linux-kernel - Re: [PATCH v2 3/8] ASoC: qdsp6: q6afe-dai: add support to pcm port dais

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Date:   Mon, 10 Feb 2020 17:13:32 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     Adam Serbinski <adam@...binski.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Andy Gross <agross@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Patrick Lai <plai@...eaurora.org>,
        Banajit Goswami <bgoswami@...eaurora.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/8] ASoC: qdsp6: q6afe-dai: add support to pcm port
 dais

Few minor comments

On 09/02/2020 15:47, Adam Serbinski wrote:
> This patch adds support of AFE DAI for PCM port.
> 
> Signed-off-by: Adam Serbinski <adam@...binski.com>
> CC: Andy Gross <agross@...nel.org>
> CC: Mark Rutland <mark.rutland@....com>
> CC: Liam Girdwood <lgirdwood@...il.com>
> CC: Patrick Lai <plai@...eaurora.org>
> CC: Banajit Goswami <bgoswami@...eaurora.org>
> CC: Jaroslav Kysela <perex@...ex.cz>
> CC: Takashi Iwai <tiwai@...e.com>
> CC: alsa-devel@...a-project.org
> CC: linux-arm-msm@...r.kernel.org
> CC: devicetree@...r.kernel.org
> CC: linux-kernel@...r.kernel.org
> ---
>   sound/soc/qcom/qdsp6/q6afe-dai.c | 198 ++++++++++++++++++++++++++++++-
>   1 file changed, 197 insertions(+), 1 deletion(-)
> 
> diff --git a/sound/soc/qcom/qdsp6/q6afe-dai.c b/sound/soc/qcom/qdsp6/q6afe-dai.c
> index c1a7624eaf17..23b29591ef47 100644
> --- a/sound/soc/qcom/qdsp6/q6afe-dai.c
> +++ b/sound/soc/qcom/qdsp6/q6afe-dai.c

...

> +static int q6afe_tdm_set_sysclk(struct snd_soc_dai *dai,
> +		int clk_id, unsigned int freq, int dir)
> +{

Why are we adding exactly duplicate function of q6afe_mi2s_set_sysclk here?

> +	struct q6afe_dai_data *dai_data = dev_get_drvdata(dai->dev);
> +	struct q6afe_port *port = dai_data->port[dai->id];
> +
> +	switch (clk_id) {
> +	case LPAIF_DIG_CLK:
> +		return q6afe_port_set_sysclk(port, clk_id, 0, 5, freq, dir);
> +	case LPAIF_BIT_CLK:
> +	case LPAIF_OSR_CLK:
> +		return q6afe_port_set_sysclk(port, clk_id,
> +					     Q6AFE_LPASS_CLK_SRC_INTERNAL,
> +					     Q6AFE_LPASS_CLK_ROOT_DEFAULT,
> +					     freq, dir);
>   	case Q6AFE_LPASS_CLK_ID_PRI_TDM_IBIT ... Q6AFE_LPASS_CLK_ID_QUIN_TDM_EBIT:
>   		return q6afe_port_set_sysclk(port, clk_id,
>   					     Q6AFE_LPASS_CLK_ATTRIBUTE_INVERT_COUPLE_NO,
> @@ -468,6 +520,11 @@ static const struct snd_soc_dapm_route q6afe_dapm_routes[] = {
>   	{"Tertiary MI2S Playback", NULL, "TERT_MI2S_RX"},
>   	{"Quaternary MI2S Playback", NULL, "QUAT_MI2S_RX"},
>   
> +	{"Primary PCM Playback", NULL, "PRI_PCM_RX"},
> +	{"Secondary PCM Playback", NULL, "SEC_PCM_RX"},
> +	{"Tertiary PCM Playback", NULL, "TERT_PCM_RX"},
> +	{"Quaternary PCM Playback", NULL, "QUAT_PCM_RX"},
> +
>   	{"Primary TDM0 Playback", NULL, "PRIMARY_TDM_RX_0"},
>   	{"Primary TDM1 Playback", NULL, "PRIMARY_TDM_RX_1"},
>   	{"Primary TDM2 Playback", NULL, "PRIMARY_TDM_RX_2"},
> @@ -562,6 +619,11 @@ static const struct snd_soc_dapm_route q6afe_dapm_routes[] = {
>   	{"PRI_MI2S_TX", NULL, "Primary MI2S Capture"},
>   	{"SEC_MI2S_TX", NULL, "Secondary MI2S Capture"},
>   	{"QUAT_MI2S_TX", NULL, "Quaternary MI2S Capture"},
> +
> +	{"PRI_PCM_TX", NULL, "Primary PCM Capture"},
> +	{"SEC_PCM_TX", NULL, "Secondary PCM Capture"},
> +	{"TERT_PCM_TX", NULL, "Tertiary PCM Capture"},
> +	{"QUAT_PCM_TX", NULL, "Quaternary PCM Capture"},
>   };
>   

...

>   
> +	SND_SOC_DAPM_AIF_IN("QUAT_PCM_RX", NULL,
> +			    0, 0, 0, 0),

This can be in single line, same for below


> +	SND_SOC_DAPM_AIF_OUT("QUAT_PCM_TX", NULL,
> +			     0, 0, 0, 0),
> +	SND_SOC_DAPM_AIF_IN("TERT_PCM_RX", NULL,
> +			    0, 0, 0, 0),
> +	SND_SOC_DAPM_AIF_OUT("TERT_PCM_TX", NULL,
> +			     0, 0, 0, 0),
> +	SND_SOC_DAPM_AIF_IN("SEC_PCM_RX", NULL,
> +			    0, 0, 0, 0),
> +	SND_SOC_DAPM_AIF_OUT("SEC_PCM_TX", NULL,
> +			     0, 0, 0, 0),
> +	SND_SOC_DAPM_AIF_IN("PRI_PCM_RX", NULL,
> +			    0, 0, 0, 0),
> +	SND_SOC_DAPM_AIF_OUT("PRI_PCM_TX", NULL,
> +			     0, 0, 0, 0),
> +