ARM: Orion: add dbg_show function to gpio-orion driver
This patch adds a dedicated dbg_show function to the gpio-mvebu driver. In addition to the generic gpiolib informations, this function displays informations related with the specific Marvell registers (blink enable, data in polarity, interrupt masks and cause). Signed-off-by: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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