brcmfmac: Obtain reset GPIO

This grabs the reset GPIO and holds it de-asserted, if available.
Asserting this signal will make the SDIO card re-enumerate.

Cc: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2 files changed