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ASoC: topology: Allow bespoke configuration post widget creation

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Current topology only allows for widget configuration before the widget
is registered. This patch also allows further configuration and usage
after registration is complete.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Liam Girdwood 2017-06-09 15:43:23 +01:00 committed by Mark Brown
parent 102ebe266c
commit ebd259d33a
2 changed files with 22 additions and 0 deletions
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3
include/sound/soc-topology.h
View file

@ -118,6 +118,9 @@ struct snd_soc_tplg_ops {
int (*widget_load)(struct snd_soc_component *,
struct snd_soc_dapm_widget *,
struct snd_soc_tplg_dapm_widget *);
int (*widget_ready)(struct snd_soc_component *,
struct snd_soc_dapm_widget *,
struct snd_soc_tplg_dapm_widget *);
int (*widget_unload)(struct snd_soc_component *,
struct snd_soc_dobj *);

19
sound/soc/soc-topology.c
View file

@ -344,6 +344,17 @@ static int soc_tplg_widget_load(struct soc_tplg *tplg,
return 0;
}
/* optionally pass new dynamic widget to component driver. This is mainly for
* external widgets where we can assign private data/ops */
static int soc_tplg_widget_ready(struct soc_tplg *tplg,
struct snd_soc_dapm_widget *w, struct snd_soc_tplg_dapm_widget *tplg_w)
{
if (tplg->comp && tplg->ops && tplg->ops->widget_ready)
return tplg->ops->widget_ready(tplg->comp, w, tplg_w);
return 0;
}
/* pass DAI configurations to component driver for extra initialization */
static int soc_tplg_dai_load(struct soc_tplg *tplg,
struct snd_soc_dai_driver *dai_drv)
@ -1579,8 +1590,16 @@ widget:
widget->dobj.ops = tplg->ops;
widget->dobj.index = tplg->index;
list_add(&widget->dobj.list, &tplg->comp->dobj_list);
ret = soc_tplg_widget_ready(tplg, widget, w);
if (ret < 0)
goto ready_err;
return 0;
ready_err:
snd_soc_tplg_widget_remove(widget);
snd_soc_dapm_free_widget(widget);
hdr_err:
kfree(template.sname);
err: