Patch "ASoC: rsnd: disable SRC.out only when stop timing" has been added to the 4.4-stable tree

Patch "ASoC: rsnd: disable SRC.out only when stop timing" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    ASoC: rsnd: disable SRC.out only when stop timing

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     asoc-rsnd-disable-src.out-only-when-stop-timing.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From b761bf272bce6dff4d8a7ccf4385c9f3d4018094 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 26 Oct 2015 08:40:59 +0000
Subject: ASoC: rsnd: disable SRC.out only when stop timing

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

commit b761bf272bce6dff4d8a7ccf4385c9f3d4018094 upstream.

Because SRC is connected to DMA and DMA want to keep dreq when stop
timing. This patch makes SRC stop SRC.out only when stop timing. And
it stops both SRC.out/SRC.in when quit timing

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Thong Ho <thong.ho.px@rvc.renesas.com>
Signed-off-by: Nhan Nguyen <nhan.nguyen.yb@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>


---
 sound/soc/sh/rcar/src.c |   18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

--- a/sound/soc/sh/rcar/src.c
+++ b/sound/soc/sh/rcar/src.c
@@ -691,13 +691,27 @@ static int _rsnd_src_stop_gen2(struct rs
 {
 	rsnd_src_irq_disable_gen2(mod);
 
-	rsnd_mod_write(mod, SRC_CTRL, 0);
+	/*
+	 * stop SRC output only
+	 * see rsnd_src_quit_gen2
+	 */
+	rsnd_mod_write(mod, SRC_CTRL, 0x01);
 
 	rsnd_src_error_record_gen2(mod);
 
 	return rsnd_src_stop(mod);
 }
 
+static int rsnd_src_quit_gen2(struct rsnd_mod *mod,
+			      struct rsnd_dai_stream *io,
+			      struct rsnd_priv *priv)
+{
+	/* stop both out/in */
+	rsnd_mod_write(mod, SRC_CTRL, 0);
+
+	return 0;
+}
+
 static void __rsnd_src_interrupt_gen2(struct rsnd_mod *mod,
 				      struct rsnd_dai_stream *io)
 {
@@ -971,7 +985,7 @@ static struct rsnd_mod_ops rsnd_src_gen2
 	.probe	= rsnd_src_probe_gen2,
 	.remove	= rsnd_src_remove_gen2,
 	.init	= rsnd_src_init_gen2,
-	.quit	= rsnd_src_quit,
+	.quit	= rsnd_src_quit_gen2,
 	.start	= rsnd_src_start_gen2,
 	.stop	= rsnd_src_stop_gen2,
 	.hw_params = rsnd_src_hw_params,


Patches currently in stable-queue which might be from kuninori.morimoto.gx@renesas.com are

queue-4.4/asoc-rsnd-disable-src.out-only-when-stop-timing.patch