linux-kernel - Re: [PATCH v9 5/6] spi: mxic: Add support for swapping byte

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Message-ID: <ZvKktPc0luV9hItN@finisterre.sirena.org.uk>
Date: Tue, 24 Sep 2024 13:38:28 +0200
From: Mark Brown <broonie@...nel.org>
To: AlvinZhou <alvinzhou.tw@...il.com>
Cc: linux-mtd@...ts.infradead.org, linux-spi@...r.kernel.org,
	linux-kernel@...r.kernel.org, tudor.ambarus@...aro.org,
	pratyush@...nel.org, mwalle@...nel.org, miquel.raynal@...tlin.com,
	richard@....at, vigneshr@...com, chengminglin@...c.com.tw,
	leoyu@...c.com.tw, AlvinZhou <alvinzhou@...c.com.tw>,
	JaimeLiao <jaimeliao@...c.com.tw>
Subject: Re: [PATCH v9 5/6] spi: mxic: Add support for swapping byte

On Thu, Jul 18, 2024 at 11:46:13AM +0800, AlvinZhou wrote:
> From: AlvinZhou <alvinzhou@...c.com.tw>
> 
> Some SPI-NOR flash swap the bytes on a 16-bit boundary when
> configured in Octal DTR mode. It means data format D0 D1 D2 D3
> would be swapped to D1 D0 D3 D2. So that whether controller
> support swapping bytes should be checked before enable Octal
> DTR mode. Add swap byte support on a 16-bit boundary when
> configured in Octal DTR mode for Macronix xSPI host controller
> dirver.

driver

Acked-by: Mark Brown <broonie@...nel.org>

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