mtd: rawnand: arasan: Check the proposed data interface is supported

Check the data interface is supported in ->setup_interface() before
acknowledging the timings.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210505213750.257417-3-miquel.raynal@bootlin.com

diff --git a/drivers/mtd/nand/raw/arasan-nand-controller.c b/drivers/mtd/nand/raw/arasan-nand-controller.c
index 549aac00228ebf5a1a2ab78b1dc2c5fab2e4481b..65a52bb2731e6b5e867dc1e9f46a05eaf26e2f83 100644 (file)
--- a/drivers/mtd/nand/raw/arasan-nand-controller.c
+++ b/drivers/mtd/nand/raw/arasan-nand-controller.c
@@ -861,6 +861,11 @@ static int anfc_setup_interface(struct nand_chip *chip, int target,
        struct anand *anand = to_anand(chip);
        struct arasan_nfc *nfc = to_anfc(chip->controller);
        struct device_node *np = nfc->dev->of_node;
+       const struct nand_sdr_timings *sdr;
+
+       sdr = nand_get_sdr_timings(conf);
+       if (IS_ERR(sdr))
+               return PTR_ERR(sdr);
 
        if (target < 0)
                return 0;