From 9a09de40b2da3b76c6f23965414372882818e935 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Tue, 18 Feb 2020 17:08:54 -0600 Subject: [PATCH 01/20] ASoC: fix for_rtd_codec_dai_rollback() macro The use of parentheses to protect the argument is fine for (i)++ but not for (i--). Signed-off-by: Pierre-Louis Bossart --- include/sound/soc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index f0e4f36f83bfa7..8a2266676b2dd2 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1157,7 +1157,7 @@ struct snd_soc_pcm_runtime { ((i) < rtd->num_codecs) && ((dai) = rtd->codec_dais[i]); \ (i)++) #define for_each_rtd_codec_dai_rollback(rtd, i, dai) \ - for (; ((--i) >= 0) && ((dai) = rtd->codec_dais[i]);) + for (; (--(i) >= 0) && ((dai) = rtd->codec_dais[i]);) void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd); From af255e9320cd05d6cd89e02ef087a71064557aa0 Mon Sep 17 00:00:00 2001 From: Shreyas NC Date: Mon, 20 Jan 2020 21:29:23 +0800 Subject: [PATCH 02/20] ASoC: Add initial support for multiple CPU DAIs ASoC core supports multiple codec DAIs but supports only a CPU DAI. To support multiple cpu DAIs, add cpu_dai and num_cpu_dai in snd_soc_dai_link and snd_soc_pcm_runtime structures similar to support for codec_dai. This is intended as a preparatory patch to eventually support the unification of the Codec and CPU DAI. Inline with multiple codec DAI approach, add support to allocate, init, bind and probe multiple cpu_dai on init if driver specifies that. Also add support to loop over multiple cpu_dai during suspend and resume. This is intended as a preparatory patch to eventually unify the CPU and Codec DAI into DAI components. Signed-off-by: Shreyas NC Signed-off-by: Kuninori Morimoto Signed-off-by: Bard Liao Signed-off-by: Pierre-Louis Bossart --- include/sound/soc.h | 15 ++++ sound/soc/soc-core.c | 168 +++++++++++++++++++++++-------------------- 2 files changed, 106 insertions(+), 77 deletions(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index 8a2266676b2dd2..81e5d17be9351d 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -855,6 +855,11 @@ struct snd_soc_dai_link { ((platform) = &link->platforms[i]); \ (i)++) +#define for_each_link_cpus(link, i, cpu) \ + for ((i) = 0; \ + ((i) < link->num_cpus) && ((cpu) = &link->cpus[i]); \ + (i)++) + /* * Sample 1 : Single CPU/Codec/Platform * @@ -1132,6 +1137,9 @@ struct snd_soc_pcm_runtime { struct snd_soc_dai **codec_dais; unsigned int num_codecs; + struct snd_soc_dai **cpu_dais; + unsigned int num_cpus; + struct delayed_work delayed_work; void (*close_delayed_work_func)(struct snd_soc_pcm_runtime *rtd); #ifdef CONFIG_DEBUG_FS @@ -1159,6 +1167,13 @@ struct snd_soc_pcm_runtime { #define for_each_rtd_codec_dai_rollback(rtd, i, dai) \ for (; (--(i) >= 0) && ((dai) = rtd->codec_dais[i]);) +#define for_each_rtd_cpu_dai(rtd, i, dai)\ + for ((i) = 0; \ + ((i) < rtd->num_cpus) && ((dai) = rtd->cpu_dais[i]); \ + (i)++) +#define for_each_rtd_cpu_dai_rollback(rtd, i, dai) \ + for (; (--(i) >= 0) && ((dai) = rtd->cpu_dais[i]);) + void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd); /* mixer control */ diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 30c17fde14caf5..6038920c047b6e 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -483,6 +483,14 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( if (!rtd->codec_dais) goto free_rtd; + /* + * for rtd->cpu_dais + */ + rtd->cpu_dais = devm_kcalloc(dev, dai_link->num_cpus, + sizeof(struct snd_soc_dai *), + GFP_KERNEL); + if (!rtd->cpu_dais) + goto free_rtd; /* * rtd remaining settings */ @@ -833,7 +841,7 @@ static int soc_dai_link_sanity_check(struct snd_soc_card *card, struct snd_soc_dai_link *link) { int i; - struct snd_soc_dai_link_component *codec, *platform; + struct snd_soc_dai_link_component *cpu, *codec, *platform; for_each_link_codecs(link, i, codec) { /* @@ -882,44 +890,38 @@ static int soc_dai_link_sanity_check(struct snd_soc_card *card, return -EPROBE_DEFER; } - /* FIXME */ - if (link->num_cpus > 1) { - dev_err(card->dev, - "ASoC: multi cpu is not yet supported %s\n", - link->name); - return -EINVAL; - } - - /* - * CPU device may be specified by either name or OF node, but - * can be left unspecified, and will be matched based on DAI - * name alone.. - */ - if (link->cpus->name && link->cpus->of_node) { - dev_err(card->dev, - "ASoC: Neither/both cpu name/of_node are set for %s\n", - link->name); - return -EINVAL; - } + for_each_link_cpus(link, i, cpu) { + /* + * CPU device may be specified by either name or OF node, but + * can be left unspecified, and will be matched based on DAI + * name alone.. + */ + if (cpu->name && cpu->of_node) { + dev_err(card->dev, + "ASoC: Neither/both cpu name/of_node are set for %s\n", + link->name); + return -EINVAL; + } - /* - * Defer card registration if cpu dai component is not added to - * component list. - */ - if ((link->cpus->of_node || link->cpus->name) && - !soc_find_component(link->cpus)) - return -EPROBE_DEFER; + /* + * Defer card registration if cpu dai component is not added to + * component list. + */ + if ((cpu->of_node || cpu->name) && + !soc_find_component(cpu)) + return -EPROBE_DEFER; - /* - * At least one of CPU DAI name or CPU device name/node must be - * specified - */ - if (!link->cpus->dai_name && - !(link->cpus->name || link->cpus->of_node)) { - dev_err(card->dev, - "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", - link->name); - return -EINVAL; + /* + * At least one of CPU DAI name or CPU device name/node must be + * specified + */ + if (!cpu->dai_name && + !(cpu->name || cpu->of_node)) { + dev_err(card->dev, + "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", + link->name); + return -EINVAL; + } } return 0; @@ -962,7 +964,7 @@ int snd_soc_add_pcm_runtime(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { struct snd_soc_pcm_runtime *rtd; - struct snd_soc_dai_link_component *codec, *platform; + struct snd_soc_dai_link_component *codec, *platform, *cpu; struct snd_soc_component *component; int i, ret; @@ -987,14 +989,19 @@ int snd_soc_add_pcm_runtime(struct snd_soc_card *card, if (!rtd) return -ENOMEM; - /* FIXME: we need multi CPU support in the future */ - rtd->cpu_dai = snd_soc_find_dai(dai_link->cpus); - if (!rtd->cpu_dai) { - dev_info(card->dev, "ASoC: CPU DAI %s not registered\n", - dai_link->cpus->dai_name); - goto _err_defer; + rtd->num_cpus = dai_link->num_cpus; + for_each_link_cpus(dai_link, i, cpu) { + rtd->cpu_dais[i] = snd_soc_find_dai(cpu); + if (!rtd->cpu_dais[i]) { + dev_info(card->dev, "ASoC: CPU DAI %s not registered\n", + cpu->dai_name); + goto _err_defer; + } + snd_soc_rtd_add_component(rtd, rtd->cpu_dais[i]->component); } - snd_soc_rtd_add_component(rtd, rtd->cpu_dai->component); + + /* Single cpu links expect cpu and cpu_dai in runtime data */ + rtd->cpu_dai = rtd->cpu_dais[0]; /* Find CODEC from registered CODECs */ rtd->num_codecs = dai_link->num_codecs; @@ -1114,7 +1121,8 @@ static int soc_init_pcm_runtime(struct snd_soc_card *card, dai_link->stream_name, ret); return ret; } - ret = soc_dai_pcm_new(&cpu_dai, 1, rtd); + ret = soc_dai_pcm_new(rtd->cpu_dais, + rtd->num_cpus, rtd); if (ret < 0) return ret; ret = soc_dai_pcm_new(rtd->codec_dais, @@ -1306,6 +1314,7 @@ static void soc_remove_link_dais(struct snd_soc_card *card) { int i; struct snd_soc_dai *codec_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_pcm_runtime *rtd; int order; @@ -1315,14 +1324,15 @@ static void soc_remove_link_dais(struct snd_soc_card *card) for_each_rtd_codec_dai(rtd, i, codec_dai) soc_remove_dai(codec_dai, order); - soc_remove_dai(rtd->cpu_dai, order); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + soc_remove_dai(cpu_dai, order); } } } static int soc_probe_link_dais(struct snd_soc_card *card) { - struct snd_soc_dai *codec_dai; + struct snd_soc_dai *codec_dai, *cpu_dai; struct snd_soc_pcm_runtime *rtd; int i, order, ret; @@ -1333,9 +1343,12 @@ static int soc_probe_link_dais(struct snd_soc_card *card) "ASoC: probe %s dai link %d late %d\n", card->name, rtd->num, order); - ret = soc_probe_dai(rtd->cpu_dai, order); - if (ret) - return ret; + /* probe the CPU DAI */ + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + ret = soc_probe_dai(cpu_dai, order); + if (ret) + return ret; + } /* probe the CODEC DAI */ for_each_rtd_codec_dai(rtd, i, codec_dai) { @@ -1467,8 +1480,9 @@ static void soc_remove_aux_devices(struct snd_soc_card *card) int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, unsigned int dai_fmt) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; + unsigned int inv_dai_fmt; unsigned int i; int ret; @@ -1485,33 +1499,33 @@ int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, * Flip the polarity for the "CPU" end of a CODEC<->CODEC link * the component which has non_legacy_dai_naming is Codec */ - if (cpu_dai->component->driver->non_legacy_dai_naming) { - unsigned int inv_dai_fmt; - - inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; - switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBM_CFM: - inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; - break; - case SND_SOC_DAIFMT_CBM_CFS: - inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; - break; - case SND_SOC_DAIFMT_CBS_CFM: - inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; - break; - case SND_SOC_DAIFMT_CBS_CFS: - inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; - break; - } - - dai_fmt = inv_dai_fmt; + inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; + switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; + break; + case