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Mon, 29 Aug 2022 07:55:58 +0000 From: Chancel Liu To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, devicetree@vger.kernel.org, krzysztof.kozlowski+dt@linaro.org, shengjiu.wang@nxp.com, Xiubo.Lee@gmail.com, festevam@gmail.com, nicoleotsuka@gmail.com, linuxppc-dev@lists.ozlabs.org Subject: [PATCH 1/5] ASoC: dt-bindings: fsl_rpmsg: Add a property to assign platform driver name Date: Mon, 29 Aug 2022 15:51:40 +0800 Message-Id: <20220829075144.2405000-2-chancel.liu@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220829075144.2405000-1-chancel.liu@nxp.com> References: <20220829075144.2405000-1-chancel.liu@nxp.com> X-ClientProxiedBy: SI2PR06CA0012.apcprd06.prod.outlook.com (2603:1096:4:186::13) To VI1PR04MB4222.eurprd04.prod.outlook.com (2603:10a6:803:46::19) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 720768d7-02f5-4f6e-f135-08da8993e852 X-MS-TrafficTypeDiagnostic: PR3PR04MB7482:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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It also represents the rpmsg channel this sound card sits on. This property can be omitted if there is only one sound card and it sits on "rpmsg-audio-channel". Signed-off-by: Chancel Liu --- .../devicetree/bindings/sound/fsl,rpmsg.yaml | 34 +++++++++++++++++-- 1 file changed, 32 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml b/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml index d370c98a62c7..35e3cb9f768b 100644 --- a/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml +++ b/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml @@ -11,8 +11,11 @@ maintainers: description: | fsl_rpmsg is a virtual audio device. Mapping to real hardware devices - are SAI, DMA controlled by Cortex M core. What we see from Linux - side is a device which provides audio service by rpmsg channel. + are SAI, MICFIL, DMA controlled by Cortex M core. What we see from + Linux side is a device which provides audio service by rpmsg channel. + We can create different sound cards which access different hardwares + such as SAI, MICFIL, .etc through building rpmsg channels between + Cortex-A and Cortex-M. properties: compatible: @@ -85,6 +88,14 @@ properties: This is a boolean property. If present, the receiving function will be enabled. + fsl,platform: + $ref: /schemas/types.yaml#/definitions/string + description: | + A string property to assign ASoC platform driver name. It also + represents the rpmsg channel this sound card sits on. This property + can be omitted if there is only one sound card and it sits on + "rpmsg-audio-channel". + required: - compatible - model @@ -107,3 +118,22 @@ examples: <&clk IMX8MN_AUDIO_PLL2_OUT>; clock-names = "ipg", "mclk", "dma", "pll8k", "pll11k"; }; + + - | + #include + + rpmsg_micfil: rpmsg_micfil { + compatible = "fsl,imx8mm-rpmsg-audio"; + model = "micfil-audio"; + fsl,platform = "rpmsg-micfil-channel"; + fsl,enable-lpa; + fsl,rpmsg-in; + clocks = <&clk IMX8MM_CLK_PDM_IPG>, + <&clk IMX8MM_CLK_PDM_ROOT>, + <&clk IMX8MM_CLK_SDMA3_ROOT>, + <&clk IMX8MM_AUDIO_PLL1_OUT>, + <&clk IMX8MM_AUDIO_PLL2_OUT>; + clock-names = "ipg", "mclk", "dma", "pll8k", "pll11k"; + }; + +... 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Mon, 29 Aug 2022 07:56:03 +0000 From: Chancel Liu To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, devicetree@vger.kernel.org, krzysztof.kozlowski+dt@linaro.org, shengjiu.wang@nxp.com, Xiubo.Lee@gmail.com, festevam@gmail.com, nicoleotsuka@gmail.com, linuxppc-dev@lists.ozlabs.org Subject: [PATCH 2/5] ASoC: imx-audio-rpmsg: Create rpmsg channel for MICFIL Date: Mon, 29 Aug 2022 15:51:41 +0800 Message-Id: <20220829075144.2405000-3-chancel.liu@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220829075144.2405000-1-chancel.liu@nxp.com> References: <20220829075144.2405000-1-chancel.liu@nxp.com> X-ClientProxiedBy: SI2PR06CA0012.apcprd06.prod.outlook.com (2603:1096:4:186::13) To VI1PR04MB4222.eurprd04.prod.outlook.com (2603:10a6:803:46::19) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: fed046c7-358d-4158-85fd-08da8993eb3f X-MS-TrafficTypeDiagnostic: DB7PR04MB4220:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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If this driver is probed, Cortex-A can access MICFIL which is actually controlled by Cortex-M through rpmsg channel for MICFIL. Signed-off-by: Chancel Liu --- sound/soc/fsl/imx-audio-rpmsg.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/soc/fsl/imx-audio-rpmsg.c b/sound/soc/fsl/imx-audio-rpmsg.c index 905c3a071300..d5234ac4b09b 100644 --- a/sound/soc/fsl/imx-audio-rpmsg.c +++ b/sound/soc/fsl/imx-audio-rpmsg.c @@ -88,7 +88,7 @@ static int imx_audio_rpmsg_probe(struct rpmsg_device *rpdev) /* Register platform driver for rpmsg routine */ data->rpmsg_pdev = platform_device_register_data(&rpdev->dev, IMX_PCM_DRV_NAME, - PLATFORM_DEVID_NONE, + PLATFORM_DEVID_AUTO, NULL, 0); if (IS_ERR(data->rpmsg_pdev)) { dev_err(&rpdev->dev, "failed to register rpmsg platform.