msm: 8660: audio: HDMI: Fix the HDMI DMA stop issue

LPA_IF dma channel is disabled without checking the per count value.
Because of this dma channel is not functional after few iterations
of continuous playback. Fix this issue by checking the dma per count
value to stop before disabling the LPA_IF dma channel.

Change-Id: Ie9e9a9337ca2c4b76cebd99cd3eb98137be85b89
Signed-off-by: Deepa Madiregama <dmadireg@codeaurora.org>

Conflicts:

	arch/arm/mach-msm/include/mach/msm_hdmi_audio.h
	arch/arm/mach-msm/qdsp6v2/lpa_if_hdmi.c
	arch/arm/mach-msm/qdsp6v2/snddev_hdmi.c
	drivers/video/msm/hdmi_msm.c
	include/sound/dai.h
	sound/soc/msm/lpass-dma.c

arch/arm/mach-msm/include/mach/audio_dma_msm8k.h

@@ -1,4 +1,4 @@
-/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
+/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -218,6 +218,11 @@
 #define LPAIF_DMA_SET_BUFF_CNT(x)	DMA_CTRL_ADDR(x, 0x20)
 #define	LPAIF_DMA_SET_PER_CNT(x)	DMA_CTRL_ADDR(x, 0x24)
 
+#define LPAIF_DMA_PER_CNT_PER_CNT_MASK		0x000FFFFF
+#define LPAIF_DMA_PER_CNT_PER_CNT_SHIFT		0
+#define LPAIF_DMA_PER_CNT_FIFO_WORDCNT_MASK	0x00F00000
+#define LPAIF_DMA_PER_CNT_FIFO_WORDCNT_SHIFT	20
+
 /* channel assignments */
 
 #define DMA_CH_0		0

arch/arm/mach-msm/include/mach/msm_hdmi_audio.h

@@ -0,0 +1,19 @@
+/* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only 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.
+ */
+
+#ifndef __MSM_HDMI_AUDIO_H
+#define __MSM_HDMI_AUDIO_H
+
+int hdmi_audio_enable(bool on , u32 fifo_water_mark);
+int hdmi_audio_packet_enable(bool on);
+
+#endif /* __MSM_HDMI_AUDIO_H*/