net: phy: spi_ks8995: add support for resetting switch using GPIO
When using device tree it is no more possible to reset the PHY at board level. Furthermore, doing in the driver allows to power down the switch when it is not used any more. The patch introduces a new optional property "reset-gpios" denoting an appropriate GPIO handle, e.g.: reset-gpios = <&gpio0 46 GPIO_ACTIVE_LOW> Signed-off-by: NHelmut Buchsbaum <helmut.buchsbaum@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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