| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| # Copyright 2019,2020 Lubomir Rintel <lkundrak@v3.sk> |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/spi/marvell,mmp2-ssp.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: PXA2xx SSP SPI Controller |
| |
| maintainers: |
| - Lubomir Rintel <lkundrak@v3.sk> |
| |
| properties: |
| compatible: |
| enum: |
| - marvell,mmp2-ssp |
| - mrvl,ce4100-ssp |
| - mvrl,pxa168-ssp |
| - mrvl,pxa25x-ssp |
| - mvrl,pxa25x-nssp |
| - mrvl,pxa27x-ssp |
| - mrvl,pxa3xx-ssp |
| - mrvl,pxa910-ssp |
| |
| interrupts: |
| maxItems: 1 |
| |
| reg: |
| maxItems: 1 |
| |
| clocks: |
| maxItems: 1 |
| |
| dmas: |
| items: |
| - description: Receive DMA |
| - description: Transmit DMA |
| |
| dma-names: |
| items: |
| - const: rx |
| - const: tx |
| |
| ready-gpios: |
| description: | |
| GPIO used to signal a SPI master that the FIFO is filled and we're |
| ready to service a transfer. Only useful in slave mode. |
| maxItems: 1 |
| |
| required: |
| - compatible |
| - reg |
| - interrupts |
| - clocks |
| |
| dependencies: |
| ready-gpios: [ spi-slave ] |
| |
| allOf: |
| - $ref: spi-controller.yaml# |
| - if: |
| properties: |
| compatible: |
| contains: |
| const: marvell,mmp2-ssp |
| then: |
| properties: |
| dmas: false |
| dma-names: false |
| |
| unevaluatedProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/clock/marvell,mmp2.h> |
| spi@d4035000 { |
| compatible = "marvell,mmp2-ssp"; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| reg = <0xd4035000 0x1000>; |
| clocks = <&soc_clocks MMP2_CLK_SSP0>; |
| interrupts = <0>; |
| }; |
| |
| ... |
