linux-kernel - Re: [PATCH v3 5/9] firmware: arm_scmi: Make use of FastChannels configurable

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Message-ID: <20220701145508.xw3zbhldi7lvcwgd@bogus>
Date:   Fri, 1 Jul 2022 15:55:08 +0100
From:   Sudeep Holla <sudeep.holla@....com>
To:     Cristian Marussi <cristian.marussi@....com>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        james.quinlan@...adcom.com, Jonathan.Cameron@...wei.com,
        f.fainelli@...il.com, etienne.carriere@...aro.org,
        vincent.guittot@...aro.org, daniel.lezcano@...aro.org,
        tarek.el-sherbiny@....com, adrian.slatineanu@....com,
        souvik.chakravarty@....com, wleavitt@...vell.com,
        wbartczak@...vell.com
Subject: Re: [PATCH v3 5/9] firmware: arm_scmi: Make use of FastChannels
 configurable

On Fri, Jul 01, 2022 at 03:47:20PM +0100, Cristian Marussi wrote:

[...]

> ... regarding why, I am using personally this indeed for testing with or
> without FCs without having to change the installed FW blob, BUT the reason
> for upstreaming such an option is that FC support is indeed optional by the
> spec so I thought it would have been acceptabel that you could want to
> configure a platform NOT to use them even though the FW implementation you
> are using, maybe across multiple platforms, supports it.

Yes it is optional. But we use only if F/W advertises that it is available,
so no harm if it is not implemented right ? I don't believe it will save
space in the way config is used and I don't want to push all the code
under the config too.

-- 
Regards,
Sudeep