[PATCH 4.4.y] ASoC: rsnd: src: add rsnd_src_halt()

[PATCH 4.4.y] ASoC: rsnd: src: add rsnd_src_halt()

[Nhan Nguyen]

From: thongsyho <thong.ho.px@rvc.renesas.com>

commit 475a361a6f2c7c690fd59a8f5224615e781cc3bd upstream.

Based on datasheet process

Cc: stable@vger.kernel.org
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>
---
 sound/soc/sh/rcar/src.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c
index 460d29c..8f2679c 100644
--- a/sound/soc/sh/rcar/src.c
+++ b/sound/soc/sh/rcar/src.c
@@ -132,6 +132,12 @@ static void __rsnd_src_initialize_lock(struct rsnd_mod *mod, u32 enable)
 	rsnd_mod_write(mod, SRC_SRCIR, enable);
 }
 
+static void rsnd_src_halt(struct rsnd_mod *mod)
+{
+	rsnd_mod_write(mod, SRC_SRCIR, 1);
+	rsnd_mod_write(mod, SRC_SWRSR, 0);
+}
+
 static struct dma_chan *rsnd_src_dma_req(struct rsnd_dai_stream *io,
 					 struct rsnd_mod *mod)
 {
@@ -373,6 +379,8 @@ static int rsnd_src_quit(struct rsnd_mod *mod,
 	struct rsnd_src *src = rsnd_mod_to_src(mod);
 	struct device *dev = rsnd_priv_to_dev(priv);
 
+	rsnd_src_halt(mod);
+
 	rsnd_mod_power_off(mod);
 
 	if (src->err)
-- 
1.9.1

Re: [PATCH 4.4.y] ASoC: rsnd: src: add rsnd_src_halt()

[Greg KH]

On Thu, Aug 24, 2017 at 03:17:59PM +0700, Nhan Nguyen wrote:
> From: thongsyho <thong.ho.px@rvc.renesas.com>
> 
> commit 475a361a6f2c7c690fd59a8f5224615e781cc3bd upstream.
> 
> Based on datasheet process
> 
> Cc: stable@vger.kernel.org
> 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>
> ---
>  sound/soc/sh/rcar/src.c | 8 ++++++++
>  1 file changed, 8 insertions(+)

Why are all of these "add rsnd_src_halt()" patches relevant for a stable
kernel?

thanks,

greg k-h

Re: [PATCH 4.4.y] ASoC: rsnd: src: add rsnd_src_halt()

[Nhan Ngoc. Nguyen]

Please ignore my patch! It add new feature.
Thanks!
On 8/28/2017 2:00 PM, Greg KH wrote:
> On Thu, Aug 24, 2017 at 03:17:59PM +0700, Nhan Nguyen wrote:
>> From: thongsyho <thong.ho.px@rvc.renesas.com>
>>
>> commit 475a361a6f2c7c690fd59a8f5224615e781cc3bd upstream.
>>
>> Based on datasheet process
>>
>> Cc: stable@vger.kernel.org
>> 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>
>> ---
>>   sound/soc/sh/rcar/src.c | 8 ++++++++
>>   1 file changed, 8 insertions(+)
> Why are all of these "add rsnd_src_halt()" patches relevant for a stable
> kernel?
>
> thanks,
>
> greg k-h