[PATCH] mtd: spi-nor: macronix: Document support for additional flash aliases

From: Cheng Ming Lin <linchengming884@gmail.com>
To: Pratyush Yadav <pratyush@kernel.org>,
	Michael Walle <mwalle@kernel.org>,
	Takahiro Kuwano <takahiro.kuwano@infineon.com>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>
Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
	alvinzhou@mxic.com.tw, Cheng Ming Lin <chengminglin@mxic.com.tw>
Subject: [PATCH] mtd: spi-nor: macronix: Document support for additional flash aliases
Date: Fri, 10 Apr 2026 17:10:39 +0800	[thread overview]
Message-ID: <20260410091039.389911-1-linchengming884@gmail.com> (raw)

From: Cheng Ming Lin <chengminglin@mxic.com.tw>

Several Macronix SPI NOR flash devices share the same ID.
For instance, the MX25L51245G and MX25L51273G share the same ID
(0xc2201a) with the currently listed MX66L51235F.

Add these equivalent part numbers to the comments above their
corresponding flash_info entries.

While this change does not affect the functional driver logic, it
significantly improves the searchability of the kernel source tree.
This helps users easily verify that their specific physical part is
fully supported, preventing confusion and deterring redundant patch
submissions that attempt to add duplicate entries for these alias parts.

Signed-off-by: Cheng Ming Lin <chengminglin@mxic.com.tw>
---
 drivers/mtd/spi-nor/macronix.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/spi-nor/macronix.c b/drivers/mtd/spi-nor/macronix.c
index e97f5cbd9..c557525b0 100644
--- a/drivers/mtd/spi-nor/macronix.c
+++ b/drivers/mtd/spi-nor/macronix.c
@@ -138,7 +138,7 @@ static const struct flash_info macronix_nor_parts[] = {
 		.id = SNOR_ID(0xc2, 0x20, 0x19),
 		.fixups = &mx25l25635_fixups
 	}, {
-		/* MX66L51235F */
+		/* MX25L51245G, MX25L51273G, MX66L51235F */
 		.id = SNOR_ID(0xc2, 0x20, 0x1a),
 		.fixup_flags = SPI_NOR_4B_OPCODES,
 		.fixups = &macronix_qpp4b_fixups,
@@ -186,11 +186,11 @@ static const struct flash_info macronix_nor_parts[] = {
 		.size = SZ_16M,
 		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
 	}, {
-		/* MX25U51245G */
+		/* MX25U51245G, MX25U51293G */
 		.id = SNOR_ID(0xc2, 0x25, 0x3a),
 		.fixups = &macronix_qpp4b_fixups,
 	}, {
-		/* MX66U1G45G */
+		/* MX66U1G45G, MX66U1G93G */
 		.id = SNOR_ID(0xc2, 0x25, 0x3b),
 		.fixups = &macronix_qpp4b_fixups,
 	}, {
-- 
2.25.1


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