diff options
| author | Lars Povlsen <lars.povlsen@microchip.com> | 2020-08-24 22:30:08 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-09-08 16:15:37 +0100 |
| commit | 5ce78f4456a9b2cb103f5bad9e62636e8d086152 (patch) | |
| tree | a4dea421bd13730b1a53558d429226417bfb3973 /Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml | |
| parent | 53a09635ce56e3041fb3cbc7ceef8f5de28259a5 (diff) | |
dt-bindings: snps, dw-apb-ssi: Add sparx5 support, plus rx-sample-delay-ns property
This has the following changes for the snps,dw-apb-ss DT bindings:
- Add "microchip,sparx5-spi" as the compatible for the Sparx5 SoC
controller
- Add the property "rx-sample-delay-ns"
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200824203010.2033-5-lars.povlsen@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml index c62cbe79f00d..c79c8a167c46 100644 --- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml +++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml @@ -36,6 +36,8 @@ properties: - mscc,ocelot-spi - mscc,jaguar2-spi - const: snps,dw-apb-ssi + - description: Microchip Sparx5 SoC SPI Controller + const: microchip,sparx5-spi - description: Amazon Alpine SPI Controller const: amazon,alpine-dw-apb-ssi - description: Renesas RZ/N1 SPI Controller @@ -93,6 +95,12 @@ properties: - const: tx - const: rx + rx-sample-delay-ns: + default: 0 + description: Default value of the rx-sample-delay-ns property. + This value will be used if the property is not explicitly defined + for a SPI slave device. See below. + patternProperties: "^.*@[0-9a-f]+$": type: object @@ -107,6 +115,13 @@ patternProperties: spi-tx-bus-width: const: 1 + rx-sample-delay-ns: + description: SPI Rx sample delay offset, unit is nanoseconds. + The delay from the default sample time before the actual + sample of the rxd input signal occurs. The "rx_sample_delay" + is an optional feature of the designware controller, and the + upper limit is also subject to controller configuration. + unevaluatedProperties: false required: @@ -129,5 +144,11 @@ examples: num-cs = <2>; cs-gpios = <&gpio0 13 0>, <&gpio0 14 0>; + rx-sample-delay-ns = <3>; + spi-flash@1 { + compatible = "spi-nand"; + reg = <1>; + rx-sample-delay-ns = <7>; + }; }; ... |