The patch below does not apply to the 5.16-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 01429183f479c54c1b5d15453a8ce574ea43e525 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Date: Tue, 23 Nov 2021 19:16:04 +0200 Subject: [PATCH] ASoC: SOF: sof-audio: setup sched widgets during pipeline complete step
Older firmware prior to ABI 3.19 has a dependency where the scheduler widgets need to be setup last. Moving the call to sof_widget_setup() before the pipeline_complete() call also helps remove the need for the 'reverse' direction when walking through the widget list - this was only working because of the topology macros but the topology does not require any order.
Fixes: 5fcdbb2d45df ("ASoC: SOF: Add support for dynamic pipelines") Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Signed-off-by: Kai Vehmanen kai.vehmanen@linux.intel.com Link: https://lore.kernel.org/r/20211123171606.129350-1-kai.vehmanen@linux.intel.c... Signed-off-by: Mark Brown broonie@kernel.org
diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c index 0f2566f7c094..f4e142ec0fbd 100644 --- a/sound/soc/sof/sof-audio.c +++ b/sound/soc/sof/sof-audio.c @@ -637,16 +637,25 @@ const struct sof_ipc_pipe_new *snd_sof_pipeline_find(struct snd_sof_dev *sdev,
int sof_set_up_pipelines(struct snd_sof_dev *sdev, bool verify) { + struct sof_ipc_fw_version *v = &sdev->fw_ready.version; struct snd_sof_widget *swidget; struct snd_sof_route *sroute; int ret;
/* restore pipeline components */ - list_for_each_entry_reverse(swidget, &sdev->widget_list, list) { + list_for_each_entry(swidget, &sdev->widget_list, list) { /* only set up the widgets belonging to static pipelines */ if (!verify && swidget->dynamic_pipeline_widget) continue;
+ /* + * For older firmware, skip scheduler widgets in this loop, + * sof_widget_setup() will be called in the 'complete pipeline' loop + */ + if (v->abi_version < SOF_ABI_VER(3, 19, 0) && + swidget->id == snd_soc_dapm_scheduler) + continue; + /* update DAI config. The IPC will be sent in sof_widget_setup() */ if (WIDGET_IS_DAI(swidget->id)) { struct snd_sof_dai *dai = swidget->private; @@ -694,6 +703,12 @@ int sof_set_up_pipelines(struct snd_sof_dev *sdev, bool verify) if (!verify && swidget->dynamic_pipeline_widget) continue;
+ if (v->abi_version < SOF_ABI_VER(3, 19, 0)) { + ret = sof_widget_setup(sdev, swidget); + if (ret < 0) + return ret; + } + swidget->complete = snd_sof_complete_pipeline(sdev, swidget); break; @@ -722,7 +737,7 @@ int sof_tear_down_pipelines(struct snd_sof_dev *sdev, bool verify) * sroute->setup because during suspend all streams are suspended and during topology * loading the sound card unavailable to open PCMs. */ - list_for_each_entry_reverse(swidget, &sdev->widget_list, list) { + list_for_each_entry(swidget, &sdev->widget_list, list) { if (swidget->dynamic_pipeline_widget) continue;