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-rw-r--r--Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml36
-rw-r--r--sound/soc/fsl/fsl_rpmsg.c6
-rw-r--r--sound/soc/fsl/imx-audio-rpmsg.c3
-rw-r--r--sound/soc/fsl/imx-pcm-rpmsg.c10
-rw-r--r--sound/soc/fsl/imx-rpmsg.c6
5 files changed, 51 insertions, 10 deletions
diff --git a/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml b/Documentation/devicetree/bindings/sound/fsl,rpmsg.yaml
index d370c98a62c7..e847611a85f7 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 +88,16 @@ properties:
This is a boolean property. If present, the receiving function
will be enabled.
+ fsl,rpmsg-channel-name:
+ $ref: /schemas/types.yaml#/definitions/string
+ description: |
+ A string property to assign 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".
+ enum:
+ - rpmsg-audio-channel
+ - rpmsg-micfil-channel
+
required:
- compatible
- model
@@ -107,3 +120,22 @@ examples:
<&clk IMX8MN_AUDIO_PLL2_OUT>;
clock-names = "ipg", "mclk", "dma", "pll8k", "pll11k";
};
+
+ - |
+ #include <dt-bindings/clock/imx8mm-clock.h>
+
+ rpmsg_micfil: audio-controller {
+ compatible = "fsl,imx8mm-rpmsg-audio";
+ model = "micfil-audio";
+ fsl,rpmsg-channel-name = "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";
+ };
+
+...
diff --git a/sound/soc/fsl/fsl_rpmsg.c b/sound/soc/fsl/fsl_rpmsg.c
index bf94838bdbef..46c7868a2653 100644
--- a/sound/soc/fsl/fsl_rpmsg.c
+++ b/sound/soc/fsl/fsl_rpmsg.c
@@ -117,14 +117,14 @@ static struct snd_soc_dai_driver fsl_rpmsg_dai = {
.playback = {
.stream_name = "CPU-Playback",
.channels_min = 2,
- .channels_max = 2,
+ .channels_max = 32,
.rates = SNDRV_PCM_RATE_KNOT,
.formats = FSL_RPMSG_FORMATS,
},
.capture = {
.stream_name = "CPU-Capture",
.channels_min = 2,
- .channels_max = 2,
+ .channels_max = 32,
.rates = SNDRV_PCM_RATE_KNOT,
.formats = FSL_RPMSG_FORMATS,
},
@@ -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)) {
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" },
{ },
};
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;
- component = snd_soc_lookup_component(&pdev->dev, IMX_PCM_DRV_NAME);
+ component = snd_soc_lookup_component(&pdev->dev, NULL);
if (!component) {
ret = -EINVAL;
goto fail;
}
+
+ /* platform component name is used by machine driver to link with */
+ component->name = info->rpdev->id.name;
+
#ifdef CONFIG_DEBUG_FS
component->debugfs_prefix = "rpmsg";
#endif
diff --git a/sound/soc/fsl/imx-rpmsg.c b/sound/soc/fsl/imx-rpmsg.c
index 4d99f4858a14..89178106fe2c 100644
--- a/sound/soc/fsl/imx-rpmsg.c
+++ b/sound/soc/fsl/imx-rpmsg.c
@@ -58,6 +58,7 @@ 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;
@@ -109,7 +110,10 @@ 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,rpmsg-channel-name", &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;
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