Add support for runtime pm ops for soundwire dma driver.
Signed-off-by: Vijendar Mukunda <[email protected]>
---
sound/soc/amd/ps/ps-sdw-dma.c | 66 +++++++++++++++++++++++++++++++++++
1 file changed, 66 insertions(+)
diff --git a/sound/soc/amd/ps/ps-sdw-dma.c b/sound/soc/amd/ps/ps-sdw-dma.c
index e94f76053c66..960c0bc5e848 100644
--- a/sound/soc/amd/ps/ps-sdw-dma.c
+++ b/sound/soc/amd/ps/ps-sdw-dma.c
@@ -12,6 +12,7 @@
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dai.h>
+#include <linux/pm_runtime.h>
#include <linux/soundwire/sdw_amd.h>
#include "acp63.h"
@@ -56,6 +57,30 @@ static const struct snd_pcm_hardware acp63_sdw_hardware_capture = {
.periods_max = SDW_CAPTURE_MAX_NUM_PERIODS,
};
+static void acp63_enable_disable_sdw_dma_interrupts(void __iomem *acp_base, bool enable)
+{
+ u32 ext_intr_cntl, ext_intr_cntl1, irq_mask, irq_mask1;
+
+ irq_mask = ACP_SDW_DMA_IRQ_MASK;
+ irq_mask1 = ACP_P1_SDW_DMA_IRQ_MASK;
+
+ if (enable) {
+ ext_intr_cntl = acp63_readl(acp_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_intr_cntl |= irq_mask;
+ acp63_writel(ext_intr_cntl, acp_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_intr_cntl1 = acp63_readl(acp_base + ACP_EXTERNAL_INTR_CNTL1);
+ ext_intr_cntl1 |= irq_mask1;
+ acp63_writel(ext_intr_cntl1, acp_base + ACP_EXTERNAL_INTR_CNTL1);
+ } else {
+ ext_intr_cntl = acp63_readl(acp_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_intr_cntl &= ~irq_mask;
+ acp63_writel(ext_intr_cntl, acp_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_intr_cntl1 = acp63_readl(acp_base + ACP_EXTERNAL_INTR_CNTL1);
+ ext_intr_cntl1 &= ~irq_mask1;
+ acp63_writel(ext_intr_cntl1, acp_base + ACP_EXTERNAL_INTR_CNTL1);
+ }
+}
+
static void acp63_config_dma(struct sdw_stream_instance *sdw_ins, u32 stream_id)
{
u16 page_idx;
@@ -585,13 +610,54 @@ static int acp63_sdw_platform_probe(struct platform_device *pdev)
return -ENODEV;
}
+ pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS);
+ pm_runtime_use_autosuspend(&pdev->dev);
+ pm_runtime_enable(&pdev->dev);
+ pm_runtime_allow(&pdev->dev);
+ return 0;
+}
+
+static int acp63_sdw_platform_remove(struct platform_device *pdev)
+{
+ pm_runtime_disable(&pdev->dev);
+ return 0;
+}
+
+static int __maybe_unused acp63_sdw_pcm_runtime_suspend(struct device *dev)
+{
+ struct sdw_dma_dev_data *sdw_dma_data;
+
+ sdw_dma_data = dev_get_drvdata(dev);
+ mutex_lock(sdw_dma_data->acp_lock);
+ acp63_enable_disable_sdw_dma_interrupts(sdw_dma_data->acp_base, false);
+ mutex_unlock(sdw_dma_data->acp_lock);
+
+ return 0;
+}
+
+static int __maybe_unused acp63_sdw_pcm_runtime_resume(struct device *dev)
+{
+ struct sdw_dma_dev_data *sdw_dma_data;
+
+ sdw_dma_data = dev_get_drvdata(dev);
+ mutex_lock(sdw_dma_data->acp_lock);
+ acp63_enable_disable_sdw_dma_interrupts(sdw_dma_data->acp_base, true);
+ mutex_unlock(sdw_dma_data->acp_lock);
+
return 0;
}
+static const struct dev_pm_ops acp63_pm_ops = {
+ SET_RUNTIME_PM_OPS(acp63_sdw_pcm_runtime_suspend,
+ acp63_sdw_pcm_runtime_resume, NULL)
+};
+
static struct platform_driver acp63_sdw_dma_driver = {
.probe = acp63_sdw_platform_probe,
+ .remove = acp63_sdw_platform_remove,
.driver = {
.name = "amd_ps_sdw_dma",
+ .pm = &acp63_pm_ops,
},
};
--
2.34.1