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SubjectRe: [PATCH] ASoC: AMD: Set constraints for DMIC and MAX98357a codec
On Tue, Aug 21, 2018 at 12:55 AM Akshu Agrawal <akshu.agrawal@amd.com> wrote:
>
> We support dual channel, 48Khz. This constraint was set only for
> da7219. It is being extended to DMIC and MAX98357a.
>
> Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>

Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>

> ---
> sound/soc/amd/acp-da7219-max98357a.c | 33 +++++++++++++++++++++++++++++++++
> 1 file changed, 33 insertions(+)
>
> diff --git a/sound/soc/amd/acp-da7219-max98357a.c b/sound/soc/amd/acp-da7219-max98357a.c
> index 066d5489..cf2f648 100644
> --- a/sound/soc/amd/acp-da7219-max98357a.c
> +++ b/sound/soc/amd/acp-da7219-max98357a.c
> @@ -162,10 +162,21 @@ static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
>
> static int cz_max_startup(struct snd_pcm_substream *substream)
> {
> + struct snd_pcm_runtime *runtime = substream->runtime;
> struct snd_soc_pcm_runtime *rtd = substream->private_data;
> struct snd_soc_card *card = rtd->card;
> struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
>
> + /*
> + * On this platform for PCM device we support stereo
> + */
> +
> + runtime->hw.channels_max = DUAL_CHANNEL;
> + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
> + &constraints_channels);
> + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
> + &constraints_rates);
> +
> machine->i2s_instance = I2S_BT_INSTANCE;
> return da7219_clk_enable(substream);
> }
> @@ -177,20 +188,42 @@ static void cz_max_shutdown(struct snd_pcm_substream *substream)
>
> static int cz_dmic0_startup(struct snd_pcm_substream *substream)
> {
> + struct snd_pcm_runtime *runtime = substream->runtime;
> struct snd_soc_pcm_runtime *rtd = substream->private_data;
> struct snd_soc_card *card = rtd->card;
> struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
>
> + /*
> + * On this platform for PCM device we support stereo
> + */
> +
> + runtime->hw.channels_max = DUAL_CHANNEL;
> + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
> + &constraints_channels);
> + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
> + &constraints_rates);
> +
> machine->i2s_instance = I2S_BT_INSTANCE;
> return da7219_clk_enable(substream);
> }
>
> static int cz_dmic1_startup(struct snd_pcm_substream *substream)
> {
> + struct snd_pcm_runtime *runtime = substream->runtime;
> struct snd_soc_pcm_runtime *rtd = substream->private_data;
> struct snd_soc_card *card = rtd->card;
> struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
>
> + /*
> + * On this platform for PCM device we support stereo
> + */
> +
> + runtime->hw.channels_max = DUAL_CHANNEL;
> + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
> + &constraints_channels);
> + snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
> + &constraints_rates);
> +
> machine->i2s_instance = I2S_SP_INSTANCE;
> machine->capture_channel = CAP_CHANNEL0;
> return da7219_clk_enable(substream);
> --
> 1.9.1
>

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