On Fri, Oct 30, 2020 at 6:32 AM Ramuthevar,Vadivel MuruganX <vadivel.muruganx.ramuthevar@xxxxxxxxxxxxxxx> wrote: > + ddata = of_device_get_match_data(dev); > + if (ddata->hwcaps_mask & CQSPI_SUPPORTS_MULTI_CHIPSELECT) { > + if (of_property_read_u32(np, "num-chipselect", The standard SPI bindings in spi-controller.yaml already has a binding for this "num-cs" so please use that. It is also what your device tree binding is referencing, so if you were using "num-chipselect" the YAML check should give a warning? Yours, Linus Walleij