2020-06-16 07:44:54

by Shengjiu Wang

[permalink] [raw]
Subject: [PATCH 2/2] ASoC: fsl-asoc-card: Add MQS support

The MQS codec isn't an i2c device, so add a new platform device for it.

MQS only support playback, so add a new audio map.

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

Signed-off-by: Shengjiu Wang <[email protected]>
---
sound/soc/fsl/fsl-asoc-card.c | 70 ++++++++++++++++++++++++++---------
1 file changed, 52 insertions(+), 18 deletions(-)

diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c
index 00be73900888..2ac8cb9ddd10 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),
@@ -482,6 +489,7 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
{
struct device_node *cpu_np, *codec_np, *asrc_np;
struct device_node *np = pdev->dev.of_node;
+ struct platform_device *codec_pdev = NULL; /* used for non i2c device*/
struct platform_device *asrc_pdev = NULL;
struct platform_device *cpu_pdev;
struct fsl_asoc_card_priv *priv;
@@ -512,10 +520,13 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
}

codec_np = of_parse_phandle(np, "audio-codec", 0);
- if (codec_np)
+ if (codec_np) {
codec_dev = of_find_i2c_device_by_node(codec_np);
- else
+ if (!codec_dev)
+ codec_pdev = of_find_device_by_node(codec_np);
+ } else {
codec_dev = NULL;
+ }

asrc_np = of_parse_phandle(np, "audio-asrc", 0);
if (asrc_np)
@@ -525,6 +536,13 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
if (codec_dev) {
struct clk *codec_clk = clk_get(&codec_dev->dev, NULL);

+ if (!IS_ERR(codec_clk)) {
+ priv->codec_priv.mclk_freq = clk_get_rate(codec_clk);
+ clk_put(codec_clk);
+ }
+ } else if (codec_pdev) {
+ struct clk *codec_clk = clk_get(&codec_pdev->dev, NULL);
+
if (!IS_ERR(codec_clk)) {
priv->codec_priv.mclk_freq = clk_get_rate(codec_clk);
clk_put(codec_clk);
@@ -538,6 +556,11 @@ 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";
@@ -573,13 +596,25 @@ 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_playback = 1;
+ priv->dai_link[2].dpcm_playback = 1;
+ 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;
goto asrc_fail;
}

- if (!fsl_asoc_card_is_ac97(priv) && !codec_dev) {
+ if (!fsl_asoc_card_is_ac97(priv) && !codec_dev && !codec_pdev) {
dev_err(&pdev->dev, "failed to find codec device\n");
ret = -EPROBE_DEFER;
goto asrc_fail;
@@ -601,19 +636,18 @@ 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 ? codec_dev->name : codec_pdev->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 +655,12 @@ 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 +757,7 @@ 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


2020-06-17 00:53:18

by Nicolin Chen

[permalink] [raw]
Subject: Re: [PATCH 2/2] ASoC: fsl-asoc-card: Add MQS support

On Tue, Jun 16, 2020 at 03:30:37PM +0800, Shengjiu Wang wrote:
> The MQS codec isn't an i2c device, so add a new platform device for it.
>
> MQS only support playback, so add a new audio map.
>
> Add there maybe "model" property or no "audio-routing" property insertions

"Add" => "And"

> devicetree, so add some enhancement for these two property.
>
> Signed-off-by: Shengjiu Wang <[email protected]>
> ---
> sound/soc/fsl/fsl-asoc-card.c | 70 ++++++++++++++++++++++++++---------
> 1 file changed, 52 insertions(+), 18 deletions(-)
>
> diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c
> index 00be73900888..2ac8cb9ddd10 100644
> --- a/sound/soc/fsl/fsl-asoc-card.c
> +++ b/sound/soc/fsl/fsl-asoc-card.c

> @@ -482,6 +489,7 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
> {
> struct device_node *cpu_np, *codec_np, *asrc_np;
> struct device_node *np = pdev->dev.of_node;
> + struct platform_device *codec_pdev = NULL; /* used for non i2c device*/

Having both codec_pdev and codec_dev duplicates things. Actually
only a couple of places really need "codec_dev" -- most of them
need codec_dev->dev pointer instead. So we could have a cleanup:

- struct i2c_client *codec_dev;
+ struct device *codec_dev = NULL;

> @@ -512,10 +520,13 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
> }
>
> codec_np = of_parse_phandle(np, "audio-codec", 0);
> - if (codec_np)
> + if (codec_np) {
> codec_dev = of_find_i2c_device_by_node(codec_np);
> - else
> + if (!codec_dev)
> + codec_pdev = of_find_device_by_node(codec_np);
> + } else {
> codec_dev = NULL;
> + }

Here can have something like (feel free to simplify):

