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Subject[PATCH 2/3] ASoC: Blackfin: Add bf5xx-adau1701 machine driver
Date
Add a machine driver to support the ADAU1701 SigmaDSP processors on
Analog Devices BF5XX evaluation boards.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Mike Frysinger <vapier@gentoo.org>
---
sound/soc/blackfin/Kconfig | 10 +++
sound/soc/blackfin/Makefile | 2 +
sound/soc/blackfin/bf5xx-adau1701.c | 118 +++++++++++++++++++++++++++++++++++
3 files changed, 130 insertions(+), 0 deletions(-)
create mode 100644 sound/soc/blackfin/bf5xx-adau1701.c
diff --git a/sound/soc/blackfin/Kconfig b/sound/soc/blackfin/Kconfig
index ae40359..0777210 100644
--- a/sound/soc/blackfin/Kconfig
+++ b/sound/soc/blackfin/Kconfig
@@ -17,6 +17,16 @@ config SND_BF5XX_SOC_SSM2602
help
Say Y if you want to add support for SoC audio on BF527-EZKIT.

+config SND_BF5XX_SOC_ADAU1701
+ tristate "SoC ADAU1701 Audio support for BF5xx eval boards"
+ depends on SND_BF5XX_I2S
+ select SND_BF5XX_SOC_I2S
+ select SND_SOC_ADAU1701
+ select I2C
+ help
+ Say Y if you want to add support for the ADAU1701 SigmaDSP processor on
+ Analog Devices BF5xx evaluation boards.
+
config SND_BF5XX_SOC_AD73311
tristate "SoC AD73311 Audio support for Blackfin"
depends on SND_BF5XX_I2S
diff --git a/sound/soc/blackfin/Makefile b/sound/soc/blackfin/Makefile
index 49af3f3..1d75173 100644
--- a/sound/soc/blackfin/Makefile
+++ b/sound/soc/blackfin/Makefile
@@ -21,9 +21,11 @@ snd-ad1980-objs := bf5xx-ad1980.o
snd-ssm2602-objs := bf5xx-ssm2602.o
snd-ad73311-objs := bf5xx-ad73311.o
snd-ad193x-objs := bf5xx-ad193x.o
+snd-adau1701-objs := bf5xx-adau1701.o

obj-$(CONFIG_SND_BF5XX_SOC_AD1836) += snd-ad1836.o
obj-$(CONFIG_SND_BF5XX_SOC_AD1980) += snd-ad1980.o
obj-$(CONFIG_SND_BF5XX_SOC_SSM2602) += snd-ssm2602.o
obj-$(CONFIG_SND_BF5XX_SOC_AD73311) += snd-ad73311.o
obj-$(CONFIG_SND_BF5XX_SOC_AD193X) += snd-ad193x.o
+obj-$(CONFIG_SND_BF5XX_SOC_ADAU1701) += snd-adau1701.o
diff --git a/sound/soc/blackfin/bf5xx-adau1701.c b/sound/soc/blackfin/bf5xx-adau1701.c
new file mode 100644
index 0000000..dcdd6cd
--- /dev/null
+++ b/sound/soc/blackfin/bf5xx-adau1701.c
@@ -0,0 +1,118 @@
+/*
+ * Machine driver for ADAU1701 SigmaDSP processor on Analog Devices BF5XX
+ * evaluation boards.
+ *
+ * Copyright 2011 Analog Devices Inc.
+ * Author: Lars-Peter Clausen <lars@metafoo.de>
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+
+#include "../codecs/adau1701.h"
+
+static int bf5xx_adau1701_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ int ret;
+
+ ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret)
+ return ret;
+
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret)
+ return ret;
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, ADAU1701_CLK_SRC_OSC, 12288000,
+ SND_SOC_CLOCK_IN);
+
+ return ret;
+}
+
+static struct snd_soc_ops bf5xx_adau1701_ops = {
+ .hw_params = bf5xx_adau1701_hw_params,
+};
+
+static struct snd_soc_dai_link bf5xx_adau1701_dai[] = {
+ {
+ .name = "adau1701",
+ .stream_name = "adau1701",
+ .cpu_dai_name = "bfin-i2s.0",
+ .codec_dai_name = "adau1701",
+ .platform_name = "bfin-i2s-pcm-audio",
+ .codec_name = "adau1701.0-0034",
+ .ops = &bf5xx_adau1701_ops,
+ },
+ {
+ .name = "adau1701",
+ .stream_name = "adau1701",
+ .cpu_dai_name = "bfin-i2s.1",
+ .codec_dai_name = "adau1701",
+ .platform_name = "bfin-i2s-pcm-audio",
+ .codec_name = "adau1701.0-0034",
+ .ops = &bf5xx_adau1701_ops,
+ },
+};
+
+static struct snd_soc_card bf5xx_adau1701 = {
+ .name = "bfin-adau1701",
+ .dai_link = &bf5xx_adau1701_dai[CONFIG_SND_BF5XX_SPORT_NUM],
+ .num_links = 1,
+};
+
+static int bf5xx_adau1701_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &bf5xx_adau1701;
+
+ card->dev = &pdev->dev;
+
+ return snd_soc_register_card(&bf5xx_adau1701);
+}
+
+static int __devexit bf5xx_adau1701_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 bf5xx_adau1701_driver = {
+ .driver = {
+ .name = "bf5xx-adau1701",
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = bf5xx_adau1701_probe,
+ .remove = __devexit_p(bf5xx_adau1701_remove),
+};
+
+static int __init bf5xx_adau1701_init(void)
+{
+ return platform_driver_register(&bf5xx_adau1701_driver);
+}
+module_init(bf5xx_adau1701_init);
+
+static void __exit bf5xx_adau1701_exit(void)
+{
+ platform_driver_unregister(&bf5xx_adau1701_driver);
+}
+module_exit(bf5xx_adau1701_exit);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("ALSA SoC BF5XX ADAU1701 driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:bfin-adau1701");
--
1.7.2.5


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