--- /dev/null
+* Texas Instruments OMAP4+ and twl6040 based audio setups
+
+Required properties:
+- compatible: "ti,abe-twl6040"
+- ti,model: Name of the sound card ( for example "SDP4430")
+- ti,mclk-freq: MCLK frequency for HPPLL operation
+- ti,mcpdm: phandle for the McPDM node
+- ti,twl6040: phandle for the twl6040 core node
+- ti,audio-routing: List of connections between audio components.
+ Each entry is a pair of strings, the first being the connection's sink,
+ the second being the connection's source.
+
+Optional properties:
+- ti,dmic: phandle for the OMAP dmic node if the machine have it connected
+- ti,jack_detection: Need to be set to <1> if the board capable to detect jack
+ insertion, removal.
+
+Available audio endpoints for the audio-routing table:
+
+Board connectors:
+ * Headset Stereophone
+ * Earphone Spk
+ * Ext Spk
+ * Line Out
+ * Vibrator
+ * Headset Mic
+ * Main Handset Mic
+ * Sub Handset Mic
+ * Line In
+ * Digital Mic
+
+twl6040 pins:
+ * HSOL
+ * HSOR
+ * EP
+ * HFL
+ * HFR
+ * AUXL
+ * AUXR
+ * VIBRAL
+ * VIBRAR
+ * HSMIC
+ * MAINMIC
+ * SUBMIC
+ * AFML
+ * AFMR
+
+ * Headset Mic Bias
+ * Main Mic Bias
+ * Digital Mic1 Bias
+ * Digital Mic2 Bias
+
+Digital mic pins:
+ * DMic
+
+Example:
+
+sound {
+ compatible = "ti,abe-twl6040";
+ ti,model = "SDP4430";
+
+ ti,jack-detection = <1>;
+ ti,mclk-freq = <38400000>;
+
+ ti,mcpdm = <&mcpdm>;
+ ti,dmic = <&dmic>;
+
+ ti,twl6040 = <&twl6040>;
+
+ /* Audio routing */
+ ti,audio-routing =
+ "Headset Stereophone", "HSOL",
+ "Headset Stereophone", "HSOR",
+ "Earphone Spk", "EP",
+ "Ext Spk", "HFL",
+ "Ext Spk", "HFR",
+ "Line Out", "AUXL",
+ "Line Out", "AUXR",
+ "Vibrator", "VIBRAL",
+ "Vibrator", "VIBRAR",
+ "HSMIC", "Headset Mic",
+ "Headset Mic", "Headset Mic Bias",
+ "MAINMIC", "Main Handset Mic",
+ "Main Handset Mic", "Main Mic Bias",
+ "SUBMIC", "Sub Handset Mic",
+ "Sub Handset Mic", "Main Mic Bias",
+ "AFML", "Line In",
+ "AFMR", "Line In",
+ "DMic", "Digital Mic",
+ "Digital Mic", "Digital Mic1 Bias";
+};
#include <linux/mfd/twl6040.h>
#include <linux/platform_data/omap-abe-twl6040.h>
#include <linux/module.h>
+#include <linux/of.h>
#include <sound/core.h>
#include <sound/pcm.h>
struct abe_twl6040 {
int jack_detection; /* board can detect jack events */
int mclk_freq; /* MCLK frequency speed for twl6040 */
+
+ struct platform_device *dmic_codec_dev;
};
static int omap_abe_hw_params(struct snd_pcm_substream *substream,
int hs_trim;
int ret = 0;
- /* Disable not connected paths if not used */
- twl6040_disconnect_pin(dapm, pdata->has_hs, "Headset Stereophone");
- twl6040_disconnect_pin(dapm, pdata->has_hf, "Ext Spk");
- twl6040_disconnect_pin(dapm, pdata->has_ep, "Earphone Spk");
- twl6040_disconnect_pin(dapm, pdata->has_aux, "Line Out");
- twl6040_disconnect_pin(dapm, pdata->has_vibra, "Vinrator");
- twl6040_disconnect_pin(dapm, pdata->has_hsmic, "Headset Mic");
- twl6040_disconnect_pin(dapm, pdata->has_mainmic, "Main Handset Mic");
- twl6040_disconnect_pin(dapm, pdata->has_submic, "Sub Handset Mic");
- twl6040_disconnect_pin(dapm, pdata->has_afm, "Line In");
-
/*
* Configure McPDM offset cancellation based on the HSOTRIM value from
* twl6040.
twl6040_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADSET);
}
+ /*
+ * NULL pdata means we booted with DT. In this case the routing is
+ * provided and the card is fully routed, no need to mark pins.
