#include <linux/platform_device.h>
#include <linux/platform_data/edma.h>
#include <linux/i2c.h>
+#include <linux/of_platform.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <asm/dma.h>
#include <asm/mach-types.h>
+#include <linux/edma.h>
+
#include "davinci-pcm.h"
#include "davinci-i2s.h"
#include "davinci-mcasp.h"
+struct snd_soc_card_drvdata_davinci {
+ unsigned sysclk;
+};
+
#define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
static int evm_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_card *soc_card = codec->card;
int ret = 0;
- unsigned sysclk;
-
- /* ASP1 on DM355 EVM is clocked by an external oscillator */
- if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm() ||
- machine_is_davinci_dm365_evm())
- sysclk = 27000000;
-
- /* ASP0 in DM6446 EVM is clocked by U55, as configured by
- * board-dm644x-evm.c using GPIOs from U18. There are six
- * options; here we "know" we use a 48 KHz sample rate.
- */
- else if (machine_is_davinci_evm())
- sysclk = 12288000;
-
- else if (machine_is_davinci_da830_evm() ||
- machine_is_davinci_da850_evm())
- sysclk = 24576000;
-
- else
- return -EINVAL;
+ unsigned sysclk = ((struct snd_soc_card_drvdata_davinci *)
+ snd_soc_card_get_drvdata(soc_card))->sysclk;
/* set codec DAI configuration */
ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
{
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_dapm_context *dapm = &codec->dapm;
+ struct device_node *np = codec->card->dev->of_node;
+ int ret;
/* Add davinci-evm specific widgets */
snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
ARRAY_SIZE(aic3x_dapm_widgets));
- /* Set up davinci-evm specific audio path audio_map */
- snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
+ if (np) {
+ ret = snd_soc_of_parse_audio_routing(codec->card,
+ "ti,audio-routing");
+ if (ret)
+ return ret;
+ } else {
+ /* Set up davinci-evm specific audio path audio_map */
+ snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
+ }
/* not connected */
snd_soc_dapm_disable_pin(dapm, "MONO_LOUT");
};
/* davinci dm6446 evm audio machine driver */
+/*
+ * ASP0 in DM6446 EVM is clocked by U55, as configured by
+ * board-dm644x-evm.c using GPIOs from U18. There are six
+ * options; here we "know" we use a 48 KHz sample rate.
+ */
+static struct snd_soc_card_drvdata_davinci dm6446_snd_soc_card_drvdata = {
+ .sysclk = 12288000,
+};
+
static struct snd_soc_card dm6446_snd_soc_card_evm = {
.name = "DaVinci DM6446 EVM",
.owner = THIS_MODULE,
.dai_link = &dm6446_evm_dai,
.num_links = 1,
+ .drvdata = &dm6446_snd_soc_card_drvdata,
};
/* davinci dm355 evm audio machine driver */
+/* ASP1 on DM355 EVM is clocked by an external oscillator */
+static struct snd_soc_card_drvdata_davinci dm355_snd_soc_card_drvdata = {
+ .sysclk = 27000000,
+};
+
static struct snd_soc_card dm355_snd_soc_card_evm = {
.name = "DaVinci DM355 EVM",
.owner = THIS_MODULE,
.dai_link = &dm355_evm_dai,
.num_links = 1,
+ .drvdata = &dm355_snd_soc_card_drvdata,
};
/* davinci dm365 evm audio machine driver */
+static struct snd_soc_card_drvdata_davinci dm365_snd_soc_card_drvdata = {
+ .sysclk = 27000000,
+};
+
static struct snd_soc_card dm365_snd_soc_card_evm = {
.name = "DaVinci DM365 EVM",
.owner = THIS_MODULE,
.dai_link = &dm365_evm_dai,
.num_links = 1,
+ .drvdata = &dm365_snd_soc_card_drvdata,
};
/* davinci dm6467 evm audio machine driver */
+static struct snd_soc_card_drvdata_davinci dm6467_snd_soc_card_drvdata = {
+ .sysclk = 27000000,
+};
+
static struct snd_soc_card dm6467_snd_soc_card_evm = {
.name = "DaVinci DM6467 EVM",
.owner = THIS_MODULE,
.dai_link = dm6467_evm_dai,
.num_links = ARRAY_SIZE(dm6467_evm_dai),
+ .drvdata = &dm6467_snd_soc_card_drvdata,
+};
+
+static struct snd_soc_card_drvdata_davinci da830_snd_soc_card_drvdata = {
+ .sysclk = 24576000,
};
static struct snd_soc_card da830_snd_soc_card = {
.owner = THIS_MODULE,
.dai_link = &da830_evm_dai,
.num_links = 1,
+ .drvdata = &da830_snd_soc_card_drvdata,
+};
+
+static struct snd_soc_card_drvdata_davinci da850_snd_soc_card_drvdata = {
+ .sysclk = 24576000,
};
static struct snd_soc_card da850_snd_soc_card = {
.owner = THIS_MODULE,
.dai_link = &da850_evm_dai,
.num_links = 1,
+ .drvdata = &da850_snd_soc_card_drvdata,
+};
+
+#if defined(CONFIG_OF)
+
+/*
+ * The struct is used as place holder. It will be completely
+ * filled with data from dt node.
