| Message ID | 20241105-asahi-spi-v4-1-d9734f089fc9@jannau.net (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Apple SPI controller driver | expand |
> From: Janne Grunau via B4 Relay <devnull+j.jannau.net@kernel.org> > Date: Tue, 05 Nov 2024 09:08:29 +0100 > > From: Hector Martin <marcan@marcan.st> > > The Apple SPI controller is present in SoCs such as the M1 (t8103) and > M1 Pro/Max (t600x). This controller uses one IRQ and one clock, and > doesn't need any special properties, so the binding is trivial. Matches what is currently in use for U-Boot and OpenBSD. > Signed-off-by: Hector Martin <marcan@marcan.st> > Reviewed-by: Rob Herring <robh@kernel.org> > Acked-by: Nick Chan <towinchenmi@gmail.com> > Reviewed-by: Conor Dooley <conor.dooley@microchip.com> > Signed-off-by: Janne Grunau <j@jannau.net> Reviewed-by: Mark Kettenis <kettenis@openbsd.org> > --- > .../devicetree/bindings/spi/apple,spi.yaml | 62 ++++++++++++++++++++++ > 1 file changed, 62 insertions(+) > > diff --git a/Documentation/devicetree/bindings/spi/apple,spi.yaml b/Documentation/devicetree/bindings/spi/apple,spi.yaml > new file mode 100644 > index 0000000000000000000000000000000000000000..7bef605a296353a62252282af4ba45a71b20b7b6 > --- /dev/null > +++ b/Documentation/devicetree/bindings/spi/apple,spi.yaml > @@ -0,0 +1,62 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/spi/apple,spi.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Apple ARM SoC SPI controller > + > +allOf: > + - $ref: spi-controller.yaml# > + > +maintainers: > + - Hector Martin <marcan@marcan.st> > + > +properties: > + compatible: > + items: > + - enum: > + - apple,t8103-spi > + - apple,t8112-spi > + - apple,t6000-spi > + - const: apple,spi > + > + reg: > + maxItems: 1 > + > + clocks: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + power-domains: > + maxItems: 1 > + > +required: > + - compatible > + - reg > + - clocks > + - interrupts > + > +unevaluatedProperties: false > + > +examples: > + - | > + #include <dt-bindings/interrupt-controller/apple-aic.h> > + #include <dt-bindings/interrupt-controller/irq.h> > + > + soc { > + #address-cells = <2>; > + #size-cells = <2>; > + > + spi@39b104000 { > + compatible = "apple,t6000-spi", "apple,spi"; > + reg = <0x3 0x9b104000 0x0 0x4000>; > + interrupt-parent = <&aic>; > + interrupts = <AIC_IRQ 0 1107 IRQ_TYPE_LEVEL_HIGH>; > + #address-cells = <1>; > + #size-cells = <0>; > + clocks = <&clk>; > + }; > + }; > > -- > 2.47.0 > > > >
diff --git a/Documentation/devicetree/bindings/spi/apple,spi.yaml b/Documentation/devicetree/bindings/spi/apple,spi.yaml new file mode 100644 index 0000000000000000000000000000000000000000..7bef605a296353a62252282af4ba45a71b20b7b6 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/apple,spi.yaml @@ -0,0 +1,62 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/apple,spi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Apple ARM SoC SPI controller + +allOf: + - $ref: spi-controller.yaml# + +maintainers: + - Hector Martin <marcan@marcan.st> + +properties: + compatible: + items: + - enum: + - apple,t8103-spi + - apple,t8112-spi + - apple,t6000-spi + - const: apple,spi + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + interrupts: + maxItems: 1 + + power-domains: + maxItems: 1 + +required: + - compatible + - reg + - clocks + - interrupts + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/apple-aic.h> + #include <dt-bindings/interrupt-controller/irq.h> + + soc { + #address-cells = <2>; + #size-cells = <2>; + + spi@39b104000 { + compatible = "apple,t6000-spi", "apple,spi"; + reg = <0x3 0x9b104000 0x0 0x4000>; + interrupt-parent = <&aic>; + interrupts = <AIC_IRQ 0 1107 IRQ_TYPE_LEVEL_HIGH>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&clk>; + }; + };