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, 86 insertions, 0 deletions

diff --git a/kernel/sound/soc/sirf/sirf-audio-port.c b/kernel/sound/soc/sirf/sirf-audio-port.c
new file mode 100644
index 000000000..3f2cce032
--- /dev/null
+++ b/kernel/sound/soc/sirf/sirf-audio-port.c
@@ -0,0 +1,86 @@
+/*
+ * SiRF Audio port driver
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+#include <linux/module.h>
+#include <sound/soc.h>
+#include <sound/dmaengine_pcm.h>
+
+struct sirf_audio_port {
+	struct regmap *regmap;
+	struct snd_dmaengine_dai_dma_data playback_dma_data;
+	struct snd_dmaengine_dai_dma_data capture_dma_data;
+};
+
+
+static int sirf_audio_port_dai_probe(struct snd_soc_dai *dai)
+{
+	struct sirf_audio_port *port = snd_soc_dai_get_drvdata(dai);
+	snd_soc_dai_init_dma_data(dai, &port->playback_dma_data,
+			&port->capture_dma_data);
+	return 0;
+}
+
+static struct snd_soc_dai_driver sirf_audio_port_dai = {
+	.probe = sirf_audio_port_dai_probe,
+	.name = "sirf-audio-port",
+	.id = 0,
+	.playback = {
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	},
+	.capture = {
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	},
+};
+
+static const struct snd_soc_component_driver sirf_audio_port_component = {
+	.name       = "sirf-audio-port",
+};
+
+static int sirf_audio_port_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct sirf_audio_port *port;
+
+	port = devm_kzalloc(&pdev->dev,
+			sizeof(struct sirf_audio_port), GFP_KERNEL);
+	if (!port)
+		return -ENOMEM;
+
+	ret = devm_snd_soc_register_component(&pdev->dev,
+			&sirf_audio_port_component, &sirf_audio_port_dai, 1);
+	if (ret)
+		return ret;
+
+	platform_set_drvdata(pdev, port);
+	return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
+}
+
+static const struct of_device_id sirf_audio_port_of_match[] = {
+	{ .compatible = "sirf,audio-port", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, sirf_audio_port_of_match);
+
+static struct platform_driver sirf_audio_port_driver = {
+	.driver = {
+		.name = "sirf-audio-port",
+		.of_match_table = sirf_audio_port_of_match,
+	},
+	.probe = sirf_audio_port_probe,
+};
+
+module_platform_driver(sirf_audio_port_driver);
+
+MODULE_DESCRIPTION("SiRF Audio Port driver");
+MODULE_AUTHOR("RongJun Ying <Rongjun.Ying@csr.com>");
+MODULE_LICENSE("GPL v2");