SND_SOC_DAIFMT_CBM_CFS: + inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; + break; + case SND_SOC_DAIFMT_CBS_CFM: + inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; + break; + case SND_SOC_DAIFMT_CBS_CFS: + inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; + break; } + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + unsigned int fmt = dai_fmt; - ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); - if (ret != 0 && ret != -ENOTSUPP) { - dev_warn(cpu_dai->dev, - "ASoC: Failed to set DAI format: %d\n", ret); - return ret; + if (cpu_dai->component->driver->non_legacy_dai_naming) + fmt = inv_dai_fmt; + + ret = snd_soc_dai_set_fmt(cpu_dai, fmt); + if (ret != 0 && ret != -ENOTSUPP) { + dev_warn(cpu_dai->dev, + "ASoC: Failed to set DAI format: %d\n", ret); + return ret; + } } return 0; From 1e044e5e5147bfe0b008fc709b8e6f579757d1b8 Mon Sep 17 00:00:00 2001 From: Shreyas NC Date: Mon, 20 Jan 2020 21:29:24 +0800 Subject: [PATCH 03/20] ASoC: Add multiple CPU DAI support for PCM ops Add support in PCM operations to invoke multiple cpu dais as we do for multiple codec dais. Also the symmetry calculations are updated to reflect multiple cpu dais. Signed-off-by: Vinod Koul Signed-off-by: Shreyas NC Signed-off-by: Kuninori Morimoto Signed-off-by: Bard Liao Signed-off-by: Pierre-Louis Bossart --- sound/soc/soc-pcm.c | 414 +++++++++++++++++++++++++++++--------------- 1 file changed, 272 insertions(+), 142 deletions(-) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 0c3a12d6290ab0..b56e856e31c171 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -94,18 +94,22 @@ struct snd_soc_dapm_widget *dai_get_widget(struct snd_soc_dai *dai, int stream) static void snd_soc_runtime_action(struct snd_soc_pcm_runtime *rtd, int stream, int action) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; int i; lockdep_assert_held(&rtd->card->pcm_mutex); - cpu_dai->stream_active[stream] += action; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + cpu_dai->stream_active[stream] += action; + for_each_rtd_codec_dai(rtd, i, codec_dai) codec_dai->stream_active[stream] += action; - cpu_dai->active += action; - cpu_dai->component->active += action; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + cpu_dai->active += action; + cpu_dai->component->active += action; + } for_each_rtd_codec_dai(rtd, i, codec_dai) { codec_dai->active += action; codec_dai->component->active += action; @@ -275,7 +279,7 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; unsigned int rate, channels, sample_bits, symmetry, i; @@ -284,40 +288,60 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, sample_bits = snd_pcm_format_physical_width(params_format(params)); /* reject unmatched parameters when applying symmetry */ - symmetry = cpu_dai->driver->symmetric_rates || - rtd->dai_link->symmetric_rates; + symmetry = rtd->dai_link->symmetric_rates; + + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + symmetry |= cpu_dai->driver->symmetric_rates; for_each_rtd_codec_dai(rtd, i, codec_dai) symmetry |= codec_dai->driver->symmetric_rates; - if (symmetry && cpu_dai->rate && cpu_dai->rate != rate) { - dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n", - cpu_dai->rate, rate); - return -EINVAL; + if (symmetry) { + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (cpu_dai->rate && cpu_dai->rate != rate) { + dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n", + cpu_dai->rate, rate); + return -EINVAL; + } + } } - symmetry = cpu_dai->driver->symmetric_channels || - rtd->dai_link->symmetric_channels; + symmetry = rtd->dai_link->symmetric_channels; + + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + symmetry |= cpu_dai->driver->symmetric_channels; for_each_rtd_codec_dai(rtd, i, codec_dai) symmetry |= codec_dai->driver->symmetric_channels; - if (symmetry && cpu_dai->channels && cpu_dai->channels != channels) { - dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n", - cpu_dai->channels, channels); - return -EINVAL; + if (symmetry) { + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (cpu_dai->channels && + cpu_dai->channels != channels) { + dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n", + cpu_dai->channels, channels); + return -EINVAL; + } + } } - symmetry = cpu_dai->driver->symmetric_samplebits || - rtd->dai_link->symmetric_samplebits; + symmetry = rtd->dai_link->symmetric_samplebits; + + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + symmetry |= cpu_dai->driver->symmetric_samplebits; for_each_rtd_codec_dai(rtd, i, codec_dai) symmetry |= codec_dai->driver->symmetric_samplebits; - if (symmetry && cpu_dai->sample_bits && cpu_dai->sample_bits != sample_bits) { - dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n", - cpu_dai->sample_bits, sample_bits); - return -EINVAL; + if (symmetry) { + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (cpu_dai->sample_bits && + cpu_dai->sample_bits != sample_bits) { + dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n", + cpu_dai->sample_bits, sample_bits); + return -EINVAL; + } + } } return 0; @@ -326,14 +350,20 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, static bool soc_pcm_has_symmetry(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai_driver *cpu_driver = rtd->cpu_dai->driver; struct snd_soc_dai_link *link = rtd->dai_link; struct snd_soc_dai *codec_dai; + struct snd_soc_dai *cpu_dai; unsigned int symmetry, i; - symmetry = cpu_driver->symmetric_rates || link->symmetric_rates || - cpu_driver->symmetric_channels || link->symmetric_channels || - cpu_driver->symmetric_samplebits || link->symmetric_samplebits; + symmetry = link->symmetric_rates || + link->symmetric_channels || + link->symmetric_samplebits; + + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + symmetry = symmetry || + cpu_dai->driver->symmetric_rates || + cpu_dai->driver->symmetric_channels || + cpu_dai->driver->symmetric_samplebits; for_each_rtd_codec_dai(rtd, i, codec_dai) symmetry = symmetry || @@ -361,10 +391,10 @@ static void soc_pcm_set_msb(struct snd_pcm_substream *substream, int bits) static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; int i; - unsigned int bits = 0, cpu_bits; + unsigned int bits = 0, cpu_bits = 0; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { for_each_rtd_codec_dai(rtd, i, codec_dai) { @@ -374,7 +404,14 @@ static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) } bits = max(codec_dai->driver->playback.sig_bits, bits); } - cpu_bits = cpu_dai->driver->playback.sig_bits; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (cpu_dai->driver->playback.sig_bits == 0) { + cpu_bits = 0; + break; + } + cpu_bits = max(cpu_dai->driver->playback.sig_bits, + cpu_bits); + } } else { for_each_rtd_codec_dai(rtd, i, codec_dai) { if (codec_dai->driver->capture.sig_bits == 0) { @@ -383,7 +420,14 @@ static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) } bits = max(codec_dai->driver->capture.sig_bits, bits); } - cpu_bits = cpu_dai->driver->capture.sig_bits; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (cpu_dai->driver->capture.sig_bits == 0) { + cpu_bits = 0; + break; + } + cpu_bits = max(cpu_dai->driver->capture.sig_bits, + cpu_bits); + } } soc_pcm_set_msb(substream, bits); @@ -396,22 +440,36 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) struct snd_pcm_hardware *hw = &runtime->hw; struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai; - struct snd_soc_dai_driver *cpu_dai_drv = rtd->cpu_dai->driver; + struct snd_soc_dai *cpu_dai; + struct snd_soc_dai_driver *cpu_dai_drv; struct snd_soc_dai_driver *codec_dai_drv; struct snd_soc_pcm_stream *codec_stream; struct snd_soc_pcm_stream *cpu_stream; unsigned int chan_min = 0, chan_max = UINT_MAX; + unsigned int cpu_chan_min = 0, cpu_chan_max = UINT_MAX; unsigned int rate_min = 0, rate_max = UINT_MAX; - unsigned int rates = UINT_MAX; + unsigned int cpu_rate_min = 0, cpu_rate_max = UINT_MAX; + unsigned int rates = UINT_MAX, cpu_rates = UINT_MAX; u64 formats = ULLONG_MAX; int i; - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - cpu_stream = &cpu_dai_drv->playback; - else - cpu_stream = &cpu_dai_drv->capture; + /* first calculate min/max only for CPUs in the DAI link */ + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + cpu_dai_drv = cpu_dai->driver; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + cpu_stream = &cpu_dai_drv->playback; + else + cpu_stream = &cpu_dai_drv->capture; + cpu_chan_min = max(cpu_chan_min, cpu_stream->channels_min); + cpu_chan_max = min(cpu_chan_max, cpu_stream->channels_max); + cpu_rate_min = max(cpu_rate_min, cpu_stream->rate_min); + cpu_rate_max = min_not_zero(cpu_rate_max, cpu_stream->rate_max); + formats &= cpu_stream->formats; + cpu_rates = snd_pcm_rate_mask_intersect(cpu_stream->rates, + cpu_rates); + } - /* first calculate min/max only for CODECs in the DAI link */ + /* second calculate min/max only for CODECs in the DAI link */ for_each_rtd_codec_dai(rtd, i, codec_dai) { /* @@ -442,27 +500,28 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) /* * chan min/max cannot be enforced if there are multiple CODEC DAIs - * connected to a single CPU DAI, use CPU DAI's directly and let + * connected to CPU DAI(s), use CPU DAI's directly and let * channel allocation be fixed up later */ if (rtd->num_codecs > 1) { - chan_min = cpu_stream->channels_min; - chan_max = cpu_stream->channels_max; + chan_min = cpu_chan_min; + chan_max = cpu_chan_max; } - hw->channels_min = max(chan_min, cpu_stream->channels_min); - hw->channels_max = min(chan_max, cpu_stream->channels_max); + /* finally find a intersection between CODECs and CPUs */ + hw->channels_min = max(chan_min, cpu_chan_min); + hw->channels_max = min(chan_max, cpu_chan_max); if (hw->formats) - hw->formats &= formats & cpu_stream->formats; + hw->formats &= formats; else - hw->formats = formats & cpu_stream->formats; - hw->rates = snd_pcm_rate_mask_intersect(rates, cpu_stream->rates); + hw->formats = formats; + hw->rates = snd_pcm_rate_mask_intersect(rates, cpu_rates); snd_pcm_limit_hw_rates(runtime); - hw->rate_min = max(hw->rate_min, cpu_stream->rate_min); + hw->rate_min = max(hw->rate_min, cpu_rate_min); hw->rate_min = max(hw->rate_min, rate_min); - hw->rate_max = min_not_zero(hw->rate_max, cpu_stream->rate_max); + hw->rate_max = min_not_zero(hw->rate_max, cpu_rate_max); hw->rate_max = min_not_zero(hw->rate_max, rate_max); } @@ -526,7 +585,7 @@ static int soc_pcm_close(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_component *component; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; int i; @@ -534,9 +593,11 @@ static int soc_pcm_close(struct snd_pcm_substream *substream) snd_soc_runtime_deactivate(rtd, substream->stream); - snd_soc_dai_digital_mute(cpu_dai, 1, substream->stream); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + snd_soc_dai_digital_mute(cpu_dai, 1, substream->stream); - snd_soc_dai_shutdown(cpu_dai, substream); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + snd_soc_dai_shutdown(cpu_dai, substream); for_each_rtd_codec_dai(rtd, i, codec_dai) snd_soc_dai_shutdown(codec_dai, substream); @@ -571,9 +632,10 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_component *component; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; const char *codec_dai_name = "multicodec"; + const char *cpu_dai_name = "multicpu"; int i, ret = 0; for_each_rtd_components(rtd, i, component) @@ -596,11 +658,13 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) } /* startup the audio subsystem */ - ret = snd_soc_dai_startup(cpu_dai, substream); - if (ret < 0) { - dev_err(cpu_dai->dev, "ASoC: can't open interface %s: %d\n", - cpu_dai->name, ret); - goto cpu_dai_err; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + ret = snd_soc_dai_startup(cpu_dai, substream); + if (ret < 0) { + dev_err(cpu_dai->dev, "ASoC: can't open interface %s: %d\n", + cpu_dai->name, ret); + goto cpu_dai_err; + } } for_each_rtd_codec_dai(rtd, i, codec_dai) { @@ -628,34 +692,39 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) if (rtd->num_codecs == 1) codec_dai_name = rtd->codec_dai->name; + if (rtd->num_cpus == 1) + cpu_dai_name = rtd->cpu_dai->name; + if (soc_pcm_has_symmetry(substream)) runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; ret = -EINVAL; if (!runtime->hw.rates) { printk(KERN_ERR "ASoC: %s <-> %s No matching rates\n", - codec_dai_name, cpu_dai->name); + codec_dai_name, cpu_dai_name); goto config_err; } if (!runtime->hw.formats) { printk(KERN_ERR "ASoC: %s <-> %s No matching formats\n", - codec_dai_name, cpu_dai->name); + codec_dai_name, cpu_dai_name); goto config_err; } if (!runtime->hw.channels_min || !runtime->hw.channels_max || runtime->hw.channels_min > runtime->hw.channels_max) { printk(KERN_ERR "ASoC: %s <-> %s No matching channels\n", - codec_dai_name, cpu_dai->name); + codec_dai_name, cpu_dai_name); goto config_err; } soc_pcm_apply_msb(substream); /* Symmetry only applies if we've already got an active stream. */ - if (cpu_dai->active) { - ret = soc_pcm_apply_symmetry(substream, cpu_dai); - if (ret != 0) - goto config_err; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (cpu_dai->active) { + ret = soc_pcm_apply_symmetry(substream, cpu_dai); + if (ret != 0) + goto config_err; + } } for_each_rtd_codec_dai(rtd, i, codec_dai) { @@ -667,7 +736,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) } pr_debug("ASoC: %s <-> %s info:\n", - codec_dai_name, cpu_dai->name); + codec_dai_name, cpu_dai_name); pr_debug("ASoC: rate mask 0x%x\n", runtime->hw.rates); pr_debug("ASoC: min ch %d max ch %d\n", runtime->hw.channels_min, runtime->hw.channels_max); @@ -684,8 +753,10 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) config_err: for_each_rtd_codec_dai(rtd, i, codec_dai) snd_soc_dai_shutdown(codec_dai, substream); + i = rtd->num_cpus; cpu_dai_err: - snd_soc_dai_shutdown(cpu_dai, substream); + for_each_rtd_cpu_dai_rollback(rtd, i, cpu_dai) + snd_soc_dai_shutdown(cpu_dai, substream); soc_rtd_shutdown(rtd, substream); component_err: @@ -724,7 +795,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_component *component; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; int i, ret = 0; @@ -756,11 +827,13 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream) } } - ret = snd_soc_dai_prepare(cpu_dai, substream); - if (ret < 0) { - dev_err(cpu_dai->dev, - "ASoC: cpu DAI prepare error: %d\n", ret); - goto out; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + ret = snd_soc_dai_prepare(cpu_dai, substream); + if (ret < 0) { + dev_err(cpu_dai->dev, + "ASoC: cpu DAI prepare error: %d\n", ret); + goto out; + } } /* cancel any delayed stream shutdown that is pending */ @@ -776,7 +849,8 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream) for_each_rtd_codec_dai(rtd, i, codec_dai) snd_soc_dai_digital_mute(codec_dai, 0, substream->stream); - snd_soc_dai_digital_mute(cpu_dai, 0, substream->stream); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + snd_soc_dai_digital_mute(cpu_dai, 0, substream->stream); out: mutex_unlock(&rtd->card->pcm_mutex); @@ -823,7 +897,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_component *component; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; int i, ret = 0; @@ -887,17 +961,19 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, snd_soc_dapm_update_dai(substream, &codec_params, codec_dai); } - ret = snd_soc_dai_hw_params(cpu_dai, substream, params); - if (ret < 0) - goto interface_err; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + ret = snd_soc_dai_hw_params(cpu_dai, substream, params); + if (ret < 0) + goto interface_err; - /* store the parameters for each DAIs */ - cpu_dai->rate = params_rate(params); - cpu_dai->channels = params_channels(params); - cpu_dai->sample_bits = - snd_pcm_format_physical_width(params_format(params)); + /* store the parameters for each DAI */ + cpu_dai->rate = params_rate(params); + cpu_dai->channels = params_channels(params); + cpu_dai->sample_bits = + snd_pcm_format_physical_width(params_format(params)); - snd_soc_dapm_update_dai(substream, params, cpu_dai); + snd_soc_dapm_update_dai(substream, params, cpu_dai); + } for_each_rtd_components(rtd, i, component) { ret = snd_soc_component_hw_params(component, substream, params); @@ -917,10 +993,14 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, component_err: soc_pcm_components_hw_free(substream, component); - snd_soc_dai_hw_free(cpu_dai, substream); - cpu_dai->rate = 0; + i = rtd->num_cpus; interface_err: + for_each_rtd_cpu_dai_rollback(rtd, i, cpu_dai) { + snd_soc_dai_hw_free(cpu_dai, substream); + cpu_dai->rate = 0; + } + i = rtd->num_codecs; codec_err: @@ -944,7 +1024,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, static int soc_pcm_hw_free(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; bool playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; int i; @@ -952,10 +1032,12 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream) mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); /* clear the corresponding DAIs parameters when going to be inactive */ - if (cpu_dai->active == 1) { - cpu_dai->rate = 0; - cpu_dai->channels = 0; - cpu_dai->sample_bits = 0; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (cpu_dai->active == 1) { + cpu_dai->rate = 0; + cpu_dai->channels = 0; + cpu_dai->sample_bits = 0; + } } for_each_rtd_codec_dai(rtd, i, codec_dai) { @@ -991,7 +1073,8 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream) snd_soc_dai_hw_free(codec_dai, substream); } - snd_soc_dai_hw_free(cpu_dai, substream); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + snd_soc_dai_hw_free(cpu_dai, substream); mutex_unlock(&rtd->card->pcm_mutex); return 0; @@ -1001,7 +1084,7 @@ static int soc_pcm_trigger_start(struct snd_pcm_substream *substream, int cmd) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_component *component; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; int i, ret; @@ -1015,9 +1098,11 @@ static int soc_pcm_trigger_start(struct snd_pcm_substream *substream, int cmd) return ret; } - ret = snd_soc_dai_trigger(cpu_dai, substream, cmd); - if (ret < 0) - return ret; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + ret = snd_soc_dai_trigger(cpu_dai, substream, cmd); + if (ret < 0) + return ret; + } for_each_rtd_codec_dai(rtd, i, codec_dai) { ret = snd_soc_dai_trigger(codec_dai, substream, cmd); @@ -1032,7 +1117,7 @@ static int soc_pcm_trigger_stop(struct snd_pcm_substream *substream, int cmd) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_component *component; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; int i, ret; @@ -1042,9 +1127,11 @@ static int soc_pcm_trigger_stop(struct snd_pcm_substream *substream, int cmd) return ret; } - ret = snd_soc_dai_trigger(cpu_dai, substream, cmd); - if (ret < 0) - return ret; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + ret = snd_soc_dai_trigger(cpu_dai, substream, cmd); + if (ret < 0) + return ret; + } for_each_rtd_components(rtd, i, component) { ret = snd_soc_component_trigger(component, substream, cmd); @@ -1085,7 +1172,7 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, int cmd) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; int i, ret; @@ -1095,9 +1182,11 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, return ret; } - ret = snd_soc_dai_bespoke_trigger(cpu_dai, substream, cmd); - if (ret < 0) - return ret; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + ret = snd_soc_dai_bespoke_trigger(cpu_dai, substream, cmd); + if (ret < 0) + return ret; + } return 0; } @@ -1109,12 +1198,13 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; struct snd_pcm_runtime *runtime = substream->runtime; snd_pcm_uframes_t offset = 0; snd_pcm_sframes_t delay = 0; snd_pcm_sframes_t codec_delay = 0; + snd_pcm_sframes_t cpu_delay = 0; int i; /* clearing the previous total delay */ @@ -1125,7 +1215,11 @@ static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) /* base delay if assigned in pointer callback */ delay = runtime->delay; - delay += snd_soc_dai_delay(cpu_dai, substream); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + cpu_delay = max(cpu_delay, + snd_soc_dai_delay(cpu_dai, substream)); + } + delay += cpu_delay; for_each_rtd_codec_dai(rtd, i, codec_dai) { codec_delay = max(codec_delay, @@ -1261,13 +1355,12 @@ static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, if (!be->dai_link->no_pcm) continue; - w = dai_get_widget(be->cpu_dai, stream); - - dev_dbg(card->dev, "ASoC: try BE : %s\n", - w ? w->name : "(not set)"); + for_each_rtd_cpu_dai(be, i, dai) { + w = dai_get_widget(dai, stream); - if (w == widget) - return be; + if (w == widget) + return be; + } for_each_rtd_codec_dai(be, i, dai) { w = dai_get_widget(dai, stream); @@ -1347,10 +1440,18 @@ static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, unsigned int i; /* is there a valid CPU DAI widget for this BE */ - widget = dai_get_widget(dpcm->be->cpu_dai, stream); + do_prune = 1; + for_each_rtd_cpu_dai(dpcm->be, i, dai) { + widget = dai_get_widget(dai, stream); - /* prune the BE if it's no longer in our active list */ - if (widget && widget_in_list(list, widget)) + /* + * The BE is pruned only if none of the cpu_dai + * widgets are in the active list. + */ + if (widget && widget_in_list(list, widget)) + do_prune = 0; + } + if (!do_prune) continue; /* is there a valid CODEC DAI widget for this BE */ @@ -1650,18 +1751,25 @@ static void dpcm_runtime_merge_chan(struct snd_pcm_substream *substream, for_each_dpcm_be(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; - struct snd_soc_dai_driver *cpu_dai_drv = be->cpu_dai->driver; + struct snd_soc_dai_driver *cpu_dai_drv; struct snd_soc_dai_driver *codec_dai_drv; struct snd_soc_pcm_stream *codec_stream; struct snd_soc_pcm_stream *cpu_stream; + struct snd_soc_dai *dai; + int i; - if (stream == SNDRV_PCM_STREAM_PLAYBACK) - cpu_stream = &cpu_dai_drv->playback; - else - cpu_stream = &cpu_dai_drv->capture; + for_each_rtd_cpu_dai(be, i, dai) { + cpu_dai_drv = dai->driver; + if (stream == SNDRV_PCM_STREAM_PLAYBACK) + cpu_stream = &cpu_dai_drv->playback; + else + cpu_stream = &cpu_dai_drv->capture; - *channels_min = max(*channels_min, cpu_stream->channels_min); - *channels_max = min(*channels_max, cpu_stream->channels_max); + *channels_min = max(*channels_min, + cpu_stream->channels_min); + *channels_max = min(*channels_max, + cpu_stream->channels_max); + } /* * chan min/max cannot be enforced if there are multiple CODEC @@ -1702,21 +1810,26 @@ static void dpcm_runtime_merge_rate(struct snd_pcm_substream *substream, for_each_dpcm_be(fe, stream, dpcm) { struct snd_soc_pcm_runtime *be = dpcm->be; - struct snd_soc_dai_driver *cpu_dai_drv = be->cpu_dai->driver; + struct snd_soc_dai_driver *cpu_dai_drv; struct snd_soc_dai_driver *codec_dai_drv; struct snd_soc_pcm_stream *codec_stream; struct snd_soc_pcm_stream *cpu_stream; struct snd_soc_dai *dai; int i; - if (stream == SNDRV_PCM_STREAM_PLAYBACK) - cpu_stream = &cpu_dai_drv->playback; - else - cpu_stream = &cpu_dai_drv->capture; + for_each_rtd_cpu_dai(be, i, dai) { + cpu_dai_drv = dai->driver; + if (stream == SNDRV_PCM_STREAM_PLAYBACK) + cpu_stream = &cpu_dai_drv->playback; + else + cpu_stream = &cpu_dai_drv->capture; - *rate_min = max(*rate_min, cpu_stream->rate_min); - *rate_max = min_not_zero(*rate_max, cpu_stream->rate_max); - *rates = snd_pcm_rate_mask_intersect(*rates, cpu_stream->rates); + *rate_min = max(*rate_min, cpu_stream->rate_min); + *rate_max = min_not_zero(*rate_max, + cpu_stream->rate_max); + *rates = snd_pcm_rate_mask_intersect(*rates, + cpu_stream->rates); + } for_each_rtd_codec_dai(be, i, dai) { /* @@ -1745,13 +1858,17 @@ static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; + struct snd_soc_dai *cpu_dai; + struct snd_soc_dai_driver *cpu_dai_drv; + int i; - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback); - else - dpcm_init_runtime_hw(runtime, &cpu_dai_drv->capture); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + cpu_dai_drv = cpu_dai->driver; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback); + else + dpcm_init_runtime_hw(runtime, &cpu_dai_drv->capture); + } dpcm_runtime_merge_format(substream, &runtime->hw.formats); dpcm_runtime_merge_chan(substream, &runtime->hw.channels_min, @@ -1809,6 +1926,7 @@ static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream, snd_soc_dpcm_get_substream(be, stream); struct snd_soc_pcm_runtime *rtd; struct snd_soc_dai *codec_dai; + struct snd_soc_dai *cpu_dai; int i; /* A backend may not have the requested substream */ @@ -1823,11 +1941,13 @@ static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream, be_substream->runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; /* Symmetry only applies if we've got an active stream. */ - if (rtd->cpu_dai->active) { - err = soc_pcm_apply_symmetry(fe_substream, - rtd->cpu_dai); - if (err < 0) - return err; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (cpu_dai->active) { + err = soc_pcm_apply_symmetry(fe_substream, + cpu_dai); + if (err < 0) + return err; + } } for_each_rtd_codec_dai(rtd, i, codec_dai) { @@ -2763,7 +2883,7 @@ static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream) int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) { struct snd_soc_dai *codec_dai; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_component *component; struct snd_pcm *pcm; char new_name[64]; @@ -2781,6 +2901,16 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; for_each_rtd_codec_dai(rtd, i, codec_dai) { + if (rtd->num_cpus == 1) { + cpu_dai = rtd->cpu_dais[0]; + } else if (rtd->num_cpus == rtd->num_codecs) { + cpu_dai = rtd->cpu_dais[i]; + } else { + dev_err(rtd->card->dev, + "N cpus to M codecs link is not supported yet\n"); + return -EINVAL; + } + if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_PLAYBACK) && snd_soc_dai_stream_valid(cpu_dai, cpu_playback)) playback = 1; @@ -2901,7 +3031,7 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) out: dev_info(rtd->card->dev, "%s <-> %s mapping ok\n", (rtd->num_codecs > 1) ? "multicodec" : rtd->codec_dai->name, - cpu_dai->name); + (rtd->num_cpus > 1) ? "multicpu" : rtd->cpu_dai->name); return ret; } From ab98fab5cccbac1746e62b7cfd89eb21f2572559 Mon Sep 17 00:00:00 2001 From: Shreyas NC Date: Mon, 20 Jan 2020 21:29:25 +0800 Subject: [PATCH 04/20] ASoC: Add dapm_add_valid_dai_widget helper Adding a helper to connect widget for a specific cpu and codec dai The helper will help dapm_connect_dai_link_widgets() to reduce indents. Signed-off-by: Vinod Koul Signed-off-by: Shreyas NC Signed-off-by: Kuninori Morimoto Signed-off-by: Bard Liao Signed-off-by: Pierre-Louis Bossart --- sound/soc/soc-dapm.c | 119 +++++++++++++++++++++++-------------------- 1 file changed, 63 insertions(+), 56 deletions(-) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 34c83268663766..360db602c0befa 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -4267,16 +4267,15 @@ int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) return 0; } -static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, - struct snd_soc_pcm_runtime *rtd) +static void dapm_add_valid_dai_widget(struct snd_soc_card *card, + struct snd_soc_pcm_runtime *rtd, + struct snd_soc_dai *codec_dai, + struct snd_soc_dai *cpu_dai) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct snd_soc_dai *codec_dai; struct snd_soc_dapm_widget *playback = NULL, *capture = NULL; struct snd_soc_dapm_widget *codec, *playback_cpu, *capture_cpu; struct snd_pcm_substream *substream; struct snd_pcm_str *streams = rtd->pcm->streams; - int i; if (rtd->dai_link->params) { playback_cpu = cpu_dai->capture_widget; @@ -4288,67 +4287,75 @@ static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, capture_cpu = capture; } - for_each_rtd_codec_dai(rtd, i, codec_dai) { - /* connect BE DAI playback if widgets are valid */ - codec = codec_dai->playback_widget; - - if (playback_cpu && codec) { - if (!playback) { - substream = streams[SNDRV_PCM_STREAM_PLAYBACK].substream; - playback = snd_soc_dapm_new_dai(card, substream, - "playback"); - if (IS_ERR(playback)) { - dev_err(rtd->dev, - "ASoC: Failed to create DAI %s: %ld\n", - codec_dai->name, - PTR_ERR(playback)); - continue; - } - - snd_soc_dapm_add_path(&card->dapm, playback_cpu, - playback, NULL, NULL); + /* connect BE DAI playback if widgets are valid */ + codec = codec_dai->playback_widget; + + if (playback_cpu && codec) { + if (!playback) { + substream = streams[SNDRV_PCM_STREAM_PLAYBACK].substream; + playback = snd_soc_dapm_new_dai(card, substream, + "playback"); + if (IS_ERR(playback)) { + dev_err(rtd->dev, + "ASoC: Failed to create DAI %s: %ld\n", + codec_dai->name, + PTR_ERR(playback)); + goto capture; } - dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", - cpu_dai->component->name, playback_cpu->name, - codec_dai->component->name, codec->name); - - snd_soc_dapm_add_path(&card->dapm, playback, codec, - NULL, NULL); + snd_soc_dapm_add_path(&card->dapm, playback_cpu, + playback, NULL, NULL); } - } - for_each_rtd_codec_dai(rtd, i, codec_dai) { - /* connect BE DAI capture if widgets are valid */ - codec = codec_dai->capture_widget; - - if (codec && capture_cpu) { - if (!capture) { - substream = streams[SNDRV_PCM_STREAM_CAPTURE].substream; - capture = snd_soc_dapm_new_dai(card, substream, - "capture"); - if (IS_ERR(capture)) { - dev_err(rtd->dev, - "ASoC: Failed to create DAI %s: %ld\n", - codec_dai->name, - PTR_ERR(capture)); - continue; - } - - snd_soc_dapm_add_path(&card->dapm, capture, - capture_cpu, NULL, NULL); + dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", + cpu_dai->component->name, playback_cpu->name, + codec_dai->component->name, codec->name); + + snd_soc_dapm_add_path(&card->dapm, playback, codec, + NULL, NULL); + } + +capture: + /* connect BE DAI capture if widgets are valid */ + codec = codec_dai->capture_widget; + + if (codec && capture_cpu) { + if (!capture) { + substream = streams[SNDRV_PCM_STREAM_CAPTURE].substream; + capture = snd_soc_dapm_new_dai(card, substream, + "capture"); + if (IS_ERR(capture)) { + dev_err(rtd->dev, + "ASoC: Failed to create DAI %s: %ld\n", + codec_dai->name, + PTR_ERR(capture)); + return; } - dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", - codec_dai->component->name, codec->name, - cpu_dai->component->name, capture_cpu->name); - - snd_soc_dapm_add_path(&card->dapm, codec, capture, - NULL, NULL); + snd_soc_dapm_add_path(&card->dapm, capture, + capture_cpu, NULL, NULL); } + + dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", + codec_dai->component->name, codec->name, + cpu_dai->component->name, capture_cpu->name); + + snd_soc_dapm_add_path(&card->dapm, codec, capture, + NULL, NULL); } } +static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, + struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai *codec_dai; + int i; + + for_each_rtd_codec_dai(rtd, i, codec_dai) + dapm_add_valid_dai_widget(card, rtd, + codec_dai, rtd->cpu_dais[0]); +} + static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, int event) { From 5005d5826aeae0c47d1ed2b16c1cd52e1dbd53ba Mon Sep 17 00:00:00 2001 From: Shreyas NC Date: Mon, 20 Jan 2020 21:29:26 +0800 Subject: [PATCH 05/20] ASoC: Add multiple CPU DAI support in DAPM DAPM handles DAIs during soc_dapm_stream_event() and during addition and creation of DAI widgets i.e., dapm_add_valid_dai_widget() and dapm_connect_dai_link_widgets(). Extend these functions to handle multiple cpu dai. Signed-off-by: Vinod Koul Signed-off-by: Shreyas NC Signed-off-by: Kuninori Morimoto Signed-off-by: Bard Liao Signed-off-by: Pierre-Louis Bossart --- sound/soc/soc-dapm.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 360db602c0befa..3a7dbbbd4a7666 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -4351,9 +4351,19 @@ static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, struct snd_soc_dai *codec_dai; int i; - for_each_rtd_codec_dai(rtd, i, codec_dai) - dapm_add_valid_dai_widget(card, rtd, - codec_dai, rtd->cpu_dais[0]); + if (rtd->num_cpus == 1) { + for_each_rtd_codec_dai(rtd, i, codec_dai) + dapm_add_valid_dai_widget(card, rtd, codec_dai, + rtd->cpu_dais[0]); + } else if (rtd->num_codecs == rtd->num_cpus) { + for_each_rtd_codec_dai(rtd, i, codec_dai) + dapm_add_valid_dai_widget(card, rtd, codec_dai, + rtd->cpu_dais[i]); + } else { + dev_err(card->dev, + "N cpus to M codecs link is not supported yet\n"); + } + } static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, @@ -4417,9 +4427,11 @@ static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, int event) { struct snd_soc_dai *codec_dai; + struct snd_soc_dai *cpu_dai; int i; - soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); for_each_rtd_codec_dai(rtd, i, codec_dai) soc_dapm_dai_stream_event(codec_dai, stream, event); From d514a91bd9bdaf5cd01a51f662baa0974b6873ef Mon Sep 17 00:00:00 2001 From: Bard Liao Date: Mon, 20 Jan 2020 21:29:27 +0800 Subject: [PATCH 06/20] ASoC: Return error if the function does not support multi-cpu Multi cpu is not supported by all functions yet. Add an error message and return. Suggested-by: Kuninori Morimoto Signed-off-by: Bard Liao Signed-off-by: Pierre-Louis Bossart --- sound/soc/soc-compress.c | 5 +++-- sound/soc/soc-generic-dmaengine-pcm.c | 18 ++++++++++++++++++ sound/soc/soc-pcm.c | 18 ++++++++++++++++++ 3 files changed, 39 insertions(+), 2 deletions(-) diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index 223cd045719e8d..d05e78e963752c 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -810,9 +810,10 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) int playback = 0, capture = 0; int i; - if (rtd->num_codecs > 1) { + if (rtd->num_cpus > 1 || + rtd->num_codecs > 1) { dev_err(rtd->card->dev, - "Compress ASoC: Multicodec not supported\n"); + "Compress ASoC: Multi CPU/Codec not supported\n"); return -EINVAL; } diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c index d6b4831e8aec9e..247dce88dd2419 100644 --- a/sound/soc/soc-generic-dmaengine-pcm.c +++ b/sound/soc/soc-generic-dmaengine-pcm.c @@ -62,6 +62,12 @@ int snd_dmaengine_pcm_prepare_slave_config(struct snd_pcm_substream *substream, struct snd_dmaengine_dai_dma_data *dma_data; int ret; + if (rtd->num_cpus > 1) { + dev_err(rtd->dev, + "%s doesn't support Multi CPU yet\n", __func__); + return -EINVAL; + } + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); ret = snd_hwparams_to_dma_slave_config(substream, params, slave_config); @@ -118,6 +124,12 @@ dmaengine_pcm_set_runtime_hwparams(struct snd_soc_component *component, struct snd_dmaengine_dai_dma_data *dma_data; struct snd_pcm_hardware hw; + if (rtd->num_cpus > 1) { + dev_err(rtd->dev, + "%s doesn't support Multi CPU yet\n", __func__); + return -EINVAL; + } + if (pcm->config && pcm->config->pcm_hardware) return snd_soc_set_runtime_hwparams(substream, pcm->config->pcm_hardware); @@ -185,6 +197,12 @@ static struct dma_chan *dmaengine_pcm_compat_request_channel( struct snd_dmaengine_dai_dma_data *dma_data; dma_filter_fn fn = NULL; + if (rtd->num_cpus > 1) { + dev_err(rtd->dev, + "%s doesn't support Multi CPU yet\n", __func__); + return -EINVAL; + } + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream); if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) && pcm->chan[0]) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index b56e856e31c171..70402a058bf429 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1415,6 +1415,12 @@ int dpcm_path_get(struct snd_soc_pcm_runtime *fe, struct snd_soc_dai *cpu_dai = fe->cpu_dai; int paths; + if (fe->num_cpus > 1) { + dev_err(fe->dev, + "%s doesn't support Multi CPU yet\n", __func__); + return -EINVAL; + } + /* get number of valid DAI paths and their widgets */ paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, list, dpcm_end_walk_at_be); @@ -2742,6 +2748,12 @@ static int soc_dpcm_fe_runtime_update(struct snd_soc_pcm_runtime *fe, int new) int stream; int count, paths; + if (fe->num_cpus > 1) { + dev_err(fe->dev, + "%s doesn't support Multi CPU yet\n", __func__); + return -EINVAL; + } + if (!fe->dai_link->dynamic) return 0; @@ -3228,6 +3240,12 @@ static ssize_t dpcm_state_read_file(struct file *file, char __user *user_buf, int stream; char *buf; + if (fe->num_cpus > 1) { + dev_err(fe->dev, + "%s doesn't support Multi CPU yet\n", __func__); + return -EINVAL; + } + buf = kmalloc(out_count, GFP_KERNEL); if (!buf) return -ENOMEM; From 4097910d5bc262a073026aafc48961acec191914 Mon Sep 17 00:00:00 2001 From: Bard Liao Date: Mon, 20 Jan 2020 21:29:28 +0800 Subject: [PATCH 07/20] ASoC: pcm: check if cpu-dai supports a given stream Now multi-cpu-dais are supported, we can skip cpi-dais which don't support the current stream, following the example of multi-codec-dais. Signed-off-by: Bard Liao Signed-off-by: Pierre-Louis Bossart --- sound/soc/soc-pcm.c | 51 ++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 50 insertions(+), 1 deletion(-) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 70402a058bf429..7d769583d3c328 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -455,6 +455,20 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) /* first calculate min/max only for CPUs in the DAI link */ for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + + /* + * Skip CPUs which don't support the current stream type. + * Otherwise, since the rate, channel, and format values will + * zero in that case, we would have no usable settings left, + * causing the resulting setup to fail. + * At least one CPU should match, otherwise we should have + * bailed out on a higher level, since there would be no + * CPU to support the transfer direction in that case. + */ + if (!snd_soc_dai_stream_valid(cpu_dai, + substream->stream)) + continue; + cpu_dai_drv = cpu_dai->driver; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) cpu_stream = &cpu_dai_drv->playback; @@ -962,6 +976,13 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, } for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + /* + * Skip CPUs which don't support the current stream + * type. See