xref: /linux/Documentation/devicetree/bindings/display/msm/dp-controller.yaml (revision 375c4d1583948cf2439833e4a85d5a0aee853895) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/display/msm/dp-controller.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: MSM Display Port Controller
8
9maintainers:
10  - Kuogee Hsieh <quic_khsieh@quicinc.com>
11
12description: |
13  Device tree bindings for DisplayPort host controller for MSM targets
14  that are compatible with VESA DisplayPort interface specification.
15
16properties:
17  compatible:
18    oneOf:
19      - enum:
20          - qcom,sc7180-dp
21          - qcom,sc7280-dp
22          - qcom,sc7280-edp
23          - qcom,sc8180x-dp
24          - qcom,sc8180x-edp
25          - qcom,sc8280xp-dp
26          - qcom,sc8280xp-edp
27          - qcom,sdm845-dp
28          - qcom,sm8350-dp
29          - qcom,sm8650-dp
30      - items:
31          - enum:
32              - qcom,sm6350-dp
33              - qcom,sm8150-dp
34              - qcom,sm8250-dp
35              - qcom,sm8450-dp
36              - qcom,sm8550-dp
37          - const: qcom,sm8350-dp
38
39  reg:
40    minItems: 4
41    items:
42      - description: ahb register block
43      - description: aux register block
44      - description: link register block
45      - description: p0 register block
46      - description: p1 register block
47
48  interrupts:
49    maxItems: 1
50
51  clocks:
52    items:
53      - description: AHB clock to enable register access
54      - description: Display Port AUX clock
55      - description: Display Port Link clock
56      - description: Link interface clock between DP and PHY
57      - description: Display Port Pixel clock
58
59  clock-names:
60    items:
61      - const: core_iface
62      - const: core_aux
63      - const: ctrl_link
64      - const: ctrl_link_iface
65      - const: stream_pixel
66
67  assigned-clocks:
68    items:
69      - description: link clock source
70      - description: pixel clock source
71
72  assigned-clock-parents:
73    items:
74      - description: phy 0 parent
75      - description: phy 1 parent
76
77  phys:
78    maxItems: 1
79
80  phy-names:
81    items:
82      - const: dp
83
84  operating-points-v2: true
85
86  opp-table:
87    type: object
88
89  power-domains:
90    maxItems: 1
91
92  aux-bus:
93    $ref: /schemas/display/dp-aux-bus.yaml#
94
95  data-lanes:
96    $ref: /schemas/types.yaml#/definitions/uint32-array
97    deprecated: true
98    minItems: 1
99    maxItems: 4
100    items:
101      maximum: 3
102
103  "#sound-dai-cells":
104    const: 0
105
106  vdda-0p9-supply:
107    deprecated: true
108  vdda-1p2-supply:
109    deprecated: true
110
111  ports:
112    $ref: /schemas/graph.yaml#/properties/ports
113    properties:
114      port@0:
115        $ref: /schemas/graph.yaml#/properties/port
116        description: Input endpoint of the controller
117
118      port@1:
119        $ref: /schemas/graph.yaml#/$defs/port-base
120        unevaluatedProperties: false
121        description: Output endpoint of the controller
122        properties:
123          endpoint:
124            $ref: /schemas/media/video-interfaces.yaml#
125            unevaluatedProperties: false
126            properties:
127              data-lanes:
128                minItems: 1
129                maxItems: 4
130                items:
131                  enum: [ 0, 1, 2, 3 ]
132
133              link-frequencies:
134                minItems: 1
135                maxItems: 4
136                items:
137                  enum: [ 1620000000, 2700000000, 5400000000, 8100000000 ]
138
139    required:
140      - port@0
141      - port@1
142
143required:
144  - compatible
145  - reg
146  - interrupts
147  - clocks
148  - clock-names
149  - phys
150  - phy-names
151  - power-domains
152  - ports
153
154allOf:
155  # AUX BUS does not exist on DP controllers
156  # Audio output also is present only on DP output
157  # p1 regions is present on DP, but not on eDP
158  - if:
159      properties:
160        compatible:
161          contains:
162            enum:
163              - qcom,sc7280-edp
164              - qcom,sc8180x-edp
165              - qcom,sc8280xp-edp
166    then:
167      properties:
168        "#sound-dai-cells": false
169    else:
170      properties:
171        aux-bus: false
172        reg:
173          minItems: 5
174      required:
175        - "#sound-dai-cells"
176
177additionalProperties: false
178
179examples:
180  - |
181    #include <dt-bindings/interrupt-controller/arm-gic.h>
182    #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
183    #include <dt-bindings/power/qcom-rpmpd.h>
184
185    displayport-controller@ae90000 {
186        compatible = "qcom,sc7180-dp";
187        reg = <0xae90000 0x200>,
188              <0xae90200 0x200>,
189              <0xae90400 0xc00>,
190              <0xae91000 0x400>,
191              <0xae91400 0x400>;
192        interrupt-parent = <&mdss>;
193        interrupts = <12>;
194        clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
195                 <&dispcc DISP_CC_MDSS_DP_AUX_CLK>,
196                 <&dispcc DISP_CC_MDSS_DP_LINK_CLK>,
197                 <&dispcc DISP_CC_MDSS_DP_LINK_INTF_CLK>,
198                 <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK>;
199        clock-names = "core_iface", "core_aux",
200                      "ctrl_link",
201                      "ctrl_link_iface", "stream_pixel";
202
203        assigned-clocks = <&dispcc DISP_CC_MDSS_DP_LINK_CLK_SRC>,
204                          <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK_SRC>;
205
206        assigned-clock-parents = <&dp_phy 0>, <&dp_phy 1>;
207
208        phys = <&dp_phy>;
209        phy-names = "dp";
210
211        #sound-dai-cells = <0>;
212
213        power-domains = <&rpmhpd SC7180_CX>;
214
215        ports {
216            #address-cells = <1>;
217            #size-cells = <0>;
218
219            port@0 {
220                reg = <0>;
221                endpoint {
222                    remote-endpoint = <&dpu_intf0_out>;
223                };
224            };
225
226            port@1 {
227                reg = <1>;
228                endpoint {
229                    remote-endpoint = <&typec>;
230                    data-lanes = <0 1>;
231                    link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
232                };
233            };
234        };
235    };
236...
237