+ */
+static struct snd_soc_dai_link evm_dai_tlv320aic3x = {
+ .name = "TLV320AIC3X",
+ .stream_name = "AIC3X",
+ .codec_dai_name = "tlv320aic3x-hifi",
+ .ops = &evm_ops,
+ .init = evm_aic3x_init,
+};
+
+static const struct of_device_id davinci_evm_dt_ids[] = {
+ {
+ .compatible = "ti,da830-evm-audio",
+ .data = (void *) &evm_dai_tlv320aic3x,
+ },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, davinci_evm_dt_ids);
+
+/* davinci evm audio machine driver */
+static struct snd_soc_card evm_soc_card = {
+ .owner = THIS_MODULE,
+ .num_links = 1,
};
+static int davinci_evm_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ const struct of_device_id *match =
+ of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev);
+ struct snd_soc_dai_link *dai = (struct snd_soc_dai_link *) match->data;
+ struct snd_soc_card_drvdata_davinci *drvdata = NULL;
+ int ret = 0;
+
+ evm_soc_card.dai_link = dai;
+
+ dai->codec_of_node = of_parse_phandle(np, "ti,audio-codec", 0);
+ if (!dai->codec_of_node)
+ return -EINVAL;
+
+ dai->cpu_of_node = of_parse_phandle(np, "ti,mcasp-controller", 0);
+ if (!dai->cpu_of_node)
+ return -EINVAL;
+
+ dai->platform_of_node = dai->cpu_of_node;
+
+ evm_soc_card.dev = &pdev->dev;
+ ret = snd_soc_of_parse_card_name(&evm_soc_card, "ti,model");
+ if (ret)
+ return ret;
+
+ drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
+ if (!drvdata)
+ return -ENOMEM;
+
+ ret = of_property_read_u32(np, "ti,codec-clock-rate", &drvdata->sysclk);
+ if (ret < 0)
+ return -EINVAL;
+
+ snd_soc_card_set_drvdata(&evm_soc_card, drvdata);
+ ret = devm_snd_soc_register_card(&pdev->dev, &evm_soc_card);
+
+ if (ret)
+ dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
+
+ return ret;
+}
+
+static int davinci_evm_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ snd_soc_unregister_card(card);
+
+ return 0;
+}
+
+static struct platform_driver davinci_evm_driver = {
+ .probe = davinci_evm_probe,
+ .remove = davinci_evm_remove,
+ .driver = {
+ .name = "davinci_evm",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(davinci_evm_dt_ids),
+ },
+};
+#endif
+
static struct platform_device *evm_snd_device;
static int __init evm_init(void)
int index;
int ret;
+ /*
+ * If dtb is there, the devices will be created dynamically.
+ * Only register platfrom driver structure.
+ */
+#if defined(CONFIG_OF)
+ if (of_have_populated_dt())
+ return platform_driver_register(&davinci_evm_driver);
+#endif
+
if (machine_is_davinci_evm()) {
evm_snd_dev_data = &dm6446_snd_soc_card_evm;
index = 0;
static void __exit evm_exit(void)
{
+#if defined(CONFIG_OF)
+ if (of_have_populated_dt()) {
+ platform_driver_unregister(&davinci_evm_driver);
+ return;
+ }
+#endif
+
platform_device_unregister(evm_snd_device);
}
projects / karo-tx-linux.git / blobdiff