ASoC: amd: add vangogh i2s dma driver pm ops

Add Vangogh i2s dma driver pm ops

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20210721180430.11571-12-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/amd/vangogh/acp5x-pcm-dma.c b/sound/soc/amd/vangogh/acp5x-pcm-dma.c
index 6296b353c7f108f803c9e1428bbc6a1aba2f3545..9f8eb72ac83414190da01930e99a42f5bfb88424 100644 (file)
--- a/sound/soc/amd/vangogh/acp5x-pcm-dma.c
+++ b/sound/soc/amd/vangogh/acp5x-pcm-dma.c
@@ -8,6 +8,7 @@
 #include <linux/module.h>
 #include <linux/err.h>
 #include <linux/io.h>
+#include <linux/pm_runtime.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
@@ -412,16 +413,107 @@ static int acp5x_audio_probe(struct platform_device *pdev)
        }
        status = devm_request_irq(&pdev->dev, adata->i2s_irq, i2s_irq_handler,
                                  irqflags, "ACP5x_I2S_IRQ", adata);
-       if (status)
+       if (status) {
                dev_err(&pdev->dev, "ACP5x I2S IRQ request failed\n");
+               return status;
+       }
+       pm_runtime_set_autosuspend_delay(&pdev->dev, 2000);
+       pm_runtime_use_autosuspend(&pdev->dev);
+       pm_runtime_enable(&pdev->dev);
+       pm_runtime_allow(&pdev->dev);
+
+       return 0;
+}
 
-       return status;
+static int acp5x_audio_remove(struct platform_device *pdev)
+{
+       pm_runtime_disable(&pdev->dev);
+       return 0;
 }
 
+static int __maybe_unused acp5x_pcm_resume(struct device *dev)
+{
+       struct i2s_dev_data *adata;
+       u32 val, reg_val, frmt_val;
+
+       reg_val = 0;
+       frmt_val = 0;
+       adata = dev_get_drvdata(dev);
+
+       if (adata->play_stream && adata->play_stream->runtime) {
+               struct i2s_stream_instance *rtd =
+                       adata->play_stream->runtime->private_data;
+               config_acp5x_dma(rtd, SNDRV_PCM_STREAM_PLAYBACK);
+               switch (rtd->i2s_instance) {
+               case I2S_HS_INSTANCE:
+                       reg_val = ACP_HSTDM_ITER;
+                       frmt_val = ACP_HSTDM_TXFRMT;
+                       break;
+               case I2S_SP_INSTANCE:
+               default:
+                       reg_val = ACP_I2STDM_ITER;
+                       frmt_val = ACP_I2STDM_TXFRMT;
+               }
+               acp_writel((rtd->xfer_resolution  << 3),
+                          rtd->acp5x_base + reg_val);
+       }
+
+       if (adata->capture_stream && adata->capture_stream->runtime) {
+               struct i2s_stream_instance *rtd =
+                       adata->capture_stream->runtime->private_data;
+               config_acp5x_dma(rtd, SNDRV_PCM_STREAM_CAPTURE);
+               switch (rtd->i2s_instance) {
+               case I2S_HS_INSTANCE:
+                       reg_val = ACP_HSTDM_IRER;
+                       frmt_val = ACP_HSTDM_RXFRMT;
+                       break;
+               case I2S_SP_INSTANCE:
+               default:
+                       reg_val = ACP_I2STDM_IRER;
+                       frmt_val = ACP_I2STDM_RXFRMT;
+               }
+               acp_writel((rtd->xfer_resolution  << 3),
+                          rtd->acp5x_base + reg_val);
+       }
+       if (adata->tdm_mode == TDM_ENABLE) {
+               acp_writel(adata->tdm_fmt, adata->acp5x_base + frmt_val);
+               val = acp_readl(adata->acp5x_base + reg_val);
+               acp_writel(val | 0x2, adata->acp5x_base + reg_val);
+       }
+       acp_writel(1, adata->acp5x_base + ACP_EXTERNAL_INTR_ENB);
+       return 0;
+}
+
+static int __maybe_unused acp5x_pcm_suspend(struct device *dev)
+{
+       struct i2s_dev_data *adata;
+
+       adata = dev_get_drvdata(dev);
+       acp_writel(0, adata->acp5x_base + ACP_EXTERNAL_INTR_ENB);
+       return 0;
+}
+
+static int __maybe_unused acp5x_pcm_runtime_resume(struct device *dev)
+{
+       struct i2s_dev_data *adata;
+
+       adata = dev_get_drvdata(dev);
+       acp_writel(1, adata->acp5x_base + ACP_EXTERNAL_INTR_ENB);
+       return 0;
+}
+
+static const struct dev_pm_ops acp5x_pm_ops = {
+       SET_RUNTIME_PM_OPS(acp5x_pcm_suspend,
+                          acp5x_pcm_runtime_resume, NULL)
+       SET_SYSTEM_SLEEP_PM_OPS(acp5x_pcm_suspend, acp5x_pcm_resume)
+};
+
 static struct platform_driver acp5x_dma_driver = {
        .probe = acp5x_audio_probe,
+       .remove = acp5x_audio_remove,
        .driver = {
                .name = "acp5x_i2s_dma",
+               .pm = &acp5x_pm_ops,
        },
 };