From: Sameer Pujar <spujar@nvidia.com>
To: Mark Brown <broonie@kernel.org>
Cc: jonathanh@nvidia.com, nicoleotsuka@gmail.com,
alsa-devel@alsa-project.org, atalambedu@nvidia.com,
swarren@nvidia.com,
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
linux-kernel@vger.kernel.org, spujar@nvidia.com,
nwartikar@nvidia.com, lgirdwood@gmail.com, tiwai@suse.com,
viswanathl@nvidia.com, sharadg@nvidia.com, robh+dt@kernel.org,
thierry.reding@gmail.com, linux-tegra@vger.kernel.org,
digetx@gmail.com, rlokhande@nvidia.com, mkumard@nvidia.com,
dramesh@nvidia.com
Subject: Re: Re: [PATCH v4 12/23] ASoC: simple-card: Support DPCM DAI link with multiple Codecs
Date: Tue, 30 Jun 2020 18:23:49 +0530 [thread overview]
Message-ID: <81d106c0-e1c8-a79a-8caf-1f3be0d61f0c@nvidia.com> (raw)
In-Reply-To: <20200630110100.GH5272@sirena.org.uk>
On 6/30/2020 4:31 PM, Mark Brown wrote:
> On Tue, Jun 30, 2020 at 01:22:29PM +0530, Sameer Pujar wrote:
>
>> Yes there are complex use cases, but if we look at the amount of changes
>> required in simple-card driver that is not too much. Existing binding for
>> simple-card driver would still work fine for our cases. Yes there are some
>> deviations and we don't want to break existing users, that is why a *new*
>> compatible was introduced and specific items can be pushed under it.
>> Majority of the simple-card driver is getting re-used here. We just need to
>> make sure it does not affect anyone else.
> Why simple-card and not audio-graph-card?
Frankly speaking I have not used audio-graph-card before. I had a brief
look at the related binding. It seems it can use similar DT properties
that simple-card uses, although the binding style appears to be
different. However I am not sure if it offers better solutions to the
problems I am facing. For example, the ability to connect or form a
chain of components to realize more complicated use cases with DPCM,
some of which were discussed in [0]. Can you please help me understand
why it could be preferred?
[0] https://lkml.org/lkml/2020/4/30/519
>>> Using fe/be instead of cpu/codec is easy to understand.
>> I guess you are referring to DT binding part. The parsing code specifically
>> looks for "codec" sub node and thus present conventions had to be used.
> Remember that this stuff gets fixed into the ABI so we'd have to live
> with this for ever.
next prev parent reply other threads:[~2020-06-30 12:55 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-27 4:53 [PATCH v4 00/23] Add support for Tegra210 Audio Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 01/23] ASoC: dt-bindings: tegra: Add DT bindings for Tegra210 Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 02/23] ASoC: tegra: Add support for CIF programming Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 03/23] ASoC: tegra: Add Tegra210 based DMIC driver Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 04/23] ASoC: tegra: Add Tegra210 based I2S driver Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 05/23] ASoC: tegra: Add Tegra210 based AHUB driver Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 06/23] ASoC: tegra: Add Tegra186 based DSPK driver Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 07/23] ASoC: tegra: Add Tegra210 based ADMAIF driver Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 08/23] ASoC: soc-core: Fix component name_prefix parsing Sameer Pujar
2020-06-29 0:38 ` Kuninori Morimoto
2020-06-29 15:46 ` Sameer Pujar
2020-06-30 10:45 ` Mark Brown
2020-06-30 12:56 ` Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 09/23] ASoC: simple-card: Use of_node and DAI names for DAI link names Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 10/23] ASoC: simple-card: Wrong daifmt for CPU end of DPCM DAI link Sameer Pujar
2020-06-29 0:56 ` Kuninori Morimoto
2020-06-29 16:06 ` Sameer Pujar
2020-06-30 0:56 ` Kuninori Morimoto
2020-06-30 3:47 ` Sameer Pujar
2020-06-30 5:07 ` Kuninori Morimoto
2020-06-27 4:53 ` [PATCH v4 11/23] ASoC: simple-card: Loop over all children for 'mclk-fs' Sameer Pujar
2020-06-29 1:05 ` Kuninori Morimoto
2020-06-29 16:32 ` Sameer Pujar
2020-06-30 2:08 ` Kuninori Morimoto
2020-06-30 4:23 ` Sameer Pujar
2020-06-30 10:55 ` Mark Brown
2020-06-30 11:56 ` Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 12/23] ASoC: simple-card: Support DPCM DAI link with multiple Codecs Sameer Pujar
2020-06-29 1:24 ` Kuninori Morimoto
2020-06-29 17:16 ` Sameer Pujar
2020-06-30 1:24 ` Kuninori Morimoto
2020-06-30 4:08 ` Sameer Pujar
2020-06-30 6:55 ` Kuninori Morimoto
2020-06-30 7:52 ` Sameer Pujar
2020-06-30 11:01 ` Mark Brown
2020-06-30 12:53 ` Sameer Pujar [this message]
2020-06-30 15:32 ` Mark Brown
2020-07-02 10:36 ` Sameer Pujar
2020-07-02 12:26 ` Mark Brown
2020-07-17 12:55 ` Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 13/23] ASoC: simple-card: DPCM DAI link direction as per DAI capability Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 14/23] ASoC: soc-core: Probe auxiliary component before others Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 15/23] ASoC: soc-core: Identify 'no_pcm' DAI links for DPCM Sameer Pujar
2020-06-29 1:38 ` Kuninori Morimoto
2020-06-29 17:19 ` Sameer Pujar
2020-06-30 6:07 ` Kuninori Morimoto
2020-06-30 8:03 ` Sameer Pujar
2020-07-02 0:52 ` Kuninori Morimoto
2020-07-02 3:48 ` Sameer Pujar
2020-07-02 8:50 ` Kuninori Morimoto
2020-07-02 9:56 ` Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 16/23] ASoC: soc-pcm: Get all BEs along DAPM path Sameer Pujar
2020-06-29 1:41 ` Kuninori Morimoto
2020-06-29 17:29 ` Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 17/23] ASoC: dt-bindings: simple-card: Add compatible for component chaining Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 18/23] ASoC: simple-card: Add support " Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 19/23] arm64: defconfig: Build AHUB component drivers Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 20/23] arm64: defconfig: Enable CONFIG_TEGRA210_ADMA Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 21/23] arm64: tegra: Add DT binding for AHUB components Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 22/23] arm64: tegra: Enable AHUB components on few Tegra platforms Sameer Pujar
2020-06-27 4:53 ` [PATCH v4 23/23] arm64: tegra: Add support for APE sound card on Jetson Nano and TX1 Sameer Pujar
2020-06-30 10:51 ` [PATCH v4 00/23] Add support for Tegra210 Audio Mark Brown
2020-06-30 11:54 ` Sameer Pujar
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