\n"); @@ -110,6 +110,7 @@ static void imx_audio_rpmsg_remove(struct rpmsg_device *rpdev) static struct rpmsg_device_id imx_audio_rpmsg_id_table[] = { { .name = "rpmsg-audio-channel" }, + { .name = "rpmsg-micfil-channel" }, { }, }; From patchwork Mon Aug 29 07:51:42 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chancel Liu X-Patchwork-Id: 600866 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4AF9BECAAD5 for ; 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So sound cards based on different rpmsg channels can link to their respective platform drivers. Signed-off-by: Chancel Liu --- sound/soc/fsl/imx-pcm-rpmsg.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/sound/soc/fsl/imx-pcm-rpmsg.c b/sound/soc/fsl/imx-pcm-rpmsg.c index 35049043e532..2f310994f7ee 100644 --- a/sound/soc/fsl/imx-pcm-rpmsg.c +++ b/sound/soc/fsl/imx-pcm-rpmsg.c @@ -178,7 +178,7 @@ static int imx_rpmsg_pcm_hw_params(struct snd_soc_component *component, msg->s_msg.param.channels = RPMSG_CH_STEREO; break; default: - ret = -EINVAL; + msg->s_msg.param.channels = params_channels(params); break; } @@ -684,7 +684,7 @@ static int imx_rpmsg_pcm_probe(struct platform_device *pdev) info->rpdev = container_of(pdev->dev.parent, struct rpmsg_device, dev); info->dev = &pdev->dev; /* Setup work queue */ - info->rpmsg_wq = alloc_ordered_workqueue("rpmsg_audio", + info->rpmsg_wq = alloc_ordered_workqueue(info->rpdev->id.name, WQ_HIGHPRI | WQ_UNBOUND | WQ_FREEZABLE); @@ -723,11 +723,15 @@ static int imx_rpmsg_pcm_probe(struct platform_device *pdev) if (ret) goto fail; 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Mon, 29 Aug 2022 07:56:12 +0000 From: Chancel Liu To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, devicetree@vger.kernel.org, krzysztof.kozlowski+dt@linaro.org, shengjiu.wang@nxp.com, Xiubo.Lee@gmail.com, festevam@gmail.com, nicoleotsuka@gmail.com, linuxppc-dev@lists.ozlabs.org Subject: [PATCH 4/5] ASoC: fsl_rpmsg: Register different CPU DAI drivers Date: Mon, 29 Aug 2022 15:51:43 +0800 Message-Id: <20220829075144.2405000-5-chancel.liu@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220829075144.2405000-1-chancel.liu@nxp.com> References: <20220829075144.2405000-1-chancel.liu@nxp.com> X-ClientProxiedBy: SI2PR06CA0012.apcprd06.prod.outlook.com (2603:1096:4:186::13) To VI1PR04MB4222.eurprd04.prod.outlook.com (2603:10a6:803:46::19) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: d769fa4a-8b0a-4cd4-c805-08da8993f0ce X-MS-TrafficTypeDiagnostic: DB7PR04MB4220:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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So sound cards based on different rpmsg channels can link to their respective CPU DAI drivers. Signed-off-by: Chancel Liu --- sound/soc/fsl/fsl_rpmsg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/fsl/fsl_rpmsg.c b/sound/soc/fsl/fsl_rpmsg.c index bf94838bdbef..fde3d5006ce0 100644 --- a/sound/soc/fsl/fsl_rpmsg.c +++ b/sound/soc/fsl/fsl_rpmsg.c @@ -235,7 +235,7 @@ static int fsl_rpmsg_probe(struct platform_device *pdev) rpmsg->card_pdev = platform_device_register_data(&pdev->dev, "imx-audio-rpmsg", - PLATFORM_DEVID_NONE, + PLATFORM_DEVID_AUTO, NULL, 0); if (IS_ERR(rpmsg->card_pdev)) { From patchwork Mon Aug 29 07:51:44 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chancel Liu X-Patchwork-Id: 600865 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E7755C0502E for ; 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Signed-off-by: Chancel Liu --- sound/soc/fsl/imx-rpmsg.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/sound/soc/fsl/imx-rpmsg.c b/sound/soc/fsl/imx-rpmsg.c index 2e117311e582..c534b638698e 100644 --- a/sound/soc/fsl/imx-rpmsg.c +++ b/sound/soc/fsl/imx-rpmsg.c @@ -36,6 +36,7 @@ static int imx_rpmsg_probe(struct platform_device *pdev) struct platform_device *rpmsg_pdev = to_platform_device(dev); struct device_node *np = rpmsg_pdev->dev.of_node; struct of_phandle_args args; + const char *platform_name; struct imx_rpmsg *data; int ret = 0; @@ -81,7 +82,10 @@ static int imx_rpmsg_probe(struct platform_device *pdev) } data->dai.cpus->dai_name = dev_name(&rpmsg_pdev->dev); - data->dai.platforms->name = IMX_PCM_DRV_NAME; + if (!of_property_read_string(np, "fsl,platform", &platform_name)) + data->dai.platforms->name = platform_name; + else + data->dai.platforms->name = "rpmsg-audio-channel"; data->dai.playback_only = true; data->dai.capture_only = true; data->card.num_links = 1;