patches.renesas/0121-ASoC-rsnd-add-common-interrupt-handler-for-SSI-SRC-D.patch

From 8fee8ad26cbd2382a06df16671aa03ee53082d9d Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 15 Jun 2015 06:25:48 +0000
Subject: [PATCH 121/129] ASoC: rsnd: add common interrupt handler for
 SSI/SRC/DMA

Each Renesas sound mod (= SSI/SRC/DVC) might be called from many paths
if it supports MIXer. In such case, mod <-> io is no longer 1:1
relationship. Then, interrupt handler can't use rsnd_mod_to_io().
This patch adds SSI/SRC/DMA common interrupt handler frame

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
(cherry picked from commit f501b7a4e7ceb76a5d24cc0f75403072af5e85a0)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 sound/soc/sh/rcar/core.c | 23 +++++++++++++++++++++++
 sound/soc/sh/rcar/rsnd.h |  3 +++
 2 files changed, 26 insertions(+)

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 54297d74ea1f..424d1a31c471 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -172,6 +172,29 @@ void rsnd_mod_quit(struct rsnd_mod *mod)
 		clk_unprepare(mod->clk);
 }
 
+void rsnd_mod_interrupt(struct rsnd_mod *mod,
+			void (*callback)(struct rsnd_mod *mod,
+					 struct rsnd_dai_stream *io))
+{
+	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+	struct rsnd_dai_stream *io;
+	struct rsnd_dai *rdai;
+	int i, j;
+
+	for_each_rsnd_dai(rdai, priv, j) {
+
+		for (i = 0; i < RSND_MOD_MAX; i++) {
+			io = &rdai->playback;
+			if (mod == io->mod[i])
+				callback(mod, io);
+
+			io = &rdai->capture;
+			if (mod == io->mod[i])
+				callback(mod, io);
+		}
+	}
+}
+
 int rsnd_mod_is_working(struct rsnd_mod *mod)
 {
 	struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
index fd93a6a25749..e6aad5e05fad 100644
--- a/sound/soc/sh/rcar/rsnd.h
+++ b/sound/soc/sh/rcar/rsnd.h
@@ -327,6 +327,9 @@ void rsnd_mod_quit(struct rsnd_mod *mod);
 char *rsnd_mod_name(struct rsnd_mod *mod);
 int rsnd_mod_is_working(struct rsnd_mod *mod);
 struct dma_chan *rsnd_mod_dma_req(struct rsnd_mod *mod);
+void rsnd_mod_interrupt(struct rsnd_mod *mod,
+			void (*callback)(struct rsnd_mod *mod,
+					 struct rsnd_dai_stream *io));
 
 /*
  *	R-Car sound DAI
-- 
2.6.2