* [PATCH] ASoC: simple-card: cpu_dai_name creates confusion when DT case
@ 2014-02-25 6:06 Kuninori Morimoto
2014-02-27 5:07 ` Mark Brown
0 siblings, 1 reply; 7+ messages in thread
From: Kuninori Morimoto @ 2014-02-25 6:06 UTC (permalink / raw)
To: Mark Brown
Cc: Linux-ALSA, Simon, Liam Girdwood, Kuninori Morimoto, Kuninori Morimoto
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Basically, soc_bind_dai_link() checks
cpu_dai->dev->of_node and dai_link->cpu_of_node in DT case.
But after that it will check
cpu_dai->name and dai_link->cpu_dai_name too.
On the other hand, snd_soc_dai :: name is created by
fmt_single_name() or fmt_multiple_name().
There is no confusion if dai name is created by fmt_multiple_name(),
since cpu_dai->name is same as dai_link->cpu_dai_name.
but, if dai name is created by fmt_single_name(), CPU DAI never match.
Thus, simple-card not set dai_link->cpu_dai_name if DT case
to skip naming match on soc_bind_dai_link()
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
sound/soc/generic/simple-card.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 2a1b1b5..4a0e06e 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -242,7 +242,8 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
*/
cinfo->snd_link.name = cinfo->name;
cinfo->snd_link.stream_name = cinfo->name;
- cinfo->snd_link.cpu_dai_name = cinfo->cpu_dai.name;
+ if (!of_cpu)
+ cinfo->snd_link.cpu_dai_name = cinfo->cpu_dai.name;
cinfo->snd_link.platform_name = cinfo->platform;
cinfo->snd_link.codec_name = cinfo->codec;
cinfo->snd_link.codec_dai_name = cinfo->codec_dai.name;
--
1.7.9.5
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH] ASoC: simple-card: cpu_dai_name creates confusion when DT case
2014-02-25 6:06 [PATCH] ASoC: simple-card: cpu_dai_name creates confusion when DT case Kuninori Morimoto
@ 2014-02-27 5:07 ` Mark Brown
2014-02-27 10:21 ` Kuninori Morimoto
0 siblings, 1 reply; 7+ messages in thread
From: Mark Brown @ 2014-02-27 5:07 UTC (permalink / raw)
To: Kuninori Morimoto; +Cc: Linux-ALSA, Simon, Liam Girdwood, Kuninori Morimoto
[-- Attachment #1.1: Type: text/plain, Size: 594 bytes --]
On Mon, Feb 24, 2014 at 10:06:09PM -0800, Kuninori Morimoto wrote:
> From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
>
> Basically, soc_bind_dai_link() checks
> cpu_dai->dev->of_node and dai_link->cpu_of_node in DT case.
> But after that it will check
> cpu_dai->name and dai_link->cpu_dai_name too.
>
> On the other hand, snd_soc_dai :: name is created by
> fmt_single_name() or fmt_multiple_name().
This looks like a valid issue which still affects current code but it
doesn't apply due changes on the latest topic/simple branch. Can you
please check and resend?
[-- Attachment #1.2: Digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]
[-- Attachment #2: Type: text/plain, Size: 0 bytes --]
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] ASoC: simple-card: cpu_dai_name creates confusion when DT case
2014-02-27 5:07 ` Mark Brown
@ 2014-02-27 10:21 ` Kuninori Morimoto
2014-02-28 2:25 ` [PATCH v2] " Kuninori Morimoto
0 siblings, 1 reply; 7+ messages in thread
From: Kuninori Morimoto @ 2014-02-27 10:21 UTC (permalink / raw)
To: Mark Brown; +Cc: Linux-ALSA, Simon, Liam Girdwood, Kuninori Morimoto
Hi Mark
> > Basically, soc_bind_dai_link() checks
> > cpu_dai->dev->of_node and dai_link->cpu_of_node in DT case.
> > But after that it will check
> > cpu_dai->name and dai_link->cpu_dai_name too.
> >
> > On the other hand, snd_soc_dai :: name is created by
> > fmt_single_name() or fmt_multiple_name().
>
> This looks like a valid issue which still affects current code but it
> doesn't apply due changes on the latest topic/simple branch. Can you
> please check and resend?
OK
I will send it again tomorrow.
Thank you
^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH v2] ASoC: simple-card: cpu_dai_name creates confusion when DT case
2014-02-27 10:21 ` Kuninori Morimoto
@ 2014-02-28 2:25 ` Kuninori Morimoto
2014-02-28 3:53 ` Mark Brown
0 siblings, 1 reply; 7+ messages in thread
From: Kuninori Morimoto @ 2014-02-28 2:25 UTC (permalink / raw)
To: Mark Brown; +Cc: Linux-ALSA, Simon, Liam Girdwood, Kuninori Morimoto
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Basically, soc_bind_dai_link() checks
cpu_dai->dev->of_node and dai_link->cpu_of_node in DT case.
