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X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [137.201.242.129 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.0 DKIMWL_WL_MED DKIMwl.org - Whitelisted Medium sender X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org This patch is to add a callback function pointer for preparation routine of erase in nand_manufacturer_ops. Signed-off-by: Bean Huo --- drivers/mtd/nand/raw/internals.h | 2 ++ drivers/mtd/nand/raw/nand_base.c | 5 +++++ 2 files changed, 7 insertions(+) diff --git a/drivers/mtd/nand/raw/internals.h b/drivers/mtd/nand/raw/internals.h index fbf6ca0..8382948 100644 --- a/drivers/mtd/nand/raw/internals.h +++ b/drivers/mtd/nand/raw/internals.h @@ -42,6 +42,7 @@ * is here to let vendor specific code release those resources. * @fixup_onfi_param_page: apply vendor specific fixups to the ONFI parameter * page. This is called after the checksum is verified. + * @erase_pre: preparation before actually erase a physical block. */ struct nand_manufacturer_ops { void (*detect)(struct nand_chip *chip); @@ -49,6 +50,7 @@ struct nand_manufacturer_ops { void (*cleanup)(struct nand_chip *chip); void (*fixup_onfi_param_page)(struct nand_chip *chip, struct nand_onfi_params *p); + int (*erase_pre)(struct nand_chip *chip, int page); }; /** diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c index cca4b24..d446d1c 100644 --- a/drivers/mtd/nand/raw/nand_base.c +++ b/drivers/mtd/nand/raw/nand_base.c @@ -4246,6 +4246,11 @@ int nand_erase_nand(struct nand_chip *chip, struct erase_info *instr, (page + pages_per_block)) chip->pagebuf = -1; + if (chip->manufacturer.desc && chip->manufacturer.desc->ops && + chip->manufacturer.desc->ops->erase_pre) + chip->manufacturer.desc->ops->erase_pre(chip, + page & chip->pagemask); + if (chip->legacy.erase) status = chip->legacy.erase(chip, page & chip->pagemask);