[PATCH v2 1/3] ASoC: Add a component fixup_controls callback

[Charles Keepax <ckeepax@opensource.cirrus.com>]

A card level fixup_controls callback was added in:

commit df4d27b19b89 ("ASoC: Introduce 'fixup_controls' card method")

This allowed the machine driver to take actions after all the
card controls have been added. However, there are times when a
codec driver would also want to do things like obtain references
to controls for later use, which require all the controls to be
present. Add a component level fixup_controls callback, echoing
the card level option.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
---

No changes since v1.

 include/sound/soc-component.h |  2 ++
 sound/soc/soc-component.c     | 10 ++++++++++
 sound/soc/soc-core.c          |  5 +++++
 3 files changed, 17 insertions(+)

diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h
index aa423865dbe7c..4b7d7954953db 100644
--- a/include/sound/soc-component.h
+++ b/include/sound/soc-component.h
@@ -78,6 +78,7 @@ struct snd_soc_component_driver {
 	unsigned int num_dapm_routes;
 
 	int (*probe)(struct snd_soc_component *component);
+	int (*fixup_controls)(struct snd_soc_component *component);
 	void (*remove)(struct snd_soc_component *component);
 	int (*suspend)(struct snd_soc_component *component);
 	int (*resume)(struct snd_soc_component *component);
@@ -380,6 +381,7 @@ void snd_soc_component_suspend(struct snd_soc_component *component);
 void snd_soc_component_resume(struct snd_soc_component *component);
 int snd_soc_component_is_suspended(struct snd_soc_component *component);
 int snd_soc_component_probe(struct snd_soc_component *component);
+int snd_soc_component_fixup_controls(struct snd_soc_component *component);
 void snd_soc_component_remove(struct snd_soc_component *component);
 int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component,
 				      struct device_node *ep);
diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c
index 21492d15833f7..2ce24513fac5d 100644
--- a/sound/soc/soc-component.c
+++ b/sound/soc/soc-component.c
@@ -310,6 +310,16 @@ int snd_soc_component_probe(struct snd_soc_component *component)
 	return soc_component_ret(component, ret);
 }
 
+int snd_soc_component_fixup_controls(struct snd_soc_component *component)
+{
+	int ret = 0;
+
+	if (component->driver->fixup_controls)
+		ret = component->driver->fixup_controls(component);
+
+	return soc_component_ret(component, ret);
+}
+
 void snd_soc_component_remove(struct snd_soc_component *component)
 {
 	if (component->driver->remove)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 7817beea5b3bc..44f9bb4473f55 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2162,6 +2162,11 @@ static int snd_soc_bind_card(struct snd_soc_card *card)
 		goto probe_end;
 
 	snd_soc_dapm_new_widgets(card);
+	for_each_card_components(card, component) {
+		ret = snd_soc_component_fixup_controls(component);
+		if (ret < 0)
+			goto probe_end;
+	}
 	snd_soc_card_fixup_controls(card);
 
 	ret = snd_card_register(card->snd_card);
-- 
2.47.3