[PATCH] ASoC: core: Always store of_node when getting DAI link component
The generic snd_soc_dai_get_dlc() contains a default translation function for DAI names which has factored out common code in a number of card drivers, resolving the dai_name and of_node either using a driver provided translation function or with a generic implementation. Unfortunately the of_node can't be set by the translation function since it currently doesn't have an interface to do that but snd_soc_dai_get_dlc() only initialises the of_node in the case where there is no translation function.
This breaks the Meson support after conversion to use the generic helpers since the DPCM cards for it check which component of the SoC is connected to each link by checking the compatible for the component and the Meson components provide a custom operation so don't use the generic code.
Fix this and potentially other cards by unconditionally storing the node in the dai_link_component, there shouldn't be a binding specific of_node selected since that's how we determine the translation function.
Fixes: 2e1dbea1f8a3 ("ASoC: meson: use snd_soc_{of_}get_dlc()") Fixes: 3c8b5861850c ("ASoC: soc-core.c: add index on snd_soc_of_get_dai_name()") Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/soc-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index f06a20773a34..11bc5250ffd0 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3262,6 +3262,8 @@ int snd_soc_get_dlc(const struct of_phandle_args *args, struct snd_soc_dai_link_ struct snd_soc_component *pos; int ret = -EPROBE_DEFER;
+ dlc->of_node = args->np; + mutex_lock(&client_mutex); for_each_component(pos) { struct device_node *component_of_node = soc_component_to_node(pos); @@ -3300,7 +3302,6 @@ int snd_soc_get_dlc(const struct of_phandle_args *args, struct snd_soc_dai_link_ id--; }
- dlc->of_node = args->np; dlc->dai_name = dai->driver->name; if (!dlc->dai_name) dlc->dai_name = pos->name;
--- base-commit: 154756319cc6f8b8b86241da02da6a8fcc6abd1f change-id: 20230623-asoc-fix-meson-probe-94ecd113bebb
Best regards,
On Fri, 23 Jun 2023 22:04:39 +0100, Mark Brown wrote:
The generic snd_soc_dai_get_dlc() contains a default translation function for DAI names which has factored out common code in a number of card drivers, resolving the dai_name and of_node either using a driver provided translation function or with a generic implementation. Unfortunately the of_node can't be set by the translation function since it currently doesn't have an interface to do that but snd_soc_dai_get_dlc() only initialises the of_node in the case where there is no translation function.
[...]
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
Thanks!
[1/1] ASoC: core: Always store of_node when getting DAI link component commit: 2d0cad0473bd1ffbc5842be0b9f2546265acb011
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Thanks, Mark
Hi Mark
Thank you for the patch !
The generic snd_soc_dai_get_dlc() contains a default translation function for DAI names which has factored out common code in a number of card drivers, resolving the dai_name and of_node either using a driver provided translation function or with a generic implementation. Unfortunately the of_node can't be set by the translation function since it currently doesn't have an interface to do that but snd_soc_dai_get_dlc() only initialises the of_node in the case where there is no translation function.
This breaks the Meson support after conversion to use the generic helpers since the DPCM cards for it check which component of the SoC is connected to each link by checking the compatible for the component and the Meson components provide a custom operation so don't use the generic code.
Fix this and potentially other cards by unconditionally storing the node in the dai_link_component, there shouldn't be a binding specific of_node selected since that's how we determine the translation function.
Fixes: 2e1dbea1f8a3 ("ASoC: meson: use snd_soc_{of_}get_dlc()") Fixes: 3c8b5861850c ("ASoC: soc-core.c: add index on snd_soc_of_get_dai_name()") Signed-off-by: Mark Brown broonie@kernel.org
Yes, indeed. But I think we want to set it under lock and if ret was no error case ?
---------- diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index ab1f302ee078..5cc3f4cc9d1b 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3375,7 +3375,6 @@ int snd_soc_get_dlc(const struct of_phandle_args *args, struct snd_soc_dai_link_ id--; }
- dlc->of_node = args->np; dlc->dai_name = snd_soc_dai_name_get(dai); } else if (ret) { /* @@ -3389,6 +3388,10 @@ int snd_soc_get_dlc(const struct of_phandle_args *args, struct snd_soc_dai_link_
break; } + + if (ret == 0) + dlc->of_node = args->np; + mutex_unlock(&client_mutex); return ret; } -----------
Thank you for your help !!
Best regards --- Kuninori Morimoto
On Sun, Jun 25, 2023 at 11:54:29PM +0000, Kuninori Morimoto wrote:
The generic snd_soc_dai_get_dlc() contains a default translation function for DAI names which has factored out common code in a number of card drivers, resolving the dai_name and of_node either using a driver provided
Yes, indeed. But I think we want to set it under lock and if ret was no error case ?
It doesn't really matter - there's only one possible result, and nothing should be looking at the dlc unless we return success, but yes that'd probably be a little cleaner providing we don't ever return early.
On Mon, Jun 26, 2023 at 12:49:16PM +0100, Mark Brown wrote:
On Sun, Jun 25, 2023 at 11:54:29PM +0000, Kuninori Morimoto wrote:
The generic snd_soc_dai_get_dlc() contains a default translation function for DAI names which has factored out common code in a number of card drivers, resolving the dai_name and of_node either using a driver provided
Yes, indeed. But I think we want to set it under lock and if ret was no error case ?
It doesn't really matter - there's only one possible result, and nothing should be looking at the dlc unless we return success, but yes that'd probably be a little cleaner providing we don't ever return early.
BTW that's not to say don't submit this as a patch, just that it doesn't need to get applied as a fix.
Hi Mark
Thank you for the mail
But I think we want to set it under lock and if ret was no error case ?
It doesn't really matter - there's only one possible result, and nothing should be looking at the dlc unless we return success, but yes that'd probably be a little cleaner providing we don't ever return early.
BTW that's not to say don't submit this as a patch, just that it doesn't need to get applied as a fix.
Thanks. I thought it is not a big deal. But yes, will post a patch.
Thank you for your help !!
Best regards --- Kuninori Morimoto
participants (2)
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Kuninori Morimoto -
Mark Brown