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ASoC: topology: Allow bespoke configuration post widget creation 

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: