Documentation/devicetree/bindings/spi/marvell,mmp2-ssp.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 # Copyright 2019,2020 Lubomir Rintel <lkundrak@v3.sk>
   3 %YAML 1.2
   4 ---
   5 $id: http://devicetree.org/schemas/spi/marvell,mmp2-ssp.yaml#
   6 $schema: http://devicetree.org/meta-schemas/core.yaml#
   7
   8 title: PXA2xx SSP SPI Controller bindings
   9
  10 maintainers:
  11   - Lubomir Rintel <lkundrak@v3.sk>
  12
  13 allOf:
  14   - $ref: spi-controller.yaml#
  15
  16 properties:
  17   compatible:
  18     const: marvell,mmp2-ssp
  19
  20   interrupts:
  21     maxItems: 1
  22
  23   reg:
  24     maxItems: 1
  25
  26   clocks:
  27     maxItems: 1
  28
  29   ready-gpios:
  30     description: |
  31       GPIO used to signal a SPI master that the FIFO is filled and we're
  32       ready to service a transfer. Only useful in slave mode.
  33     maxItems: 1
  34
  35 required:
  36   - compatible
  37   - reg
  38   - interrupts
  39   - clocks
  40
  41 dependencies:
  42   ready-gpios: [ spi-slave ]
  43
  44 unevaluatedProperties: false
  45
  46 examples:
  47   - |
  48     #include <dt-bindings/clock/marvell,mmp2.h>
  49     spi@d4035000 {
  50         compatible = "marvell,mmp2-ssp";
  51         #address-cells = <1>;
  52         #size-cells = <0>;
  53         reg = <0xd4035000 0x1000>;
  54         clocks = <&soc_clocks MMP2_CLK_SSP0>;
  55         interrupts = <0>;
  56     };
  57
  58 ...