Kernel-4.18.0-80.el8_nvidia,tegra114-spi

NVIDIA Tegra114 SPI controller.

Required properties:

• compatible : For Tegra114, must contain “nvidia,tegra114-spi”.
  Otherwise, must contain ‘“nvidia,-spi”, “nvidia,tegra114-spi”‘ where
  is tegra124, tegra132, or tegra210.
• reg: Should contain SPI registers location and length.
• interrupts: Should contain SPI interrupts.
• clock-names : Must include the following entries:
  • spi
• resets : Must contain an entry for each entry in reset-names.
  See ../reset/reset.txt for details.
• reset-names : Must include the following entries:
  • spi
• dmas : Must contain an entry for each entry in clock-names.
  See ../dma/dma.txt for details.
• dma-names : Must include the following entries:
  • rx
  • tx
• clocks : Must contain an entry for each entry in clock-names.
  See ../clocks/clock-bindings.txt for details.

Recommended properties:

• spi-max-frequency: Definition as per

                 Documentation/devicetree/bindings/spi/spi-bus.txt
  

  Example:

spi@7000d600 {
compatible = “nvidia,tegra114-spi”;
reg = <0x7000d600 0x200>;
interrupts = <0 82 0x04>;
spi-max-frequency = <25000000>;
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car 44>;
clock-names = “spi”;
resets = <&tegra_car 44>;
reset-names = “spi”;
dmas = <&apbdma 16>, <&apbdma 16>;
dma-names = “rx”, “tx”;
};