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Commit 305e3774 authored by Surendar karka's avatar Surendar karka
Browse files

ASoC: msm: add afe loopback support for msm8952 



Add machine driver changes for AFE Rx to
Tx loopback.

CRs-Fixed: 2080421
Change-Id: I304e50a9c3e531e3f176b4ff6aa90c96f5d9b3cf
Signed-off-by: default avatarSurendar karka <sukark@codeaurora.org>
parent a361e388

Documentation/devicetree/bindings/sound/qcom-audio-dev.txt

+1 −0
Original line number Diff line number Diff line
@@ -1480,6 +1480,7 @@ Optional properties: 
- qcom,wsa-max-devs : Maximum number of WSA881x devices present in the target

- qcom,wsa-devs : List of phandles for all possible WSA881x devices supported for the target

- qcom,wsa-aux-dev-prefix : Name prefix with Left/Right configuration for WSA881x device

- qcom,afe-rxtx-lb: AFE RX to TX loopback.



Example:

sound/soc/msm/msm8952-dai-links.c

+28 −2
Original line number Diff line number Diff line
@@ -1523,6 +1523,22 @@ static struct snd_soc_dai_link msm8952_tdm_be_dai_link[] = { 
	},

};



static struct snd_soc_dai_link msm8952_afe_rxtx_lb_be_dai_link[] = {

	{

		.name = LPASS_BE_AFE_LOOPBACK_TX,

		.stream_name = "AFE Loopback Capture",

		.cpu_dai_name = "msm-dai-q6-dev.24577",

		.platform_name = "msm-pcm-routing",

		.codec_name = "msm-stub-codec.1",

		.codec_dai_name = "msm-stub-tx",

		.no_pcm = 1,

		.dpcm_capture = 1,

		.be_id = MSM_BACKEND_DAI_AFE_LOOPBACK_TX,

		.ignore_pmdown_time = 1,

		.ignore_suspend = 1,

	},

};



struct msm895x_wsa881x_dev_info {

	struct device_node *of_node;

	u32 index;
@@ -1538,7 +1554,8 @@ ARRAY_SIZE(msm8952_tdm_fe_dai) + 
ARRAY_SIZE(msm8952_common_be_dai) +

ARRAY_SIZE(msm8952_tomtom_be_dai) +

ARRAY_SIZE(msm8952_quin_dai_link) +

ARRAY_SIZE(msm8952_tdm_be_dai_link)];

ARRAY_SIZE(msm8952_tdm_be_dai_link) +

ARRAY_SIZE(msm8952_afe_rxtx_lb_be_dai_link)];



static struct snd_soc_dai_link msm8952_tasha_dai_links[

ARRAY_SIZE(msm8952_common_fe_dai) +
@@ -1547,7 +1564,8 @@ ARRAY_SIZE(msm8952_tdm_fe_dai) + 
ARRAY_SIZE(msm8952_common_be_dai) +

ARRAY_SIZE(msm8952_tasha_be_dai) +

ARRAY_SIZE(msm8952_hdmi_dba_dai_link) +

ARRAY_SIZE(msm8952_tdm_be_dai_link)];

ARRAY_SIZE(msm8952_tdm_be_dai_link) +

ARRAY_SIZE(msm8952_afe_rxtx_lb_be_dai_link)];



int msm8952_init_wsa_dev(struct platform_device *pdev,

			struct snd_soc_card *card)
@@ -1803,6 +1821,14 @@ struct snd_soc_card *populate_snd_card_dailinks(struct device *dev) 
			sizeof(msm8952_tdm_be_dai_link));

		len5 += ARRAY_SIZE(msm8952_tdm_be_dai_link);

	}

	if (of_property_read_bool(dev->of_node, "qcom,afe-rxtx-lb")) {

		dev_dbg(dev, "%s(): AFE RX to TX loopback supported\n",

				__func__);

		memcpy(msm8952_dai_links + len5,

		       msm8952_afe_rxtx_lb_be_dai_link,

		       sizeof(msm8952_afe_rxtx_lb_be_dai_link));

		len5 += ARRAY_SIZE(msm8952_afe_rxtx_lb_be_dai_link);

	}

	card->dai_link = msm8952_dai_links;

	card->num_links = len5;

	card->dev = dev;