ASoC: Add support for Rpi-DAC

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 7956d96..9473ef0 100644 (file)
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -118,6 +118,7 @@ config SND_SOC_ALL_CODECS
        select SND_SOC_PCM179X_SPI if SPI_MASTER
        select SND_SOC_PCM186X_I2C if I2C
        select SND_SOC_PCM186X_SPI if SPI_MASTER
+       select SND_SOC_PCM1794A if I2C
        select SND_SOC_PCM3008
        select SND_SOC_PCM3168A_I2C if I2C
        select SND_SOC_PCM3168A_SPI if SPI_MASTER
@@ -834,6 +835,10 @@ config SND_SOC_RT5616
        tristate "Realtek RT5616 CODEC"
        depends on I2C
 
+config SND_SOC_PCM1794A
+       tristate
+       depends on I2C
+
 config SND_SOC_RT5631
        tristate "Realtek ALC5631/RT5631 CODEC"
        depends on I2C

diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 7ae7c85..db39e34 100644 (file)
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -118,6 +118,7 @@ snd-soc-pcm179x-spi-objs := pcm179x-spi.o
 snd-soc-pcm186x-objs := pcm186x.o
 snd-soc-pcm186x-i2c-objs := pcm186x-i2c.o
 snd-soc-pcm186x-spi-objs := pcm186x-spi.o
+snd-soc-pcm1794a-objs := pcm1794a.o
 snd-soc-pcm3008-objs := pcm3008.o
 snd-soc-pcm3168a-objs := pcm3168a.o
 snd-soc-pcm3168a-i2c-objs := pcm3168a-i2c.o
@@ -386,6 +387,7 @@ obj-$(CONFIG_SND_SOC_PCM5102A)      += snd-soc-pcm5102a.o
 obj-$(CONFIG_SND_SOC_PCM512x)  += snd-soc-pcm512x.o
 obj-$(CONFIG_SND_SOC_PCM512x_I2C)      += snd-soc-pcm512x-i2c.o
 obj-$(CONFIG_SND_SOC_PCM512x_SPI)      += snd-soc-pcm512x-spi.o
+obj-$(CONFIG_SND_SOC_PCM1794A) += snd-soc-pcm1794a.o
 obj-$(CONFIG_SND_SOC_RL6231)   += snd-soc-rl6231.o
 obj-$(CONFIG_SND_SOC_RL6347A)  += snd-soc-rl6347a.o
 obj-$(CONFIG_SND_SOC_RT1305)   += snd-soc-rt1305.o

diff --git a/sound/soc/codecs/pcm1794a.c b/sound/soc/codecs/pcm1794a.c
new file mode 100644 (file)
index 0000000..36b5b6c
--- /dev/null
+++ b/sound/soc/codecs/pcm1794a.c
@@ -0,0 +1,69 @@
+/*
+ * Driver for the PCM1794A codec
+ *
+ * Author:     Florian Meier <florian.meier@koalo.de>
+ *             Copyright 2013
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <sound/soc.h>
+
+static struct snd_soc_dai_driver pcm1794a_dai = {
+       .name = "pcm1794a-hifi",
+       .playback = {
+               .channels_min = 2,
+               .channels_max = 2,
+               .rates = SNDRV_PCM_RATE_8000_192000,
+               .formats = SNDRV_PCM_FMTBIT_S16_LE |
+                          SNDRV_PCM_FMTBIT_S24_LE
+       },
+};
+
+static struct snd_soc_component_driver soc_component_dev_pcm1794a;
+
+static int pcm1794a_probe(struct platform_device *pdev)
+{
+       return snd_soc_register_component(&pdev->dev, &soc_component_dev_pcm1794a,
+                       &pcm1794a_dai, 1);
+}
+
+static int pcm1794a_remove(struct platform_device *pdev)
+{
+       snd_soc_unregister_component(&pdev->dev);
+       return 0;
+}
+
+static const struct of_device_id pcm1794a_of_match[] = {
+       { .compatible = "ti,pcm1794a", },
+       { }
+};
+MODULE_DEVICE_TABLE(of, pcm1794a_of_match);
+
+static struct platform_driver pcm1794a_component_driver = {
+       .probe          = pcm1794a_probe,
+       .remove         = pcm1794a_remove,
+       .driver         = {
+               .name   = "pcm1794a-codec",
+               .owner  = THIS_MODULE,
+               .of_match_table = of_match_ptr(pcm1794a_of_match),
+       },
+};
+
+module_platform_driver(pcm1794a_component_driver);
+
+MODULE_DESCRIPTION("ASoC PCM1794A codec driver");
+MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>");
+MODULE_LICENSE("GPL v2");