i2c: img-scb: do dummy writes before fifo access
Move scb_wr_rd_fence to before reading from fifo and writing to fifo to make sure the the first read/write is done after the required number of cycles. Fixes: commit 27bce457 ("i2c: img-scb: Add Imagination Technologies I2C SCB driver") Signed-off-by: NSifan Naeem <sifan.naeem@imgtec.com> Acked-by: NJames Hogan <james.hogan@imgtec.com> Reviewed-by: NJames Hartley <james.hartley@imgtec.com> Signed-off-by: NWolfram Sang <wsa@the-dreams.de>
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