ASoC: amd: acp: add pm ops support for renoir platform.

Add pm ops for renoir platform.

Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://msgid.link/r/20231215130300.1247475-1-Syed.SabaKareem@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/amd/acp/acp-renoir.c b/sound/soc/amd/acp/acp-renoir.c
index a591482a0726508e1d99b4388b5ca34598f2bec9..b0e181c9a733a5f1a243763829d6c10fbc90f751 100644 (file)
--- a/sound/soc/amd/acp/acp-renoir.c
+++ b/sound/soc/amd/acp/acp-renoir.c
@@ -20,6 +20,7 @@
 #include <sound/soc.h>
 #include <sound/soc-dai.h>
 #include <linux/dma-mapping.h>
+#include <linux/pm_runtime.h>
 
 #include "amd.h"
 #include "acp-mach.h"
@@ -196,6 +197,11 @@ static int renoir_audio_probe(struct platform_device *pdev)
        acp_enable_interrupts(adata);
        acp_platform_register(dev);
 
+       pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS);
+       pm_runtime_use_autosuspend(&pdev->dev);
+       pm_runtime_mark_last_busy(&pdev->dev);
+       pm_runtime_set_active(&pdev->dev);
+       pm_runtime_enable(&pdev->dev);
        return 0;
 }
 
@@ -208,11 +214,42 @@ static void renoir_audio_remove(struct platform_device *pdev)
        acp_platform_unregister(dev);
 }
 
+static int __maybe_unused rn_pcm_resume(struct device *dev)
+{
+       struct acp_dev_data *adata = dev_get_drvdata(dev);
+       struct acp_stream *stream;
+       struct snd_pcm_substream *substream;
+       snd_pcm_uframes_t buf_in_frames;
+       u64 buf_size;
+
+       spin_lock(&adata->acp_lock);
+       list_for_each_entry(stream, &adata->stream_list, list) {
+               substream = stream->substream;
+               if (substream && substream->runtime) {
+                       buf_in_frames = (substream->runtime->buffer_size);
+                       buf_size = frames_to_bytes(substream->runtime, buf_in_frames);
+                       config_pte_for_stream(adata, stream);
+                       config_acp_dma(adata, stream, buf_size);
+                       if (stream->dai_id)
+                               restore_acp_i2s_params(substream, adata, stream);
+                       else
+                               restore_acp_pdm_params(substream, adata);
+               }
+       }
+       spin_unlock(&adata->acp_lock);
+       return 0;
+}
+
+static const struct dev_pm_ops rn_dma_pm_ops = {
+       SET_SYSTEM_SLEEP_PM_OPS(NULL, rn_pcm_resume)
+};
+
 static struct platform_driver renoir_driver = {
        .probe = renoir_audio_probe,
        .remove_new = renoir_audio_remove,
        .driver = {
                .name = "acp_asoc_renoir",
+               .pm = &rn_dma_pm_ops,
        },
 };