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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2019-06-26 04:40:59 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-06-26 14:28:56 +0300 |
| commit | e3303268f9cfa4eb7c2217df471417d4327109fd (patch) | |
| tree | fcee696a1aa87036efcebbbf910ac25239b3e45d /sound | |
| parent | 526a6d45b013d45fdddd420860c69fb29fed3d62 (diff) | |
| download | linux-e3303268f9cfa4eb7c2217df471417d4327109fd.tar.xz | |
ASoC: soc-core: don't use soc_find_component() at snd_soc_find_dai()
commit b9f2e25c599bb ("ASoC: soc-core: use soc_find_component() at
snd_soc_find_dai()") used soc_find_component() at snd_soc_find_dai(),
but, some CPU driver has CPU component for DAI and Platform component,
for example generic DMAEngine component.
In such case, CPU component and Platform component have same
of_node / name.
Here soc_find_component() returns *1st* found component.
Thus, we shouldn't use soc_find_component() at snd_soc_find_dai().
This patch fixup this it, and add comment to indicate this limitation.
Fixes: commit b9f2e25c599bb ("ASoC: soc-core: use soc_find_component() at snd_soc_find_dai()")
Reported-by: Dmitry Osipenko <digetx@gmail.com>
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/soc-core.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 358f1fbf9a30..8ccaf63e428c 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -786,6 +786,14 @@ static struct snd_soc_component *soc_find_component( lockdep_assert_held(&client_mutex); + /* + * NOTE + * + * It returns *1st* found component, but some driver + * has few components by same of_node/name + * ex) + * CPU component and generic DMAEngine component + */ for_each_component(component) if (snd_soc_is_matching_component(dlc, component)) return component; @@ -813,8 +821,9 @@ struct snd_soc_dai *snd_soc_find_dai( lockdep_assert_held(&client_mutex); /* Find CPU DAI from registered DAIs */ - component = soc_find_component(dlc); - if (component) { + for_each_component(component) { + if (!snd_soc_is_matching_component(dlc, component)) + continue; for_each_component_dais(component, dai) { if (dlc->dai_name && strcmp(dai->name, dlc->dai_name) && (!dai->driver->name |