linux-kernel - Re: [PATCH 5/7] ASoC: amd: handle ACP3x i2s-sp watermark interrupt.

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Message-ID: <a4be9768-165d-0a4d-411c-45e80b431cb6@amd.com>
Date:   Fri, 25 Oct 2019 07:07:57 +0000
From:   vishnu <vravulap@....com>
To:     "RAVULAPATI, VISHNU VARDHAN RAO" 
        <Vishnuvardhanrao.Ravulapati@....com>
CC:     "Deucher, Alexander" <Alexander.Deucher@....com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        "Mukunda, Vijendar" <Vijendar.Mukunda@....com>,
        Maruthi Bayyavarapu <maruthi.bayyavarapu@....com>,
        YueHaibing <yuehaibing@...wei.com>,
        Colin Ian King <colin.king@...onical.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        "moderated list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..." 
        <alsa-devel@...a-project.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 5/7] ASoC: amd: handle ACP3x i2s-sp watermark interrupt.

Hi Mark,
Any updates on this patch.

Regards,
Vishnu

On 19/10/19 2:35 AM, Ravulapati Vishnu vardhan rao wrote:
> whenever audio data equal to I2S-SP fifo watermark level is
> produced/consumed, interrupt is generated.
> 
> Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@....com>
> ---
>   sound/soc/amd/raven/acp3x-pcm-dma.c | 14 ++++++++++++++
>   1 file changed, 14 insertions(+)
> 
> diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c
> index 4fcef3f..a000ac4 100644
> --- a/sound/soc/amd/raven/acp3x-pcm-dma.c
> +++ b/sound/soc/amd/raven/acp3x-pcm-dma.c
> @@ -176,6 +176,13 @@ static irqreturn_t i2s_irq_handler(int irq, void *dev_id)
>   		snd_pcm_period_elapsed(rv_i2s_data->play_stream);
>   		play_flag = 1;
>   	}
> +	if ((val & BIT(I2S_TX_THRESHOLD)) &&
> +				rv_i2s_data->i2ssp_play_stream) {
> +		rv_writel(BIT(I2S_TX_THRESHOLD),
> +			rv_i2s_data->acp3x_base	+ mmACP_EXTERNAL_INTR_STAT);
> +		snd_pcm_period_elapsed(rv_i2s_data->i2ssp_play_stream);
> +		play_flag = 1;
> +	}
>   
>   	if ((val & BIT(BT_RX_THRESHOLD)) && rv_i2s_data->capture_stream) {
>   		rv_writel(BIT(BT_RX_THRESHOLD), rv_i2s_data->acp3x_base +
> @@ -183,6 +190,13 @@ static irqreturn_t i2s_irq_handler(int irq, void *dev_id)
>   		snd_pcm_period_elapsed(rv_i2s_data->capture_stream);
>   		cap_flag = 1;
>   	}
> +	if ((val & BIT(I2S_RX_THRESHOLD)) &&
> +				rv_i2s_data->i2ssp_capture_stream) {
> +		rv_writel(BIT(I2S_RX_THRESHOLD),
> +			 rv_i2s_data->acp3x_base + mmACP_EXTERNAL_INTR_STAT);
> +		snd_pcm_period_elapsed(rv_i2s_data->i2ssp_capture_stream);
> +		cap_flag = 1;
> +	}
>   
>   	if (play_flag | cap_flag)
>   		return IRQ_HANDLED;
>