Unverified Commit 1eb96c19 authored by Yu-Hsuan Hsu's avatar Yu-Hsuan Hsu Committed by Mark Brown
Browse files

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: default avatarYu-Hsuan Hsu <yuhsuan@chromium.org>
Link: https://lore.kernel.org/r/20200630091615.4020059-1-yuhsuan@chromium.org


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent ad922ca1

sound/soc/rockchip/rk3399_gru_sound.c

+13 −0
Original line number Diff line number Diff line
@@ -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,

};