int (*xfer)(void *priv, const u8 *rx, u8 *tx, uint bytes);
};
-/*
- * There are times when the data lines are allowed to tristate. What
- * is actually sensed on the line depends on the hardware. It could
- * always be 0xFF/0x00 (if there are pull ups/downs), or things could
- * float and so we'd get garbage back. This func encapsulates that
- * scenario so we can worry about the details here.
- */
-static inline void sandbox_spi_tristate(u8 *buf, uint len)
-{
- /* XXX: make this into a user config option ? */
- memset(buf, 0xff, len);
-}
-
/*
* Extract the bus/cs from the spi spec and return the start of the spi
* client spec. If the bus/cs are invalid for the current config, then