linux-kernel - [PATCH v2 5/6] mtd: spi-nor: Add s3an_post_sfdp

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Message-ID: <20190824120650.14752-6-tudor.ambarus@microchip.com>
Date:   Sat, 24 Aug 2019 12:07:16 +0000
From:   <Tudor.Ambarus@...rochip.com>
To:     <boris.brezillon@...labora.com>, <marek.vasut@...il.com>,
        <vigneshr@...com>, <miquel.raynal@...tlin.com>, <richard@....at>,
        <linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
CC:     <Tudor.Ambarus@...rochip.com>
Subject: [PATCH v2 5/6] mtd: spi-nor: Add s3an_post_sfdp_fixups()

From: Tudor Ambarus <tudor.ambarus@...rochip.com>

s3an_nor_scan() was overriding the opcode selection done in
spi_nor_default_setup(). Set nor->setup() method in order to
avoid the unnecessary call to spi_nor_default_setup().

Signed-off-by: Tudor Ambarus <tudor.ambarus@...rochip.com>
---
 drivers/mtd/spi-nor/spi-nor.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index 17e6c96f9f9a..5e16f293a83b 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -2718,7 +2718,8 @@ static int spi_nor_check(struct spi_nor *nor)
 	return 0;
 }
 
-static int s3an_nor_scan(struct spi_nor *nor)
+static int s3an_nor_setup(struct spi_nor *nor,
+			  const struct spi_nor_hwcaps *hwcaps)
 {
 	int ret;
 
@@ -4546,6 +4547,11 @@ static void spansion_post_sfdp_fixups(struct spi_nor *nor)
 	nor->mtd.erasesize = nor->info->sector_size;
 }
 
+static void s3an_post_sfdp_fixups(struct spi_nor *nor)
+{
+	nor->params.setup = s3an_nor_setup;
+}
+
 /**
  * spi_nor_post_sfdp_fixups() - Updates the flash's parameters and settings
  * after SFDP has been parsed (is also called for SPI NORs that do not
@@ -4567,6 +4573,9 @@ static void spi_nor_post_sfdp_fixups(struct spi_nor *nor)
 		break;
 	}
 
+	if (nor->info->flags & SPI_S3AN)
+		s3an_post_sfdp_fixups(nor);
+
 	if (nor->info->fixups && nor->info->fixups->post_sfdp)
 		nor->info->fixups->post_sfdp(nor);
 }
@@ -4932,12 +4941,6 @@ int spi_nor_scan(struct spi_nor *nor, const char *name,
 		return -EINVAL;
 	}
 
-	if (info->flags & SPI_S3AN) {
-		ret = s3an_nor_scan(nor);
-		if (ret)
-			return ret;
-	}
-
 	/* Send all the required SPI flash commands to initialize device */
 	ret = spi_nor_init(nor);
 	if (ret)
-- 
2.9.5