1 files changed, 7 insertions, 0 deletions

diff --git a/sound/soc/sprd/sprd-pcm-dma.c b/sound/soc/sprd/sprd-pcm-dma.c
index 9be6d4b2bf74..d38ebbbbf169 100644
--- a/sound/soc/sprd/sprd-pcm-dma.c
+++ b/sound/soc/sprd/sprd-pcm-dma.c
@@ -6,6 +6,7 @@
 #include <linux/dma/sprd-dma.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of_reserved_mem.h>
 #include <linux/platform_device.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -530,8 +531,14 @@ static const struct snd_soc_component_driver sprd_soc_component = {
 
 static int sprd_soc_platform_probe(struct platform_device *pdev)
 {
+        struct device_node *np = pdev->dev.of_node;
         int ret;
 
+        ret = of_reserved_mem_device_init_by_idx(&pdev->dev, np, 0);
+        if (ret)
+                dev_warn(&pdev->dev,
+                         "no reserved DMA memory for audio platform device\n");
+
         ret = devm_snd_soc_register_component(&pdev->dev, &sprd_soc_component,
                                               NULL, 0);
         if (ret)