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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>
Cc: <patrice.chotard@foss.st.com>, <christophe.kerello@foss.st.com>
Subject: [PATCH v3 1/3] mtd: spinand: Add spinand_block_unlock() helper
Date: Thu, 27 May 2021 18:12:50 +0200	[thread overview]
Message-ID: <20210527161252.16620-2-patrice.chotard@foss.st.com> (raw)
In-Reply-To: <20210527161252.16620-1-patrice.chotard@foss.st.com>

From: Patrice Chotard <patrice.chotard@foss.st.com>

Put code responsible of block unlocking in spinand_block_unlock().
This function will be needed by the future SPI-NAND resume ops.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
---
 drivers/mtd/nand/spi/core.c | 32 ++++++++++++++++++++++----------
 1 file changed, 22 insertions(+), 10 deletions(-)

diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c
index 17f63f95f4a2..095742e5bc2b 100644
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -1074,12 +1074,30 @@ static int spinand_detect(struct spinand_device *spinand)
 	return 0;
 }
 
+static int spinand_block_unlock(struct spinand_device *spinand)
+{
+	struct nand_device *nand = spinand_to_nand(spinand);
+	int ret = 0, i;
+
+	for (i = 0; i < nand->memorg.ntargets; i++) {
+		ret = spinand_select_target(spinand, i);
+		if (ret)
+			return ret;
+
+		ret = spinand_lock_block(spinand, BL_ALL_UNLOCKED);
+		if (ret)
+			return ret;
+	}
+
+	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
@@ -1137,15 +1155,9 @@ static int spinand_init(struct spinand_device *spinand)
 	}
 
 	/* 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 = spinand_block_unlock(spinand);
+	if (ret)
+		goto err_manuf_cleanup;
 
 	ret = nanddev_init(nand, &spinand_ops, THIS_MODULE);
 	if (ret)
-- 
2.17.1


  reply	other threads:[~2021-05-27 16:14 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-27 16:12 [PATCH v3 0/3] mtd: spinand: add SPI-NAND MTD resume handler patrice.chotard
2021-05-27 16:12 ` patrice.chotard [this message]
2021-05-27 16:12 ` [PATCH v3 2/3] mtd: spinand: add spinand_read_cfg() helper patrice.chotard
2021-05-27 16:12 ` [PATCH v3 3/3] mtd: spinand: add SPI-NAND MTD resume handler patrice.chotard
2021-05-27 16:23   ` Miquel Raynal
2021-05-28  8:22     ` Patrice CHOTARD
2021-05-28 12:05   ` Pratyush Yadav
2021-05-28 12:51     ` Patrice CHOTARD
2021-05-28 13:17       ` Pratyush Yadav
2021-05-28 14:31         ` Patrice CHOTARD

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