[alsa-devel] [PATCH v4] ASoC: max98090: remove 24-bit format support if RJ is 0
The supported formats are S16_LE and S24_LE now. However, by datasheet of max98090, S24_LE is only supported when it is in the right justified mode. We should remove 24-bit format if it is not in that mode to avoid triggering error.
Signed-off-by: Yu-Hsuan Hsu yuhsuan@chromium.org --- Remove Change-Id.
sound/soc/codecs/max98090.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c index 7619ea31ab50..ada8c25e643d 100644 --- a/sound/soc/codecs/max98090.c +++ b/sound/soc/codecs/max98090.c @@ -1909,6 +1909,21 @@ static int max98090_configure_dmic(struct max98090_priv *max98090, return 0; }
+static int max98090_dai_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct max98090_priv *max98090 = snd_soc_component_get_drvdata(component); + unsigned int fmt = max98090->dai_fmt; + + /* Remove 24-bit format support if it is not in right justified mode. */ + if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_RIGHT_J) { + substream->runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE; + snd_pcm_hw_constraint_msbits(substream->runtime, 0, 16, 16); + } + return 0; +} + static int max98090_dai_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) @@ -2316,6 +2331,7 @@ EXPORT_SYMBOL_GPL(max98090_mic_detect); #define MAX98090_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
static const struct snd_soc_dai_ops max98090_dai_ops = { + .startup = max98090_dai_startup, .set_sysclk = max98090_dai_set_sysclk, .set_fmt = max98090_dai_set_fmt, .set_tdm_slot = max98090_set_tdm_slot,
On 6/4/19 5:49 AM, Yu-Hsuan Hsu wrote:
The supported formats are S16_LE and S24_LE now. However, by datasheet of max98090, S24_LE is only supported when it is in the right justified mode. We should remove 24-bit format if it is not in that mode to avoid triggering error.
Signed-off-by: Yu-Hsuan Hsu yuhsuan@chromium.org
Remove Change-Id.
sound/soc/codecs/max98090.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c index 7619ea31ab50..ada8c25e643d 100644 --- a/sound/soc/codecs/max98090.c +++ b/sound/soc/codecs/max98090.c @@ -1909,6 +1909,21 @@ static int max98090_configure_dmic(struct max98090_priv *max98090, return 0; }
+static int max98090_dai_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)+{
- struct snd_soc_component *component = dai->component;
- struct max98090_priv *max98090 = snd_soc_component_get_drvdata(component);
- unsigned int fmt = max98090->dai_fmt;
- /* Remove 24-bit format support if it is not in right justified mode. */
- if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_RIGHT_J) {
substream->runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;snd_pcm_hw_constraint_msbits(substream->runtime, 0, 16, 16);- }
- return 0;
+}
The data sheet is ambiguous, it states that 24-bit data is supported in RJ mode when TDM is 0. It doesn't say TDM can only support 16 bits.
That said, it's not clear to me if TDM is supported or not in this driver, there are multiple references to tdm_slots but DSP_A and DSP_B are not supported.
- static int max98090_dai_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
@@ -2316,6 +2331,7 @@ EXPORT_SYMBOL_GPL(max98090_mic_detect); #define MAX98090_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
static const struct snd_soc_dai_ops max98090_dai_ops = {
- .startup = max98090_dai_startup, .set_sysclk = max98090_dai_set_sysclk, .set_fmt = max98090_dai_set_fmt, .set_tdm_slot = max98090_set_tdm_slot,
Thanks! How about adding a new condition to check whether tdm_slots is 0? If true, we can remove 24 bit format. Is it acceptable?
On Tue, Jun 4, 2019 at 10:48 PM Pierre-Louis Bossart < pierre-louis.bossart@linux.intel.com> wrote:
On 6/4/19 5:49 AM, Yu-Hsuan Hsu wrote:
The supported formats are S16_LE and S24_LE now. However, by datasheet of max98090, S24_LE is only supported when it is in the right justified mode. We should remove 24-bit format if it is not in that mode to avoid triggering error.
Signed-off-by: Yu-Hsuan Hsu yuhsuan@chromium.org
Remove Change-Id.
sound/soc/codecs/max98090.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c index 7619ea31ab50..ada8c25e643d 100644 --- a/sound/soc/codecs/max98090.c +++ b/sound/soc/codecs/max98090.c @@ -1909,6 +1909,21 @@ static int max98090_configure_dmic(struct
max98090_priv *max98090,
return 0;}
+static int max98090_dai_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)+{
struct snd_soc_component *component = dai->component;struct max98090_priv *max98090 =snd_soc_component_get_drvdata(component);
unsigned int fmt = max98090->dai_fmt;/* Remove 24-bit format support if it is not in right justifiedmode. */
if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_RIGHT_J) {substream->runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;snd_pcm_hw_constraint_msbits(substream->runtime, 0, 16,16);
}return 0;+}
The data sheet is ambiguous, it states that 24-bit data is supported in RJ mode when TDM is 0. It doesn't say TDM can only support 16 bits.
That said, it's not clear to me if TDM is supported or not in this driver, there are multiple references to tdm_slots but DSP_A and DSP_B are not supported.
- static int max98090_dai_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
@@ -2316,6 +2331,7 @@ EXPORT_SYMBOL_GPL(max98090_mic_detect); #define MAX98090_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE)
static const struct snd_soc_dai_ops max98090_dai_ops = {
.startup = max98090_dai_startup, .set_sysclk = max98090_dai_set_sysclk, .set_fmt = max98090_dai_set_fmt, .set_tdm_slot = max98090_set_tdm_slot,
The patch
ASoC: max98090: remove 24-bit format support if RJ is 0
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.2
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From 5628c8979642a076f91ee86c3bae5ad251639af0 Mon Sep 17 00:00:00 2001
From: Yu-Hsuan Hsu yuhsuan@chromium.org Date: Tue, 4 Jun 2019 18:49:09 +0800 Subject: [PATCH] ASoC: max98090: remove 24-bit format support if RJ is 0
The supported formats are S16_LE and S24_LE now. However, by datasheet of max98090, S24_LE is only supported when it is in the right justified mode. We should remove 24-bit format if it is not in that mode to avoid triggering error.
Signed-off-by: Yu-Hsuan Hsu yuhsuan@chromium.org Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/codecs/max98090.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c index 7619ea31ab50..ada8c25e643d 100644 --- a/sound/soc/codecs/max98090.c +++ b/sound/soc/codecs/max98090.c @@ -1909,6 +1909,21 @@ static int max98090_configure_dmic(struct max98090_priv *max98090, return 0; }
+static int max98090_dai_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct max98090_priv *max98090 = snd_soc_component_get_drvdata(component); + unsigned int fmt = max98090->dai_fmt; + + /* Remove 24-bit format support if it is not in right justified mode. */ + if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_RIGHT_J) { + substream->runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE; + snd_pcm_hw_constraint_msbits(substream->runtime, 0, 16, 16); + } + return 0; +} + static int max98090_dai_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) @@ -2316,6 +2331,7 @@ EXPORT_SYMBOL_GPL(max98090_mic_detect); #define MAX98090_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
static const struct snd_soc_dai_ops max98090_dai_ops = { + .startup = max98090_dai_startup, .set_sysclk = max98090_dai_set_sysclk, .set_fmt = max98090_dai_set_fmt, .set_tdm_slot = max98090_set_tdm_slot,
participants (4)
-
Mark Brown -
Pierre-Louis Bossart -
Yu-Hsuan Hsu -
Yu-hsuan Hsu