From: Etienne Carriere <etienne.carriere@linaro.org>
To: Sudeep Holla <sudeep.holla@arm.com>
Cc: linux-kernel@vger.kernel.org,
"moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH] firmware: arm_scmi: fix SMCCC_RET_NOT_SUPPORTED management
Date: Fri, 15 May 2020 11:57:19 +0200 [thread overview]
Message-ID: <CAN5uoS9Ar5MZRufsf-x=xjm29VfpYAB2T-L=T-Q+-zPiJoKqQw@mail.gmail.com> (raw)
In-Reply-To: <20200515093424.GC23671@bogus>
> > Or consider part of the SCMI-SMC transport API that output arg a0
> > shall be 0 on success, SMCCC_RET_NOT_SUPPORTED if function ID is not
> > supported and any non-zero value for non-generic **error** codes.
> >
>
> I prefer that. Anyways I will check and if anything changes I will ping
> back on this thread.
I don't have a strong opinion on whether considering or not 0 as
success, for whatever the function ID used here for SCMI message
notification.
We can assume at least 0 is default returned in a0 when the function
ID is used in SCMI SMC transport.
Thanks for the feedback.
> --
> Regards,
> Sudeep
prev parent reply other threads:[~2020-05-15 9:57 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-14 8:24 [PATCH] firmware: arm_scmi: fix SMCCC_RET_NOT_SUPPORTED management Etienne Carriere
2020-05-14 14:29 ` Sudeep Holla
2020-05-14 15:06 ` Etienne Carriere
2020-05-15 9:34 ` Sudeep Holla
2020-05-15 9:57 ` Etienne Carriere [this message]
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