The read_page hook shall return the number of bitflips. Implement
that.
Signed-off-by: Sascha Hauer <[email protected]>
---
drivers/mtd/nand/nand_mxs.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/nand_mxs.c b/drivers/mtd/nand/nand_mxs.c
index b06b558..d5428bc 100644
--- a/drivers/mtd/nand/nand_mxs.c
+++ b/drivers/mtd/nand/nand_mxs.c
@@ -661,6 +661,7 @@ static int mxs_nand_ecc_read_page(struct mtd_info *mtd,
struct nand_chip *nand,
uint32_t channel = nand_info->dma_channel_base + nand_info->cur_chip;
uint32_t corrected = 0, failed = 0;
uint8_t *status;
+ unsigned int max_bitflips = 0;
int i, ret;
/* Compile the DMA descriptor - wait for ready. */
@@ -766,6 +767,7 @@ static int mxs_nand_ecc_read_page(struct mtd_info *mtd,
struct nand_chip *nand,
}
corrected += status[i];
+ max_bitflips = max_t(unsigned int, max_bitflips, status[i]);
}
/* Propagate ECC status to the owning MTD. */
@@ -787,10 +789,11 @@ static int mxs_nand_ecc_read_page(struct mtd_info *mtd,
struct nand_chip *nand,
memcpy(buf, nand_info->data_buf, mtd->writesize);
+ ret = 0;
rtn:
mxs_nand_return_dma_descs(nand_info);
- return ret;
+ return ret ? ret : max_bitflips;
}
/*
--
1.9.1
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