diff options
| author | Mark Brown <broonie@kernel.org> | 2019-11-06 16:29:34 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-11-06 16:29:34 +0000 |
| commit | 992fd39a349ac62044d9e20d17d309c2cf0f5c27 (patch) | |
| tree | 57bfb35f9faf3c13e8cec23ef00ac23206b7da52 /sound/soc/stm | |
| parent | 18dd66ea84464a4bc86089276d5f75cadeb94a09 (diff) | |
| parent | 9508ef5a980f5d847cad9b932b6ada8f2a3466c1 (diff) | |
Merge branch 'for-5.4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-5.5
Diffstat (limited to 'sound/soc/stm')
| -rw-r--r-- | sound/soc/stm/stm32_sai_sub.c | 33 |
1 files changed, 22 insertions, 11 deletions
diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c index d7501f88aaa6..48e629ac2d88 100644 --- a/sound/soc/stm/stm32_sai_sub.c +++ b/sound/soc/stm/stm32_sai_sub.c @@ -505,10 +505,20 @@ static int stm32_sai_set_sysclk(struct snd_soc_dai *cpu_dai, if (dir == SND_SOC_CLOCK_OUT && sai->sai_mclk) { ret = regmap_update_bits(sai->regmap, STM_SAI_CR1_REGX, SAI_XCR1_NODIV, - (unsigned int)~SAI_XCR1_NODIV); + freq ? 0 : SAI_XCR1_NODIV); if (ret < 0) return ret; + /* Assume shutdown if requested frequency is 0Hz */ + if (!freq) { + /* Release mclk rate only if rate was actually set */ + if (sai->mclk_rate) { + clk_rate_exclusive_put(sai->sai_mclk); + sai->mclk_rate = 0; + } + return 0; + } + /* If master clock is used, set parent clock now */ ret = stm32_sai_set_parent_clock(sai, freq); if (ret) @@ -1093,15 +1103,6 @@ static void stm32_sai_shutdown(struct snd_pcm_substream *substream, regmap_update_bits(sai->regmap, STM_SAI_IMR_REGX, SAI_XIMR_MASK, 0); - regmap_update_bits(sai->regmap, STM_SAI_CR1_REGX, SAI_XCR1_NODIV, - SAI_XCR1_NODIV); - - /* Release mclk rate only if rate was actually set */ - if (sai->mclk_rate) { - clk_rate_exclusive_put(sai->sai_mclk); - sai->mclk_rate = 0; - } - clk_disable_unprepare(sai->sai_ck); spin_lock_irqsave(&sai->irq_lock, flags); @@ -1217,6 +1218,16 @@ static int stm32_sai_pcm_process_spdif(struct snd_pcm_substream *substream, return 0; } +/* No support of mmap in S/PDIF mode */ +static const struct snd_pcm_hardware stm32_sai_pcm_hw_spdif = { + .info = SNDRV_PCM_INFO_INTERLEAVED, + .buffer_bytes_max = 8 * PAGE_SIZE, + .period_bytes_min = 1024, + .period_bytes_max = PAGE_SIZE, + .periods_min = 2, + .periods_max = 8, +}; + static const struct snd_pcm_hardware stm32_sai_pcm_hw = { .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP, .buffer_bytes_max = 8 * PAGE_SIZE, @@ -1269,7 +1280,7 @@ static const struct snd_dmaengine_pcm_config stm32_sai_pcm_config = { }; static const struct snd_dmaengine_pcm_config stm32_sai_pcm_config_spdif = { - .pcm_hardware = &stm32_sai_pcm_hw, + .pcm_hardware = &stm32_sai_pcm_hw_spdif, .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config, .process = stm32_sai_pcm_process_spdif, }; |