Add support pm ops support for soundwire dma driver.
Signed-off-by: Vijendar Mukunda <[email protected]>
---
sound/soc/amd/ps/ps-sdw-dma.c | 86 +++++++++++++++++++++++++++++++++++
1 file changed, 86 insertions(+)
diff --git a/sound/soc/amd/ps/ps-sdw-dma.c b/sound/soc/amd/ps/ps-sdw-dma.c
index 5002ef16d980..8901a52f7498 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"
@@ -102,6 +103,29 @@ 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;
+ u32 irq_mask = ACP_SDW_DMA_IRQ_MASK;
+ u32 irq_mask1 = ACP_P1_SDW_DMA_IRQ_MASK;
+
+ if (enable) {
+ ext_intr_cntl = readl(acp_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_intr_cntl |= irq_mask;
+ writel(ext_intr_cntl, acp_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_intr_cntl1 = readl(acp_base + ACP_EXTERNAL_INTR_CNTL1);
+ ext_intr_cntl1 |= irq_mask1;
+ writel(ext_intr_cntl1, acp_base + ACP_EXTERNAL_INTR_CNTL1);
+ } else {
+ ext_intr_cntl = readl(acp_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_intr_cntl &= ~irq_mask;
+ writel(ext_intr_cntl, acp_base + ACP_EXTERNAL_INTR_CNTL);
+ ext_intr_cntl1 = readl(acp_base + ACP_EXTERNAL_INTR_CNTL1);
+ ext_intr_cntl1 &= ~irq_mask1;
+ writel(ext_intr_cntl1, acp_base + ACP_EXTERNAL_INTR_CNTL1);
+ }
+}
+
static void acp63_config_dma(struct sdw_dma_stream_instance *sdw_ins, void __iomem *acp_base,
u32 stream_id)
{
@@ -470,13 +494,75 @@ static int acp63_sdw_platform_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "Fail to register sdw dma component\n");
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_resume(struct device *dev)
+{
+ struct sdw_dma_dev_data *sdw_data;
+ struct sdw_dma_stream_instance *sdw_ins;
+ struct snd_pcm_runtime *runtime;
+ u32 period_bytes, buf_size, water_mark_size_reg;
+ int ret;
+ int index;
+
+ sdw_data = dev_get_drvdata(dev);
+ for (index = 0; index < ACP63_SDW0_DMA_MAX_STREAMS; index++) {
+ if (sdw_data->sdw0_dma_stream[index] &&
+ sdw_data->sdw0_dma_stream[index]->runtime) {
+ water_mark_size_reg = sdw0_dma_ring_buf_reg[index].water_mark_size_reg;
+ runtime = sdw_data->sdw0_dma_stream[index]->runtime;
+ sdw_ins = runtime->private_data;
+ period_bytes = frames_to_bytes(runtime, runtime->period_size);
+ buf_size = frames_to_bytes(runtime, runtime->buffer_size);
+ acp63_config_dma(sdw_ins, sdw_data->acp_base, index);
+ ret = acp63_configure_sdw_ringbuffer(sdw_data->acp_base, index,
+ buf_size, ACP_SDW0);
+ if (ret)
+ return ret;
+ writel(period_bytes, sdw_data->acp_base + water_mark_size_reg);
+ }
+ }
+ for (index = 0; index < ACP63_SDW1_DMA_MAX_STREAMS; index++) {
+ if (sdw_data->sdw1_dma_stream[index] &&
+ sdw_data->sdw1_dma_stream[index]->runtime) {
+ water_mark_size_reg = sdw1_dma_ring_buf_reg[index].water_mark_size_reg;
+ runtime = sdw_data->sdw1_dma_stream[index]->runtime;
+ sdw_ins = runtime->private_data;
+ period_bytes = frames_to_bytes(runtime, runtime->period_size);
+ buf_size = frames_to_bytes(runtime, runtime->buffer_size);
+ acp63_config_dma(sdw_ins, sdw_data->acp_base, index);
+ ret = acp63_configure_sdw_ringbuffer(sdw_data->acp_base, index,
+ buf_size, ACP_SDW1);
+ if (ret)
+ return ret;
+ writel(period_bytes, sdw_data->acp_base + water_mark_size_reg);
+ }
+ }
+ acp63_enable_disable_sdw_dma_interrupts(sdw_data->acp_base, true);
return 0;
}
+static const struct dev_pm_ops acp63_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(NULL, acp63_sdw_pcm_resume)
+};
+
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