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Make use of spi-mem poll status APIs to let advanced controllers optimize wait operations. This should also fix the high CPU usage for system that don't have a dedicated STATUS poll block logic. Signed-off-by: Patrice Chotard <[email protected]> Signed-off-by: Christophe Kerello <[email protected]> Reviewed-by: Boris Brezillon <[email protected]> Acked-by: Miquel Raynal <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Mark Brown <[email protected]>