soc_pcm_init_runtime_hw() for more details + */ + if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream)) + continue; + ret = snd_soc_dai_hw_params(cpu_dai, substream, params); if (ret < 0) goto interface_err; @@ -997,6 +1018,9 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, interface_err: for_each_rtd_cpu_dai_rollback(rtd, i, cpu_dai) { + if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream)) + continue; + snd_soc_dai_hw_free(cpu_dai, substream); cpu_dai->rate = 0; } @@ -1073,8 +1097,12 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream) snd_soc_dai_hw_free(codec_dai, substream); } - for_each_rtd_cpu_dai(rtd, i, cpu_dai) + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream)) + continue; + snd_soc_dai_hw_free(cpu_dai, substream); + } mutex_unlock(&rtd->card->pcm_mutex); return 0; @@ -1765,6 +1793,13 @@ static void dpcm_runtime_merge_chan(struct snd_pcm_substream *substream, int i; for_each_rtd_cpu_dai(be, i, dai) { + /* + * Skip CPUs which don't support the current stream + * type. See soc_pcm_init_runtime_hw() for more details + */ + if (!snd_soc_dai_stream_valid(dai, stream)) + continue; + cpu_dai_drv = dai->driver; if (stream == SNDRV_PCM_STREAM_PLAYBACK) cpu_stream = &cpu_dai_drv->playback; @@ -1824,6 +1859,13 @@ static void dpcm_runtime_merge_rate(struct snd_pcm_substream *substream, int i; for_each_rtd_cpu_dai(be, i, dai) { + /* + * Skip CPUs which don't support the current stream + * type. See soc_pcm_init_runtime_hw() for more details + */ + if (!snd_soc_dai_stream_valid(dai, stream)) + continue; + cpu_dai_drv = dai->driver; if (stream == SNDRV_PCM_STREAM_PLAYBACK) cpu_stream = &cpu_dai_drv->playback; @@ -1869,6 +1911,13 @@ static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream) int i; for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + /* + * Skip CPUs which don't support the current stream + * type. See soc_pcm_init_runtime_hw() for more details + */ + if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream)) + continue; + cpu_dai_drv = cpu_dai->driver; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback); From 0d5413a8a6057414aee70cc21cd18f55f49ca287 Mon Sep 17 00:00:00 2001 From: Bard Liao Date: Tue, 18 Feb 2020 15:54:55 +0800 Subject: [PATCH 08/20] ASoC: SOF: topology: connect dai widget to all cpu-dais Extend code from single cpu-dai to multi-dai Signed-off-by: Bard Liao Signed-off-by: Pierre-Louis Bossart --- sound/soc/sof/topology.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c index 9f4f8868b3860b..7dfd5b2851dff5 100644 --- a/sound/soc/sof/topology.c +++ b/sound/soc/sof/topology.c @@ -1240,6 +1240,8 @@ static int sof_connect_dai_widget(struct snd_soc_component *scomp, { struct snd_soc_card *card = scomp->card; struct snd_soc_pcm_runtime *rtd; + struct snd_soc_dai *cpu_dai; + int i; list_for_each_entry(rtd, &card->rtd_list, list) { dev_vdbg(scomp->dev, "tplg: check widget: %s stream: %s dai stream: %s\n", @@ -1254,13 +1256,15 @@ static int sof_connect_dai_widget(struct snd_soc_component *scomp, switch (w->id) { case snd_soc_dapm_dai_out: - rtd->cpu_dai->capture_widget = w; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + cpu_dai->capture_widget = w; dai->name = rtd->dai_link->name; dev_dbg(scomp->dev, "tplg: connected widget %s -> DAI link %s\n", w->name, rtd->dai_link->name); break; case snd_soc_dapm_dai_in: - rtd->cpu_dai->playback_widget = w; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + cpu_dai->playback_widget = w; dai->name = rtd->dai_link->name; dev_dbg(scomp->dev, "tplg: connected widget %s -> DAI link %s\n", w->name, rtd->dai_link->name); From c2e38f124c6284c34da326b08de8c4342c26dd89 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Wed, 19 Feb 2020 18:48:15 -0600 Subject: [PATCH 09/20] soundwire: cadence: remove useless prototypes These prototypes are no longer used, remove. Signed-off-by: Pierre-Louis Bossart --- drivers/soundwire/cadence_master.h | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/soundwire/cadence_master.h b/drivers/soundwire/cadence_master.h index 6be92badcb5af8..fdec62b912d3b1 100644 --- a/drivers/soundwire/cadence_master.h +++ b/drivers/soundwire/cadence_master.h @@ -163,20 +163,12 @@ int sdw_cdns_clock_restart(struct sdw_cdns *cdns, bool bus_reset); void sdw_cdns_debugfs_init(struct sdw_cdns *cdns, struct dentry *root); #endif -int sdw_cdns_get_stream(struct sdw_cdns *cdns, - struct sdw_cdns_streams *stream, - u32 ch, u32 dir); struct sdw_cdns_pdi *sdw_cdns_alloc_pdi(struct sdw_cdns *cdns, struct sdw_cdns_streams *stream, u32 ch, u32 dir, int dai_id); void sdw_cdns_config_stream(struct sdw_cdns *cdns, u32 ch, u32 dir, struct sdw_cdns_pdi *pdi); -int sdw_cdns_pcm_set_stream(struct snd_soc_dai *dai, - void *stream, int direction); -int sdw_cdns_pdm_set_stream(struct snd_soc_dai *dai, - void *stream, int direction); - enum sdw_command_response cdns_reset_page_addr(struct sdw_bus *bus, unsigned int dev_num); From b3359e6001bfc475bfb76af86025de181986bac8 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Wed, 19 Feb 2020 17:29:07 -0600 Subject: [PATCH 10/20] soundwire: stream: only change state if needed In a multi-cpu DAI context, the stream routines may be called from multiple DAI callbacks. Make sure the stream state only changes for the first call, and don't return error messages if the target state is already reached. Signed-off-by: Pierre-Louis Bossart --- drivers/soundwire/stream.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c index e0e8e2985d7192..42e331d1b5a51e 100644 --- a/drivers/soundwire/stream.c +++ b/drivers/soundwire/stream.c @@ -1578,6 +1578,7 @@ int sdw_prepare_stream(struct sdw_stream_runtime *stream) sdw_acquire_bus_lock(stream); if (stream->state == SDW_STREAM_PREPARED) { + /* nothing to do */ ret = 0; goto state_err; } @@ -1667,6 +1668,12 @@ int sdw_enable_stream(struct sdw_stream_runtime *stream) sdw_acquire_bus_lock(stream); + if (stream->state == SDW_STREAM_ENABLED) { + /* nothing to do */ + ret = 0; + goto state_err; + } + if (stream->state != SDW_STREAM_PREPARED && stream->state != SDW_STREAM_DISABLED) { pr_err("%s: %s: inconsistent state state %d\n", @@ -1750,6 +1757,12 @@ int sdw_disable_stream(struct sdw_stream_runtime *stream) sdw_acquire_bus_lock(stream); + if (stream->state == SDW_STREAM_DISABLED) { + /* nothing to do */ + ret = 0; + goto state_err; + } + if (stream->state != SDW_STREAM_ENABLED) { pr_err("%s: %s: inconsistent state state %d\n", __func__, stream->name, stream->state); @@ -1825,6 +1838,12 @@ int sdw_deprepare_stream(struct sdw_stream_runtime *stream) sdw_acquire_bus_lock(stream); + if (stream->state == SDW_STREAM_DEPREPARED) { + /* nothing to do */ + ret = 0; + goto state_err; + } + if (stream->state != SDW_STREAM_PREPARED && stream->state != SDW_STREAM_DISABLED) { pr_err("%s: %s: inconsistent state state %d\n", From b27f0d8221dcc0c4632a1b2a41912502a4d862a3 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Wed, 19 Feb 2020 18:33:49 -0600 Subject: [PATCH 11/20] ASoC: soc-dai: add get_sdw_stream() callback We only have a set() operation, provide the dual get() operation to retrieve the stream information. Signed-off-by: Pierre-Louis Bossart --- include/sound/soc-dai.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h index 7481e468be3916..41f6668d282de1 100644 --- a/include/sound/soc-dai.h +++ b/include/sound/soc-dai.h @@ -202,6 +202,8 @@ struct snd_soc_dai_ops { int (*set_sdw_stream)(struct snd_soc_dai *dai, void *stream, int direction); + void *(*get_sdw_stream)(struct snd_soc_dai *dai, int direction); + /* * DAI digital mute - optional. * Called by soc-core to minimise any pops. @@ -408,4 +410,23 @@ static inline int snd_soc_dai_set_sdw_stream(struct snd_soc_dai *dai, return -ENOTSUPP; } +/** + * snd_soc_dai_get_sdw_stream() - Retrieves SDW stream from DAI + * @dai: DAI + * @direction: Stream direction(Playback/Capture) + * + * This routine only retrieves that was previously configured + * with snd_soc_dai_get_sdw_stream() + * + * Returns pointer to stream or NULL; + */ +static inline void *snd_soc_dai_get_sdw_stream(struct snd_soc_dai *dai, + int direction) +{ + if (dai->driver->ops->get_sdw_stream) + return dai->driver->ops->get_sdw_stream(dai, direction); + else + return NULL; +} + #endif From eeef7030c4ea16cfd6227977ab4cfa3b71729f22 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Wed, 19 Feb 2020 19:28:58 -0600 Subject: [PATCH 12/20] soundwire: intel: implement get_sdw_stream() operations This is needed to retrieve the information when the stream is allocated at the dai_link level. Signed-off-by: Pierre-Louis Bossart --- drivers/soundwire/intel.