[PATCH v2 13/33] mtd: rawnand: fsl_elbc: Let .probe retry if local bus is missing

Uwe Kleine-König
2024-01-22T18:08:43Z

If during probe fsl_lbc_ctrl_dev is NULL that might just be because the
fsl_lbc driver didn't bind yet. So return -EPROBE_DEFER in this case to
make the driver core retry probing later.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
drivers/mtd/nand/raw/fsl_elbc_nand.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/fsl_elbc_nand.c b/drivers/mtd/nand/raw/fsl_elbc_nand.c
index 1e3a80f06f33..df6a0d5c86bb 100644
--- a/drivers/mtd/nand/raw/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/raw/fsl_elbc_nand.c
@@ -869,7 +869,8 @@ static int fsl_elbc_nand_probe(struct platform_device *pdev)
struct mtd_info *mtd;

if (!fsl_lbc_ctrl_dev || !fsl_lbc_ctrl_dev->regs)
- return -ENODEV;
+ return dev_err_probe(&pdev->dev, -EPROBE_DEFER, "lbc_ctrl_dev missing\n");
+
lbc = fsl_lbc_ctrl_dev->regs;
dev = fsl_lbc_ctrl_dev->dev;

--
2.43.0