linux-kernel - [PATCH 1/2] ASoC: fsl-asoc-card: Add support for si476x codec

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Message-Id: <1606708668-28786-1-git-send-email-shengjiu.wang@nxp.com>
Date:   Mon, 30 Nov 2020 11:57:47 +0800
From:   Shengjiu Wang <shengjiu.wang@....com>
To:     timur@...nel.org, nicoleotsuka@...il.com, Xiubo.Lee@...il.com,
        festevam@...il.com, lgirdwood@...il.com, broonie@...nel.org,
        perex@...ex.cz, tiwai@...e.com, alsa-devel@...a-project.org,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        robh+dt@...nel.org, devicetree@...r.kernel.org
Subject: [PATCH 1/2] ASoC: fsl-asoc-card: Add support for si476x codec

The si476x codec is used for FM radio function on i.MX6
auto board, it only supports recording function.

Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
 sound/soc/fsl/fsl-asoc-card.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c
index a2dd3b6b7fec..f62f81ceab0d 100644
--- a/sound/soc/fsl/fsl-asoc-card.c
+++ b/sound/soc/fsl/fsl-asoc-card.c
@@ -131,6 +131,13 @@ static const struct snd_soc_dapm_route audio_map_tx[] = {
 	{"CPU-Playback",  NULL, "ASRC-Playback"},
 };
 
+static const struct snd_soc_dapm_route audio_map_rx[] = {
+	/* 1st half -- Normal DAPM routes */
+	{"CPU-Capture",  NULL, "Capture"},
+	/* 2nd half -- ASRC DAPM routes */
+	{"ASRC-Capture",  NULL, "CPU-Capture"},
+};
+
 /* Add all possible widgets into here without being redundant */
 static const struct snd_soc_dapm_widget fsl_asoc_card_dapm_widgets[] = {
 	SND_SOC_DAPM_LINE("Line Out Jack", NULL),
@@ -653,6 +660,11 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
 		priv->cpu_priv.slot_width = 32;
 		priv->card.dapm_routes = audio_map_tx;
 		priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_tx);
+	} else if (of_device_is_compatible(np, "fsl,imx-audio-si476x")) {
+		codec_dai_name = "si476x-codec";
+		priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
+		priv->card.dapm_routes = audio_map_rx;
+		priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_rx);
 	} else {
 		dev_err(&pdev->dev, "unknown Device Tree compatible\n");
 		ret = -EINVAL;
@@ -869,6 +881,7 @@ static const struct of_device_id fsl_asoc_card_dt_ids[] = {
 	{ .compatible = "fsl,imx-audio-wm8960", },
 	{ .compatible = "fsl,imx-audio-mqs", },
 	{ .compatible = "fsl,imx-audio-wm8524", },
+	{ .compatible = "fsl,imx-audio-si476x", },
 	{}
 };
 MODULE_DEVICE_TABLE(of, fsl_asoc_card_dt_ids);
-- 
2.27.0