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Message-Id: <20180703220029.19565-25-miquel.raynal@bootlin.com>
Date: Wed, 4 Jul 2018 00:00:21 +0200
From: Miquel Raynal <miquel.raynal@...tlin.com>
To: Wenyou Yang <wenyou.yang@...rochip.com>,
Josh Wu <rainyfeeling@...look.com>,
Tudor Ambarus <Tudor.Ambarus@...rochip.com>,
Boris Brezillon <boris.brezillon@...tlin.com>,
Miquel Raynal <miquel.raynal@...tlin.com>,
Richard Weinberger <richard@....at>,
David Woodhouse <dwmw2@...radead.org>,
Brian Norris <computersforpeace@...il.com>,
Marek Vasut <marek.vasut@...il.com>,
Nicolas Ferre <nicolas.ferre@...rochip.com>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Kamal Dasu <kdasu.kdev@...il.com>,
Masahiro Yamada <yamada.masahiro@...ionext.com>,
Han Xu <han.xu@....com>,
Harvey Hunt <harveyhuntnexus@...il.com>,
Vladimir Zapolskiy <vz@...ia.com>,
Sylvain Lemieux <slemieux.tyco@...il.com>,
Xiaolei Li <xiaolei.li@...iatek.com>,
Matthias Brugger <matthias.bgg@...il.com>,
Maxime Ripard <maxime.ripard@...tlin.com>,
Chen-Yu Tsai <wens@...e.org>,
Marc Gonzalez <marc.w.gonzalez@...e.fr>,
Mans Rullgard <mans@...sr.com>, Stefan Agner <stefan@...er.ch>
Cc: linux-mtd@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
bcm-kernel-feedback-list@...adcom.com,
linux-mediatek@...ts.infradead.org
Subject: [PATCH v2 24/32] mtd: rawnand: txx9ndfmc: convert driver to nand_scan()
Two helpers have been added to the core to make ECC-related
configuration between the detection phase and the final NAND scan. Use
these hooks and convert the driver to just use nand_scan() instead of
both nand_scan_ident() and nand_scan_tail().
Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
---
drivers/mtd/nand/raw/txx9ndfmc.c | 25 +++++++++++--------------
1 file changed, 11 insertions(+), 14 deletions(-)
diff --git a/drivers/mtd/nand/raw/txx9ndfmc.c b/drivers/mtd/nand/raw/txx9ndfmc.c
index b567d212fe7d..cac22dda799e 100644
--- a/drivers/mtd/nand/raw/txx9ndfmc.c
+++ b/drivers/mtd/nand/raw/txx9ndfmc.c
@@ -254,21 +254,17 @@ static void txx9ndfmc_initialize(struct platform_device *dev)
#define TXX9NDFMC_NS_TO_CYC(gbusclk, ns) \
DIV_ROUND_UP((ns) * DIV_ROUND_UP(gbusclk, 1000), 1000000)
-static int txx9ndfmc_nand_scan(struct mtd_info *mtd)
+static int txx9ndfmc_attach_chip(struct nand_chip *chip)
{
- struct nand_chip *chip = mtd_to_nand(mtd);
- int ret;
+ struct mtd_info *mtd = nand_to_mtd(chip);
- ret = nand_scan_ident(mtd, 1, NULL);
- if (!ret) {
- if (mtd->writesize >= 512) {
- /* Hardware ECC 6 byte ECC per 512 Byte data */
- chip->ecc.size = 512;
- chip->ecc.bytes = 6;
- }
- ret = nand_scan_tail(mtd);
+ if (mtd->writesize >= 512) {
+ /* Hardware ECC 6 byte ECC per 512 Byte data */
+ chip->ecc.size = 512;
+ chip->ecc.bytes = 6;
}
- return ret;
+
+ return 0;
}
static int __init txx9ndfmc_probe(struct platform_device *dev)
@@ -332,7 +328,7 @@ static int __init txx9ndfmc_probe(struct platform_device *dev)
chip->ecc.correct = txx9ndfmc_correct_data;
chip->ecc.hwctl = txx9ndfmc_enable_hwecc;
chip->ecc.mode = NAND_ECC_HW;
- /* txx9ndfmc_nand_scan will overwrite ecc.size and ecc.bytes */
+ /* nand_scan() will overwrite ecc.size and ecc.bytes */
chip->ecc.size = 256;
chip->ecc.bytes = 3;
chip->ecc.strength = 1;
@@ -359,7 +355,8 @@ static int __init txx9ndfmc_probe(struct platform_device *dev)
if (plat->wide_mask & (1 << i))
chip->options |= NAND_BUSWIDTH_16;
- if (txx9ndfmc_nand_scan(mtd)) {
+ chip->controller->attach_chip = txx9ndfmc_attach_chip;
+ if (nand_scan(mtd, 1)) {
kfree(txx9_priv->mtdname);
kfree(txx9_priv);
continue;
--
2.14.1
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