[PATCH v2] ASoC: core: Don't set platform name when of_node is set

From: Daniel Baluta
Date: Thu Mar 25 2021 - 07:32:04 EST


From: Daniel Baluta <daniel.baluta@xxxxxxx>

A DAI link has 3 components:
* CPU
* platform
* codec(s)

A component is specified via:
* name
* of_node
* dai_name

In order to avoid confusion when building a sound card we disallow
matching by both name and of_node (1).

soc_check_tplg_fes allows overriding certain BE links by overriding
BE link name. This doesn't work well if BE link was specified via DT,
because we end up with a link with both name and of_node specified
which is conflicting with (1).

In order to fix this we need to:
* override of_node if component was specified via DT
* override name, otherwise.

Signed-off-by: Daniel Baluta <daniel.baluta@xxxxxxx>
---
sound/soc/soc-core.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 522bae73640a..7a1c011a7fe0 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1648,7 +1648,11 @@ static void soc_check_tplg_fes(struct snd_soc_card *card)
dev_err(card->dev, "init platform error");
continue;
}
- dai_link->platforms->name = component->name;
+
+ if (component->dev->of_node)
+ dai_link->platforms->of_node = component->dev->of_node;
+ else
+ dai_link->platforms->name = component->name;

/* convert non BE into BE */
if (!dai_link->no_pcm) {
--
2.27.0