From: Boris Brezillon <bbrezillon@kernel.org>
Date: Mon, 29 Oct 2018 16:18:39 +0000 (+0100)
Subject: mtd: nand: Add a helper to retrieve the number of pages per target
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=46b01d7efda29356d4dff88825e5ef51dd9f6bae;p=openwrt%2Fstaging%2Fblogic.git

mtd: nand: Add a helper to retrieve the number of pages per target

Will be used by the raw NAND framework.

Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
---

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 12d75402472a..cebc38b6d6f5 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -271,6 +271,20 @@ nanddev_pages_per_eraseblock(const struct nand_device *nand)
 	return nand->memorg.pages_per_eraseblock;
 }
 
+/**
+ * nanddev_pages_per_target() - Get the number of pages per target
+ * @nand: NAND device
+ *
+ * Return: the number of pages per target.
+ */
+static inline unsigned int
+nanddev_pages_per_target(const struct nand_device *nand)
+{
+	return nand->memorg.pages_per_eraseblock *
+	       nand->memorg.eraseblocks_per_lun *
+	       nand->memorg.luns_per_target;
+}
+
 /**
  * nanddev_per_page_oobsize() - Get NAND erase block size
  * @nand: NAND device