| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-extdst.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Freescale i.MX8qxp Display Controller External Destination Interface |
| |
| description: | |
| The External Destination unit is the interface between the internal pixel |
| processing pipeline of the Pixel Engine, which is 30-bit RGB plus 8-bit Alpha, |
| and a Display Engine. |
| |
| It comprises the following built-in Gamma apply function. |
| |
| +------X-----------------------+ |
| | | ExtDst Unit | |
| | V | |
| | +-------+ | |
| | | Gamma | | |
| | +-------+ | |
| | | | |
| | V + |
| +------X-----------------------+ |
| |
| The output format is 24-bit RGB plus 1-bit Alpha. Conversion from 10 to 8 |
| bits is done by LSBit truncation. Alpha output bit is 1 for input 255, 0 |
| otherwise. |
| |
| maintainers: |
| - Liu Ying <victor.liu@nxp.com> |
| |
| properties: |
| compatible: |
| const: fsl,imx8qxp-dc-extdst |
| |
| reg: |
| maxItems: 2 |
| |
| reg-names: |
| items: |
| - const: pec |
| - const: cfg |
| |
| interrupts: |
| maxItems: 3 |
| |
| interrupt-names: |
| items: |
| - const: shdload |
| - const: framecomplete |
| - const: seqcomplete |
| |
| required: |
| - compatible |
| - reg |
| - reg-names |
| - interrupts |
| - interrupt-names |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| extdst@56180980 { |
| compatible = "fsl,imx8qxp-dc-extdst"; |
| reg = <0x56180980 0x1c>, <0x56184800 0x28>; |
| reg-names = "pec", "cfg"; |
| interrupt-parent = <&dc0_intc>; |
| interrupts = <3>, <4>, <5>; |
| interrupt-names = "shdload", "framecomplete", "seqcomplete"; |
| }; |
