From: <patrice.chotard@foss.st.com>
To: Mark Brown <broonie@kernel.org>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Vignesh Raghavendra <vigneshr@ti.com>,
Boris Brezillon <boris.brezillon@collabora.com>,
<linux-mtd@lists.infradead.org>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
<linux-spi@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, Pratyush Yadav <p.yadav@ti.com>
Cc: <patrice.chotard@foss.st.com>, <christophe.kerello@foss.st.com>
Subject: [PATCH v4 1/3] mtd: spinand: Add spinand_init_flash() helper
Date: Fri, 28 May 2021 16:16:37 +0200 [thread overview]
Message-ID: <20210528141639.3194-2-patrice.chotard@foss.st.com> (raw)
In-Reply-To: <20210528141639.3194-1-patrice.chotard@foss.st.com>
From: Patrice Chotard <patrice.chotard@foss.st.com>
Add spinand_init_flash() helper which implements
all needed init for future SPI-NAND resume ops.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
---
drivers/mtd/nand/spi/core.c | 66 +++++++++++++++++++++++--------------
1 file changed, 41 insertions(+), 25 deletions(-)
diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c
index 17f63f95f4a2..1f39a38fbf69 100644
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -1074,12 +1074,51 @@ static int spinand_detect(struct spinand_device *spinand)
return 0;
}
+static int spinand_init_flash(struct spinand_device *spinand)
+{
+ struct device *dev = &spinand->spimem->spi->dev;
+ struct nand_device *nand = spinand_to_nand(spinand);
+ int ret, i;
+
+ ret = spinand_init_quad_enable(spinand);
+ if (ret)
+ return ret;
+
+ ret = spinand_upd_cfg(spinand, CFG_OTP_ENABLE, 0);
+ if (ret)
+ return ret;
+
+ ret = spinand_manufacturer_init(spinand);
+ if (ret) {
+ dev_err(dev,
+ "Failed to initialize the SPI NAND chip (err = %d)\n",
+ ret);
+ return ret;
+ }
+
+ /* After power up, all blocks are locked, so unlock them here. */
+ for (i = 0; i < nand->memorg.ntargets; i++) {
+ ret = spinand_select_target(spinand, i);
+ if (ret)
+ break;
+
+ ret = spinand_lock_block(spinand, BL_ALL_UNLOCKED);
+ if (ret)
+ break;
+ }
+
+ if (ret)
+ spinand_manufacturer_cleanup(spinand);
+
+ return ret;
+}
+
static int spinand_init(struct spinand_device *spinand)
{
struct device *dev = &spinand->spimem->spi->dev;
struct mtd_info *mtd = spinand_to_mtd(spinand);
struct nand_device *nand = mtd_to_nanddev(mtd);
- int ret, i;
+ int ret;
/*
* We need a scratch buffer because the spi_mem interface requires that
@@ -1112,22 +1151,10 @@ static int spinand_init(struct spinand_device *spinand)
if (ret)
goto err_free_bufs;
- ret = spinand_init_quad_enable(spinand);
+ ret = spinand_init_flash(spinand);
if (ret)
goto err_free_bufs;
- ret = spinand_upd_cfg(spinand, CFG_OTP_ENABLE, 0);
- if (ret)
- goto err_free_bufs;
-
- ret = spinand_manufacturer_init(spinand);
- if (ret) {
- dev_err(dev,
- "Failed to initialize the SPI NAND chip (err = %d)\n",
- ret);
- goto err_free_bufs;
- }
-
ret = spinand_create_dirmaps(spinand);
if (ret) {
dev_err(dev,
@@ -1136,17 +1163,6 @@ static int spinand_init(struct spinand_device *spinand)
goto err_manuf_cleanup;
}
- /* After power up, all blocks are locked, so unlock them here. */
- for (i = 0; i < nand->memorg.ntargets; i++) {
- ret = spinand_select_target(spinand, i);
- if (ret)
- goto err_manuf_cleanup;
-
- ret = spinand_lock_block(spinand, BL_ALL_UNLOCKED);
- if (ret)
- goto err_manuf_cleanup;
- }
-
ret = nanddev_init(nand, &spinand_ops, THIS_MODULE);
if (ret)
goto err_manuf_cleanup;
--
2.17.1
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next prev parent reply other threads:[~2021-05-28 14:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-28 14:16 [PATCH v4 0/3] mtd: spinand: add SPI-NAND MTD resume handler patrice.chotard
2021-05-28 14:16 ` patrice.chotard [this message]
2021-05-28 14:16 ` [PATCH v4 2/3] mtd: spinand: add spinand_read_cfg() helper patrice.chotard
2021-05-28 14:16 ` [PATCH v4 3/3] mtd: spinand: add SPI-NAND MTD resume handler patrice.chotard
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