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

[ Upstream commit 4dd7ef970bee8a93e1817ec028a7e26aef046d0d ]

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
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/mtd/nand/raw/arasan-nand-controller.c b/drivers/mtd/nand/raw/arasan-nand-controller.c
index cea57de5e6cd3333cbd9becbdfec1b131fe9764c..f9fb3b7a3ec398883c0b95c347ae28a64cbdeaa8 100644 (file)
--- a/drivers/mtd/nand/raw/arasan-nand-controller.c
+++ b/drivers/mtd/nand/raw/arasan-nand-controller.c
@@ -884,6 +884,11 @@ 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;