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;

if (!codec_dev) {
codec_pdev = of_find_device_by_node(codec_np);
codec_dev = &codec_pdev->dev;
}
}
> asrc_np = of_parse_phandle(np, "audio-asrc", 0);
> if (asrc_np)
> @@ -525,6 +536,13 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
> if (codec_dev) {
> struct clk *codec_clk = clk_get(&codec_dev->dev, NULL);

Then here:

- struct clk *codec_clk = clk_get(&codec_dev->dev, NULL);
+ struct clk *codec_clk = clk_get(codec_dev, NULL);

> @@ -538,6 +556,11 @@ 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));

> @@ -573,13 +596,25 @@ 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_playback = 1;
> + priv->dai_link[2].dpcm_playback = 1;

dpcm_playback = 1? That's the default value in fsl_asoc_card_dai.

> @@ -601,19 +636,18 @@ 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 ? codec_dev->name : codec_pdev->name));

We can just use dev_name() if codec_dev is struct device *
Or having a codec_dev_name to cache codec_pdev/i2c->name.

> - 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;

Hmm...audio-routing is a required property in DT binding doc.
So you might need to update that too.

2020-06-17 03:34:32

by Shengjiu Wang

[permalink] [raw]
Subject: Re: [PATCH 2/2] ASoC: fsl-asoc-card: Add MQS support

On Wed, Jun 17, 2020 at 8:50 AM Nicolin Chen <[email protected]> wrote:
>
> On Tue, Jun 16, 2020 at 03:30:37PM +0800, Shengjiu Wang wrote:
> > The MQS codec isn't an i2c device, so add a new platform device for it.
> >
> > MQS only support playback, so add a new audio map.
> >
> > Add there maybe "model" property or no "audio-routing" property insertions
>
> "Add" => "And"
>
> > devicetree, so add some enhancement for these two property.
> >
> > Signed-off-by: Shengjiu Wang <[email protected]>
> > ---
> > sound/soc/fsl/fsl-asoc-card.c | 70 ++++++++++++++++++++++++++---------
> > 1 file changed, 52 insertions(+), 18 deletions(-)
> >
> > diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c
> > index 00be73900888..2ac8cb9ddd10 100644
> > --- a/sound/soc/fsl/fsl-asoc-card.c
> > +++ b/sound/soc/fsl/fsl-asoc-card.c
>
> > @@ -482,6 +489,7 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
> > {
> > struct device_node *cpu_np, *codec_np, *asrc_np;
> > struct device_node *np = pdev->dev.of_node;
> > + struct platform_device *codec_pdev = NULL; /* used for non i2c device*/
>
> Having both codec_pdev and codec_dev duplicates things. Actually
> only a couple of places really need "codec_dev" -- most of them
> need codec_dev->dev pointer instead. So we could have a cleanup:
>
> - struct i2c_client *codec_dev;
> + struct device *codec_dev = NULL;
>
> > @@ -512,10 +520,13 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
> > }
> >
> > codec_np = of_parse_phandle(np, "audio-codec", 0);
> > - if (codec_np)
> > + if (codec_np) {
> > codec_dev = of_find_i2c_device_by_node(codec_np);
> > - else
> > + if (!codec_dev)
> > + codec_pdev = of_find_device_by_node(codec_np);
> > + } else {
> > codec_dev = NULL;
> > + }
>
> Here can have something like (feel free to simplify):
>
> 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;
>
> if (!codec_dev) {
> codec_pdev = of_find_device_by_node(codec_np);
> codec_dev = &codec_pdev->dev;
> }
> }
> > asrc_np = of_parse_phandle(np, "audio-asrc", 0);
> > if (asrc_np)
> > @@ -525,6 +536,13 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
> > if (codec_dev) {
> > struct clk *codec_clk = clk_get(&codec_dev->dev, NULL);
>
> Then here:
>
> - struct clk *codec_clk = clk_get(&codec_dev->dev, NULL);
> + struct clk *codec_clk = clk_get(codec_dev, NULL);
>
> > @@ -538,6 +556,11 @@ 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));
>
> > @@ -573,13 +596,25 @@ 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_playback = 1;
> > + priv->dai_link[2].dpcm_playback = 1;
>
> dpcm_playback = 1? That's the default value in fsl_asoc_card_dai.

ah, should be dpcm_capture = 0.

>
> > @@ -601,19 +636,18 @@ 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 ? codec_dev->name : codec_pdev->name));
>
> We can just use dev_name() if codec_dev is struct device *
> Or having a codec_dev_name to cache codec_pdev/i2c->name.
>
> > - 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;
>
> Hmm...audio-routing is a required property in DT binding doc.
> So you might need to update that too.

will update them in v2.

best regards
wang shengjiu