2018-11-09 12:30:51 +00:00
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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Subject: [PATCH] Revert "mtd: nand: Remove unused chip->write_page() hook"
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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This reverts commit f107d7a43923a83d837b3ea3c7b7de58cd014bbd.
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OpenWrt's downstream driver mtk_nand2 still uses that callback.
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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
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---
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--- a/drivers/mtd/nand/nand_base.c
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+++ b/drivers/mtd/nand/nand_base.c
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@@ -2577,7 +2577,7 @@ static int nand_write_page_syndrome(stru
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}
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/**
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- * nand_write_page - write one page
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+ * nand_write_page - [REPLACEABLE] write one page
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* @mtd: MTD device structure
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* @chip: NAND chip descriptor
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* @offset: address offset within the page
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@@ -2761,9 +2761,9 @@ static int nand_do_write_ops(struct mtd_
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memset(chip->oob_poi, 0xff, mtd->oobsize);
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}
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- ret = nand_write_page(mtd, chip, column, bytes, wbuf,
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- oob_required, page,
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- (ops->mode == MTD_OPS_RAW));
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+ ret = chip->write_page(mtd, chip, column, bytes, wbuf,
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+ oob_required, page,
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+ (ops->mode == MTD_OPS_RAW));
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if (ret)
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break;
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@@ -4719,6 +4719,9 @@ int nand_scan_tail(struct mtd_info *mtd)
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}
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}
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+ if (!chip->write_page)
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+ chip->write_page = nand_write_page;
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+
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/*
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* Check ECC mode, default to software if 3byte/512byte hardware ECC is
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* selected and we have 256 byte pagesize fallback to software ECC
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--- a/include/linux/mtd/rawnand.h
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+++ b/include/linux/mtd/rawnand.h
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2020-07-03 22:19:51 +00:00
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@@ -860,6 +860,7 @@ struct nand_manufacturer_ops {
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2018-11-09 12:30:51 +00:00
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* structure which is shared among multiple independent
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* devices.
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* @priv: [OPTIONAL] pointer to private chip data
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+ * @write_page: [REPLACEABLE] High-level page write function
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* @manufacturer: [INTERN] Contains manufacturer information
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*/
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2020-07-03 22:19:51 +00:00
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@@ -883,6 +884,9 @@ struct nand_chip {
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2018-11-09 12:30:51 +00:00
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int(*waitfunc)(struct mtd_info *mtd, struct nand_chip *this);
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int (*erase)(struct mtd_info *mtd, int page);
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int (*scan_bbt)(struct mtd_info *mtd);
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+ int (*write_page)(struct mtd_info *mtd, struct nand_chip *chip,
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+ uint32_t offset, int data_len, const uint8_t *buf,
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+ int oob_required, int page, int raw);
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int (*onfi_set_features)(struct mtd_info *mtd, struct nand_chip *chip,
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int feature_addr, uint8_t *subfeature_para);
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int (*onfi_get_features)(struct mtd_info *mtd, struct nand_chip *chip,
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