From c926b746055adfd915936c67244e635e9c7a3d84 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Thu, 23 Jan 2014 18:40:41 -0800
Subject: [PATCH] ASoC: rsnd: clarify scu.c area

scu.c cares SRU(Gen1) / SCU(Gen2) / SSIU(Gen2)

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/rcar/scu.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/sound/soc/sh/rcar/scu.c b/sound/soc/sh/rcar/scu.c
index 076aa71bc102..1adc85825f4e 100644
--- a/sound/soc/sh/rcar/scu.c
+++ b/sound/soc/sh/rcar/scu.c
@@ -40,6 +40,20 @@ struct rsnd_scu {
  *
  */
 
+/*
+ * scu.c is caring...
+ *
+ * Gen1
+ *
+ * [mem] -> [SRU] -> [SSI]
+ *        |--------|
+ *
+ * Gen2
+ *
+ * [mem] -> [SCU] -> [SSIU] -> [SSI]
+ *        |-----------------|
+ */
+
 /*
  *	How to use SRC bypass mode for debugging
  *
-- 
2.30.2