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    SubjectRe: [PATCH 3/3] spi: dt-bindings: Add wait state polling flag
    On Thu, Mar 17, 2022 at 06:50:06AM +0530, Krishna Yarlagadda wrote:
    > Add flag to enable tpm wait state polling and Tegra Grace binding.

    TPM

    >
    > Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
    > ---
    > .../devicetree/bindings/spi/nvidia,tegra210-quad.yaml | 6 ++++++
    > 1 file changed, 6 insertions(+)
    >
    > diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
    > index 0296edd1de22..88b00fcad210 100644
    > --- a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
    > +++ b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
    > @@ -20,6 +20,7 @@ properties:
    > - nvidia,tegra186-qspi
    > - nvidia,tegra194-qspi
    > - nvidia,tegra234-qspi
    > + - nvidia,tegra-grace-qspi
    >
    > reg:
    > maxItems: 1
    > @@ -57,6 +58,11 @@ patternProperties:
    > spi-tx-bus-width:
    > enum: [1, 2, 4]
    >
    > + nvidia,wait-polling:
    > + description:
    > + Enable TPM wait state polling on supported chips.

    What's TPM?

    Why is this not implied by the compatible string?

    Also, how child node properties are handled has changed. See
    Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml. The
    NVidia specific properties should be refactored first before adding
    more.

    > + type: boolean
    > +
    > nvidia,tx-clk-tap-delay:
    > description:
    > Delays the clock going out to device with this tap value.
    > --
    > 2.17.1
    >
    >

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