Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 205 insertions, 0 deletions

diff --git a/kernel/sound/soc/samsung/lowland.c b/kernel/sound/soc/samsung/lowland.c
new file mode 100644
index 000000000..5f1560931
--- /dev/null
+++ b/kernel/sound/soc/samsung/lowland.c
@@ -0,0 +1,205 @@
+/*
+ * Lowland audio support
+ *
+ * Copyright 2011 Wolfson Microelectronics
+ *
+ * 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 <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/jack.h>
+#include <linux/gpio.h>
+#include <linux/module.h>
+
+#include "../codecs/wm5100.h"
+#include "../codecs/wm9081.h"
+
+#define MCLK1_RATE (44100 * 512)
+#define CLKOUT_RATE (44100 * 256)
+
+static struct snd_soc_jack lowland_headset;
+
+/* Headset jack detection DAPM pins */
+static struct snd_soc_jack_pin lowland_headset_pins[] = {
+	{
+		.pin = "Headphone",
+		.mask = SND_JACK_HEADPHONE | SND_JACK_LINEOUT,
+	},
+	{
+		.pin = "Headset Mic",
+		.mask = SND_JACK_MICROPHONE,
+	},
+};
+
+static int lowland_wm5100_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_codec *codec = rtd->codec;
+	int ret;
+
+	ret = snd_soc_codec_set_sysclk(codec, WM5100_CLK_SYSCLK,
+				       WM5100_CLKSRC_MCLK1, MCLK1_RATE,
+				       SND_SOC_CLOCK_IN);
+	if (ret < 0) {
+		pr_err("Failed to set SYSCLK clock source: %d\n", ret);
+		return ret;
+	}
+
+	/* Clock OPCLK, used by the other audio components. */
+	ret = snd_soc_codec_set_sysclk(codec, WM5100_CLK_OPCLK, 0,
+				       CLKOUT_RATE, 0);
+	if (ret < 0) {
+		pr_err("Failed to set OPCLK rate: %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_card_jack_new(rtd->card, "Headset", SND_JACK_LINEOUT |
+				    SND_JACK_HEADSET | SND_JACK_BTN_0,
+				    &lowland_headset, lowland_headset_pins,
+				    ARRAY_SIZE(lowland_headset_pins));
+	if (ret)
+		return ret;
+
+	wm5100_detect(codec, &lowland_headset);
+
+	return 0;
+}
+
+static int lowland_wm9081_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_codec *codec = rtd->codec;
+
+	snd_soc_dapm_nc_pin(&codec->dapm, "LINEOUT");
+
+	/* At any time the WM9081 is active it will have this clock */
+	return snd_soc_codec_set_sysclk(codec, WM9081_SYSCLK_MCLK, 0,
+					CLKOUT_RATE, 0);
+}
+
+static const struct snd_soc_pcm_stream sub_params = {
+	.formats = SNDRV_PCM_FMTBIT_S32_LE,
+	.rate_min = 44100,
+	.rate_max = 44100,
+	.channels_min = 2,
+	.channels_max = 2,
+};
+
+static struct snd_soc_dai_link lowland_dai[] = {
+	{
+		.name = "CPU",
+		.stream_name = "CPU",
+		.cpu_dai_name = "samsung-i2s.0",
+		.codec_dai_name = "wm5100-aif1",
+		.platform_name = "samsung-i2s.0",
+		.codec_name = "wm5100.1-001a",
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+				SND_SOC_DAIFMT_CBM_CFM,
+		.init = lowland_wm5100_init,
+	},
+	{
+		.name = "Baseband",
+		.stream_name = "Baseband",
+		.cpu_dai_name = "wm5100-aif2",
+		.codec_dai_name = "wm1250-ev1",
+		.codec_name = "wm1250-ev1.1-0027",
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+				SND_SOC_DAIFMT_CBM_CFM,
+		.ignore_suspend = 1,
+	},
+	{
+		.name = "Sub Speaker",
+		.stream_name = "Sub Speaker",
+		.cpu_dai_name = "wm5100-aif3",
+		.codec_dai_name = "wm9081-hifi",
+		.codec_name = "wm9081.1-006c",
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+				SND_SOC_DAIFMT_CBM_CFM,
+		.ignore_suspend = 1,
+		.params = &sub_params,
+		.init = lowland_wm9081_init,
+	},
+};
+
+static struct snd_soc_codec_conf lowland_codec_conf[] = {
+	{
+		.dev_name = "wm9081.1-006c",
+		.name_prefix = "Sub",
+	},
+};
+
+static const struct snd_kcontrol_new controls[] = {
+	SOC_DAPM_PIN_SWITCH("Main Speaker"),
+	SOC_DAPM_PIN_SWITCH("Main DMIC"),
+	SOC_DAPM_PIN_SWITCH("Main AMIC"),
+	SOC_DAPM_PIN_SWITCH("WM1250 Input"),
+	SOC_DAPM_PIN_SWITCH("WM1250 Output"),
+	SOC_DAPM_PIN_SWITCH("Headphone"),
+};
+
+static struct snd_soc_dapm_widget widgets[] = {
+	SND_SOC_DAPM_HP("Headphone", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+
+	SND_SOC_DAPM_SPK("Main Speaker", NULL),
+
+	SND_SOC_DAPM_MIC("Main AMIC", NULL),
+	SND_SOC_DAPM_MIC("Main DMIC", NULL),
+};
+
+static struct snd_soc_dapm_route audio_paths[] = {
+	{ "Sub IN1", NULL, "HPOUT2L" },
+	{ "Sub IN2", NULL, "HPOUT2R" },
+
+	{ "Main Speaker", NULL, "Sub SPKN" },
+	{ "Main Speaker", NULL, "Sub SPKP" },
+	{ "Main Speaker", NULL, "SPKDAT1" },
+};
+
+static struct snd_soc_card lowland = {
+	.name = "Lowland",
+	.owner = THIS_MODULE,
+	.dai_link = lowland_dai,
+	.num_links = ARRAY_SIZE(lowland_dai),
+	.codec_conf = lowland_codec_conf,
+	.num_configs = ARRAY_SIZE(lowland_codec_conf),
+
+	.controls = controls,
+	.num_controls = ARRAY_SIZE(controls),
+	.dapm_widgets = widgets,
+	.num_dapm_widgets = ARRAY_SIZE(widgets),
+	.dapm_routes = audio_paths,
+	.num_dapm_routes = ARRAY_SIZE(audio_paths),
+};
+
+static int lowland_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = &lowland;
+	int ret;
+
+	card->dev = &pdev->dev;
+
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+	if (ret)
+		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+			ret);
+
+	return ret;
+}
+
+static struct platform_driver lowland_driver = {
+	.driver = {
+		.name = "lowland",
+		.pm = &snd_soc_pm_ops,
+	},
+	.probe = lowland_probe,
+};
+
+module_platform_driver(lowland_driver);
+
+MODULE_DESCRIPTION("Lowland audio support");
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:lowland");