linux-kernel - Re: [PATCH 10/16] spi: bcm63xx-hsspi: Make dummy cs workaround as an option

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Message-ID: <Y8lA8Fn+MtBZ2eos@sirena.org.uk>
Date:   Thu, 19 Jan 2023 13:09:04 +0000
From:   Mark Brown <broonie@...nel.org>
To:     William Zhang <william.zhang@...adcom.com>
Cc:     Linux SPI List <linux-spi@...r.kernel.org>,
        Broadcom Kernel List <bcm-kernel-feedback-list@...adcom.com>,
        anand.gore@...adcom.com, tomer.yacoby@...adcom.com,
        dan.beygelman@...adcom.com, joel.peshkin@...adcom.com,
        f.fainelli@...il.com, jonas.gorski@...il.com,
        kursad.oney@...adcom.com, dregan@...l.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 10/16] spi: bcm63xx-hsspi: Make dummy cs workaround as an
 option

On Wed, Jan 18, 2023 at 03:09:39PM -0800, William Zhang wrote:

> So my preferred choice is to use prepend mode as default. In the unlikely
> event that SPI transfers can not be merged for prepend mode, we switch to
> dummy cs workaround mode and force the transfer to run at 25MHz. This make
> sure everything works under the hood automatically and no dts setting is
> required. I can add sysfs knobs to override this behavior and force to use
> either mode just in case. Does this sounds good to you?

I think so.

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