From 1c5b8c4e4cb532b2055200d3f512b761d485a5af Mon Sep 17 00:00:00 2001 From: Rander Wang Date: Fri, 25 Jun 2021 15:50:39 -0500 Subject: [PATCH] ASoC: Intel: boards: fix xrun issue on platform with max98373 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [ Upstream commit 33c8516841ea4fa12fdb8961711bf95095c607ee ] On TGL platform with max98373 codec the trigger start sequence is fe first, then codec component and sdw link is the last. Recently a delay was introduced in max98373 codec driver and this resulted to the start of sdw stream transmission was delayed and the data transmitted by fw can't be consumed by sdw controller, so xrun happened. Adding delay in trigger function is a bad idea. This patch enable spk pin in prepare function and disable it in hw_free to avoid xrun issue caused by delay in trigger. Fixes: 3a27875e91fb ("ASoC: max98373: Added 30ms turn on/off time delay") BugLink: https://github.com/thesofproject/sof/issues/4066 Reviewed-by: Bard Liao Reviewed-by: Péter Ujfalusi Signed-off-by: Rander Wang Signed-off-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20210625205042.65181-2-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/intel/boards/sof_sdw_max98373.c | 81 +++++++++++++++-------- 1 file changed, 53 insertions(+), 28 deletions(-) diff --git a/sound/soc/intel/boards/sof_sdw_max98373.c b/sound/soc/intel/boards/sof_sdw_max98373.c index 0e7ed906b3417..25daef910aee1 100644 --- a/sound/soc/intel/boards/sof_sdw_max98373.c +++ b/sound/soc/intel/boards/sof_sdw_max98373.c @@ -55,43 +55,68 @@ static int spk_init(struct snd_soc_pcm_runtime *rtd) return ret; } -static int max98373_sdw_trigger(struct snd_pcm_substream *substream, int cmd) +static int mx8373_enable_spk_pin(struct snd_pcm_substream *substream, bool enable) { + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_soc_dai *codec_dai; + struct snd_soc_dai *cpu_dai; int ret; + int j; - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - /* enable max98373 first */ - ret = max_98373_trigger(substream, cmd); - if (ret < 0) - break; - - ret = sdw_trigger(substream, cmd); - break; - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - ret = sdw_trigger(substream, cmd); - if (ret < 0) - break; - - ret = max_98373_trigger(substream, cmd); - break; - default: - ret = -EINVAL; - break; + /* set spk pin by playback only */ + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) + return 0; + + cpu_dai = asoc_rtd_to_cpu(rtd, 0); + for_each_rtd_codec_dais(rtd, j, codec_dai) { + struct snd_soc_dapm_context *dapm = + snd_soc_component_get_dapm(cpu_dai->component); + char pin_name[16]; + + snprintf(pin_name, ARRAY_SIZE(pin_name), "%s Spk", + codec_dai->component->name_prefix); + + if (enable) + ret = snd_soc_dapm_enable_pin(dapm, pin_name); + else + ret = snd_soc_dapm_disable_pin(dapm, pin_name); + + if (!ret) + snd_soc_dapm_sync(dapm); } - return ret; + return 0; +} + +static int mx8373_sdw_prepare(struct snd_pcm_substream *substream) +{ + int ret = 0; + + /* according to soc_pcm_prepare dai link prepare is called first */ + ret = sdw_prepare(substream); + if (ret < 0) + return ret; + + return mx8373_enable_spk_pin(substream, true); +} + +static int mx8373_sdw_hw_free(struct snd_pcm_substream *substream) +{ + int ret = 0; + + /* according to soc_pcm_hw_free dai link free is called first */ + ret = sdw_hw_free(substream); + if (ret < 0) + return ret; + + return mx8373_enable_spk_pin(substream, false); } static const struct snd_soc_ops max_98373_sdw_ops = { .startup = sdw_startup, - .prepare = sdw_prepare, - .trigger = max98373_sdw_trigger, - .hw_free = sdw_hw_free, + .prepare = mx8373_sdw_prepare, + .trigger = sdw_trigger, + .hw_free = mx8373_sdw_hw_free, .shutdown = sdw_shutdown, };