linux-kernel - Re: [PATCH] regmap: Account for register length when chunking

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Message-ID: <ZGJI2zU/bxDPxLAh@finisterre.sirena.org.uk>
Date:   Mon, 15 May 2023 23:59:39 +0900
From:   Mark Brown <broonie@...nel.org>
To:     Jim Wylder <jwylder@...gle.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] regmap: Account for register length when chunking

On Mon, May 15, 2023 at 09:39:26AM -0500, Jim Wylder wrote:

> To avoid this problem, add a flag in the regmap_bus structure to declare
> that, for a given bus, the register length should be accounted for.  Set
> the flag to true for I2C buses, and subtract the length of the register
> from the maximum transmission value if the flag is set.

This will be needed for any bus with a format operation so we should
just check for that and it should also take account of any pad bytes.

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