linux-kernel - [PATCH v2 2/5] mtd: spi-nor: micron-st: move set_octal_dtr to late

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Message-Id: <20251112-nor-v2-2-8699383714b9@nxp.com>
Date: Wed, 12 Nov 2025 14:36:20 +0800
From: Haibo Chen <haibo.chen@....com>
To: Tudor Ambarus <tudor.ambarus@...aro.org>, 
 Pratyush Yadav <pratyush@...nel.org>, Michael Walle <mwalle@...nel.org>, 
 Miquel Raynal <miquel.raynal@...tlin.com>, 
 Richard Weinberger <richard@....at>, Vignesh Raghavendra <vigneshr@...com>
Cc: linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Haibo Chen <haibo.chen@....com>, imx@...ts.linux.dev
Subject: [PATCH v2 2/5] mtd: spi-nor: micron-st: move set_octal_dtr to
 late_init()

Move params->set_octal_dtr from flash_info->fixups->default_init()
to spi_nor_manufacturer-> fixups-> late_init(), this can cover
all Micorn and ST chips without repeat in each chip's flash_info.

With this, we can also remove flash_info->size if chip has SFDP.

Signed-off-by: Haibo Chen <haibo.chen@....com>
---
 drivers/mtd/spi-nor/micron-st.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-st.c
index 92eb14ca76c57f29ece1edb3fe652c56d1c2888f..81a9bead1434056cce0893c97bd35ea248c15894 100644
--- a/drivers/mtd/spi-nor/micron-st.c
+++ b/drivers/mtd/spi-nor/micron-st.c
@@ -159,11 +159,6 @@ static int micron_st_nor_two_die_late_init(struct spi_nor *nor)
 	return spi_nor_set_4byte_addr_mode(nor, true);
 }
 
-static void mt35xu512aba_default_init(struct spi_nor *nor)
-{
-	nor->params->set_octal_dtr = micron_st_nor_set_octal_dtr;
-}
-
 static int mt35xu512aba_post_sfdp_fixup(struct spi_nor *nor)
 {
 	/* Set the Fast Read settings. */
@@ -187,7 +182,6 @@ static int mt35xu512aba_post_sfdp_fixup(struct spi_nor *nor)
 }
 
 static const struct spi_nor_fixups mt35xu512aba_fixups = {
-	.default_init = mt35xu512aba_default_init,
 	.post_sfdp = mt35xu512aba_post_sfdp_fixup,
 };
 
@@ -635,6 +629,8 @@ static int micron_st_nor_late_init(struct spi_nor *nor)
 	if (!params->set_4byte_addr_mode)
 		params->set_4byte_addr_mode = spi_nor_set_4byte_addr_mode_wren_en4b_ex4b;
 
+	params->set_octal_dtr = micron_st_nor_set_octal_dtr;
+
 	return 0;
 }
 

-- 
2.34.1