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    SubjectRe: [PATCH net-next 1/3] dt-bindings: dp83867: add binding for io_impedance_ctrl nvmem cell
    On Mon, Jun 06, 2022 at 10:22:18PM +0200, Rasmus Villemoes wrote:
    > We have a board where measurements indicate that the current three
    > options - leaving IO_IMPEDANCE_CTRL at the (factory calibrated) reset
    > value or using one of the two boolean properties to set it to the
    > min/max value - are too coarse.
    >
    > There is no documented mapping from the 32 possible values of the
    > IO_IMPEDANCE_CTRL field to values in the range 35-70 ohms, and the
    > exact mapping is likely to vary from chip to chip. So add a DT binding
    > for an nvmem cell which can be populated during production with a
    > value suitable for each specific board.
    >
    > Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>

    Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew

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