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Each chip is required to have a unique CS number ("reg" property) in the range 0-7, so there is no need to separately count the number of chips. Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20221229181526.53766-4-samuel@sholland.org