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authorCharles Keepax <ckeepax@opensource.cirrus.com>2019-01-25 16:04:06 +0000
committerMark Brown <broonie@kernel.org>2019-01-25 17:56:05 +0000
commitd0b95e6cd298a785c126e75a085af6dd7b7b1f60 (patch)
treeb73f6a3b3e2e457c7f98b7762f9d292775bb39a0
parent8077ec011b1ea26abb7ca786f28ecccfb352717f (diff)
downloadlinux-d0b95e6cd298a785c126e75a085af6dd7b7b1f60.tar.bz2
ASoC: core: Allow soc_find_component lookups to match parent of_node
For devices implemented as a MFD it is common to only have a single node in devicetree representing the whole device. As such when looking up components in soc_find_components we should match against both the devices of_node and the devices parent's of_node, as is already done in the rest of the ASoC core. This causes regressions for some DAI links at the moment as soc_find_component was recently added as a check in soc_init_dai_link. Fixes: 8780cf1142a5 ("ASoC: soc-core: defer card probe until all component is added to list") Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
-rw-r--r--sound/soc/soc-core.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index aae450ba4f08..ea16c2b199ce 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -735,12 +735,17 @@ static struct snd_soc_component *soc_find_component(
const struct device_node *of_node, const char *name)
{
struct snd_soc_component *component;
+ struct device_node *component_of_node;
lockdep_assert_held(&client_mutex);
for_each_component(component) {
if (of_node) {
- if (component->dev->of_node == of_node)
+ component_of_node = component->dev->of_node;
+ if (!component_of_node && component->dev->parent)
+ component_of_node = component->dev->parent->of_node;
+
+ if (component_of_node == of_node)
return component;
} else if (name && strcmp(component->name, name) == 0) {
return component;