GPIO: Add driver for 74xx-ICs with MMIO access
This patch adds driver to support GPIO functionality for 74xx-compatible ICs with MMIO access. Compatible models include: 1 bit: 741G125 (Input), 741G74 (Output) 2 bits: 742G125 (Input), 7474 (Output) 4 bits: 74125 (Input), 74175 (Output) 6 bits: 74365 (Input), 74174 (Output) 8 bits: 74244 (Input), 74273 (Output) 16 bits: 741624 (Input), 7416374 (Output) Signed-off-by: NAlexander Shiyan <shc_work@mail.ru> Reviewed-by: NAlexandre Courbot <acourbot@nvidia.com> Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
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drivers/gpio/gpio-74xx-mmio.c
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