[PATCH v4 09/31] mtd: nand: pxa3xx: read_page() returns max_bitflips
From: Ezequiel Garcia <hidden>
Date: 2013-11-07 15:17:13
Also in:
linux-devicetree
Subsystem:
memory technology devices (mtd), nand flash subsystem, the rest · Maintainers:
Miquel Raynal, Richard Weinberger, Vignesh Raghavendra, Linus Torvalds
As per the ecc.read_page() prototype, we must return the maximum number of bitflips that were corrected on any one region covering an ecc step. Signed-off-by: Ezequiel Garcia <redacted> --- drivers/mtd/nand/pxa3xx_nand.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index c578ca7..521d43e 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c@@ -751,6 +751,7 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd, { struct pxa3xx_nand_host *host = mtd->priv; struct pxa3xx_nand_info *info = host->info_data; + int max_bitflips = 0; chip->read_buf(mtd, buf, mtd->writesize); chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
@@ -758,6 +759,7 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd, if (info->retcode == ERR_SBERR) { switch (info->use_ecc) { case 1: + max_bitflips = 1; mtd->ecc_stats.corrected++; break; case 0:
@@ -776,7 +778,7 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd, mtd->ecc_stats.failed++; } - return 0; + return max_bitflips; } static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd)
--
1.8.1.5