From: Elinor Montmasson <elinor.montmasson@xxxxxxxxxxxxxxxxxxxx>
Add support for the new compatible fsl,imx-audio-dummy-codec.
It allows using the fsl-asoc-card driver with the dummy codec provided
by the kernel utilities instead of a real codec.
For now the compatible is recognised and the codec driver names are set,
but a sound card with this compatible will still be deferred during
initialisation.
Signed-off-by: Elinor Montmasson <elinor.montmasson@xxxxxxxxxxxxxxxxxxxx>
Co-authored-by: Philip-Dylan Gleonec <philip-dylan.gleonec@xxxxxxxxxxxxxxxxxxxx>
---
sound/soc/fsl/fsl-asoc-card.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c
index 76b5bfc288fd..c12a356a86d5 100644
--- a/sound/soc/fsl/fsl-asoc-card.c
+++ b/sound/soc/fsl/fsl-asoc-card.c
@@ -575,7 +575,11 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
goto fail;
}
- codec_np = of_parse_phandle(np, "audio-codec", 0);
+ if (of_device_is_compatible(np, "fsl,imx-audio-dummy-codec"))
+ codec_np = NULL;
+ else
+ codec_np = of_parse_phandle(np, "audio-codec", 0);
+
if (codec_np) {
struct platform_device *codec_pdev;
struct i2c_client *codec_i2c;
@@ -705,6 +709,8 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
if (codec_dev)
priv->codec_priv.mclk = devm_clk_get(codec_dev, NULL);
+ } else if (of_device_is_compatible(np, "fsl,imx-audio-dummy-codec")) {
+ codec_dai_name = "snd-soc-dummy-dai";
} else {
dev_err(&pdev->dev, "unknown Device Tree compatible\n");
ret = -EINVAL;
@@ -806,7 +812,9 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
priv->dai_link[0].cpus->of_node = cpu_np;
priv->dai_link[0].codecs->dai_name = codec_dai_name;
- if (!fsl_asoc_card_is_ac97(priv))
+ if (of_device_is_compatible(np, "fsl,imx-audio-dummy-codec"))
+ priv->dai_link[0].codecs->name = "snd-soc-dummy";
+ else if (!fsl_asoc_card_is_ac97(priv))
priv->dai_link[0].codecs->of_node = codec_np;
else {
u32 idx;
@@ -931,6 +939,7 @@ static const struct of_device_id fsl_asoc_card_dt_ids[] = {
{ .compatible = "fsl,imx-audio-si476x", },
{ .compatible = "fsl,imx-audio-wm8958", },
{ .compatible = "fsl,imx-audio-nau8822", },
+ { .compatible = "fsl,imx-audio-dummy-codec", },
{}
};
MODULE_DEVICE_TABLE(of, fsl_asoc_card_dt_ids);
--
2.25.1
