The MQS codec isn't an i2c device, so use of_find_device_by_node
to get platform device pointer.

Because MQS only support playback, then add a new audio map.

And there maybe "model" property or no "audio-routing" property in
devicetree, so add some enhancement for these two property.

Signed-off-by: Shengjiu Wang <shengjiu.w...@nxp.com>
---
changes in v2
- update according Nicolin's comments.

 sound/soc/fsl/fsl-asoc-card.c | 78 +++++++++++++++++++++++++----------
 1 file changed, 57 insertions(+), 21 deletions(-)

diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c
index 00be73900888..d0543a53764e 100644
--- a/sound/soc/fsl/fsl-asoc-card.c
+++ b/sound/soc/fsl/fsl-asoc-card.c
@@ -119,6 +119,13 @@ static const struct snd_soc_dapm_route audio_map_ac97[] = {
        {"ASRC-Capture",  NULL, "AC97 Capture"},
 };
 
+static const struct snd_soc_dapm_route audio_map_tx[] = {
+       /* 1st half -- Normal DAPM routes */
+       {"Playback",  NULL, "CPU-Playback"},
+       /* 2nd half -- ASRC DAPM routes */
+       {"CPU-Playback",  NULL, "ASRC-Playback"},
+};
+
 /* 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),
@@ -485,8 +492,9 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
        struct platform_device *asrc_pdev = NULL;
        struct platform_device *cpu_pdev;
        struct fsl_asoc_card_priv *priv;
-       struct i2c_client *codec_dev;
+       struct device *codec_dev = NULL;
        const char *codec_dai_name;
+       const char *codec_dev_name;
        u32 width;
        int ret;
 
@@ -512,10 +520,23 @@ static int fsl_asoc_card_probe(struct platform_device 
*pdev)
        }
 
        codec_np = of_parse_phandle(np, "audio-codec", 0);
-       if (codec_np)
-               codec_dev = of_find_i2c_device_by_node(codec_np);
-       else
-               codec_dev = NULL;
+       if (codec_np) {
+               struct platform_device *codec_pdev;
+               struct i2c_client *codec_i2c;
+
+               codec_i2c = of_find_i2c_device_by_node(codec_np);
+               if (codec_i2c) {
+                       codec_dev = &codec_i2c->dev;
+                       codec_dev_name = codec_i2c->name;
+               }
+               if (!codec_dev) {
+                       codec_pdev = of_find_device_by_node(codec_np);
+                       if (codec_pdev) {
+                               codec_dev = &codec_pdev->dev;
+                               codec_dev_name = codec_pdev->name;
+                       }
+               }
+       }
 
        asrc_np = of_parse_phandle(np, "audio-asrc", 0);
        if (asrc_np)
@@ -523,7 +544,7 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
 
        /* Get the MCLK rate only, and leave it controlled by CODEC drivers */
        if (codec_dev) {
-               struct clk *codec_clk = clk_get(&codec_dev->dev, NULL);
+               struct clk *codec_clk = clk_get(codec_dev, NULL);
 
                if (!IS_ERR(codec_clk)) {
                        priv->codec_priv.mclk_freq = clk_get_rate(codec_clk);
@@ -538,6 +559,11 @@ static int fsl_asoc_card_probe(struct platform_device 
*pdev)
        /* Assign a default DAI format, and allow each card to overwrite it */
        priv->dai_fmt = DAI_FMT_BASE;
 
