linux-kernel - [PATCH v4 0/2] mtd: spi-nand: Add support for randomizer feature

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Message-Id: <20260203021358.693291-1-linchengming884@gmail.com>
Date: Tue,  3 Feb 2026 10:13:56 +0800
From: Cheng Ming Lin <linchengming884@...il.com>
To: Miquel Raynal <miquel.raynal@...tlin.com>,
	Vignesh Raghavendra <vigneshr@...com>
Cc: Richard Weinberger <richard@....at>,
	Tudor Ambarus <tudor.ambarus@...aro.org>,
	Martin Kurbanov <mmkurbanov@...utedevices.com>,
	Mikhail Kshevetskiy <mikhail.kshevetskiy@...sys.eu>,
	Pratyush Yadav <pratyush@...nel.org>,
	linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	alvinzhou@...c.com.tw,
	Cheng Ming Lin <chengminglin@...c.com.tw>
Subject: [PATCH v4 0/2] mtd: spi-nand: Add support for randomizer feature

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

This patch series introduces randomizer support for SPI NAND devices.

Patch 1 adds the hook and initialization logic to the core framework.
Patch 2 implements the randomizer setting specifically for Macronix
chips (MX35LF/UF series) and allows control via device tree.

v4:
* Fix a build error in spinand_randomizer_init() where a value was
  returned from a void function. (Reported by kernel test robot)
* Update the return type to int.

v3:
* Revert the device tree property to the vendor-specific
  "mxic,randomizer-enable" to strictly follow vendor-specific bindings.

* Update the 'set_randomizer' callback signature to accept a boolean
  'enable' argument, allowing the feature to be explicitly enabled or
  disabled.

* Switch the implementation to use the standard SET_FEATURE command
  to modify the Configuration Register (0x10), replacing the previous
  special program command method.

v2:
* Create a global NAND DT property

Cheng Ming Lin (2):
  mtd: spi-nand: Add support for randomizer
  mtd: spi-nand: macronix: Enable randomizer support

 drivers/mtd/nand/spi/core.c     | 23 ++++++++++++++++
 drivers/mtd/nand/spi/macronix.c | 47 ++++++++++++++++++++++++++-------
 include/linux/mtd/spinand.h     |  9 +++++++
 3 files changed, 69 insertions(+), 10 deletions(-)

-- 
2.25.1