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index 5154e89525c5a3..5456b79350dfe2 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -1206,6 +1206,22 @@ static int intel_pdm_set_sdw_stream(struct snd_soc_dai *dai, return cdns_set_sdw_stream(dai, stream, false, direction); } +static void *intel_get_sdw_stream(struct snd_soc_dai *dai, + int direction) +{ + struct sdw_cdns_dma_data *dma; + + if (direction == SNDRV_PCM_STREAM_PLAYBACK) + dma = dai->playback_dma_data; + else + dma = dai->capture_dma_data; + + if (!dma) + return NULL; + + return dma->stream; +} + static const struct snd_soc_dai_ops intel_pcm_dai_ops = { .startup = intel_startup, .hw_params = intel_hw_params, @@ -1214,6 +1230,7 @@ static const struct snd_soc_dai_ops intel_pcm_dai_ops = { .hw_free = intel_hw_free, .shutdown = intel_shutdown, .set_sdw_stream = intel_pcm_set_sdw_stream, + .get_sdw_stream = intel_get_sdw_stream, }; static const struct snd_soc_dai_ops intel_pdm_dai_ops = { @@ -1224,6 +1241,7 @@ static const struct snd_soc_dai_ops intel_pdm_dai_ops = { .hw_free = intel_hw_free, .shutdown = intel_shutdown, .set_sdw_stream = intel_pdm_set_sdw_stream, + .get_sdw_stream = intel_get_sdw_stream, }; static const struct snd_soc_component_driver dai_component = { From 216ebe49db088b0d8fc7fd788fdb9d795ac228ba Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Wed, 19 Feb 2020 18:22:33 -0600 Subject: [PATCH 13/20] soundwire: stream: add helper to startup/shutdown streams To handle streams at the dailink level, expose two helpers that will be called from machine drivers. Signed-off-by: Pierre-Louis Bossart --- drivers/soundwire/stream.c | 102 ++++++++++++++++++++++++++++++++++ include/linux/soundwire/sdw.h | 2 + 2 files changed, 104 insertions(+) diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c index 42e331d1b5a51e..ce2c105c0ab4da 100644 --- a/drivers/soundwire/stream.c +++ b/drivers/soundwire/stream.c @@ -13,6 +13,9 @@ #include #include #include +#include +#include +#include #include "bus.h" /* @@ -1859,3 +1862,102 @@ int sdw_deprepare_stream(struct sdw_stream_runtime *stream) return ret; } EXPORT_SYMBOL(sdw_deprepare_stream); + +static int set_stream(struct snd_pcm_substream *substream, + struct sdw_stream_runtime *sdw_stream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *dai; + int ret = 0; + int i; + + /* Set stream pointer on all CPU DAIs */ + for (i = 0; i < rtd->num_cpus; i++) { + dai = rtd->cpu_dais[i]; + ret = snd_soc_dai_set_sdw_stream(dai, sdw_stream, + substream->stream); + if (ret < 0) { + dev_err(rtd->dev, "failed to set stream pointer on cpu dai %s", + dai->name); + goto err_stream; + } + } + + /* Set stream pointer on all CODEC DAIs */ + for (i = 0; i < rtd->num_codecs; i++) { + dai = rtd->codec_dais[i]; + ret = snd_soc_dai_set_sdw_stream(dai, sdw_stream, + substream->stream); + if (ret < 0) { + dev_err(dai->dev, "failed to set stream pointer on codec dai %s", + dai->name); + goto err_stream; + } + } + +err_stream: + return ret; +} + +int sdw_startup_stream(void *sdw_substream) +{ + struct snd_pcm_substream *substream = sdw_substream; + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct sdw_stream_runtime *sdw_stream; + char *name; + int ret; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + name = kasprintf(GFP_KERNEL, "%s-Playback", substream->name); + else + name = kasprintf(GFP_KERNEL, "%s-Capture", substream->name); + + if (!name) + return -ENOMEM; + + sdw_stream = sdw_alloc_stream(name); + if (!sdw_stream) { + dev_err(rtd->dev, "alloc stream failed for substream DAI %s", + substream->name); + ret = -ENOMEM; + goto error; + } + + ret = set_stream(substream, sdw_stream); + if (ret < 0) + goto release_stream; + return 0; + +release_stream: + sdw_release_stream(sdw_stream); + set_stream(substream, NULL); +error: + kfree(name); + return ret; +} +EXPORT_SYMBOL(sdw_startup_stream); + +void sdw_shutdown_stream(void *sdw_substream) +{ + struct snd_pcm_substream *substream = sdw_substream; + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct sdw_stream_runtime *sdw_stream; + struct snd_soc_dai *dai; + + /* Find stream from first CPU DAI */ + dai = rtd->cpu_dais[0]; + sdw_stream = snd_soc_dai_get_sdw_stream(dai, substream->stream); + + if (!sdw_stream) { + dev_err(rtd->dev, "no stream found for DAI %s", dai->name); + return; + } + + /* release memory */ + kfree(sdw_stream->name); + sdw_release_stream(sdw_stream); + + /* clear DAI data */ + set_stream(substream, NULL); +} +EXPORT_SYMBOL(sdw_shutdown_stream); diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h index ead36ef08c4cf1..da5ff7a23c33af 100644 --- a/include/linux/soundwire/sdw.h +++ b/include/linux/soundwire/sdw.h @@ -941,10 +941,12 @@ int sdw_stream_remove_master(struct sdw_bus *bus, struct sdw_stream_runtime *stream); int sdw_stream_remove_slave(struct sdw_slave *slave, struct sdw_stream_runtime *stream); +int sdw_startup_stream(void *sdw_substream); int sdw_prepare_stream(struct sdw_stream_runtime *stream); int sdw_enable_stream(struct sdw_stream_runtime *stream); int sdw_disable_stream(struct sdw_stream_runtime *stream); int sdw_deprepare_stream(struct sdw_stream_runtime *stream); +void sdw_shutdown_stream(void *sdw_substream); int sdw_bus_prep_clk_stop(struct sdw_bus *bus); int sdw_bus_clk_stop(struct sdw_bus *bus); int sdw_bus_exit_clk_stop(struct sdw_bus *bus); From f8914ba6249f65d2d1a540c9c9a28962ee01b879 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Wed, 19 Feb 2020 18:20:20 -0600 Subject: [PATCH 14/20] soundwire: intel: remove stream allocation/free To support streaming across multiple links, the stream allocation/free needs to be at the dailink level, not the dai. Signed-off-by: Pierre-Louis Bossart --- drivers/soundwire/intel.c | 57 ++------------------------------------- 1 file changed, 2 insertions(+), 55 deletions(-) diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index 5456b79350dfe2..810c51f1914392 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -869,57 +869,6 @@ static int intel_post_bank_switch(struct sdw_bus *bus) * DAI routines */ -static int sdw_stream_setup(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct sdw_stream_runtime *sdw_stream = NULL; - char *name; - int i, ret; - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - name = kasprintf(GFP_KERNEL, "%s-Playback", dai->name); - else - name = kasprintf(GFP_KERNEL, "%s-Capture", dai->name); - - if (!name) - return -ENOMEM; - - sdw_stream = sdw_alloc_stream(name); - if (!sdw_stream) { - dev_err(dai->dev, "alloc stream failed for DAI %s", dai->name); - ret = -ENOMEM; - goto error; - } - - /* Set stream pointer on CPU DAI */ - ret = snd_soc_dai_set_sdw_stream(dai, sdw_stream, substream->stream); - if (ret < 0) { - dev_err(dai->dev, "failed to set stream pointer on cpu dai %s", - dai->name); - goto release_stream; - } - - /* Set stream pointer on all CODEC DAIs */ - for (i = 0; i < rtd->num_codecs; i++) { - ret = snd_soc_dai_set_sdw_stream(rtd->codec_dais[i], sdw_stream, - substream->stream); - if (ret < 0) { - dev_err(dai->dev, "failed to set stream pointer on codec dai %s", - rtd->codec_dais[i]->name); - goto release_stream; - } - } - - return 0; - -release_stream: - sdw_release_stream(sdw_stream); -error: - kfree(name); - return ret; -} - static int intel_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { @@ -932,9 +881,9 @@ static int intel_startup(struct snd_pcm_substream *substream, "pm_runtime_get_sync failed in %s, ret %d\n", __func__, ret); pm_runtime_put_noidle(cdns->dev); + return ret; } - - return sdw_stream_setup(substream, dai); + return 0; } static int intel_hw_params(struct snd_pcm_substream *substream, @@ -1147,8 +1096,6 @@ intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) dma->hw_params = NULL; dma->pdi = NULL; - kfree(dma->stream->name); - sdw_release_stream(dma->stream); return 0; } From b5c329a8a05adb48648f73841f6f8e0ee9adb31f Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Thu, 20 Feb 2020 11:32:15 -0600 Subject: [PATCH 15/20] soundwire: cadence: allocate/free dma_data in set_sdw_stream The current memory allocation is somewhat strange: the dma_data is allocated in set_sdw_stream, but released in the intel DAI shutdown. This no longer works with the multi-cpu implementation, since the dma_data is released in the dai shutdown which takes place before the dailink shutdown. Move to a more symmetric allocation where the dma_data is allocated with non-NULL SoundWire stream, and conversely released when a NULL stream is provided - for consistency with the stream startup and shutdown operations. Signed-off-by: Pierre-Louis Bossart --- drivers/soundwire/cadence_master.c | 52 ++++++++++++++++++++++-------- 1 file changed, 38 insertions(+), 14 deletions(-) diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c index 6592327469b344..0d737079782c98 100644 --- a/drivers/soundwire/cadence_master.c +++ b/drivers/soundwire/cadence_master.c @@ -1445,25 +1445,49 @@ int cdns_set_sdw_stream(struct snd_soc_dai *dai, struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai); struct sdw_cdns_dma_data *dma; - dma = kzalloc(sizeof(*dma), GFP_KERNEL); - if (!dma) - return -ENOMEM; + if (stream) { + /* first paranoia check */ + if (direction == SNDRV_PCM_STREAM_PLAYBACK) + dma = dai->playback_dma_data; + else + dma = dai->capture_dma_data; + + if (dma) { + dev_err(dai->dev, + "dma_data already allocated for dai %s\n", + dai->name); + return -EINVAL; + } - if (pcm) - dma->stream_type = SDW_STREAM_PCM; - else - dma->stream_type = SDW_STREAM_PDM; + /* allocate and set dma info */ + dma = kzalloc(sizeof(*dma), GFP_KERNEL); + if (!dma) + return -ENOMEM; - dma->bus = &cdns->bus; - dma->link_id = cdns->instance; + if (pcm) + dma->stream_type = SDW_STREAM_PCM; + else + dma->stream_type = SDW_STREAM_PDM; - dma->stream = stream; + dma->bus = &cdns->bus; + dma->link_id = cdns->instance; - if (direction == SNDRV_PCM_STREAM_PLAYBACK) - dai->playback_dma_data = dma; - else - dai->capture_dma_data = dma; + dma->stream = stream; + if (direction == SNDRV_PCM_STREAM_PLAYBACK) + dai->playback_dma_data = dma; + else + dai->capture_dma_data = dma; + } else { + /* for NULL stream we release allocated dma_data */ + if (direction == SNDRV_PCM_STREAM_PLAYBACK) { + kfree(dai->playback_dma_data); + dai->playback_dma_data = NULL; + } else { + kfree(dai->capture_dma_data); + dai->capture_dma_data = NULL; + } + } return 0; } EXPORT_SYMBOL(cdns_set_sdw_stream); From 47b4921e3fa2389fead2798366d845e3f9a921a5 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Thu, 20 Feb 2020 11:37:02 -0600 Subject: [PATCH 16/20] soundwire: intel: don't free dma_data in DAI shutdown Now that the DMA data is allocated/freed in set_sdw_stream(), remove free operations. Signed-off-by: Pierre-Louis Bossart --- drivers/soundwire/intel.