linux-kernel - Re: [PATCH v2 1/4] i2c: imx: only poll for bus busy in multi master mode

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Message-ID: <CAOMZO5Bdfe7fqJCCy9nqRG9jbOEKDNymMHp+--PaTygs5pZfFg@mail.gmail.com>
Date: Thu, 22 Aug 2024 09:59:39 -0300
From: Fabio Estevam <festevam@...il.com>
To: Stefan Eichenberger <eichest@...il.com>
Cc: o.rempel@...gutronix.de, kernel@...gutronix.de, andi.shyti@...nel.org, 
	shawnguo@...nel.org, s.hauer@...gutronix.de, Frank.Li@....com, 
	francesco.dolcini@...adex.com, linux-i2c@...r.kernel.org, imx@...ts.linux.dev, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	Stefan Eichenberger <stefan.eichenberger@...adex.com>
Subject: Re: [PATCH v2 1/4] i2c: imx: only poll for bus busy in multi master mode

Hi Stefan,

On Thu, Aug 22, 2024 at 8:50 AM Stefan Eichenberger <eichest@...il.com> wrote:

> In your setup, do you know what mode (atomic, interrupt, dma) the driver
> uses when it works and when it fails?

On the imx8mp board I am testing, the very first I2C register write
done by the pca935x driver fails.

Thanks