linux-kernel - Re: [RFC PATCH v2 6/6] ASoC: q6asm-dai: add support to set_codec

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Date:   Wed, 22 Jul 2020 17:04:30 +0300
From:   Daniel Baluta <daniel.baluta@...il.com>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc:     Mark Brown <broonie@...nel.org>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        ckeepax@...nsource.cirrus.com, Takashi Iwai <tiwai@...e.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Vinod Koul <vkoul@...nel.org>
Subject: Re: [RFC PATCH v2 6/6] ASoC: q6asm-dai: add support to set_codec_params

On Tue, Jul 21, 2020 at 8:03 PM Srinivas Kandagatla
<srinivas.kandagatla@...aro.org> wrote:
>
> Make use of new set_codec_params callback to allow decoder switching
> during gapless playback.
>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> ---
>  sound/soc/qcom/qdsp6/q6asm-dai.c | 33 ++++++++++++++++++++++++++++++++
>  1 file changed, 33 insertions(+)
>
> diff --git a/sound/soc/qcom/qdsp6/q6asm-dai.c b/sound/soc/qcom/qdsp6/q6asm-dai.c
> index b5c719682919..a8cfb1996614 100644
> --- a/sound/soc/qcom/qdsp6/q6asm-dai.c
> +++ b/sound/soc/qcom/qdsp6/q6asm-dai.c
> @@ -876,6 +876,37 @@ static int __q6asm_dai_compr_set_codec_params(struct snd_soc_component *componen
>         return 0;
>  }
>
> +static int q6asm_dai_compr_set_codec_params(struct snd_soc_component *component,
> +                                           struct snd_compr_stream *stream,
> +                                           struct snd_codec *codec)
> +{
> +       struct snd_compr_runtime *runtime = stream->runtime;
> +       struct q6asm_dai_rtd *prtd = runtime->private_data;
> +       int ret;
> +
> +       ret = q6asm_open_write(prtd->audio_client, prtd->next_track_stream_id,
> +                              codec->id, codec->profile, prtd->bits_per_sample,
> +                              true);
> +       if (ret < 0) {
> +               pr_err("q6asm_open_write failed\n");

Since you have component->dev here I think it is worth it to use
dev_err instead of pr_err.

Same for the rest of the code.