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-rw-r--r--Documentation/devicetree/bindings/sound/arndale.txt24
-rw-r--r--sound/soc/samsung/Kconfig6
-rw-r--r--sound/soc/samsung/Makefile2
-rw-r--r--sound/soc/samsung/arndale_rt5631.c150
4 files changed, 182 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/arndale.txt b/Documentation/devicetree/bindings/sound/arndale.txt
new file mode 100644
index 000000000000..0e76946385ae
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/arndale.txt
@@ -0,0 +1,24 @@
+Audio Binding for Arndale boards
+
+Required properties:
+- compatible : Can be the following,
+ "samsung,arndale-rt5631"
+
+- samsung,audio-cpu: The phandle of the Samsung I2S controller
+- samsung,audio-codec: The phandle of the audio codec
+
+Optional:
+- samsung,model: The name of the sound-card
+
+Arndale Boards has many audio daughter cards, one of them is
+rt5631/alc5631. Below example shows audio bindings for rt5631/
+alc5631 based codec.
+
+Example:
+
+sound {
+ compatible = "samsung,arndale-rt5631";
+
+ samsung,audio-cpu = <&i2s0>
+ samsung,audio-codec = <&rt5631>;
+};
diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig
index e0e737faadd9..fc67f97f19f6 100644
--- a/sound/soc/samsung/Kconfig
+++ b/sound/soc/samsung/Kconfig
@@ -239,3 +239,9 @@ config SND_SOC_ODROIDX2
select SND_SAMSUNG_I2S
help
Say Y here to enable audio support for the Odroid-X2/U3.
+
+config SND_SOC_ARNDALE_RT5631_ALC5631
+ tristate "Audio support for RT5631(ALC5631) on Arndale Board"
+ depends on SND_SOC_SAMSUNG
+ select SND_SAMSUNG_I2S
+ select SND_SOC_RT5631
diff --git a/sound/soc/samsung/Makefile b/sound/soc/samsung/Makefile
index 91505ddaaf95..31e3dba7e3b5 100644
--- a/sound/soc/samsung/Makefile
+++ b/sound/soc/samsung/Makefile
@@ -45,6 +45,7 @@ snd-soc-lowland-objs := lowland.o
snd-soc-littlemill-objs := littlemill.o
snd-soc-bells-objs := bells.o
snd-soc-odroidx2-max98090-objs := odroidx2_max98090.o
+snd-soc-arndale-rt5631-objs := arndale_rt5631.o
obj-$(CONFIG_SND_SOC_SAMSUNG_JIVE_WM8750) += snd-soc-jive-wm8750.o
obj-$(CONFIG_SND_SOC_SAMSUNG_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o
@@ -71,3 +72,4 @@ obj-$(CONFIG_SND_SOC_LOWLAND) += snd-soc-lowland.o
obj-$(CONFIG_SND_SOC_LITTLEMILL) += snd-soc-littlemill.o
obj-$(CONFIG_SND_SOC_BELLS) += snd-soc-bells.o
obj-$(CONFIG_SND_SOC_ODROIDX2) += snd-soc-odroidx2-max98090.o
+obj-$(CONFIG_SND_SOC_ARNDALE_RT5631_ALC5631) += snd-soc-arndale-rt5631.o
diff --git a/sound/soc/samsung/arndale_rt5631.c b/sound/soc/samsung/arndale_rt5631.c
new file mode 100644
index 000000000000..1e2b61ca8db2
--- /dev/null
+++ b/sound/soc/samsung/arndale_rt5631.c
@@ -0,0 +1,150 @@
+/*
+ * arndale_rt5631.c
+ *
+ * Copyright (c) 2014, Insignal Co., Ltd.
+ *
+ * Author: Claude <claude@insginal.co.kr>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+
+#include "i2s.h"
+
+static int arndale_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 rfs, ret;
+ unsigned long rclk;
+
+ rfs = 256;
+
+ rclk = params_rate(params) * rfs;
+
+ ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK,
+ 0, SND_SOC_CLOCK_OUT);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_RCLKSRC_0,
+ 0, SND_SOC_CLOCK_OUT);
+
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, 0, rclk, SND_SOC_CLOCK_OUT);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static struct snd_soc_ops arndale_ops = {
+ .hw_params = arndale_hw_params,
+};
+
+static struct snd_soc_dai_link arndale_rt5631_dai[] = {
+ {
+ .name = "RT5631 HiFi",
+ .stream_name = "Primary",
+ .codec_dai_name = "rt5631-hifi",
+ .dai_fmt = SND_SOC_DAIFMT_I2S
+ | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBS_CFS,
+ .ops = &arndale_ops,
+ },
+};
+
+static struct snd_soc_card arndale_rt5631 = {
+ .name = "Arndale RT5631",
+ .dai_link = arndale_rt5631_dai,
+ .num_links = ARRAY_SIZE(arndale_rt5631_dai),
+};
+
+static int arndale_audio_probe(struct platform_device *pdev)
+{
+ int n, ret;
+ struct device_node *np = pdev->dev.of_node;
+ struct snd_soc_card *card = &arndale_rt5631;
+
+ card->dev = &pdev->dev;
+
+ for (n = 0; np && n < ARRAY_SIZE(arndale_rt5631_dai); n++) {
+ if (!arndale_rt5631_dai[n].cpu_dai_name) {
+ arndale_rt5631_dai[n].cpu_of_node = of_parse_phandle(np,
+ "samsung,audio-cpu", n);
+
+ if (!arndale_rt5631_dai[n].cpu_of_node) {
+ dev_err(&pdev->dev,
+ "Property 'samsung,audio-cpu' missing or invalid\n");
+ return -EINVAL;
+ }
+ }
+ if (!arndale_rt5631_dai[n].platform_name)
+ arndale_rt5631_dai[n].platform_of_node =
+ arndale_rt5631_dai[n].cpu_of_node;
+
+ arndale_rt5631_dai[n].codec_name = NULL;
+ arndale_rt5631_dai[n].codec_of_node = of_parse_phandle(np,
+ "samsung,audio-codec", n);
+ if (!arndale_rt5631_dai[0].codec_of_node) {
+ dev_err(&pdev->dev,
+ "Property 'samsung,audio-codec' missing or invalid\n");
+ return -EINVAL;
+ }
+ }
+
+ ret = devm_snd_soc_register_card(card->dev, card);
+
+ if (ret)
+ dev_err(&pdev->dev, "snd_soc_register_card() failed:%d\n", ret);
+
+ return ret;
+}
+
+static int arndale_audio_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ snd_soc_unregister_card(card);
+
+ return 0;
+}
+
+static const struct of_device_id samsung_arndale_rt5631_of_match[] __maybe_unused = {
+ { .compatible = "samsung,arndale-rt5631", },
+ { .compatible = "samsung,arndale-alc5631", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, samsung_arndale_rt5631_of_match);
+
+static struct platform_driver arndale_audio_driver = {
+ .driver = {
+ .name = "arndale-audio",
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ .of_match_table = of_match_ptr(samsung_arndale_rt5631_of_match),
+ },
+ .probe = arndale_audio_probe,
+ .remove = arndale_audio_remove,
+};
+
+module_platform_driver(arndale_audio_driver);
+
+MODULE_AUTHOR("Claude <claude@insignal.co.kr>");
+MODULE_DESCRIPTION("ALSA SoC Driver for Arndale Board");
+MODULE_LICENSE("GPL");