From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001
From: Yunhong Jiang <yunhong.jiang@intel.com>
Date: Tue, 4 Aug 2015 12:17:53 -0700
Subject: 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>
---
 kernel/sound/soc/spear/spear_pcm.c | 55 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 kernel/sound/soc/spear/spear_pcm.c

(limited to 'kernel/sound/soc/spear/spear_pcm.c')

diff --git a/kernel/sound/soc/spear/spear_pcm.c b/kernel/sound/soc/spear/spear_pcm.c
new file mode 100644
index 000000000..a7dc3c56f
--- /dev/null
+++ b/kernel/sound/soc/spear/spear_pcm.c
@@ -0,0 +1,55 @@
+/*
+ * ALSA PCM interface for ST SPEAr Processors
+ *
+ * sound/soc/spear/spear_pcm.c
+ *
+ * Copyright (C) 2012 ST Microelectronics
+ * Rajeev Kumar<rajeevkumar.linux@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/dmaengine.h>
+#include <linux/platform_device.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/spear_dma.h>
+#include "spear_pcm.h"
+
+static const struct snd_pcm_hardware spear_pcm_hardware = {
+	.info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
+		 SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
+	.buffer_bytes_max = 16 * 1024, /* max buffer size */
+	.period_bytes_min = 2 * 1024, /* 1 msec data minimum period size */
+	.period_bytes_max = 2 * 1024, /* maximum period size */
+	.periods_min = 1, /* min # periods */
+	.periods_max = 8, /* max # of periods */
+	.fifo_size = 0, /* fifo size in bytes */
+};
+
+static const struct snd_dmaengine_pcm_config spear_dmaengine_pcm_config = {
+	.pcm_hardware = &spear_pcm_hardware,
+	.prealloc_buffer_size = 16 * 1024,
+};
+
+int devm_spear_pcm_platform_register(struct device *dev,
+			struct snd_dmaengine_pcm_config *config,
+			bool (*filter)(struct dma_chan *chan, void *slave))
+{
+	*config = spear_dmaengine_pcm_config;
+	config->compat_filter_fn = filter;
+
+	return snd_dmaengine_pcm_register(dev, config,
+		SND_DMAENGINE_PCM_FLAG_NO_DT |
+		SND_DMAENGINE_PCM_FLAG_COMPAT);
+}
+EXPORT_SYMBOL_GPL(devm_spear_pcm_platform_register);
+
+MODULE_AUTHOR("Rajeev Kumar <rajeevkumar.linux@gmail.com>");
+MODULE_DESCRIPTION("SPEAr PCM DMA module");
+MODULE_LICENSE("GPL");
-- 
cgit 1.2.3-korg