ASoC: mediatek: mt8183-da7219: set playback and capture constraints

Commit Message

Tzung-Bi Shih June 23, 2020, 5:51 a.m. UTC

Sets playback and capture constraints to S16_LE, stereo, 48kHz.

Signed-off-by: Tzung-Bi Shih <[e-mail]>
---
 .../mediatek/mt8183/mt8183-da7219-max98357.c  | 42 +++++++++++++++++++
 1 file changed, 42 insertions(+)

Comments

Mark Brown June 23, 2020, 12:39 p.m. UTC | #1

On Tue, 23 Jun 2020 13:51:30 +0800, Tzung-Bi Shih wrote:
> Sets playback and capture constraints to S16_LE, stereo, 48kHz.

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: mediatek: mt8183-da7219: set playback and capture constraints
      commit: b1647f9f4f27824a689f774014bc33728b4fe7ec

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

Patch

diff --git a/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c b/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c
index ffd7c931e7bb..b61bb2de4ec3 100644
--- a/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c
+++ b/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c
@@ -119,6 +119,46 @@  static int mt8183_i2s_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 	return 0;
 }
 
+static int
+mt8183_da7219_max98357_startup(
+	struct snd_pcm_substream *substream)
+{
+	static const unsigned int rates[] = {
+		48000,
+	};
+	static const struct snd_pcm_hw_constraint_list constraints_rates = {
+		.count = ARRAY_SIZE(rates),
+		.list  = rates,
+		.mask = 0,
+	};
+	static const unsigned int channels[] = {
+		2,
+	};
+	static const struct snd_pcm_hw_constraint_list constraints_channels = {
+		.count = ARRAY_SIZE(channels),
+		.list = channels,
+		.mask = 0,
+	};
+
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	snd_pcm_hw_constraint_list(runtime, 0,
+			SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
+	runtime->hw.channels_max = 2;
+	snd_pcm_hw_constraint_list(runtime, 0,
+			SNDRV_PCM_HW_PARAM_CHANNELS,
+			&constraints_channels);
+
+	runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
+	snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
+
+	return 0;
+}
+
+static const struct snd_soc_ops mt8183_da7219_max98357_ops = {
+	.startup = mt8183_da7219_max98357_startup,
+};
+
 static int
 mt8183_da7219_max98357_bt_sco_startup(
 	struct snd_pcm_substream *substream)
@@ -256,6 +296,7 @@  static struct snd_soc_dai_link mt8183_da7219_max98357_dai_links[] = {
 			    SND_SOC_DPCM_TRIGGER_PRE},
 		.dynamic = 1,
 		.dpcm_playback = 1,
+		.ops = &mt8183_da7219_max98357_ops,
 		SND_SOC_DAILINK_REG(playback1),
 	},
 	{
@@ -303,6 +344,7 @@  static struct snd_soc_dai_link mt8183_da7219_max98357_dai_links[] = {
 			    SND_SOC_DPCM_TRIGGER_PRE},
 		.dynamic = 1,
 		.dpcm_capture = 1,
+		.ops = &mt8183_da7219_max98357_ops,
 		SND_SOC_DAILINK_REG(capture3),
 	},
 	{