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From: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
To: Miquel Raynal <miquel.raynal@bootlin.com>,
	Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Lorenzo Bianconi <lorenzo@kernel.org>,
	Ray Liu <ray.liu@airoha.com>, Mark Brown <broonie@kernel.org>,
	Tudor Ambarus <tudor.ambarus@linaro.org>,
	Martin Kurbanov <mmkurbanov@salutedevices.com>,
	Takahiro Kuwano <Takahiro.Kuwano@infineon.com>,
	Cheng Ming Lin <chengminglin@mxic.com.tw>,
	linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-spi@vger.kernel.org
Cc: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
Subject: [PATCH RESEND v2 0/4] mtd: spinand: fix continuous reading mode support
Date: Thu, 14 Aug 2025 09:54:19 +0300	[thread overview]
Message-ID: <20250814065423.3980305-1-mikhail.kshevetskiy@iopsys.eu> (raw)

Continuous reading mode is broken for some spi controllers. This may lead
to errors during reading of more than one flash page at once. This patch
series improve continuous mode support and add a fallback to regular
reading method if continuous reading is not supported by spi controller.

Changes v2:
 * added helper to create reading dirmap descriptor
 * fix spelling
 * error code is not used for regular reading fallback anymore
 * it's possible (but very unlucky) that someone will do raw reading
   of the flash in continuous mode (i.e. without OOB), so fix dirmap
   creation for that case as well.

Mikhail Kshevetskiy (4):
  mtd: spinand: fix direct mapping creation sizes.
  mtd: spinand: try a regular dirmap if creating a dirmap for continuous
    reading fails
  mtd: spinand: repeat reading in regular mode if continuous reading
    fails
  spi: spi-airoha-snfi: return an error for continuous mode dirmap
    creation cases

 drivers/mtd/nand/spi/core.c   | 88 +++++++++++++++++++++++++++--------
 drivers/spi/spi-airoha-snfi.c |  4 ++
 2 files changed, 72 insertions(+), 20 deletions(-)

-- 
2.50.1


             reply	other threads:[~2025-08-14  6:54 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-14  6:54 Mikhail Kshevetskiy [this message]
2025-08-14  6:54 ` [PATCH RESEND v2 1/4] mtd: spinand: fix direct mapping creation sizes Mikhail Kshevetskiy
2025-08-14  6:54 ` [PATCH RESEND v2 2/4] mtd: spinand: try a regular dirmap if creating a dirmap for continuous reading fails Mikhail Kshevetskiy
2025-08-24 16:26   ` Miquel Raynal
2025-08-14  6:54 ` [PATCH RESEND v2 3/4] mtd: spinand: repeat reading in regular mode if " Mikhail Kshevetskiy
2025-08-24 16:24   ` Miquel Raynal
2025-08-14  6:54 ` [PATCH RESEND v2 4/4] spi: spi-airoha-snfi: return an error for continuous mode dirmap creation cases Mikhail Kshevetskiy
2025-08-14 15:29   ` Mark Brown
2025-08-14 15:33     ` Mikhail Kshevetskiy
2025-08-20  8:49       ` Frieder Schrempf
2025-08-20  9:49         ` Mikhail Kshevetskiy
2025-08-21  6:49         ` Lorenzo Bianconi
2025-08-24 15:50       ` Miquel Raynal
2025-08-20  8:49   ` Frieder Schrempf

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