| Message ID | 20200724111404.13293-5-lars.povlsen@microchip.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | spi: Adding support for Microchip Sparx5 SoC | expand |
On Fri, Jul 24, 2020 at 01:14:02PM +0200, Lars Povlsen wrote: > 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> > --- > .../bindings/spi/snps,dw-apb-ssi.yaml | 21 +++++++++++++++++++ > 1 file changed, 21 insertions(+) > > diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml > index c62cbe79f00dd..c0adaad1aa695 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: > + 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. Default value is 0. See below. > + $ref: /schemas/types.yaml#/definitions/uint32 Don't need a type for properties with unit suffixes. Also, add: 'default: 0' > + > patternProperties: > "^.*@[0-9a-f]+$": > 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>; > + }; > }; > ... > -- > 2.27.0 >
Rob Herring writes: > On Fri, Jul 24, 2020 at 01:14:02PM +0200, Lars Povlsen wrote: >> 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> >> --- >> .../bindings/spi/snps,dw-apb-ssi.yaml | 21 +++++++++++++++++++ >> 1 file changed, 21 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml >> index c62cbe79f00dd..c0adaad1aa695 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: >> + 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. Default value is 0. See below. >> + $ref: /schemas/types.yaml#/definitions/uint32 > > Don't need a type for properties with unit suffixes. > > Also, add: > > 'default: 0' > Hi Rob! Thank you for your input, all duly noted. ---Lars >> + >> patternProperties: >> "^.*@[0-9a-f]+$": >> 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>; >> + }; >> }; >> ... >> -- >> 2.27.0 >>
diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml index c62cbe79f00dd..c0adaad1aa695 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: + 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. Default value is 0. See below. + $ref: /schemas/types.yaml#/definitions/uint32 + patternProperties: "^.*@[0-9a-f]+$": 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>; + }; }; ...
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> --- .../bindings/spi/snps,dw-apb-ssi.yaml | 21 +++++++++++++++++++ 1 file changed, 21 insertions(+)