From: Rob Herring <robh@kernel.org>
To: Richard Fitzgerald <rf@opensource.cirrus.com>
Cc: Mark Brown <broonie@kernel.org>,
nsaenzjulienne@suse.de, patches@opensource.cirrus.com,
alsa-devel@alsa-project.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-rpi-kernel@lists.infradead.org
Subject: Re: [PATCH 0/7] Add dts for Rpi4 + Cirrus Lochnagar and codecs
Date: Mon, 19 Oct 2020 15:48:21 -0500 [thread overview]
Message-ID: <20201019204821.GA3569507@bogus> (raw)
In-Reply-To: <b3376cd4-010f-cf72-8c81-1f5d22cb6454@opensource.cirrus.com>
On Fri, Oct 16, 2020 at 02:30:08PM +0100, Richard Fitzgerald wrote:
> On 14/10/2020 19:56, Mark Brown wrote:
> > On Wed, Oct 14, 2020 at 03:54:11PM +0100, Richard Fitzgerald wrote:
> > > This set of patches provides support for using the Cirrus Logic
> > > Lochnagar audio development platform plus Cirrus Logic Madera/Arizona
> > > codecs with the simple-card machine driver and a Raspberry Pi4. The
> > > ultimate aim is to provide the dts file but some updates are needed to
> > > the simple-card machine driver.
> >
> > Why extend simple-card and not the more modern and flexible
> > audio-graph-card?
> >
>
> I'm struggling to understand how to use audio-graph-card where there are
> multiple alternative codecs. The host I2S endpoint has to point back to
> the codec endpoint, like this:
>
> cpu_i2s_ep_cs47l15: endpoint {
> remote-endpoint = <&cs47l15_aif1>;
> };
>
> But obviously that depends on which codec node was enabled. Listing
> multiple endpoints makes the whole port node disabled if any remote
> endpoint is in a disabled node. I've tried adding status="disabled"
> to endpoints or multiple port definitions with status="disabled" but
> I haven't figured out a solution.
Multiple endpoints is what you should do. And 'status' goes in the
device nodes (not the graph nodes).
Rob
prev parent reply other threads:[~2020-10-19 20:48 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-14 14:54 [PATCH 0/7] Add dts for Rpi4 + Cirrus Lochnagar and codecs Richard Fitzgerald
2020-10-14 14:54 ` [PATCH 1/7] of: base: Add of_count_phandle_with_fixed_args() Richard Fitzgerald
2020-10-14 18:39 ` Rob Herring
2020-10-15 16:52 ` Robin Murphy
2020-10-16 9:10 ` Richard Fitzgerald
2020-10-16 13:31 ` Rob Herring
2020-10-16 15:14 ` Richard Fitzgerald
2020-10-14 14:54 ` [PATCH 2/7] ASoC: simple-card: Add plls and sysclks DT schema Richard Fitzgerald
2020-10-14 14:54 ` [PATCH 3/7] ASoC: simple-card: Support setting component plls and sysclks Richard Fitzgerald
2020-10-14 14:54 ` [PATCH 4/7] ASoC: arizona: Allow codecs to be selected from kernel config Richard Fitzgerald
2020-10-15 0:19 ` kernel test robot
2020-10-14 14:54 ` [PATCH 5/7] ASoC: madera: " Richard Fitzgerald
2020-10-14 14:54 ` [PATCH 6/7] ARM: dts: Add dts for Raspberry Pi 4 + Cirrus Logic Lochnagar2 Richard Fitzgerald
2020-10-15 10:25 ` Nicolas Saenz Julienne
2020-10-15 11:14 ` Richard Fitzgerald
2020-10-15 15:12 ` Nicolas Saenz Julienne
2020-10-15 17:32 ` Mark Brown
2020-10-16 9:01 ` Richard Fitzgerald
2020-10-14 14:54 ` [PATCH 7/7] MAINTAINERS: Add dts for Cirrus Logic Lochnagar on RPi4 Richard Fitzgerald
2020-10-14 18:56 ` [PATCH 0/7] Add dts for Rpi4 + Cirrus Lochnagar and codecs Mark Brown
2020-10-16 13:30 ` Richard Fitzgerald
2020-10-16 15:18 ` Mark Brown
2020-10-19 20:48 ` Rob Herring [this message]
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