ASoC: pcm5102a: Add support for PCM5102A codec

Some definitions to support the PCM5102A codec
by Texas Instruments.

Signed-off-by: Florian Meier <florian.meier@koalo.de>

Changes to original patch by Florian Meier:
* rebased (Makefile and Kconfig
* fixed checkpath errors (spaces, newlines)
* added dt-binding documentation

Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

4 files changed, 88 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/sound/pcm5102a.txt b/Documentation/devicetree/bindings/sound/pcm5102a.txt
new file mode 100644
index 000000000000..c63ab0b6ee19
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/pcm5102a.txt
@@ -0,0 +1,13 @@
+PCM5102a audio CODECs
+
+These devices does not use I2C or SPI.
+
+Required properties:
+
+  - compatible : set as "ti,pcm5102a"
+
+Examples:
+
+        pcm5102a: pcm5102a {
+                compatible = "ti,pcm5102a";
+        };
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 649e92a252ae..f736953a4fd9 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -94,6 +94,7 @@ config SND_SOC_ALL_CODECS
         select SND_SOC_PCM3008
         select SND_SOC_PCM3168A_I2C if I2C
         select SND_SOC_PCM3168A_SPI if SPI_MASTER
+        select SND_SOC_PCM5102A
         select SND_SOC_PCM512x_I2C if I2C
         select SND_SOC_PCM512x_SPI if SPI_MASTER
         select SND_SOC_RT286 if I2C
@@ -575,6 +576,9 @@ config SND_SOC_PCM3168A_SPI
         select SND_SOC_PCM3168A
         select REGMAP_SPI
 
+config SND_SOC_PCM5102A
+        tristate
+
 config SND_SOC_PCM512x
         tristate
 
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 185a712a7fe7..4532a743b5f8 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -89,6 +89,7 @@ snd-soc-pcm3008-objs := pcm3008.o
 snd-soc-pcm3168a-objs := pcm3168a.o
 snd-soc-pcm3168a-i2c-objs := pcm3168a-i2c.o
 snd-soc-pcm3168a-spi-objs := pcm3168a-spi.o
+snd-soc-pcm5102a-objs := pcm5102a.o
 snd-soc-pcm512x-objs := pcm512x.o
 snd-soc-pcm512x-i2c-objs := pcm512x-i2c.o
 snd-soc-pcm512x-spi-objs := pcm512x-spi.o
@@ -298,6 +299,7 @@ obj-$(CONFIG_SND_SOC_PCM3008)	+= snd-soc-pcm3008.o
 obj-$(CONFIG_SND_SOC_PCM3168A)  += snd-soc-pcm3168a.o
 obj-$(CONFIG_SND_SOC_PCM3168A_I2C)      += snd-soc-pcm3168a-i2c.o
 obj-$(CONFIG_SND_SOC_PCM3168A_SPI)      += snd-soc-pcm3168a-spi.o
+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
diff --git a/sound/soc/codecs/pcm5102a.c b/sound/soc/codecs/pcm5102a.c
new file mode 100644
index 000000000000..ed515677409b
--- /dev/null
+++ b/sound/soc/codecs/pcm5102a.c
@@ -0,0 +1,69 @@
+/*
+ * Driver for the PCM5102A 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 pcm5102a_dai = {
+        .name = "pcm5102a-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 |
+                           SNDRV_PCM_FMTBIT_S32_LE
+        },
+};
+
+static struct snd_soc_codec_driver soc_codec_dev_pcm5102a;
+
+static int pcm5102a_probe(struct platform_device *pdev)
+{
+        return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_pcm5102a,
+                        &pcm5102a_dai, 1);
+}
+
+static int pcm5102a_remove(struct platform_device *pdev)
+{
+        snd_soc_unregister_codec(&pdev->dev);
+        return 0;
+}
+
+static const struct of_device_id pcm5102a_of_match[] = {
+        { .compatible = "ti,pcm5102a", },
+        { }
+};
+MODULE_DEVICE_TABLE(of, pcm5102a_of_match);
+
+static struct platform_driver pcm5102a_codec_driver = {
+        .probe          = pcm5102a_probe,
+        .remove         = pcm5102a_remove,
+        .driver         = {
+                .name   = "pcm5102a-codec",
+                .owner  = THIS_MODULE,
+                .of_match_table = pcm5102a_of_match,
+        },
+};
+
+module_platform_driver(pcm5102a_codec_driver);
+
+MODULE_DESCRIPTION("ASoC PCM5102A codec driver");
+MODULE_AUTHOR("Florian Meier <florian.meier@koalo.de>");
+MODULE_LICENSE("GPL v2");