From: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Jean-Francois Moine <moinejf-GANU6spQydw@public.gmane.org>
Cc: Andrew Lunn <andrew-g2DYL2Zd6BY@public.gmane.org>,
Russell King - ARM Linux
<linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org,
lgirdwood-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Rob Clark <robdclark-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Dave Airlie <airlied-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH] ASoC: tda998x: add a codec to the HDMI transmitter
Date: Thu, 3 Jul 2014 12:59:24 +0100 [thread overview]
Message-ID: <20140703115924.GY410@sirena.org.uk> (raw)
In-Reply-To: <20140703133406.2d3e3a1d@armhf>
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On Thu, Jul 03, 2014 at 01:34:06PM +0200, Jean-Francois Moine wrote:
> Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> wrote:
> > 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.
> If there are two different streamss on I2S and S/PDIF, and if the audio
> subsystem wants to route these streams to the same connector (widget
> 'hdmi-out'), then, somewhere, there should be a software or a design
> bug. No?
Yes, which is why the driver shouldn't silently ignore the situation.
> Anyway, the tda998x cannot know if the double route is wanted or not.
It doesn't need to know, it just needs to identify something it can't
support either by providing a way to pick which interface is used or by
rejecting the second interface.
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WARNING: multiple messages have this Message-ID (diff)
From: broonie@kernel.org (Mark Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ASoC: tda998x: add a codec to the HDMI transmitter
Date: Thu, 3 Jul 2014 12:59:24 +0100 [thread overview]
Message-ID: <20140703115924.GY410@sirena.org.uk> (raw)
In-Reply-To: <20140703133406.2d3e3a1d@armhf>
On Thu, Jul 03, 2014 at 01:34:06PM +0200, Jean-Francois Moine wrote:
> Mark Brown <broonie@kernel.org> wrote:
> > 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.
> If there are two different streamss on I2S and S/PDIF, and if the audio
> subsystem wants to route these streams to the same connector (widget
> 'hdmi-out'), then, somewhere, there should be a software or a design
> bug. No?
Yes, which is why the driver shouldn't silently ignore the situation.
> Anyway, the tda998x cannot know if the double route is wanted or not.
It doesn't need to know, it just needs to identify something it can't
support either by providing a way to pick which interface is used or by
rejecting the second interface.
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WARNING: multiple messages have this Message-ID (diff)
From: Mark Brown <broonie@kernel.org>
To: Jean-Francois Moine <moinejf@free.fr>
Cc: Andrew Lunn <andrew@lunn.ch>,
Russell King - ARM Linux <linux@arm.linux.org.uk>,
devicetree@vger.kernel.org, alsa-devel@alsa-project.org,
lgirdwood@gmail.com, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org, Rob Clark <robdclark@gmail.com>,
Dave Airlie <airlied@gmail.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] ASoC: tda998x: add a codec to the HDMI transmitter
Date: Thu, 3 Jul 2014 12:59:24 +0100 [thread overview]
Message-ID: <20140703115924.GY410@sirena.org.uk> (raw)
In-Reply-To: <20140703133406.2d3e3a1d@armhf>
[-- Attachment #1: Type: text/plain, Size: 889 bytes --]
On Thu, Jul 03, 2014 at 01:34:06PM +0200, Jean-Francois Moine wrote:
> Mark Brown <broonie@kernel.org> wrote:
> > 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.
> If there are two different streamss on I2S and S/PDIF, and if the audio
> subsystem wants to route these streams to the same connector (widget
> 'hdmi-out'), then, somewhere, there should be a software or a design
> bug. No?
Yes, which is why the driver shouldn't silently ignore the situation.
> Anyway, the tda998x cannot know if the double route is wanted or not.
It doesn't need to know, it just needs to identify something it can't
support either by providing a way to pick which interface is used or by
rejecting the second interface.
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next prev parent reply other threads:[~2014-07-03 11:59 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-02 16:38 [PATCH] ASoC: tda998x: add a codec to the HDMI transmitter Jean-Francois Moine
2014-07-02 16:38 ` Jean-Francois Moine
2014-07-02 16:38 ` Jean-Francois Moine
2014-07-02 16:56 ` Andrew Lunn
2014-07-02 16:56 ` Andrew Lunn
2014-07-02 17:51 ` Jean-Francois Moine
2014-07-02 17:51 ` Jean-Francois Moine
2014-07-02 17:51 ` Jean-Francois Moine
2014-07-02 18:02 ` Russell King - ARM Linux
2014-07-02 18:02 ` Russell King - ARM Linux
2014-07-02 18:02 ` Russell King - ARM Linux
2014-07-02 19:37 ` Mark Brown
2014-07-02 19:37 ` Mark Brown
2014-07-02 19:42 ` Mark Brown
2014-07-02 19:42 ` Mark Brown
2014-07-03 5:49 ` Jean-Francois Moine
2014-07-03 5:49 ` Jean-Francois Moine
2014-07-03 5:49 ` Jean-Francois Moine
2014-07-03 10:44 ` Mark Brown
2014-07-03 10:44 ` Mark Brown
2014-07-03 10:44 ` Mark Brown
2014-07-03 11:34 ` Jean-Francois Moine
2014-07-03 11:34 ` Jean-Francois Moine
2014-07-03 11:34 ` Jean-Francois Moine
2014-07-03 11:59 ` Mark Brown [this message]
2014-07-03 11:59 ` Mark Brown
2014-07-03 11:59 ` Mark Brown
2014-07-03 13:28 ` Jean-Francois Moine
2014-07-03 13:28 ` Jean-Francois Moine
2014-07-03 13:28 ` Jean-Francois Moine
2014-07-03 13:43 ` Russell King - ARM Linux
2014-07-03 13:43 ` Russell King - ARM Linux
2014-07-03 13:43 ` Russell King - ARM Linux
[not found] ` <20140703134346.GW32514-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2014-07-03 15:29 ` Jean-Francois Moine
2014-07-03 15:29 ` Jean-Francois Moine
2014-07-03 15:29 ` Jean-Francois Moine
2014-07-03 15:43 ` Russell King - ARM Linux
2014-07-03 15:43 ` Russell King - ARM Linux
2014-07-03 15:43 ` Russell King - ARM Linux
2014-07-03 16:26 ` Jean-Francois Moine
2014-07-03 16:26 ` Jean-Francois Moine
2014-07-03 16:26 ` Jean-Francois Moine
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