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Message-Id: <20180720151527.16038-15-miquel.raynal@bootlin.com>
Date: Fri, 20 Jul 2018 17:15:06 +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 v4 14/35] mtd: rawnand: mtk: 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/mtk_nand.c | 75 ++++++++++++++++++++++++-----------------
1 file changed, 44 insertions(+), 31 deletions(-)
diff --git a/drivers/mtd/nand/raw/mtk_nand.c b/drivers/mtd/nand/raw/mtk_nand.c
index 7bc6be3f6ec0..967418f945ea 100644
--- a/drivers/mtd/nand/raw/mtk_nand.c
+++ b/drivers/mtd/nand/raw/mtk_nand.c
@@ -1250,13 +1250,54 @@ static int mtk_nfc_ecc_init(struct device *dev, struct mtd_info *mtd)
return 0;
}
+static int mtk_nfc_attach_chip(struct nand_chip *chip)
+{
+ struct mtd_info *mtd = nand_to_mtd(chip);
+ struct device *dev = mtd->dev.parent;
+ struct mtk_nfc *nfc = nand_get_controller_data(chip);
+ struct mtk_nfc_nand_chip *mtk_nand = to_mtk_nand(chip);
+ int len;
+ int ret;
+
+ if (chip->options & NAND_BUSWIDTH_16) {
+ dev_err(dev, "16bits buswidth not supported");
+ return -EINVAL;
+ }
+
+ /* store bbt magic in page, cause OOB is not protected */
+ if (chip->bbt_options & NAND_BBT_USE_FLASH)
+ chip->bbt_options |= NAND_BBT_NO_OOB;
+
+ ret = mtk_nfc_ecc_init(dev, mtd);
+ if (ret)
+ return ret;
+
+ ret = mtk_nfc_set_spare_per_sector(&mtk_nand->spare_per_sector, mtd);
+ if (ret)
+ return ret;
+
+ mtk_nfc_set_fdm(&mtk_nand->fdm, mtd);
+ mtk_nfc_set_bad_mark_ctl(&mtk_nand->bad_mark, mtd);
+
+ len = mtd->writesize + mtd->oobsize;
+ nfc->buffer = devm_kzalloc(dev, len, GFP_KERNEL);
+ if (!nfc->buffer)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static const struct nand_controller_ops mtk_nfc_controller_ops = {
+ .attach_chip = mtk_nfc_attach_chip,
+};
+
static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc,
struct device_node *np)
{
struct mtk_nfc_nand_chip *chip;
struct nand_chip *nand;
struct mtd_info *mtd;
- int nsels, len;
+ int nsels;
u32 tmp;
int ret;
int i;
@@ -1287,6 +1328,7 @@ static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc,
nand = &chip->nand;
nand->controller = &nfc->controller;
+ nand->controller->ops = &mtk_nfc_controller_ops;
nand_set_flash_node(nand, np);
nand_set_controller_data(nand, nfc);
@@ -1324,36 +1366,7 @@ static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc,
mtk_nfc_hw_init(nfc);
- ret = nand_scan_ident(mtd, nsels, NULL);
- if (ret)
- return ret;
-
- /* store bbt magic in page, cause OOB is not protected */
- if (nand->bbt_options & NAND_BBT_USE_FLASH)
- nand->bbt_options |= NAND_BBT_NO_OOB;
-
- ret = mtk_nfc_ecc_init(dev, mtd);
- if (ret)
- return -EINVAL;
-
- if (nand->options & NAND_BUSWIDTH_16) {
- dev_err(dev, "16bits buswidth not supported");
- return -EINVAL;
- }
-
- ret = mtk_nfc_set_spare_per_sector(&chip->spare_per_sector, mtd);
- if (ret)
- return ret;
-
- mtk_nfc_set_fdm(&chip->fdm, mtd);
- mtk_nfc_set_bad_mark_ctl(&chip->bad_mark, mtd);
-
- len = mtd->writesize + mtd->oobsize;
- nfc->buffer = devm_kzalloc(dev, len, GFP_KERNEL);
- if (!nfc->buffer)
- return -ENOMEM;
-
- ret = nand_scan_tail(mtd);
+ ret = nand_scan(mtd, nsels);
if (ret)
return ret;
--
2.14.1
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