+ */
+ if (!pdata)
+ return ret;
+
+ /* Disable not connected paths if not used */
+ twl6040_disconnect_pin(dapm, pdata->has_hs, "Headset Stereophone");
+ twl6040_disconnect_pin(dapm, pdata->has_hf, "Ext Spk");
+ twl6040_disconnect_pin(dapm, pdata->has_ep, "Earphone Spk");
+ twl6040_disconnect_pin(dapm, pdata->has_aux, "Line Out");
+ twl6040_disconnect_pin(dapm, pdata->has_vibra, "Vinrator");
+ twl6040_disconnect_pin(dapm, pdata->has_hsmic, "Headset Mic");
+ twl6040_disconnect_pin(dapm, pdata->has_mainmic, "Main Handset Mic");
+ twl6040_disconnect_pin(dapm, pdata->has_submic, "Sub Handset Mic");
+ twl6040_disconnect_pin(dapm, pdata->has_afm, "Line In");
+
return ret;
}
static __devinit int omap_abe_probe(struct platform_device *pdev)
{
struct omap_abe_twl6040_data *pdata = dev_get_platdata(&pdev->dev);
+ struct device_node *node = pdev->dev.of_node;
struct snd_soc_card *card = &omap_abe_card;
struct abe_twl6040 *priv;
int num_links = 0;
- int ret;
+ int ret = 0;
card->dev = &pdev->dev;
- if (!pdata) {
- dev_err(&pdev->dev, "Missing pdata\n");
- return -ENODEV;
- }
-
priv = devm_kzalloc(&pdev->dev, sizeof(struct abe_twl6040), GFP_KERNEL);
if (priv == NULL)
return -ENOMEM;
- if (pdata->card_name) {
- card->name = pdata->card_name;
+ priv->dmic_codec_dev = ERR_PTR(-EINVAL);
+
+ if (node) {
+ struct device_node *dai_node;
+
+ if (snd_soc_of_parse_card_name(card, "ti,model")) {
+ dev_err(&pdev->dev, "Card name is not provided\n");
+ return -ENODEV;
+ }
+
+ ret = snd_soc_of_parse_audio_routing(card,
+ "ti,audio-routing");
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Error while parsing DAPM routing\n");
+ return ret;
+ }
+
+ dai_node = of_parse_phandle(node, "ti,mcpdm", 0);
+ if (!dai_node) {
+ dev_err(&pdev->dev, "McPDM node is not provided\n");
+ return -EINVAL;
+ }
+ abe_twl6040_dai_links[0].cpu_dai_name = NULL;
+ abe_twl6040_dai_links[0].cpu_of_node = dai_node;
+
+ dai_node = of_parse_phandle(node, "ti,dmic", 0);
+ if (dai_node) {
+ num_links = 2;
+ abe_twl6040_dai_links[1].cpu_dai_name = NULL;
+ abe_twl6040_dai_links[1].cpu_of_node = dai_node;
+
+ priv->dmic_codec_dev = platform_device_register_simple(
+ "dmic-codec", -1, NULL, 0);
+ if (IS_ERR(priv->dmic_codec_dev)) {
+ dev_err(&pdev->dev,
+ "Can't instantiate dmic-codec\n");
+ return PTR_ERR(priv->dmic_codec_dev);
+ }
+ } else {
+ num_links = 1;
+ }
+
+ of_property_read_u32(node, "ti,jack-detection",
+ &priv->jack_detection);
+ of_property_read_u32(node, "ti,mclk-freq",
+ &priv->mclk_freq);
+ if (!priv->mclk_freq) {
+ dev_err(&pdev->dev, "MCLK frequency not provided\n");
+ ret = -EINVAL;
+ goto err_unregister;
+ }
+
+ omap_abe_card.fully_routed = 1;
+ } else if (pdata) {
+ if (pdata->card_name) {
+ card->name = pdata->card_name;
+ } else {
+ dev_err(&pdev->dev, "Card name is not provided\n");
+ return -ENODEV;
+ }
+
+ if (pdata->has_dmic)
+ num_links = 2;
+ else
+ num_links = 1;
+
+ priv->jack_detection = pdata->jack_detection;
+ priv->mclk_freq = pdata->mclk_freq;
} else {
- dev_err(&pdev->dev, "Card name is not provided\n");
+ dev_err(&pdev->dev, "Missing pdata\n");
return -ENODEV;
}
- priv->jack_detection = pdata->jack_detection;
- priv->mclk_freq = pdata->mclk_freq;
-
if (!priv->mclk_freq) {
dev_err(&pdev->dev, "MCLK frequency missing\n");
- return -ENODEV;
+ ret = -ENODEV;
+ goto err_unregister;
}
- if (pdata->has_dmic)
- num_links = 2;
- else
- num_links = 1;
-
card->dai_link = abe_twl6040_dai_links;
card->num_links = num_links;
snd_soc_card_set_drvdata(card, priv);
ret = snd_soc_register_card(card);
- if (ret)
+ if (ret) {
dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
ret);
+ goto err_unregister;
+ }
+
+ return 0;
+
+err_unregister:
+ if (!IS_ERR(priv->dmic_codec_dev))
+ platform_device_unregister(priv->dmic_codec_dev);
return ret;
}
static int __devexit omap_abe_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card);
snd_soc_unregister_card(card);
+ if (!IS_ERR(priv->dmic_codec_dev))
+ platform_device_unregister(priv->dmic_codec_dev);
+
return 0;
}
+static const struct of_device_id omap_abe_of_match[] = {
+ {.compatible = "ti,abe-twl6040", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, omap_abe_of_match);
+
static struct platform_driver omap_abe_driver = {
.driver = {
.name = "omap-abe-twl6040",
.owner = THIS_MODULE,
.pm = &snd_soc_pm_ops,
+ .of_match_table = omap_abe_of_match,
},
.probe = omap_abe_probe,
.remove = __devexit_p(omap_abe_remove),
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