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index 810c51f1914392..2a78356418cb01 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -1103,16 +1103,8 @@ intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) static void intel_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { - struct sdw_cdns_dma_data *dma; struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai); - dma = snd_soc_dai_get_dma_data(dai, substream); - if (!dma) - return; - - snd_soc_dai_set_dma_data(dai, substream, NULL); - kfree(dma); - pm_runtime_mark_last_busy(cdns->dev); pm_runtime_put_autosuspend(cdns->dev); } From 4476a47113ab6e0ac3e64151ad26551b535c99ba Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Wed, 19 Feb 2020 19:44:25 -0600 Subject: [PATCH 17/20] ASoC: Intel: sdw_rt700: handle SoundWire stream creation in dailink Use .startup and .shutdown callback to allocate/free stream Signed-off-by: Pierre-Louis Bossart --- sound/soc/intel/boards/sdw_rt700.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/sound/soc/intel/boards/sdw_rt700.c b/sound/soc/intel/boards/sdw_rt700.c index be627ec10860e6..11a2f33afbb12a 100644 --- a/sound/soc/intel/boards/sdw_rt700.c +++ b/sound/soc/intel/boards/sdw_rt700.c @@ -22,6 +22,7 @@ #include #include #include +#include #include "../../codecs/hdac_hdmi.h" #include "hda_dsp_common.h" @@ -152,6 +153,22 @@ static int headset_init(struct snd_soc_pcm_runtime *rtd) return ret; } +/* these wrappers are only needed to avoid typecast compilation errors */ +static int sdw_startup(struct snd_pcm_substream *substream) +{ + return sdw_startup_stream(substream); +} + +static void sdw_shutdown(struct snd_pcm_substream *substream) +{ + sdw_shutdown_stream(substream); +} + +static const struct snd_soc_ops sdw_ops = { + .startup = sdw_startup, + .shutdown = sdw_shutdown, +}; + static const struct snd_soc_dapm_widget widgets[] = { SND_SOC_DAPM_HP("Headphones", NULL), SND_SOC_DAPM_MIC("AMIC", NULL), @@ -222,6 +239,7 @@ static struct snd_soc_dai_link dailink[] = { .no_pcm = 1, .dpcm_playback = 1, .nonatomic = true, + .ops = &sdw_ops, SND_SOC_DAILINK_REG(sdw0_pin2, sdw0_codec, platform), }, { @@ -230,6 +248,7 @@ static struct snd_soc_dai_link dailink[] = { .no_pcm = 1, .dpcm_capture = 1, .nonatomic = true, + .ops = &sdw_ops, SND_SOC_DAILINK_REG(sdw0_pin3, sdw0_codec, platform), }, { From fced8608e7b2769768ce0fa1fabb2a0ad79eba0c Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Wed, 19 Feb 2020 19:45:40 -0600 Subject: [PATCH 18/20] ASoC: Intel: sdw_rt711_rt1308_rt715: handle SoundWire stream creation in dailink Use .startup and .shutdown callback to allocate/free stream Signed-off-by: Pierre-Louis Bossart --- .../soc/intel/boards/sdw_rt711_rt1308_rt715.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/sound/soc/intel/boards/sdw_rt711_rt1308_rt715.c b/sound/soc/intel/boards/sdw_rt711_rt1308_rt715.c index cd3076a1aea8d5..e4f4c460cbccef 100644 --- a/sound/soc/intel/boards/sdw_rt711_rt1308_rt715.c +++ b/sound/soc/intel/boards/sdw_rt711_rt1308_rt715.c @@ -24,6 +24,7 @@ #include #include #include +#include #include "../../codecs/hdac_hdmi.h" #include "../../codecs/rt1308.h" #include "hda_dsp_common.h" @@ -456,6 +457,22 @@ static struct snd_soc_ops rt1308_i2s_ops = { .hw_params = rt1308_i2s_hw_params, }; +/* these wrappers are only needed to avoid typecast compilation errors */ +static int sdw_startup(struct snd_pcm_substream *substream) +{ + return sdw_startup_stream(substream); +} + +static void sdw_shutdown(struct snd_pcm_substream *substream) +{ + sdw_shutdown_stream(substream); +} + +static const struct snd_soc_ops sdw_ops = { + .startup = sdw_startup, + .shutdown = sdw_shutdown, +}; + static void rt711_init(const struct snd_soc_acpi_link_adr *link, struct snd_soc_dai_link *dai_links, struct codec_info *info, @@ -759,7 +776,7 @@ static int create_sdw_codec_dai(struct device *dev, return -ENOMEM; init_dai_link(dai_links, *id, name, 1 - i, i, cpus, cpu_name, - codec, link->num_adr, *id, NULL, NULL); + codec, link->num_adr, *id, NULL, &sdw_ops); set_codec_init_func(link, dai_links + *id, 1 - i); (*id)++; j++; From 352771c44927c6695e0ddb0a61cbcd33035f0ea7 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Thu, 20 Feb 2020 14:26:45 -0600 Subject: [PATCH 19/20] Revert "ASoC: pcm: check if cpu-dai supports a given stream" This reverts commit 4097910d5bc262a073026aafc48961acec191914. We will remove this revert when we figure out how to setup the channels_min, discussion at https://github.com/thesofproject/linux/issues/1812 Signed-off-by: Pierre-Louis Bossart --- sound/soc/soc-pcm.c | 51 +-------------------------------------------- 1 file changed, 1 insertion(+), 50 deletions(-) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 7d769583d3c328..70402a058bf429 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -455,20 +455,6 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) /* first calculate min/max only for CPUs in the DAI link */ for_each_rtd_cpu_dai(rtd, i, cpu_dai) { - - /* - * Skip CPUs which don't support the current stream type. - * Otherwise, since the rate, channel, and format values will - * zero in that case, we would have no usable settings left, - * causing the resulting setup to fail. - * At least one CPU should match, otherwise we should have - * bailed out on a higher level, since there would be no - * CPU to support the transfer direction in that case. - */ - if (!snd_soc_dai_stream_valid(cpu_dai, - substream->stream)) - continue; - cpu_dai_drv = cpu_dai->driver; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) cpu_stream = &cpu_dai_drv->playback; @@ -976,13 +962,6 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, } for_each_rtd_cpu_dai(rtd, i, cpu_dai) { - /* - * Skip CPUs which don't support the current stream - * type. See soc_pcm_init_runtime_hw() for more details - */ - if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream)) - continue; - ret = snd_soc_dai_hw_params(cpu_dai, substream, params); if (ret < 0) goto interface_err; @@ -1018,9 +997,6 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, interface_err: for_each_rtd_cpu_dai_rollback(rtd, i, cpu_dai) { - if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream)) - continue; - snd_soc_dai_hw_free(cpu_dai, substream); cpu_dai->rate = 0; } @@ -1097,12 +1073,8 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream) snd_soc_dai_hw_free(codec_dai, substream); } - for_each_rtd_cpu_dai(rtd, i, cpu_dai) { - if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream)) - continue; - + for_each_rtd_cpu_dai(rtd, i, cpu_dai) snd_soc_dai_hw_free(cpu_dai, substream); - } mutex_unlock(&rtd->card->pcm_mutex); return 0; @@ -1793,13 +1765,6 @@ static void dpcm_runtime_merge_chan(struct snd_pcm_substream *substream, int i; for_each_rtd_cpu_dai(be, i, dai) { - /* - * Skip CPUs which don't support the current stream - * type. See soc_pcm_init_runtime_hw() for more details - */ - if (!snd_soc_dai_stream_valid(dai, stream)) - continue; - cpu_dai_drv = dai->driver; if (stream == SNDRV_PCM_STREAM_PLAYBACK) cpu_stream = &cpu_dai_drv->playback; @@ -1859,13 +1824,6 @@ static void dpcm_runtime_merge_rate(struct snd_pcm_substream *substream, int i; for_each_rtd_cpu_dai(be, i, dai) { - /* - * Skip CPUs which don't support the current stream - * type. See soc_pcm_init_runtime_hw() for more details - */ - if (!snd_soc_dai_stream_valid(dai, stream)) - continue; - cpu_dai_drv = dai->driver; if (stream == SNDRV_PCM_STREAM_PLAYBACK) cpu_stream = &cpu_dai_drv->playback; @@ -1911,13 +1869,6 @@ static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream) int i; for_each_rtd_cpu_dai(rtd, i, cpu_dai) { - /* - * Skip CPUs which don't support the current stream - * type. See soc_pcm_init_runtime_hw() for more details - */ - if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream)) - continue; - cpu_dai_drv = cpu_dai->driver; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback); From 3578aae37bbe9446e4c28ae396b19ac1791f3d2b Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Fri, 21 Feb 2020 13:39:02 -0600 Subject: [PATCH 20/20] [SQUASHME] ASoC: soc-generic-dmaengine-pcm: fix integer/pointer confusion The patch 'ASoC: Return error if the function does not support multi-cpu' generates a warning sound/soc/soc-generic-dmaengine-pcm.c: In function 'dmaengine_pcm_compat_request_channel': >> sound/soc/soc-generic-dmaengine-pcm.c:203:10: warning: returning 'int' from a function with return type 'struct dma_chan *' makes pointer from integer without a cast [-Wint-conversion] 203 | return -EINVAL; | ^ Reported-by: kbuild test robot Signed-off-by: Pierre-Louis Bossart --- sound/soc/soc-generic-dmaengine-pcm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c index 247dce88dd2419..facf1922a714d9 100644 --- a/sound/soc/soc-generic-dmaengine-pcm.c +++ b/sound/soc/soc-generic-dmaengine-pcm.c @@ -200,7 +200,7 @@ static struct dma_chan *dmaengine_pcm_compat_request_channel( if (rtd->num_cpus > 1) { dev_err(rtd->dev, "%s doesn't support Multi CPU yet\n", __func__); - return -EINVAL; + return NULL; } dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);