[alsa-devel] [PATCH V2] ASoC: core: Don't probe the component which is dummy
Dummy dai can be used by multiple sound card. But it only belong to one card's dapm list. If another card use it, there will be dapm_assert_locked warning.
[ 20.015782] WARNING: CPU: 1 PID: 661 at sound/soc/soc-dapm.c:124 dapm_assert_locked.isra.36+0x4c/0x58() [ 20.025249] Modules linked in: [ 20.028349] CPU: 1 PID: 661 Comm: aplay Not tainted 4.1.0-rc6-next-20150605-00004-gaee05d8-dirty #92 [ 20.037528] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) [ 20.044110] Backtrace: [ 20.046614] [<80012e00>] (dump_backtrace) from [<80012fa0>] (show_stack+0x18/0x1c) [ 20.054229] r6:809e8060 r5:00000000 r4:00000000 r3:00000000 [ 20.060002] [<80012f88>] (show_stack) from [<807a0f74>] (dump_stack+0x80/0x9c) [ 20.067293] [<807a0ef4>] (dump_stack) from [<8002b144>] (warn_slowpath_common+0x7c/0xb4) [ 20.075427] r5:0000007c r4:00000000 [ 20.079065] [<8002b0c8>] (warn_slowpath_common) from [<8002b1a0>] (warn_slowpath_null+0x24/0x2c) [ 20.087898] r8:00000001 r7:88007c28 r6:ed94a680 r5:809e83e4 r4:ed83d6c0 [ 20.094747] [<8002b17c>] (warn_slowpath_null) from [<8058403c>] (dapm_assert_locked.isra.36+0x4c/0x58) [ 20.104101] [<80583ff0>] (dapm_assert_locked.isra.36) from [<805842ec>] (dapm_mark_dirty+0x64/0xa4) [ 20.113165] [<80584288>] (dapm_mark_dirty) from [<805853a8>] (soc_dapm_dai_stream_event.isra.42+0x30/0xc8) [ 20.122863] r8:ed9b5dbc r7:00000000 r6:00000001 r5:00000001 r4:ed83d6c0 [ 20.129706] [<80585378>] (soc_dapm_dai_stream_event.isra.42) from [<80587e28>] (snd_soc_dapm_stream_event+0x78/0xa0) [ 20.140264] r5:ee2ee62c r4:00000001 [ 20.143918] [<80587db0>] (snd_soc_dapm_stream_event) from [<8058957c>] (soc_pcm_prepare+0x138/0x21c) [ 20.153058] r8:ed8d9480 r7:00000000 r6:ed9b0e00 r5:00000001 r4:ee2ee62c r3:00000000 ...
This patch is to not probe the dummy component in soc_probe_component. Then there is no widget created for dummy DAI, and also don't need to check the dummy dai in dapm_connect_dai_link_widgets().
Signed-off-by: Shengjiu Wang shengjiu.wang@freescale.com --- changes in v2 - don't probe the component which is dummy - remove the dummy check in dapm_connect_dai_link_widgets().
sound/soc/soc-core.c | 2 +- sound/soc/soc-dapm.c | 5 ----- 2 files changed, 1 insertion(+), 6 deletions(-)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 3a4a5c0..6ce6217 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1102,7 +1102,7 @@ static int soc_probe_component(struct snd_soc_card *card, struct snd_soc_dai *dai; int ret;
- if (component->probed) + if (!strcmp(component->name, "snd-soc-dummy") || component->probed) return 0;
component->card = card; diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index aa327c9..37ab6b9 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -3820,11 +3820,6 @@ static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, for (i = 0; i < rtd->num_codecs; i++) { struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
- /* there is no point in connecting BE DAI links with dummies */ - if (snd_soc_dai_is_dummy(codec_dai) || - snd_soc_dai_is_dummy(cpu_dai)) - continue; - /* connect BE DAI playback if widgets are valid */ if (codec_dai->playback_widget && cpu_dai->playback_widget) { source = cpu_dai->playback_widget;
The patch
ASoC: core: Don't probe the component which is dummy
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From 6e78108bda78adbb2d4ef55ec60a388aba975797 Mon Sep 17 00:00:00 2001
From: Shengjiu Wang shengjiu.wang@freescale.com Date: Fri, 3 Jul 2015 16:30:30 +0800 Subject: [PATCH] ASoC: core: Don't probe the component which is dummy
Dummy dai can be used by multiple sound card. But it only belong to one card's dapm list. If another card use it, there will be dapm_assert_locked warning.
[ 20.015782] WARNING: CPU: 1 PID: 661 at sound/soc/soc-dapm.c:124 dapm_assert_locked.isra.36+0x4c/0x58() [ 20.025249] Modules linked in: [ 20.028349] CPU: 1 PID: 661 Comm: aplay Not tainted 4.1.0-rc6-next-20150605-00004-gaee05d8-dirty #92 [ 20.037528] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) [ 20.044110] Backtrace: [ 20.046614] [<80012e00>] (dump_backtrace) from [<80012fa0>] (show_stack+0x18/0x1c) [ 20.054229] r6:809e8060 r5:00000000 r4:00000000 r3:00000000 [ 20.060002] [<80012f88>] (show_stack) from [<807a0f74>] (dump_stack+0x80/0x9c) [ 20.067293] [<807a0ef4>] (dump_stack) from [<8002b144>] (warn_slowpath_common+0x7c/0xb4) [ 20.075427] r5:0000007c r4:00000000 [ 20.079065] [<8002b0c8>] (warn_slowpath_common) from [<8002b1a0>] (warn_slowpath_null+0x24/0x2c) [ 20.087898] r8:00000001 r7:88007c28 r6:ed94a680 r5:809e83e4 r4:ed83d6c0 [ 20.094747] [<8002b17c>] (warn_slowpath_null) from [<8058403c>] (dapm_assert_locked.isra.36+0x4c/0x58) [ 20.104101] [<80583ff0>] (dapm_assert_locked.isra.36) from [<805842ec>] (dapm_mark_dirty+0x64/0xa4) [ 20.113165] [<80584288>] (dapm_mark_dirty) from [<805853a8>] (soc_dapm_dai_stream_event.isra.42+0x30/0xc8) [ 20.122863] r8:ed9b5dbc r7:00000000 r6:00000001 r5:00000001 r4:ed83d6c0 [ 20.129706] [<80585378>] (soc_dapm_dai_stream_event.isra.42) from [<80587e28>] (snd_soc_dapm_stream_event+0x78/0xa0) [ 20.140264] r5:ee2ee62c r4:00000001 [ 20.143918] [<80587db0>] (snd_soc_dapm_stream_event) from [<8058957c>] (soc_pcm_prepare+0x138/0x21c) [ 20.153058] r8:ed8d9480 r7:00000000 r6:ed9b0e00 r5:00000001 r4:ee2ee62c r3:00000000 ...
This patch is to not probe the dummy component in soc_probe_component. Then there is no widget created for dummy DAI, and also don't need to check the dummy dai in dapm_connect_dai_link_widgets().
Signed-off-by: Shengjiu Wang shengjiu.wang@freescale.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/soc-core.c | 2 +- sound/soc/soc-dapm.c | 5 ----- 2 files changed, 1 insertion(+), 6 deletions(-)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 3a4a5c0e3f97..6ce621749f8d 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1102,7 +1102,7 @@ static int soc_probe_component(struct snd_soc_card *card, struct snd_soc_dai *dai; int ret;
- if (component->probed) + if (!strcmp(component->name, "snd-soc-dummy") || component->probed) return 0;
component->card = card; diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index aa327c92480c..37ab6b9b6902 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -3820,11 +3820,6 @@ static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, for (i = 0; i < rtd->num_codecs; i++) { struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
- /* there is no point in connecting BE DAI links with dummies */ - if (snd_soc_dai_is_dummy(codec_dai) || - snd_soc_dai_is_dummy(cpu_dai)) - continue; - /* connect BE DAI playback if widgets are valid */ if (codec_dai->playback_widget && cpu_dai->playback_widget) { source = cpu_dai->playback_widget;
participants (2)
-
Mark Brown -
Shengjiu Wang