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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/spi/microchip,spi-pic32.txt | |
parent | Initial commit. (diff) | |
download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/devicetree/bindings/spi/microchip,spi-pic32.txt | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/microchip,spi-pic32.txt b/Documentation/devicetree/bindings/spi/microchip,spi-pic32.txt new file mode 100644 index 000000000..79de379f4 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/microchip,spi-pic32.txt @@ -0,0 +1,34 @@ +Microchip PIC32 SPI Master controller + +Required properties: +- compatible: Should be "microchip,pic32mzda-spi". +- reg: Address and length of register space for the device. +- interrupts: Should contain all three spi interrupts in sequence + of <fault-irq>, <receive-irq>, <transmit-irq>. +- interrupt-names: Should be "fault", "rx", "tx" in order. +- clocks: Phandle of the clock generating SPI clock on the bus. +- clock-names: Should be "mck0". +- cs-gpios: Specifies the gpio pins to be used for chipselects. + See: Documentation/devicetree/bindings/spi/spi-bus.txt + +Optional properties: +- dmas: Two or more DMA channel specifiers following the convention outlined + in Documentation/devicetree/bindings/dma/dma.txt +- dma-names: Names for the dma channels. There must be at least one channel + named "spi-tx" for transmit and named "spi-rx" for receive. + +Example: + +spi1: spi@1f821000 { + compatible = "microchip,pic32mzda-spi"; + reg = <0x1f821000 0x200>; + interrupts = <109 IRQ_TYPE_LEVEL_HIGH>, + <110 IRQ_TYPE_LEVEL_HIGH>, + <111 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "fault", "rx", "tx"; + clocks = <&PBCLK2>; + clock-names = "mck0"; + cs-gpios = <&gpio3 4 GPIO_ACTIVE_LOW>; + dmas = <&dma 134>, <&dma 135>; + dma-names = "spi-rx", "spi-tx"; +}; |