Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
35 lines
1.3 KiB
Plaintext
35 lines
1.3 KiB
Plaintext
Microchip PIC32 SPI Master controller
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Required properties:
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- compatible: Should be "microchip,pic32mzda-spi".
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- reg: Address and length of register space for the device.
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- interrupts: Should contain all three spi interrupts in sequence
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of <fault-irq>, <receive-irq>, <transmit-irq>.
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- interrupt-names: Should be "fault", "rx", "tx" in order.
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- clocks: Phandle of the clock generating SPI clock on the bus.
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- clock-names: Should be "mck0".
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- cs-gpios: Specifies the gpio pins to be used for chipselects.
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See: Documentation/devicetree/bindings/spi/spi-bus.txt
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Optional properties:
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- dmas: Two or more DMA channel specifiers following the convention outlined
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in Documentation/devicetree/bindings/dma/dma.txt
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- dma-names: Names for the dma channels. There must be at least one channel
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named "spi-tx" for transmit and named "spi-rx" for receive.
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Example:
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spi1: spi@1f821000 {
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compatible = "microchip,pic32mzda-spi";
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reg = <0x1f821000 0x200>;
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interrupts = <109 IRQ_TYPE_LEVEL_HIGH>,
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<110 IRQ_TYPE_LEVEL_HIGH>,
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<111 IRQ_TYPE_LEVEL_HIGH>;
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interrupt-names = "fault", "rx", "tx";
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clocks = <&PBCLK2>;
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clock-names = "mck0";
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cs-gpios = <&gpio3 4 GPIO_ACTIVE_LOW>;
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dmas = <&dma 134>, <&dma 135>;
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dma-names = "spi-rx", "spi-tx";
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};
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