linux-kernel - Does spi-gpio and bitband support 3-wire Bidirectional most/miso share pin usage?

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Message-ID: <CANHbGWtbjgLGmy_CxBJ43XVfq6zaaqFvmWWCAXe7NEidO9_fFQ@mail.gmail.com>
Date:	Sun, 26 Oct 2014 04:21:18 +0800
From:	V JobNickname <workofv@...il.com>
To:	linux-spi@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: Does spi-gpio and bitband support 3-wire Bidirectional most/miso
 share pin usage?

I have a device use 3-wire spi which are CS,SCK,and a DATA for
read/write.( maybe a.s.k.a SISO)
The command format like as p.18 in
www .newhavendisplay .com/app_notes/NV3035C.pdf

The spi-gpio can't register miso and mosi for same GPIO pin.
Also I traced SPI-3WIRE flag it seems only support half 3-wire which
only write or only read but share ping

Does current driver can support this kind of 3wire spi format? Or I
need to do some modify to support this 3-wire spi
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