[PATCH v2 10/11] dt-bindings: display: convert Arm Mali-DP to DT schema
Andre Przywara
andre.przywara at arm.com
Fri May 6 07:05:32 PDT 2022
The Arm Mali Display Processor (DP) 5xx/6xx is a series of IP that scans
out a framebuffer and hands the pixels over to a digital signal encoder.
It supports multiple layers, scaling and rotation.
Convert the existing DT binding to DT schema.
Signed-off-by: Andre Przywara <andre.przywara at arm.com>
---
.../bindings/display/arm,malidp.txt | 68 ----------
.../bindings/display/arm,malidp.yaml | 116 ++++++++++++++++++
2 files changed, 116 insertions(+), 68 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/display/arm,malidp.txt
create mode 100644 Documentation/devicetree/bindings/display/arm,malidp.yaml
diff --git a/Documentation/devicetree/bindings/display/arm,malidp.txt b/Documentation/devicetree/bindings/display/arm,malidp.txt
deleted file mode 100644
index 7a97a2b48c2a2..0000000000000
--- a/Documentation/devicetree/bindings/display/arm,malidp.txt
+++ /dev/null
@@ -1,68 +0,0 @@
-ARM Mali-DP
-
-The following bindings apply to a family of Display Processors sold as
-licensable IP by ARM Ltd. The bindings describe the Mali DP500, DP550 and
-DP650 processors that offer multiple composition layers, support for
-rotation and scaling output.
-
-Required properties:
- - compatible: should be one of
- "arm,mali-dp500"
- "arm,mali-dp550"
- "arm,mali-dp650"
- depending on the particular implementation present in the hardware
- - reg: Physical base address and size of the block of registers used by
- the processor.
- - interrupts: Interrupt list, as defined in ../interrupt-controller/interrupts.txt,
- interrupt client nodes.
- - interrupt-names: name of the engine inside the processor that will
- use the corresponding interrupt. Should be one of "DE" or "SE".
- - clocks: A list of phandle + clock-specifier pairs, one for each entry
- in 'clock-names'
- - clock-names: A list of clock names. It should contain:
- - "pclk": for the APB interface clock
- - "aclk": for the AXI interface clock
- - "mclk": for the main processor clock
- - "pxlclk": for the pixel clock feeding the output PLL of the processor.
- - arm,malidp-output-port-lines: Array of u8 values describing the number
- of output lines per channel (R, G and B).
-
-Required sub-nodes:
- - port: The Mali DP connection to an encoder input port. The connection
- is modelled using the OF graph bindings specified in
- Documentation/devicetree/bindings/graph.txt
-
-Optional properties:
- - memory-region: phandle to a node describing memory (see
- Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt)
- to be used for the framebuffer; if not present, the framebuffer may
- be located anywhere in memory.
- - arm,malidp-arqos-high-level: integer of u32 value describing the ARQoS
- levels of DP500's QoS signaling.
-
-
-Example:
-
-/ {
- ...
-
- dp0: malidp at 6f200000 {
- compatible = "arm,mali-dp650";
- reg = <0 0x6f200000 0 0x20000>;
- memory-region = <&display_reserved>;
- interrupts = <0 168 IRQ_TYPE_LEVEL_HIGH>,
- <0 168 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "DE", "SE";
- clocks = <&oscclk2>, <&fpgaosc0>, <&fpgaosc1>, <&fpgaosc1>;
- clock-names = "pxlclk", "mclk", "aclk", "pclk";
- arm,malidp-output-port-lines = /bits/ 8 <8 8 8>;
- arm,malidp-arqos-high-level = <0xd000d000>;
- port {
- dp0_output: endpoint {
- remote-endpoint = <&tda998x_2_input>;
- };
- };
- };
-
- ...
-};
diff --git a/Documentation/devicetree/bindings/display/arm,malidp.yaml b/Documentation/devicetree/bindings/display/arm,malidp.yaml
new file mode 100644
index 0000000000000..ea7b7100548bf
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/arm,malidp.yaml
@@ -0,0 +1,116 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/arm,malidp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm Mali Display Processor (Mali-DP) binding
+
+maintainers:
+ - Liviu Dudau <Liviu.Dudau at arm.com>
+ - Andre Przywara <andre.przywara at arm.com>
+
+description:
+ The following bindings apply to a family of Display Processors sold as
+ licensable IP by ARM Ltd. The bindings describe the Mali DP500, DP550 and
+ DP650 processors that offer multiple composition layers, support for
+ rotation and scaling output.
+
+properties:
+ compatible:
+ enum:
+ - arm,mali-dp500
+ - arm,mali-dp550
+ - arm,mali-dp650
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description:
+ The interrupt used by the Display Engine (DE). Can be shared with
+ the interrupt for the Scaling Engine (SE), but it will have to be
+ listed individually.
+ - description:
+ The interrupt used by the Scaling Engine (SE). Can be shared with
+ the interrupt for the Display Engine (DE), but it will have to be
+ listed individually.
+
+ interrupt-names:
+ items:
+ - const: DE
+ - const: SE
+
+ clock-names:
+ items:
+ - const: pxlclk
+ - const: mclk
+ - const: aclk
+ - const: pclk
+
+ clocks:
+ items:
+ - description: the pixel clock feeding the output PLL of the processor
+ - description: the main processor clock
+ - description: the AXI interface clock
+ - description: the APB interface clock
+
+ memory-region:
+ maxItems: 1
+ description:
+ Phandle to a node describing memory to be used for the framebuffer.
+ If not present, the framebuffer may be located anywhere in memory.
+
+ arm,malidp-output-port-lines:
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ description:
+ Number of output lines/bits for each colour channel.
+ items:
+ - description: number of output lines for the red channel (R)
+ - description: number of output lines for the green channel (G)
+ - description: number of output lines for the blue channel (B)
+
+ arm,malidp-arqos-high-level:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ integer describing the ARQoS levels of DP500's QoS signaling
+
+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+ unevaluatedProperties: false
+ description:
+ Output endpoint of the controller, connecting the LCD panel signals.
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-names
+ - clocks
+ - clock-names
+ - port
+ - arm,malidp-output-port-lines
+
+examples:
+ - |
+ dp0: malidp at 6f200000 {
+ compatible = "arm,mali-dp650";
+ reg = <0x6f200000 0x20000>;
+ memory-region = <&display_reserved>;
+ interrupts = <168>, <168>;
+ interrupt-names = "DE", "SE";
+ clocks = <&oscclk2>, <&fpgaosc0>, <&fpgaosc1>, <&fpgaosc1>;
+ clock-names = "pxlclk", "mclk", "aclk", "pclk";
+ arm,malidp-output-port-lines = /bits/ 8 <8 8 8>;
+ arm,malidp-arqos-high-level = <0xd000d000>;
+
+ port {
+ dp0_output: endpoint {
+ remote-endpoint = <&tda998x_2_input>;
+ };
+ };
+ };
+...
--
2.25.1
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