Support was added to allow location of both CPU and CODEC components
of a DAI link from their parent's of_node if they did not have an
of_node themselves in this commit:
commit 3e0aa8d83bf8 ("ASoC: core: If component doesn't have of_node
use parent's node instead")
However this leaves platforms as something of a special case as the
major DAI component that doesn't do this. Since this is useful for MFD
devices which often utilise a single device tree entry for the whole
device, add support for looking up platforms from the parent's of_node
as well.
Signed-off-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
---
sound/soc/soc-core.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index a7a1ca4..87c607b 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1035,6 +1035,7 @@ static int soc_bind_dai_link(struct snd_soc_card *card,
struct snd_soc_dai_link_component cpu_dai_component;
struct snd_soc_dai **codec_dais;
struct snd_soc_platform *platform;
+ struct device_node *platform_of_node;
const char *platform_name;
int i;
@@ -1084,9 +1085,12 @@ static int soc_bind_dai_link(struct snd_soc_card *card,
/* find one from the set of registered platforms */
list_for_each_entry(platform, &platform_list, list) {
+ platform_of_node = platform->dev->of_node;
+ if (!platform_of_node && platform->dev->parent->of_node)
+ platform_of_node = platform->dev->parent->of_node;
+
if (dai_link->platform_of_node) {
- if (platform->dev->of_node !=
- dai_link->platform_of_node)
+ if (platform_of_node != dai_link->platform_of_node)
continue;
} else {
if (strcmp(platform->component.name, platform_name))
--
2.1.4
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