linux-kernel - Re: [PATCH v2] spi: spi-imx: fix off-by-one in mx51 CPU mode burst length

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Message-ID: <98914a36-e5dc-4f44-bf3e-c237d803a7e8@sirena.org.uk>
Date: Mon, 18 Mar 2024 15:55:01 +0000
From: Mark Brown <broonie@...nel.org>
To: Adam Butcher <adam@...samine.co.uk>
Cc: benjamin@...ler.one, carlos.song@....com, s.hauer@...gutronix.de,
	shawnguo@...nel.org, stefanmoring@...il.com, kernel@...gutronix.de,
	linux-imx@....com, linux-kernel@...r.kernel.org,
	linux-spi@...r.kernel.org
Subject: Re: [PATCH v2] spi: spi-imx: fix off-by-one in mx51 CPU mode burst
 length

On Wed, Mar 13, 2024 at 08:58:19PM +0000, Adam Butcher wrote:
> From: Adam Butcher <adam@...samine.co.uk>
> 
> 992e1211dc91 ("spi: imx: fix the burst length at DMA mode and CPU mode")
> corrects three cases of setting the ECSPI burst length but erroneously
> leaves the in-range CPU case one bit to big (in that field a value of
> 0 means 1 bit).  The effect was that transmissions that should have been
> 8-bit bytes appeared as 9-bit causing failed communication with SPI
> devices.

This doesn't apply against current code, please check and resend.

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