diff options
| -rw-r--r-- | sound/soc/meson/axg-card.c | 1 | ||||
| -rw-r--r-- | sound/soc/meson/axg-fifo.c | 29 | ||||
| -rw-r--r-- | sound/soc/meson/axg-tdm-formatter.c | 40 | ||||
| -rw-r--r-- | sound/soc/meson/axg-tdm-interface.c | 38 | ||||
| -rw-r--r-- | sound/soc/meson/axg-tdm.h | 5 |
5 files changed, 93 insertions, 20 deletions
diff --git a/sound/soc/meson/axg-card.c b/sound/soc/meson/axg-card.c index 3180aa4d3a15..8c5605c1e34e 100644 --- a/sound/soc/meson/axg-card.c +++ b/sound/soc/meson/axg-card.c @@ -318,6 +318,7 @@ static int axg_card_add_link(struct snd_soc_card *card, struct device_node *np, dai_link->cpus = cpu; dai_link->num_cpus = 1; + dai_link->nonatomic = true; ret = meson_card_parse_dai(card, np, dai_link->cpus); if (ret) diff --git a/sound/soc/meson/axg-fifo.c b/sound/soc/meson/axg-fifo.c index bebee0ca8e38..ecb3eb7a9723 100644 --- a/sound/soc/meson/axg-fifo.c +++ b/sound/soc/meson/axg-fifo.c @@ -204,18 +204,26 @@ static irqreturn_t axg_fifo_pcm_irq_block(int irq, void *dev_id) unsigned int status; regmap_read(fifo->map, FIFO_STATUS1, &status); - status = FIELD_GET(STATUS1_INT_STS, status); + axg_fifo_ack_irq(fifo, status); + + /* Use the thread to call period elapsed on nonatomic links */ if (status & FIFO_INT_COUNT_REPEAT) - snd_pcm_period_elapsed(ss); - else - dev_dbg(axg_fifo_dev(ss), "unexpected irq - STS 0x%02x\n", - status); + return IRQ_WAKE_THREAD; - /* Ack irqs */ - axg_fifo_ack_irq(fifo, status); + dev_dbg(axg_fifo_dev(ss), "unexpected irq - STS 0x%02x\n", + status); + + return IRQ_NONE; +} + +static irqreturn_t axg_fifo_pcm_irq_block_thread(int irq, void *dev_id) +{ + struct snd_pcm_substream *ss = dev_id; + + snd_pcm_period_elapsed(ss); - return IRQ_RETVAL(status); + return IRQ_HANDLED; } int axg_fifo_pcm_open(struct snd_soc_component *component, @@ -243,8 +251,9 @@ int axg_fifo_pcm_open(struct snd_soc_component *component, if (ret) return ret; - ret = request_irq(fifo->irq, axg_fifo_pcm_irq_block, 0, - dev_name(dev), ss); + ret = request_threaded_irq(fifo->irq, axg_fifo_pcm_irq_block, + axg_fifo_pcm_irq_block_thread, + IRQF_ONESHOT, dev_name(dev), ss); if (ret) return ret; diff --git a/sound/soc/meson/axg-tdm-formatter.c b/sound/soc/meson/axg-tdm-formatter.c index 63333a2b0a9c..a6579efd3775 100644 --- a/sound/soc/meson/axg-tdm-formatter.c +++ b/sound/soc/meson/axg-tdm-formatter.c @@ -392,6 +392,46 @@ void axg_tdm_stream_free(struct axg_tdm_stream *ts) } EXPORT_SYMBOL_GPL(axg_tdm_stream_free); +int axg_tdm_stream_set_cont_clocks(struct axg_tdm_stream *ts, + unsigned int fmt) +{ + int ret = 0; + + if (fmt & SND_SOC_DAIFMT_CONT) { + /* Clock are already enabled - skipping */ + if (ts->clk_enabled) + return 0; + + ret = clk_prepare_enable(ts->iface->mclk); + if (ret) + return ret; + + ret = clk_prepare_enable(ts->iface->sclk); + if (ret) + goto err_sclk; + + ret = clk_prepare_enable(ts->iface->lrclk); + if (ret) + goto err_lrclk; + + ts->clk_enabled = true; + return 0; + } + + /* Clocks are already disabled - skipping */ + if (!ts->clk_enabled) + return 0; + + clk_disable_unprepare(ts->iface->lrclk); +err_lrclk: + clk_disable_unprepare(ts->iface->sclk); +err_sclk: + clk_disable_unprepare(ts->iface->mclk); + ts->clk_enabled = false; + return ret; +} +EXPORT_SYMBOL_GPL(axg_tdm_stream_set_cont_clocks); + MODULE_DESCRIPTION("Amlogic AXG TDM formatter driver"); MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>"); MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/meson/axg-tdm-interface.c b/sound/soc/meson/axg-tdm-interface.c index bf708717635b..62057c71f742 100644 --- a/sound/soc/meson/axg-tdm-interface.c +++ b/sound/soc/meson/axg-tdm-interface.c @@ -309,6 +309,7 @@ static int axg_tdm_iface_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct axg_tdm_iface *iface = snd_soc_dai_get_drvdata(dai); + struct axg_tdm_stream *ts = snd_soc_dai_get_dma_data(dai, substream); int ret; switch (iface->fmt & SND_SOC_DAIFMT_FORMAT_MASK) { @@ -346,7 +347,11 @@ static int axg_tdm_iface_hw_params(struct snd_pcm_substream *substream, return ret; } - return 0; + ret = axg_tdm_stream_set_cont_clocks(ts, iface->fmt); + if (ret) + dev_err(dai->dev, "failed to apply continuous clock setting\n"); + + return ret; } static int axg_tdm_iface_hw_free(struct snd_pcm_substream *substream, @@ -354,19 +359,32 @@ static int axg_tdm_iface_hw_free(struct snd_pcm_substream *substream, { struct axg_tdm_stream *ts = snd_soc_dai_get_dma_data(dai, substream); - /* Stop all attached formatters */ - axg_tdm_stream_stop(ts); - - return 0; + return axg_tdm_stream_set_cont_clocks(ts, 0); } -static int axg_tdm_iface_prepare(struct snd_pcm_substream *substream, +static int axg_tdm_iface_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) { - struct axg_tdm_stream *ts = snd_soc_dai_get_dma_data(dai, substream); + struct axg_tdm_stream *ts = + snd_soc_dai_get_dma_data(dai, substream); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + axg_tdm_stream_start(ts); + break; + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_STOP: + axg_tdm_stream_stop(ts); + break; + default: + return -EINVAL; + } - /* Force all attached formatters to update */ - return axg_tdm_stream_reset(ts); + return 0; } static int axg_tdm_iface_remove_dai(struct snd_soc_dai *dai) @@ -412,8 +430,8 @@ static const struct snd_soc_dai_ops axg_tdm_iface_ops = { .set_fmt = axg_tdm_iface_set_fmt, .startup = axg_tdm_iface_startup, .hw_params = axg_tdm_iface_hw_params, - .prepare = axg_tdm_iface_prepare, .hw_free = axg_tdm_iface_hw_free, + .trigger = axg_tdm_iface_trigger, }; /* TDM Backend DAIs */ diff --git a/sound/soc/meson/axg-tdm.h b/sound/soc/meson/axg-tdm.h index 42f7470b9a7f..daaca10fec9e 100644 --- a/sound/soc/meson/axg-tdm.h +++ b/sound/soc/meson/axg-tdm.h @@ -58,12 +58,17 @@ struct axg_tdm_stream { unsigned int physical_width; u32 *mask; bool ready; + + /* For continuous clock tracking */ + bool clk_enabled; }; struct axg_tdm_stream *axg_tdm_stream_alloc(struct axg_tdm_iface *iface); void axg_tdm_stream_free(struct axg_tdm_stream *ts); int axg_tdm_stream_start(struct axg_tdm_stream *ts); void axg_tdm_stream_stop(struct axg_tdm_stream *ts); +int axg_tdm_stream_set_cont_clocks(struct axg_tdm_stream *ts, + unsigned int fmt); static inline int axg_tdm_stream_reset(struct axg_tdm_stream *ts) { |