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
7 title: ST-Ericsson Multi Channel Display Engine MCDE
8
9 maintainers:
10 - Linus Walleij <linus.walleij@linaro.org>
11
12 properties:
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 $ref: /schemas/graph.yaml#/properties/port
46 description:
47 A DPI port node
48
49 "#address-cells":
50 const: 1
51
52 "#size-cells":
53 const: 1
54
55 ranges: true
56
57 patternProperties:
58 "^dsi@[0-9a-f]+$":
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
97 required:
98 - compatible
99 - reg
100 - interrupts
101 - clocks
102 - clock-names
103 - epod-supply
104 - vana-supply
105
106 additionalProperties: false
107
108 examples:
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 ...
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