[PATCH 44/52] mtd: rawnand: add a field in nand_chip to fill an array of IDs
Miquel Raynal
miquel.raynal at bootlin.com
Fri Mar 2 09:03:52 PST 2018
Add an alternate way to give to the core another ID table to later
remove the one given in nand_scan_ident() as part of the migration to
nand_scan().
Signed-off-by: Miquel Raynal <miquel.raynal at bootlin.com>
---
drivers/mtd/nand/raw/nand_base.c | 8 ++++++--
include/linux/mtd/rawnand.h | 3 +++
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 182904b2fc07..0d850dbf843d 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -5594,8 +5594,12 @@ static int nand_detect(struct nand_chip *chip, struct nand_flash_dev *type)
manufacturer = nand_get_manufacturer(maf_id);
chip->manufacturer.desc = manufacturer;
- if (!type)
- type = nand_flash_ids;
+ if (!type) {
+ if (chip->flash_ids)
+ type = chip->flash_ids;
+ else
+ type = nand_flash_ids;
+ }
/*
* Save the NAND_BUSWIDTH_16 flag before letting auto-detection logic
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 53bb6ef1a7c2..318c73a206fc 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -1201,6 +1201,7 @@ int nand_op_parser_exec_op(struct nand_chip *chip,
* chipnr is set to %NAND_DATA_IFACE_CHECK_ONLY this
* means the configuration should not be applied but
* only checked.
+ * @flash_ids: [OPTIONAL] local NAND flash ID table
* @bbt: [INTERN] bad block table pointer
* @bbt_td: [REPLACEABLE] bad block table descriptor for flash
* lookup.
@@ -1287,6 +1288,8 @@ struct nand_chip {
unsigned long buf_align;
struct nand_hw_control hwcontrol;
+ struct nand_flash_dev *flash_ids;
+
uint8_t *bbt;
struct nand_bbt_descr *bbt_td;
struct nand_bbt_descr *bbt_md;
--
2.14.1
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