brcm,bcm2711-hdmi.yaml

  1# SPDX-License-Identifier: GPL-2.0
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/display/brcm,bcm2711-hdmi.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Broadcom BCM2711 HDMI Controller
  8
  9maintainers:
 10  - Eric Anholt <eric@anholt.net>
 11
 12properties:
 13  compatible:
 14    enum:
 15      - brcm,bcm2711-hdmi0
 16      - brcm,bcm2711-hdmi1
 17      - brcm,bcm2712-hdmi0
 18      - brcm,bcm2712-hdmi1
 19
 20  reg:
 21    items:
 22      - description: HDMI controller register range
 23      - description: DVP register range
 24      - description: HDMI PHY register range
 25      - description: Rate Manager register range
 26      - description: Packet RAM register range
 27      - description: Metadata RAM register range
 28      - description: CSC register range
 29      - description: CEC register range
 30      - description: HD register range
 31
 32  reg-names:
 33    items:
 34      - const: hdmi
 35      - const: dvp
 36      - const: phy
 37      - const: rm
 38      - const: packet
 39      - const: metadata
 40      - const: csc
 41      - const: cec
 42      - const: hd
 43
 44  clocks:
 45    items:
 46      - description: The HDMI state machine clock
 47      - description: The Pixel BVB clock
 48      - description: The HDMI Audio parent clock
 49      - description: The HDMI CEC parent clock
 50
 51  clock-names:
 52    items:
 53      - const: hdmi
 54      - const: bvb
 55      - const: audio
 56      - const: cec
 57
 58  interrupts:
 59    minItems: 5
 60    maxItems: 6
 61
 62  interrupt-names:
 63    minItems: 5
 64    maxItems: 6
 65
 66  ddc:
 67    $ref: /schemas/types.yaml#/definitions/phandle
 68    description: >
 69      Phandle of the I2C controller used for DDC EDID probing
 70
 71  hpd-gpios:
 72    maxItems: 1
 73    description: >
 74      The GPIO pin for the HDMI hotplug detect (if it doesn't appear
 75      as an interrupt/status bit in the HDMI controller itself)
 76
 77  dmas:
 78    maxItems: 1
 79    description: >
 80      Should contain one entry pointing to the DMA channel used to
 81      transfer audio data.
 82
 83  dma-names:
 84    const: audio-rx
 85
 86  resets:
 87    maxItems: 1
 88
 89  wifi-2.4ghz-coexistence:
 90    type: boolean
 91    description: >
 92      Should the pixel frequencies in the WiFi frequencies range be
 93      avoided?
 94
 95required:
 96  - compatible
 97  - reg
 98  - reg-names
 99  - clocks
100  - resets
101  - ddc
102
103additionalProperties: false
104
105allOf:
106  - if:
107      properties:
108        compatible:
109          contains:
110            enum:
111              - brcm,bcm2711-hdmi0
112              - brcm,bcm2711-hdmi1
113    then:
114      properties:
115        interrupts:
116          items:
117            - description: CEC TX interrupt
118            - description: CEC RX interrupt
119            - description: CEC stuck at low interrupt
120            - description: Wake-up interrupt
121            - description: Hotplug connected interrupt
122            - description: Hotplug removed interrupt
123        interrupt-names:
124          items:
125            - const: cec-tx
126            - const: cec-rx
127            - const: cec-low
128            - const: wakeup
129            - const: hpd-connected
130            - const: hpd-removed
131
132  - if:
133      properties:
134        compatible:
135          contains:
136            enum:
137              - brcm,bcm2712-hdmi0
138              - brcm,bcm2712-hdmi1
139    then:
140      properties:
141        interrupts:
142          items:
143            - description: CEC TX interrupt
144            - description: CEC RX interrupt
145            - description: CEC stuck at low interrupt
146            - description: Hotplug connected interrupt
147            - description: Hotplug removed interrupt
148        interrupts-names:
149          items:
150            - const: cec-tx
151            - const: cec-rx
152            - const: cec-low
153            - const: hpd-connected
154            - const: hpd-removed
155
156      required:
157        - interrupts
158        - interrupt-names
159
160examples:
161  - |
162    hdmi0: hdmi@7ef00700 {
163        compatible = "brcm,bcm2711-hdmi0";
164        reg = <0x7ef00700 0x300>,
165              <0x7ef00300 0x200>,
166              <0x7ef00f00 0x80>,
167              <0x7ef00f80 0x80>,
168              <0x7ef01b00 0x200>,
169              <0x7ef01f00 0x400>,
170              <0x7ef00200 0x80>,
171              <0x7ef04300 0x100>,
172              <0x7ef20000 0x100>;
173        reg-names = "hdmi",
174                    "dvp",
175                    "phy",
176                    "rm",
177                    "packet",
178                    "metadata",
179                    "csc",
180                    "cec",
181                    "hd";
182        clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
183        clock-names = "hdmi", "bvb", "audio", "cec";
184        interrupts = <0>, <1>, <2>, <3>, <4>, <5>;
185        interrupt-names = "cec-tx", "cec-rx", "cec-low", "wakeup",
186                          "hpd-connected", "hpd-removed";
187        resets = <&dvp 0>;
188        ddc = <&ddc0>;
189    };
190
191...