linux-kernel - Re: [PATCH] ASoC: tda998x: add a codec to the HDMI transmitter

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: <20140703104432.GV410@sirena.org.uk>
Date:	Thu, 3 Jul 2014 11:44:32 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Jean-Francois Moine <moinejf@...e.fr>
Cc:	Andrew Lunn <andrew@...n.ch>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	devicetree@...r.kernel.org, alsa-devel@...a-project.org,
	lgirdwood@...il.com, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org, Rob Clark <robdclark@...il.com>,
	Dave Airlie <airlied@...il.com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] ASoC: tda998x: add a codec to the HDMI transmitter

On Thu, Jul 03, 2014 at 07:49:59AM +0200, Jean-Francois Moine wrote:
> Mark Brown <broonie@...nel.org> wrote:

> > I'd expect this to return an error for the busy DAI rather than just
> > silently ignore it failing to start or (better) implement some control
> > to let the user select which of the DAIs is active.

> This is not an error. If the audio subsystem (DPCM, not the user)
> chooses to activate both I2S and S/PDIF, this means the HDMI audio may
> be taken either from I2S or from S/PDIF: both inputs have the right
> format and rate.

Your board happens to only be able to present the same input on both I2S
and S/PDIF but that might not apply to other boards, they may be able to
route different signals to each which would present a practical problem.

Download attachment "signature.asc" of type "application/pgp-signature" (820 bytes)