linux-kernel - Re: Re: [PATCH v2 1/2] ASoC: dt-bindings: fsl_rpmsg: List DAPM endpoints ignoring system suspend

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ZRP2A1hvuB8ZymBK@finisterre.sirena.org.uk>
Date:   Wed, 27 Sep 2023 11:29:39 +0200
From:   Mark Brown <broonie@...nel.org>
To:     Chancel Liu <chancel.liu@....com>
Cc:     "lgirdwood@...il.com" <lgirdwood@...il.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "conor+dt@...nel.org" <conor+dt@...nel.org>,
        "shengjiu.wang@...il.com" <shengjiu.wang@...il.com>,
        "Xiubo.Lee@...il.com" <Xiubo.Lee@...il.com>,
        "festevam@...il.com" <festevam@...il.com>,
        "nicoleotsuka@...il.com" <nicoleotsuka@...il.com>,
        "perex@...ex.cz" <perex@...ex.cz>,
        "tiwai@...e.com" <tiwai@...e.com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: Re: [PATCH v2 1/2] ASoC: dt-bindings: fsl_rpmsg: List DAPM
 endpoints ignoring system suspend

On Wed, Sep 27, 2023 at 03:07:49AM +0000, Chancel Liu wrote:

> > This is a fairly standard DSP playback case as far as I can see so it
> > should work with DAPM without needing this obviously use case specific
> > stuff peering into the Linux implementation.  Generally this is done by
> > tagging endpoint widgets and DAIs as ignore_suspend, DAPM will then
> > figure out the rest of the widgets in the path.

> Yes, indeed I meant to let driver get DAPM endpoints from the "fsl,lpa-widgets"
> property and then set these endpoints as ignore_suspend if the sound card is
> running in this use case. Do you think the description for the use case can be
> simplified since it's a common use case?

This is a card problem - the driver for rpmsg shouldn't need to worry
about it.  Any bindings extensions should be at the card level rather
than in a specific driver, we could probably use something in the
generic properties that they're all using.

Download attachment "signature.asc" of type "application/pgp-signature" (489 bytes)