But after that it will check
cpu_dai->name and dai_link->cpu_dai_name too.
On the other hand, snd_soc_dai :: name is created by
fmt_single_name() or fmt_multiple_name().
There is no confusion if dai name is created by fmt_multiple_name(),
since cpu_dai->name is same as dai_link->cpu_dai_name.
but, if dai name is created by fmt_single_name(), CPU DAI never match.
Thus, simple-card not set dai_link->cpu_dai_name if DT case
to skip naming match on soc_bind_dai_link()
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
v1 -> v2
- for latest mark/topic/simple branch
sound/soc/generic/simple-card.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index bdd176d..034a2b7 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -234,6 +234,17 @@ static int asoc_simple_card_parse_of(struct device_node *node,
priv->codec_dai.fmt,
priv->codec_dai.sysclk);
+ /*
+ * soc_bind_dai_link() will check cpu name
+ * after of_node matching if dai_link has cpu_dai_name.
+ * but, it will never match if name was created by fmt_single_name()
+ * remove cpu_dai_name to escape name matching.
+ * see
+ * fmt_single_name()
+ * fmt_multiple_name()
+ */
+ dai_link->cpu_dai_name = NULL;
+
return 0;
}
--
1.7.9.5
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH v2] ASoC: simple-card: cpu_dai_name creates confusion when DT case
2014-02-28 2:25 ` [PATCH v2] " Kuninori Morimoto
@ 2014-02-28 3:53 ` Mark Brown
2014-02-28 4:31 ` Kuninori Morimoto
0 siblings, 1 reply; 7+ messages in thread
From: Mark Brown @ 2014-02-28 3:53 UTC (permalink / raw)
To: Kuninori Morimoto; +Cc: Linux-ALSA, Simon, Liam Girdwood, Kuninori Morimoto
[-- Attachment #1.1: Type: text/plain, Size: 265 bytes --]
On Thu, Feb 27, 2014 at 06:25:24PM -0800, Kuninori Morimoto wrote:
> + * see
> + * fmt_single_name()
> + * fmt_multiple_name()
> + */
> + dai_link->cpu_dai_name = NULL;
> +
Why do this by overwriting rather than at the point where the variable
gets assigned?
[-- Attachment #1.2: Digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]
[-- Attachment #2: Type: text/plain, Size: 0 bytes --]
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] ASoC: simple-card: cpu_dai_name creates confusion when DT case
2014-02-28 3:53 ` Mark Brown
@ 2014-02-28 4:31 ` Kuninori Morimoto
2014-02-28 5:25 ` Mark Brown
0 siblings, 1 reply; 7+ messages in thread
From: Kuninori Morimoto @ 2014-02-28 4:31 UTC (permalink / raw)
To: Mark Brown; +Cc: Linux-ALSA, Simon, Liam Girdwood, Kuninori Morimoto
Hi Mark
> > + * see
> > + * fmt_single_name()
> > + * fmt_multiple_name()
> > + */
> > + dai_link->cpu_dai_name = NULL;
> > +
>
> Why do this by overwriting rather than at the point where the variable
> gets assigned?
Do you mean why I did it end of asoc_simple_card_parse_of() ?
Because this cpu_dai_name itself is used for
dai_link->name, dai_link->stream_name;
This patch set NULL after that.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH v2] ASoC: simple-card: cpu_dai_name creates confusion when DT case
2014-02-28 4:31 ` Kuninori Morimoto
@ 2014-02-28 5:25 ` Mark Brown
0 siblings, 0 replies; 7+ messages in thread
From: Mark Brown @ 2014-02-28 5:25 UTC (permalink / raw)
To: Kuninori Morimoto; +Cc: Linux-ALSA, Simon, Liam Girdwood, Kuninori Morimoto
[-- Attachment #1.1: Type: text/plain, Size: 290 bytes --]
On Thu, Feb 27, 2014 at 08:31:45PM -0800, Kuninori Morimoto wrote:
> Do you mean why I did it end of asoc_simple_card_parse_of() ?
> Because this cpu_dai_name itself is used for
> dai_link->name, dai_link->stream_name;
> This patch set NULL after that.
OK, makes sense. Applied, thanks.
[-- Attachment #1.2: Digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]
[-- Attachment #2: Type: text/plain, Size: 0 bytes --]
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2014-02-28 5:25 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-02-25 6:06 [PATCH] ASoC: simple-card: cpu_dai_name creates confusion when DT case Kuninori Morimoto
2014-02-27 5:07 ` Mark Brown
2014-02-27 10:21 ` Kuninori Morimoto
2014-02-28 2:25 ` [PATCH v2] " Kuninori Morimoto
2014-02-28 3:53 ` Mark Brown
2014-02-28 4:31 ` Kuninori Morimoto
2014-02-28 5:25 ` Mark Brown
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).