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| author | Eddie James <eajames@linux.ibm.com> | 2024-05-22 22:25:06 +0300 |
|---|---|---|
| committer | Rob Herring (Arm) <robh@kernel.org> | 2024-07-09 16:40:17 +0300 |
| commit | c7bcbb8e8f50a009d2efd9dd2af325a68d63ebaa (patch) | |
| tree | e988236431c8c4ec1ba3086d0318c46a7496d115 | |
| parent | c184d44a132429380d53f7b678e38b811fc9386a (diff) | |
| download | linux-c7bcbb8e8f50a009d2efd9dd2af325a68d63ebaa.tar.xz | |
dt-bindings: fsi: fsi2spi: Document SPI controller child nodes
The FSI2SPI bridge has several SPI controllers behind it, which
should be documented. Also, therefore the node needs to specify
address and size cells.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240522192524.3286237-3-eajames@linux.ibm.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
| -rw-r--r-- | Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml | 36 |
1 files changed, 32 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml b/Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml index e2ca0b000471..ad5c83f48425 100644 --- a/Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml +++ b/Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml @@ -9,11 +9,10 @@ title: IBM FSI-attached SPI controllers maintainers: - Eddie James <eajames@linux.ibm.com> -description: | +description: This binding describes an FSI CFAM engine called the FSI2SPI. Therefore this - node will always be a child of an FSI CFAM node; see fsi.txt for details on - FSI slave and CFAM nodes. This FSI2SPI engine provides access to a number of - SPI controllers. + node will always be a child of an FSI CFAM node. This FSI2SPI engine provides + access to a number of SPI controllers. properties: compatible: @@ -24,6 +23,17 @@ properties: items: - description: FSI slave address + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +patternProperties: + "^spi@[0-9a-f]+$": + type: object + $ref: /schemas/spi/ibm,spi-fsi.yaml + required: - compatible - reg @@ -35,4 +45,22 @@ examples: fsi2spi@1c00 { compatible = "ibm,fsi2spi"; reg = <0x1c00 0x400>; + #address-cells = <1>; + #size-cells = <0>; + + spi@0 { + compatible = "ibm,spi-fsi"; + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; + + eeprom@0 { + compatible = "atmel,at25"; + reg = <0>; + address-width = <24>; + pagesize = <256>; + size = <0x80000>; + spi-max-frequency = <1000000>; + }; + }; }; |