From: Mark Brown <broonie@kernel.org>
To: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: "Nuno Sá" <nuno.sa@analog.com>, "Fei Xie" <fei.xie@horizon.auto>,
"Richard Weinberger" <richard@nod.at>,
"Vignesh Raghavendra" <vigneshr@ti.com>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Parshuram Thombare" <pthombar@cadence.com>,
linux-spi@vger.kernel.org, linux-mtd@lists.infradead.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 2/4] spi: cadence-xspi: add ACMD support for SPI NAND
Date: Fri, 25 Sep 2026 12:59:49 +0100 [thread overview]
Message-ID: <85dc596e-4378-4d23-b48e-80053cb5166d@sirena.org.uk> (raw)
In-Reply-To: <87ecehljdy.fsf@bootlin.com>
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On Fri, Sep 25, 2026 at 12:23:21PM +0200, Miquel Raynal wrote:
> > As for PROGRAM and ERASE commands I really did not saw any added
> > value.
> Yes, most of the time is spent in the wait_ready, which is not getting
> faster with hardware automation.
It might potentially help a heavily loaded system if you can do fewer
waits, the rest of the tasks running on the system will have more time
if we're doing fewer waits for interrupts. Not sure it'd be enough to
write home about though.
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next prev parent reply other threads:[~2026-09-25 11:59 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-21 9:36 [RFC PATCH 0/4] spi: cadence-xspi: add ACMD PIO support for NAND and NOR Fei Xie
2026-09-21 9:36 ` [RFC PATCH 1/4] dt-bindings: spi: cdns,xspi: add SPI NAND compatible Fei Xie
2026-09-21 14:01 ` Mark Brown
2026-09-23 12:54 ` Krzysztof Kozlowski
2026-09-21 9:36 ` [RFC PATCH 2/4] spi: cadence-xspi: add ACMD support for SPI NAND Fei Xie
2026-09-21 14:51 ` Mark Brown
2026-09-23 6:12 ` Fei Xie
2026-09-24 18:55 ` Mark Brown
2026-09-25 9:45 ` Miquel Raynal
2026-09-25 10:14 ` Nuno Sá
2026-09-25 10:23 ` Miquel Raynal
2026-09-25 11:31 ` Nuno Sá
2026-09-25 11:59 ` Mark Brown [this message]
2026-09-25 12:59 ` Miquel Raynal
2026-09-25 16:38 ` Mark Brown
2026-09-23 12:37 ` Nuno Sá
2026-09-21 9:37 ` [RFC PATCH 3/4] spi: cadence-xspi: factor out reusable ACMD helpers Fei Xie
2026-09-21 9:37 ` [RFC PATCH 4/4] spi: cadence-xspi: add ACMD support for SPI NOR Fei Xie
2026-09-23 12:24 ` [RFC PATCH 0/4] spi: cadence-xspi: add ACMD PIO support for NAND and NOR Nuno Sá
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