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

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Message-ID: <a87a159e-eff1-45c3-bf26-115d4ca5a9be@linaro.org>
Date: Tue, 24 Sep 2024 15:29:37 +0100
From: Tudor Ambarus <tudor.ambarus@...aro.org>
To: Mark Brown <broonie@...nel.org>, AlvinZhou <alvinzhou.tw@...il.com>
Cc: linux-mtd@...ts.infradead.org, linux-spi@...r.kernel.org,
 linux-kernel@...r.kernel.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

Hi, Mark,

On 9/24/24 12:38 PM, Mark Brown wrote:
> 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

I can amend that.

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

I'm fine with the SPI bits as well. Shall I take the SPI/SPIMEM patches
through mtd and provide you an immutable tag? I can do that after -rc1
is out.

Or you can take them directly through spi/, but I'll need an immutable tag.

Thanks,
ta