>;
126      #size-cells = <1>;
127      ranges;
128
129      dsi0: dsi@a0351000 {
130        compatible = "ste,mcde-dsi";
131        reg = <0xa0351000 0x1000>;
132        vana-supply = <&ab8500_ldo_ana_reg>;
133        clocks = <&prcmu_clk PRCMU_DSI0CLK>, <&prcmu_clk PRCMU_DSI0ESCCLK>;
134        clock-names = "hs", "lp";
135        #address-cells = <1>;
136        #size-cells = <0>;
137
138        panel@0 {
139          compatible = "samsung,s6d16d0";
140          reg = <0>;
141          vdd1-supply = <&ab8500_ldo_aux1_reg>;
142          reset-gpios = <&gpio2 1 GPIO_ACTIVE_LOW>;
143        };
144      };
145
146      dsi1: dsi@a0352000 {
147        compatible = "ste,mcde-dsi";
148        reg = <0xa0352000 0x1000>;
149        vana-supply = <&ab8500_ldo_ana_reg>;
150        clocks = <&prcmu_clk PRCMU_DSI1CLK>, <&prcmu_clk PRCMU_DSI1ESCCLK>;
151        clock-names = "hs", "lp";
152        #address-cells = <1>;
153        #size-cells = <0>;
154      };
155
156      dsi2: dsi@a0353000 {
157        compatible = "ste,mcde-dsi";
158        reg = <0xa0353000 0x1000>;
159        vana-supply = <&ab8500_ldo_ana_reg>;
160        /* This DSI port only has the Low Power / Energy Save clock */
161        clocks = <&prcmu_clk PRCMU_DSI2ESCCLK>;
162        clock-names = "lp";
163        #address-cells = <1>;
164        #size-cells = <0>;
165      };
166    };
167
168...