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author | 2020-01-23 12:37:18 +0000 | |
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committer | 2020-01-23 12:37:18 +0000 | |
commit | 754a36a58c29718bf5e28b8789b17bffbb60e8a6 (patch) | |
tree | e0772eb7f3248ce030b52774e57f510f85933d58 /Documentation/devicetree/bindings/spi/spi-stm32.txt | |
parent | Merge branch 'spi-5.5' into spi-linus (diff) | |
parent | dt-binding: spi: add NPCM PSPI reset binding (diff) | |
download | linux-754a36a58c29718bf5e28b8789b17bffbb60e8a6.tar.gz linux-754a36a58c29718bf5e28b8789b17bffbb60e8a6.tar.bz2 linux-754a36a58c29718bf5e28b8789b17bffbb60e8a6.zip |
Merge branch 'spi-5.6' into spi-next
Diffstat (limited to 'Documentation/devicetree/bindings/spi/spi-stm32.txt')
-rw-r--r-- | Documentation/devicetree/bindings/spi/spi-stm32.txt | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/Documentation/devicetree/bindings/spi/spi-stm32.txt b/Documentation/devicetree/bindings/spi/spi-stm32.txt deleted file mode 100644 index d82755c63eaf..000000000000 --- a/Documentation/devicetree/bindings/spi/spi-stm32.txt +++ /dev/null @@ -1,62 +0,0 @@ -STMicroelectronics STM32 SPI Controller - -The STM32 SPI controller is used to communicate with external devices using -the Serial Peripheral Interface. It supports full-duplex, half-duplex and -simplex synchronous serial communication with external devices. It supports -from 4 to 32-bit data size. Although it can be configured as master or slave, -only master is supported by the driver. - -Required properties: -- compatible: Should be one of: - "st,stm32h7-spi" - "st,stm32f4-spi" -- reg: Offset and length of the device's register set. -- interrupts: Must contain the interrupt id. -- clocks: Must contain an entry for spiclk (which feeds the internal clock - generator). -- #address-cells: Number of cells required to define a chip select address. -- #size-cells: Should be zero. - -Optional properties: -- resets: Must contain the phandle to the reset controller. -- A pinctrl state named "default" may be defined to set pins in mode of - operation for SPI transfer. -- dmas: DMA specifiers for tx and rx dma. DMA fifo mode must be used. See the - STM32 DMA bindings, Documentation/devicetree/bindings/dma/stm32-dma.txt. -- dma-names: DMA request names should include "tx" and "rx" if present. -- cs-gpios: list of GPIO chip selects. See the SPI bus bindings, - Documentation/devicetree/bindings/spi/spi-bus.txt - - -Child nodes represent devices on the SPI bus - See ../spi/spi-bus.txt - -Optional properties: -- st,spi-midi-ns: Only for STM32H7, (Master Inter-Data Idleness) minimum time - delay in nanoseconds inserted between two consecutive data - frames. - - -Example: - spi2: spi@40003800 { - #address-cells = <1>; - #size-cells = <0>; - compatible = "st,stm32h7-spi"; - reg = <0x40003800 0x400>; - interrupts = <36>; - clocks = <&rcc SPI2_CK>; - resets = <&rcc 1166>; - dmas = <&dmamux1 0 39 0x400 0x01>, - <&dmamux1 1 40 0x400 0x01>; - dma-names = "rx", "tx"; - pinctrl-0 = <&spi2_pins_b>; - pinctrl-names = "default"; - cs-gpios = <&gpioa 11 0>; - - aardvark@0 { - compatible = "totalphase,aardvark"; - reg = <0>; - spi-max-frequency = <4000000>; - st,spi-midi-ns = <4000>; - }; - }; |