Re: [PATCH V3 06/12] ASoC: amd: irq handler changes for ACP5x PCM dma driver

+static irqreturn_t i2s_irq_handler(int irq, void *dev_id) +{

• struct i2s_dev_data *vg_i2s_data;
• u16 irq_flag;
• u32 val;
• vg_i2s_data = dev_id;
• if (!vg_i2s_data)

• return IRQ_NONE;
  

• irq_flag = 0;
• val = acp_readl(vg_i2s_data->acp5x_base + ACP_EXTERNAL_INTR_STAT);
• if ((val & BIT(HS_TX_THRESHOLD)) && vg_i2s_data->play_stream) {

• acp_writel(BIT(HS_TX_THRESHOLD), vg_i2s_data->acp5x_base +
  

• 	   ACP_EXTERNAL_INTR_STAT);
  

• snd_pcm_period_elapsed(vg_i2s_data->play_stream);
  

• irq_flag = 1;
  

• }
• if ((val & BIT(I2S_TX_THRESHOLD)) &&

•    vg_i2s_data->i2ssp_play_stream) {
  

use single line?

• acp_writel(BIT(I2S_TX_THRESHOLD),
  

• 	   vg_i2s_data->acp5x_base + ACP_EXTERNAL_INTR_STAT);
  

• snd_pcm_period_elapsed(vg_i2s_data->i2ssp_play_stream);
  

• irq_flag = 1;
  

• }
• if ((val & BIT(HS_RX_THRESHOLD)) && vg_i2s_data->capture_stream) {

• acp_writel(BIT(HS_RX_THRESHOLD), vg_i2s_data->acp5x_base +
  

• 	   ACP_EXTERNAL_INTR_STAT);
  

• snd_pcm_period_elapsed(vg_i2s_data->capture_stream);
  

• irq_flag = 1;
  

• }
• if ((val & BIT(I2S_RX_THRESHOLD)) &&

•    vg_i2s_data->i2ssp_capture_stream) {
  

use single line?

• acp_writel(BIT(I2S_RX_THRESHOLD),
  

• 	   vg_i2s_data->acp5x_base + ACP_EXTERNAL_INTR_STAT);
  

• snd_pcm_period_elapsed(vg_i2s_data->i2ssp_capture_stream);
  

• irq_flag = 1;
  

• }
• if (irq_flag)

• return IRQ_HANDLED;
  

• else

• return IRQ_NONE;
  

+}

static int acp5x_audio_probe(struct platform_device *pdev) { struct resource *res; struct i2s_dev_data *adata;

• unsigned int irqflags; int status;

  if (!pdev->dev.platform_data) {

@@ -47,6 +94,14 @@ static int acp5x_audio_probe(struct platform_device *pdev) resource_size(res)); if (!adata->acp5x_base) return -ENOMEM;

• res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
• if (!res) {

• dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n");
  

• return -ENODEV;
  

• }
• adata->i2s_irq = res->start; dev_set_drvdata(&pdev->dev, adata); status = devm_snd_soc_register_component(&pdev->dev, &acp5x_i2s_component,

@@ -55,6 +110,12 @@ static int acp5x_audio_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Fail to register acp i2s component\n"); return -ENODEV; }

• status = devm_request_irq(&pdev->dev, adata->i2s_irq, i2s_irq_handler,

• 		  irqflags, "ACP5x_I2S_IRQ", adata);
  

• if (status) {

• dev_err(&pdev->dev, "ACP5x I2S IRQ request failed\n");
  

• return -ENODEV;
  

• }

return status?

return 0; }

diff --git a/sound/soc/amd/vangogh/acp5x.h b/sound/soc/amd/vangogh/acp5x.h index d2853738eb17..18df2b5a4283 100644 --- a/sound/soc/amd/vangogh/acp5x.h +++ b/sound/soc/amd/vangogh/acp5x.h @@ -31,9 +31,18 @@ #define ACP5x_HS_TDM_REG_END 0x1242824 #define I2S_MODE 0x00 #define ACP5x_I2S_MODE 0x00 +#define I2S_RX_THRESHOLD 27 +#define I2S_TX_THRESHOLD 28 +#define HS_TX_THRESHOLD 24 +#define HS_RX_THRESHOLD 23

struct i2s_dev_data {

• unsigned int i2s_irq; void __iomem *acp5x_base;
• struct snd_pcm_substream *play_stream;
• struct snd_pcm_substream *capture_stream;
• struct snd_pcm_substream *i2ssp_play_stream;
• struct snd_pcm_substream *i2ssp_capture_stream;

};

/* common header file uses exact offset rather than relative