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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/spi-sprd.txt | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/spi/spi-sprd.txt')
-rw-r--r-- | Documentation/devicetree/bindings/spi/spi-sprd.txt | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/spi-sprd.txt b/Documentation/devicetree/bindings/spi/spi-sprd.txt new file mode 100644 index 000000000..3c7eacce0 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/spi-sprd.txt @@ -0,0 +1,33 @@ +Spreadtrum SPI Controller + +Required properties: +- compatible: Should be "sprd,sc9860-spi". +- reg: Offset and length of SPI controller register space. +- interrupts: Should contain SPI interrupt. +- clock-names: Should contain following entries: + "spi" for SPI clock, + "source" for SPI source (parent) clock, + "enable" for SPI module enable clock. +- clocks: List of clock input name strings sorted in the same order + as the clock-names property. +- #address-cells: The number of cells required to define a chip select + address on the SPI bus. Should be set to 1. +- #size-cells: Should be set to 0. + +Optional properties: +dma-names: Should contain names of the SPI used DMA channel. +dmas: Should contain DMA channels and DMA slave ids which the SPI used + sorted in the same order as the dma-names property. + +Example: +spi0: spi@70a00000{ + compatible = "sprd,sc9860-spi"; + reg = <0 0x70a00000 0 0x1000>; + interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; + clock-names = "spi", "source","enable"; + clocks = <&clk_spi0>, <&ext_26m>, <&clk_ap_apb_gates 5>; + dma-names = "rx_chn", "tx_chn"; + dmas = <&apdma 11 11>, <&apdma 12 12>; + #address-cells = <1>; + #size-cells = <0>; +}; |