Re: [PATCH v2 1/2] dt-bindings: spi: Qualcomm Quad SPI(QSPI) documentation

[Stephen Boyd]

Quoting Ryan Case (2018-09-20 15:40:54)
> diff --git a/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.txt b/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.txt
> new file mode 100644
> index 000000000000..ecfb1e2bd520
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.txt
> @@ -0,0 +1,36 @@
> +Qualcomm Quad Serial Peripheral Interface (QSPI)
> +
> +The QSPI controller allows SPI protocol communication in single, dual, or quad
> +wire transmission modes for read/write access to slaves such as NOR flash.
> +
> +Required properties:
> +- compatible:  Should contain:
> +               "qcom,sdm845-qspi"

Does someone have a more generic compatible string that can be added
here to indicate the type of quad SPI controller this is? I really doubt
this is a one-off hardware block for the specific SDM845 SoC. 

> +- reg:         Should contain the base register location and length.
> +- interrupts:  Interrupt number used by the controller.
> +- clocks:      Should contain the core and AHB clock.
> +- clock-names: Should be "core" for core clock and "iface" for AHB clock.
> +