linux-kernel - [PATCH v3 2/7] ASoC: imx-audio-rpmsg: Create rpmsg channel for MICFIL

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Date:   Fri, 30 Sep 2022 14:44:36 +0800
From:   Chancel Liu <chancel.liu@....com>
To:     lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, robh+dt@...nel.org,
        devicetree@...r.kernel.org, krzysztof.kozlowski+dt@...aro.org,
        shengjiu.wang@...il.com, Xiubo.Lee@...il.com, festevam@...il.com,
        nicoleotsuka@...il.com, linuxppc-dev@...ts.ozlabs.org
Cc:     Chancel Liu <chancel.liu@....com>
Subject: [PATCH v3 2/7] ASoC: imx-audio-rpmsg: Create rpmsg channel for MICFIL

Rpmsg channel for MICFIL can also be created through rpmsg name service
announcement. If this driver is probed, Cortex-A can access MICFIL
which is actually controlled by Cortex-M through rpmsg channel for
MICFIL. This driver also helps register ASoC platform device thus use
of PLATFORM_DEVID_AUTO macro in API can automatically create device for
each rpmsg channel.

Signed-off-by: Chancel Liu <chancel.liu@....com>
---
 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" },
 	{ },
 };
 
-- 
2.25.1