[alsa-devel] [REPOST][PATCH v4 3/4] ASoC: SAMSUNG: Modify I2S driver to support idma

[Sangbeom Kim]

Previously, I2S driver only can support system dma.
In this patch, i2s driver can support internal dma too.
IDMA h/w configuration is initialized on idma.c

Signed-off-by: Sangbeom Kim <sbkim73 at samsung.com>
Acked-by: Liam Girdwood <lrg at ti.com>
---
As Mark brown request, I repost i2s v4 patch

 sound/soc/samsung/i2s.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index 1568eea..c086b78 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -21,6 +21,7 @@
 #include <plat/audio.h>
 
 #include "dma.h"
+#include "idma.h"
 #include "i2s.h"
 #include "i2s-regs.h"
 
@@ -60,6 +61,7 @@ struct i2s_dai {
 	/* DMA parameters */
 	struct s3c_dma_params dma_playback;
 	struct s3c_dma_params dma_capture;
+	struct s3c_dma_params idma_playback;
 	u32	quirks;
 	u32	suspend_i2smod;
 	u32	suspend_i2scon;
@@ -877,6 +879,10 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
 	if (i2s->quirks & QUIRK_NEED_RSTCLR)
 		writel(CON_RSTCLR, i2s->addr + I2SCON);
 
+	if (i2s->quirks & QUIRK_SEC_DAI)
+		idma_reg_addr_init((void *)i2s->addr,
+					i2s->sec_dai->idma_playback.dma_addr);
+
 probe_exit:
 	/* Reset any constraint on RFS and BFS */
 	i2s->rfs = 0;
@@ -1077,6 +1083,7 @@ static __devinit int samsung_i2s_probe(struct platform_device *pdev)
 		sec_dai->dma_playback.dma_size = 4;
 		sec_dai->base = regs_base;
 		sec_dai->quirks = quirks;
+		sec_dai->idma_playback.dma_addr = i2s_cfg->idma_addr;
 		sec_dai->pri_dai = pri_dai;
 		pri_dai->sec_dai = sec_dai;
 	}
-- 
1.7.1