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| author | Yu-Hsuan Hsu <yuhsuan@chromium.org> | 2020-06-30 17:16:15 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-07-01 14:20:01 +0100 |
| commit | 1eb96c198aff13162de4857e19f9488d59c4acb1 (patch) | |
| tree | a4bf972b649f11cd0bf5623333ae90b64cfdf3fe /sound | |
| parent | ad922ca199b38974dbe392e2faeba3aadf461ac2 (diff) | |
| download | lwn-1eb96c198aff13162de4857e19f9488d59c4acb1.tar.gz lwn-1eb96c198aff13162de4857e19f9488d59c4acb1.zip | |
ASoC: rockchip: add format and rate constraints on rk3399
S8 and S24 formats does not work on this machine driver so force to use
S16_LE instead.
In addition, add constraint to limit the max value of rate because the
rate higher than 96000(172000, 192000) is not stable either.
Signed-off-by: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Link: https://lore.kernel.org/r/20200630091615.4020059-1-yuhsuan@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/rockchip/rk3399_gru_sound.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sound/soc/rockchip/rk3399_gru_sound.c b/sound/soc/rockchip/rk3399_gru_sound.c index f45e5aaa4b30..9539b0d024fe 100644 --- a/sound/soc/rockchip/rk3399_gru_sound.c +++ b/sound/soc/rockchip/rk3399_gru_sound.c @@ -219,19 +219,32 @@ static int rockchip_sound_dmic_hw_params(struct snd_pcm_substream *substream, return 0; } +static int rockchip_sound_startup(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + + runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE; + return snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE, + 8000, 96000); +} + static const struct snd_soc_ops rockchip_sound_max98357a_ops = { + .startup = rockchip_sound_startup, .hw_params = rockchip_sound_max98357a_hw_params, }; static const struct snd_soc_ops rockchip_sound_rt5514_ops = { + .startup = rockchip_sound_startup, .hw_params = rockchip_sound_rt5514_hw_params, }; static const struct snd_soc_ops rockchip_sound_da7219_ops = { + .startup = rockchip_sound_startup, .hw_params = rockchip_sound_da7219_hw_params, }; static const struct snd_soc_ops rockchip_sound_dmic_ops = { + .startup = rockchip_sound_startup, .hw_params = rockchip_sound_dmic_hw_params, }; |