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From: Fabio Estevam <festevam@gmail.com>
To: Shengjiu Wang <shengjiu.wang@gmail.com>
Cc: Rob Herring <robh@kernel.org>,
	Shengjiu Wang <shengjiu.wang@nxp.com>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
	<devicetree@vger.kernel.org>,
	Linux-ALSA <alsa-devel@alsa-project.org>,
	Timur Tabi <timur@kernel.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	linuxppc-dev@lists.ozlabs.org, Xiubo Li <Xiubo.Lee@gmail.com>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Takashi Iwai <tiwai@suse.com>,
	Nicolin Chen <nicoleotsuka@gmail.com>,
	Mark Brown <broonie@kernel.org>
Subject: Re: [PATCH v2 3/7] ASoC: dt-bindings: fsl_rpmsg: Add binding doc for rpmsg cpu dai driver
Date: Thu, 25 Feb 2021 00:10:38 -0300	[thread overview]
Message-ID: <CAOMZO5D3HgVF6Gq6sFo7j7OJ63NVN--ZtmwZCoM7=dmmhVZchQ@mail.gmail.com> (raw)
In-Reply-To: <CAA+D8APfd8trC8cFsT8k8G54nhrYDrwXxECx9RpDAgw3rco9DQ@mail.gmail.com>

On Thu, Feb 18, 2021 at 4:21 AM Shengjiu Wang <shengjiu.wang@gmail.com> wrote:

> > rpmsg is a protocol. What's the h/w block?
>
> On Linux side this driver is a virtual driver, it is running
> on Arm Cortex-A core. The h/w block is controlled by
> another core (cortex-M core). so this driver actually
> doesn't touch any hardware, it just does configuration
> for rpmsg channel.
> fsl,version: There are maybe different image running on M core, this
> is the image version, different image has different function.

To answer Rob's question: the hardware block that handles these
messages is the Message Unit block.

WARNING: multiple messages have this Message-ID (diff)
From: Fabio Estevam <festevam@gmail.com>
To: Shengjiu Wang <shengjiu.wang@gmail.com>
Cc: Rob Herring <robh@kernel.org>,
	Linux-ALSA <alsa-devel@alsa-project.org>,
	Timur Tabi <timur@kernel.org>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@vger.kernel.org>,
	Shengjiu Wang <shengjiu.wang@nxp.com>,
	Xiubo Li <Xiubo.Lee@gmail.com>,
	Liam Girdwood <lgirdwood@gmail.com>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Nicolin Chen <nicoleotsuka@gmail.com>,
	Mark Brown <broonie@kernel.org>, Takashi Iwai <tiwai@suse.com>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v2 3/7] ASoC: dt-bindings: fsl_rpmsg: Add binding doc for rpmsg cpu dai driver
Date: Thu, 25 Feb 2021 00:10:38 -0300	[thread overview]
Message-ID: <CAOMZO5D3HgVF6Gq6sFo7j7OJ63NVN--ZtmwZCoM7=dmmhVZchQ@mail.gmail.com> (raw)
In-Reply-To: <CAA+D8APfd8trC8cFsT8k8G54nhrYDrwXxECx9RpDAgw3rco9DQ@mail.gmail.com>

On Thu, Feb 18, 2021 at 4:21 AM Shengjiu Wang <shengjiu.wang@gmail.com> wrote:

> > rpmsg is a protocol. What's the h/w block?
>
> On Linux side this driver is a virtual driver, it is running
> on Arm Cortex-A core. The h/w block is controlled by
> another core (cortex-M core). so this driver actually
> doesn't touch any hardware, it just does configuration
> for rpmsg channel.
> fsl,version: There are maybe different image running on M core, this
> is the image version, different image has different function.

To answer Rob's question: the hardware block that handles these
messages is the Message Unit block.

  reply	other threads:[~2021-02-25  3:11 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-07 10:23 [PATCH v2 0/7] Add audio driver base on rpmsg on i.MX platform Shengjiu Wang
2021-02-07 10:23 ` [PATCH v2 1/7] ASoC: soc-component: Add snd_soc_pcm_component_ack Shengjiu Wang
2021-02-07 10:23 ` [PATCH v2 2/7] ASoC: fsl_rpmsg: Add CPU DAI driver for audio base on rpmsg Shengjiu Wang
2021-02-08 11:51   ` Mark Brown
2021-02-08 11:51     ` Mark Brown
2021-02-08 11:51     ` Mark Brown
2021-02-09  9:16     ` Shengjiu Wang
2021-02-09  9:16       ` Shengjiu Wang
2021-02-09 22:29       ` Mark Brown
2021-02-09 22:29         ` Mark Brown
2021-02-10  6:35         ` Shengjiu Wang
2021-02-10  6:35           ` Shengjiu Wang
2021-02-10 15:38           ` Mark Brown
2021-02-10 15:38             ` Mark Brown
2021-02-18  7:57             ` Shengjiu Wang
2021-02-18  7:57               ` Shengjiu Wang
2021-02-22 13:46               ` Mark Brown
2021-02-22 13:46                 ` Mark Brown
2021-02-07 10:23 ` [PATCH v2 3/7] ASoC: dt-bindings: fsl_rpmsg: Add binding doc for rpmsg cpu dai driver Shengjiu Wang
2021-02-10 22:12   ` Rob Herring
2021-02-10 22:12     ` Rob Herring
2021-02-10 22:12     ` Rob Herring
2021-02-18  7:21     ` Shengjiu Wang
2021-02-18  7:21       ` Shengjiu Wang
2021-02-25  3:10       ` Fabio Estevam [this message]
2021-02-25  3:10         ` Fabio Estevam
2021-02-07 10:23 ` [PATCH v2 4/7] ASoC: imx-audio-rpmsg: Add rpmsg_driver for audio channel Shengjiu Wang
2021-02-07 10:23 ` [PATCH v2 5/7] ASoC: imx-pcm-rpmsg: Add platform driver for audio base on rpmsg Shengjiu Wang
2021-02-07 10:23 ` [PATCH v2 6/7] ASoC: imx-rpmsg: Add machine " Shengjiu Wang
2021-02-07 10:23 ` [PATCH v2 7/7] ASoC: dt-bindings: imx-rpmsg: Add binding doc for rpmsg machine driver Shengjiu Wang
2021-02-10 22:17   ` Rob Herring
2021-02-10 22:17     ` Rob Herring
2021-02-10 22:17     ` Rob Herring
2021-02-18  7:23     ` Shengjiu Wang
2021-02-18  7:23       ` Shengjiu Wang
2021-03-04 20:04       ` Rob Herring
2021-03-04 20:04         ` Rob Herring
2021-03-05  2:55         ` Shengjiu Wang
2021-03-05  2:55           ` Shengjiu Wang

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