From: Mark Brown <broonie@kernel.org>
To: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>, Yogesh S <yogeshs@ti.com>,
Santhosh Kumar K <s-k6@ti.com>, Steam Lin <STLin2@winbond.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mtd@lists.infradead.org
Subject: Re: [PATCH 2/8] spi: spi-mem: Take into account the actual maximum frequency
Date: Wed, 18 Jun 2025 13:30:24 +0100 [thread overview]
Message-ID: <89c8da9d-8e4c-4e68-b306-5645154b4d60@sirena.org.uk> (raw)
In-Reply-To: <20250618-winbond-6-16-rc1-octal-phy-upstream-v1-2-513202126013@bootlin.com>
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On Wed, Jun 18, 2025 at 02:14:19PM +0200, Miquel Raynal wrote:
> In order to pick the best variant, the duration of each typical
> operation is derived and then compared. These durations are based on the
> maximum capabilities of the chips, which are commonly the limiting
> factors. However there are other possible limiting pieces, such as the
> hardware layout, EMC considerations and in some cases, the SPI controller
> itself.
Reviewed-by: Mark Brown <broonie@kernel.org>
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next prev parent reply other threads:[~2025-06-18 12:30 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-18 12:14 [PATCH 0/8] Enhance Winbond SPI NAND support Miquel Raynal
2025-06-18 12:14 ` [PATCH 1/8] spi: spi-mem: Use picoseconds for calculating the op durations Miquel Raynal
2025-06-18 12:24 ` Mark Brown
2025-06-18 12:14 ` [PATCH 2/8] spi: spi-mem: Take into account the actual maximum frequency Miquel Raynal
2025-06-18 12:30 ` Mark Brown [this message]
2025-06-18 12:14 ` [PATCH 3/8] mtd: spinand: Fix macro alignment Miquel Raynal
2025-06-18 12:14 ` [PATCH 4/8] mtd: spinand: Add a frequency field to all READ_FROM_CACHE variants Miquel Raynal
2025-06-18 12:14 ` [PATCH 5/8] mtd: spinand: Add a ->configure_chip() hook Miquel Raynal
2025-06-18 12:14 ` [PATCH 6/8] mtd: spinand: winbond: Enable high-speed modes on w25n0xjw Miquel Raynal
2025-06-18 12:14 ` [PATCH 7/8] mtd: spinand: winbond: Enable high-speed modes on w35n0xjw Miquel Raynal
2025-06-18 12:14 ` [PATCH 8/8] mtd: spinand: winbond: Add comment about the maximum frequency Miquel Raynal
2025-07-30 9:13 ` [PATCH 0/8] Enhance Winbond SPI NAND support Miquel Raynal
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