On 10/11/21 2:28 PM, Joe Perches wrote:
> On Mon, 2021-10-11 at 11:26 +0530, Vijendar Mukunda wrote:
>> Add ACP6x irq handler for handling irq events for ACP IP.
>> Add pdm irq events handling.
>> Whenever audio data equal to the PDM watermark level are consumed,
>> interrupt is generated. Acknowledge the interrupt.
>
>> diff --git a/sound/soc/amd/yc/pci-acp6x.c b/sound/soc/amd/yc/pci-acp6x.c
> []
>> @@ -116,6 +118,33 @@ static int acp6x_deinit(void __iomem *acp_base)
>> return 0;
>> }
>>
>> +static irqreturn_t acp6x_irq_handler(int irq, void *dev_id)
>> +{
>> + struct acp6x_dev_data *adata;
>> + struct pdm_dev_data *yc_pdm_data;
>> + u16 irq_flag;
>
> irq_flag seems unnecessary.
>
>> + u32 val;
>> +
>> + adata = dev_id;
>> + if (!adata)
>> + return IRQ_NONE;
>> +
>> + irq_flag = 0;
>> + val = acp6x_readl(adata->acp6x_base + ACP_EXTERNAL_INTR_STAT);
>> + if (val & BIT(PDM_DMA_STAT)) {
>> + yc_pdm_data = dev_get_drvdata(&adata->pdev[0]->dev);
>> + acp6x_writel(BIT(PDM_DMA_STAT), adata->acp6x_base + ACP_EXTERNAL_INTR_STAT);
>> + if (yc_pdm_data->capture_stream)
>> + snd_pcm_period_elapsed(yc_pdm_data->capture_stream);
>> + irq_flag = 1;
>
> Could be:
>
> return IRQ_HANDLED;
will fix it and post the new version.
>
>> + }
>> +
>> + if (irq_flag)
>> + return IRQ_HANDLED;
>> + else
>> + return IRQ_NONE;
>
> and
> return IRQ_NONE;
>
>> +}
>
>