+       memcpy(priv->dai_link, fsl_asoc_card_dai,
+              sizeof(struct snd_soc_dai_link) * ARRAY_SIZE(priv->dai_link));
+
+       priv->card.dapm_routes = audio_map;
+       priv->card.num_dapm_routes = ARRAY_SIZE(audio_map);
        /* Diversify the card configurations */
        if (of_device_is_compatible(np, "fsl,imx-audio-cs42888")) {
                codec_dai_name = "cs42888";
@@ -573,6 +599,18 @@ static int fsl_asoc_card_probe(struct platform_device 
*pdev)
                codec_dai_name = "ac97-hifi";
                priv->card.set_bias_level = NULL;
                priv->dai_fmt = SND_SOC_DAIFMT_AC97;
+               priv->card.dapm_routes = audio_map_ac97;
+               priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_ac97);
+       } else if (of_device_is_compatible(np, "fsl,imx-audio-mqs")) {
+               codec_dai_name = "fsl-mqs-dai";
+               priv->card.set_bias_level = NULL;
+               priv->dai_fmt = SND_SOC_DAIFMT_LEFT_J |
+                               SND_SOC_DAIFMT_CBS_CFS |
+                               SND_SOC_DAIFMT_NB_NF;
+               priv->dai_link[1].dpcm_capture = 0;
+               priv->dai_link[2].dpcm_capture = 0;
+               priv->card.dapm_routes = audio_map_tx;
+               priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_tx);
        } else {
                dev_err(&pdev->dev, "unknown Device Tree compatible\n");
                ret = -EINVAL;
@@ -601,19 +639,17 @@ static int fsl_asoc_card_probe(struct platform_device 
*pdev)
                priv->cpu_priv.sysclk_id[0] = FSL_SAI_CLK_MAST1;
        }
 
-       snprintf(priv->name, sizeof(priv->name), "%s-audio",
-                fsl_asoc_card_is_ac97(priv) ? "ac97" :
-                codec_dev->name);
-
        /* Initialize sound card */
        priv->pdev = pdev;
        priv->card.dev = &pdev->dev;
-       priv->card.name = priv->name;
+       ret = snd_soc_of_parse_card_name(&priv->card, "model");
+       if (ret) {
+               snprintf(priv->name, sizeof(priv->name), "%s-audio",
+                        fsl_asoc_card_is_ac97(priv) ? "ac97" : codec_dev_name);
+               priv->card.name = priv->name;
+       }
        priv->card.dai_link = priv->dai_link;
-       priv->card.dapm_routes = fsl_asoc_card_is_ac97(priv) ?
-                                audio_map_ac97 : audio_map;
        priv->card.late_probe = fsl_asoc_card_late_probe;
-       priv->card.num_dapm_routes = ARRAY_SIZE(audio_map);
        priv->card.dapm_widgets = fsl_asoc_card_dapm_widgets;
        priv->card.num_dapm_widgets = ARRAY_SIZE(fsl_asoc_card_dapm_widgets);
 
@@ -621,13 +657,12 @@ static int fsl_asoc_card_probe(struct platform_device 
*pdev)
        if (!asrc_pdev)
                priv->card.num_dapm_routes /= 2;
 
-       memcpy(priv->dai_link, fsl_asoc_card_dai,
-              sizeof(struct snd_soc_dai_link) * ARRAY_SIZE(priv->dai_link));
-
-       ret = snd_soc_of_parse_audio_routing(&priv->card, "audio-routing");
-       if (ret) {
-               dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
-               goto asrc_fail;
+       if (of_property_read_bool(np, "audio-routing")) {
+               ret = snd_soc_of_parse_audio_routing(&priv->card, 
"audio-routing");
+               if (ret) {
+                       dev_err(&pdev->dev, "failed to parse audio-routing: 
%d\n", ret);
+                       goto asrc_fail;
+               }
        }
 
        /* Normal DAI Link */
@@ -724,6 +759,7 @@ static const struct of_device_id fsl_asoc_card_dt_ids[] = {
        { .compatible = "fsl,imx-audio-sgtl5000", },
        { .compatible = "fsl,imx-audio-wm8962", },
        { .compatible = "fsl,imx-audio-wm8960", },
+       { .compatible = "fsl,imx-audio-mqs", },
        {}
 };
 MODULE_DEVICE_TABLE(of, fsl_asoc_card_dt_ids);
-- 
2.21.0

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