Dne Út 21. července 2009 22:59:35 Takashi Iwai napsal(a):
> At Tue, 21 Jul 2009 22:24:21 +0200,
>
> Marek Vasut wrote:
> > From 082f09b9f3c1bbf3240610dc89baba33d47787b7 Mon Sep 17 00:00:00 2001
> > From: Marek Vasut <marek.vasut@xxxxxxxxx>
> > Date: Tue, 21 Jul 2009 16:22:29 +0200
> > Subject: [PATCH 1/5] Allow passing platform_data to devices attached to
> > AC97 bus
> >
> > This patch allows passing platform_data to devices attached to AC97 bus
> > (like touchscreens, battery measurement chips ...).
> >
> > Signed-off-by: Marek Vasut <marek.vasut@xxxxxxxxx>
> > ---
> > include/sound/ac97_codec.h | 6 ++++++
> > include/sound/soc-dai.h | 1 +
> > sound/soc/soc-core.c | 5 ++++-
> > 3 files changed, 11 insertions(+), 1 deletions(-)
> >
> > diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h
> > index 251fc1c..702f90d 100644
> > --- a/include/sound/ac97_codec.h
> > +++ b/include/sound/ac97_codec.h
> > @@ -642,4 +642,10 @@ int snd_ac97_pcm_double_rate_rules(struct
> > snd_pcm_runtime *runtime); /* ad hoc AC97 device driver access */
> > extern struct bus_type ac97_bus_type;
> >
> > +/* AC97 platform_data adding function */
> > +static inline void snd_ac97_dev_add_pdata(struct snd_ac97 *ac97, void
> > *data) +{
> > + ac97->dev.platform_data = data;
> > +}
> > +
> > #endif /* __SOUND_AC97_CODEC_H */
> > diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
> > index 352d7ee..0d65a03 100644
> > --- a/include/sound/soc-dai.h
> > +++ b/include/sound/soc-dai.h
> > @@ -179,6 +179,7 @@ struct snd_soc_dai {
> > int ac97_control;
> >
> > struct device *dev;
> > + void *ac97_pdata; /* platform_data for the ac97 codec */
> >
> > /* DAI callbacks */
> > int (*probe)(struct platform_device *pdev,
> > diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
> > index 1d70829..0b12fe5 100644
> > --- a/sound/soc/soc-core.c
> > +++ b/sound/soc/soc-core.c
> > @@ -1381,8 +1381,11 @@ int snd_soc_init_card(struct snd_soc_device
> > *socdev) continue;
> > }
> > }
> > - if (card->dai_link[i].codec_dai->ac97_control)
> > + if (card->dai_link[i].codec_dai->ac97_control) {
> > ac97 = 1;
> > + codec->ac97->dev.platform_data =
> > + card->dai_link[i].cpu_dai->ac97_pdata;
>
> Any reason not to use the newly added snd_ac97_dev_add_pdata()?
hm, that's true, one more iteration then.
>
>
> thanks,
>
> Takashi
From 776233642ae196ee1998791ec69bd20d7725ecca Mon Sep 17 00:00:00 2001
From: Marek Vasut <marek.vasut@xxxxxxxxx>
Date: Tue, 21 Jul 2009 16:22:29 +0200
Subject: [PATCH 1/4] Allow passing platform_data to devices attached to AC97 bus
This patch allows passing platform_data to devices attached to AC97 bus
(like touchscreens, battery measurement chips ...).
Signed-off-by: Marek Vasut <marek.vasut@xxxxxxxxx>
---
include/sound/ac97_codec.h | 6 ++++++
include/sound/soc-dai.h | 1 +
sound/soc/soc-core.c | 6 +++++-
3 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h
index 251fc1c..9b1c098 100644
--- a/include/sound/ac97_codec.h
+++ b/include/sound/ac97_codec.h
@@ -642,4 +642,10 @@ int snd_ac97_pcm_double_rate_rules(struct snd_pcm_runtime *runtime);
/* ad hoc AC97 device driver access */
extern struct bus_type ac97_bus_type;
+/* AC97 platform_data adding function */
+static inline void snd_ac97_dev_add_pdata(struct snd_ac97 *ac97, void *data)
+{
+ ac97->dev.platform_data = data;
+}
+
#endif /* __SOUND_AC97_CODEC_H */
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index 352d7ee..0d65a03 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -179,6 +179,7 @@ struct snd_soc_dai {
int ac97_control;
struct device *dev;
+ void *ac97_pdata; /* platform_data for the ac97 codec */
/* DAI callbacks */
int (*probe)(struct platform_device *pdev,
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 1d70829..7cb0917 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -28,6 +28,7 @@
#include <linux/bitops.h>
#include <linux/debugfs.h>
#include <linux/platform_device.h>
+#include <sound/ac97_codec.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
@@ -1381,8 +1382,11 @@ int snd_soc_init_card(struct snd_soc_device *socdev)
continue;
}
}
- if (card->dai_link[i].codec_dai->ac97_control)
+ if (card->dai_link[i].codec_dai->ac97_control) {
ac97 = 1;
+ snd_ac97_dev_add_pdata(codec->ac97,
+ card->dai_link[i].cpu_dai->ac97_pdata);
+ }
}
snprintf(codec->card->shortname, sizeof(codec->card->shortname),
"%s", card->name);
--
1.6.3.3
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