[alsa-devel] Applied "ASoC: rsnd: judge multi SSI in runtime" to the asoc tree

[Mark Brown]

The patch

   ASoC: rsnd: judge multi SSI in runtime

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 4f5c634d58e71963d3c34a0a4af9ec71785f094f Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Date: Thu, 18 Feb 2016 08:18:54 +0000
Subject: [PATCH] ASoC: rsnd: judge multi SSI in runtime

Current rsnd supports multi SSI (maximum 4 SSI for 8ch),
and, it should determine whether using each SSI or not in runtime.
Current judgement is vague, and had broken by
c308abe45e2("ASoC: rsnd: rsnd_ssi_is_multi_slave() macro uses
rsnd_ssi_multi_slaves()")
This patch makes clean it, and solve this issue.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Signed-off-by: Mark Brown <broonie at kernel.org>
---
 sound/soc/sh/rcar/core.c |  2 +-
 sound/soc/sh/rcar/rsnd.h |  2 +-
 sound/soc/sh/rcar/ssi.c  | 15 +++++++++++++--
 sound/soc/sh/rcar/ssiu.c |  6 +++---
 4 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index f86d627..7bc5b72 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -230,7 +230,7 @@ int rsnd_get_slot_width(struct rsnd_dai_stream *io)
 	int chan = runtime->channels;
 
 	/* Multi channel Mode */
-	if (rsnd_ssi_multi_slaves(io))
+	if (rsnd_ssi_multi_slaves_runtime(io))
 		chan /= rsnd_get_slot_num(io);
 
 	/* TDM Extend Mode needs 8ch */
diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
index 61cb4ae..5f613eb 100644
--- a/sound/soc/sh/rcar/rsnd.h
+++ b/sound/soc/sh/rcar/rsnd.h
@@ -599,7 +599,7 @@ void rsnd_ssi_remove(struct rsnd_priv *priv);
 struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id);
 int rsnd_ssi_is_dma_mode(struct rsnd_mod *mod);
 int rsnd_ssi_use_busif(struct rsnd_dai_stream *io);
-u32 rsnd_ssi_multi_slaves(struct rsnd_dai_stream *io);
+u32 rsnd_ssi_multi_slaves_runtime(struct rsnd_dai_stream *io);
 
 #define rsnd_ssi_is_pin_sharing(io)	\
 	__rsnd_ssi_is_pin_sharing(rsnd_io_to_mod_ssi(io))
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index d46bc08..32f1f5f 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -144,7 +144,7 @@ static void rsnd_ssi_status_check(struct rsnd_mod *mod,
 		 rsnd_mod_name(mod), rsnd_mod_id(mod));
 }
 
-u32 rsnd_ssi_multi_slaves(struct rsnd_dai_stream *io)
+static u32 rsnd_ssi_multi_slaves(struct rsnd_dai_stream *io)
 {
 	struct rsnd_mod *mod;
 	enum rsnd_mod_type types[] = {
@@ -166,6 +166,17 @@ u32 rsnd_ssi_multi_slaves(struct rsnd_dai_stream *io)
 	return mask;
 }
 
+u32 rsnd_ssi_multi_slaves_runtime(struct rsnd_dai_stream *io)
+{
+	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
+	u32 mask = rsnd_ssi_multi_slaves(io);
+
+	if (mask && (runtime->channels >= 6))
+		return mask;
+
+	return 0;
+}
+
 static int rsnd_ssi_master_clk_start(struct rsnd_mod *mod,
 				     struct rsnd_dai_stream *io)
 {
@@ -415,7 +426,7 @@ static int rsnd_ssi_start(struct rsnd_mod *mod,
 	 * EN will be set via SSIU :: SSI_CONTROL
 	 * if Multi channel mode
 	 */
-	if (rsnd_ssi_multi_slaves(io))
+	if (rsnd_ssi_multi_slaves_runtime(io))
 		return 0;
 
 	rsnd_mod_bset(mod, SSICR, EN, EN);
diff --git a/sound/soc/sh/rcar/ssiu.c b/sound/soc/sh/rcar/ssiu.c
index 11e5588..1b8ea0e 100644
--- a/sound/soc/sh/rcar/ssiu.c
+++ b/sound/soc/sh/rcar/ssiu.c
@@ -27,7 +27,7 @@ static int rsnd_ssiu_init(struct rsnd_mod *mod,
 			  struct rsnd_priv *priv)
 {
 	struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
-	u32 multi_ssi_slaves = rsnd_ssi_multi_slaves(io);
+	u32 multi_ssi_slaves = rsnd_ssi_multi_slaves_runtime(io);
 	int use_busif = rsnd_ssi_use_busif(io);
 	int id = rsnd_mod_id(mod);
 	u32 mask1, val1;
@@ -136,7 +136,7 @@ static int rsnd_ssiu_start_gen2(struct rsnd_mod *mod,
 
 	rsnd_mod_write(mod, SSI_CTRL, 0x1);
 
-	if (rsnd_ssi_multi_slaves(io))
+	if (rsnd_ssi_multi_slaves_runtime(io))
 		rsnd_mod_write(mod, SSI_CONTROL, 0x1);
 
 	return 0;
@@ -151,7 +151,7 @@ static int rsnd_ssiu_stop_gen2(struct rsnd_mod *mod,
 
 	rsnd_mod_write(mod, SSI_CTRL, 0);
 
-	if (rsnd_ssi_multi_slaves(io))
+	if (rsnd_ssi_multi_slaves_runtime(io))
 		rsnd_mod_write(mod, SSI_CONTROL, 0);
 
 	return 0;
-- 
2.7.0