In order to make sure we use ->exec_op() to wait for chip readiness
when it's available we provide an helper that does the selection
between ->exec_op(), udelay(chip->chip_delay) and nand_wait_ready()
based on what's implemented by the controller driver.
We then use it in nand_wait_readrdy().
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
52f05b6b87