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Subject[PATCH -next] ASoC: AMD: Add missing include file
arm:allmodconfig, s390:allmodconfig, sparc64:allmodconfig, and probably
other builds fail with

sound/soc/amd/acp-pcm-dma.c:83:2: error:
implicit declaration of function ‘readl’
sound/soc/amd/acp-pcm-dma.c:88:2: error:
implicit declaration of function ‘writel’

Include linux/io.h explicitly to fix the problem.

Fixes: 7c31335a03b6a ("ASoC: AMD: add AMD ASoC ACP 2.x DMA driver")
Cc: Maruthi Srinivas Bayyavarapu <>
Signed-off-by: Guenter Roeck <>
sound/soc/amd/acp-pcm-dma.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index cc8b841b69b6..3191e0a7d273 100644
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -15,6 +15,7 @@

#include <linux/module.h>
#include <linux/delay.h>
+#include <linux/io.h>
#include <linux/sizes.h>
#include <linux/pm_runtime.h>

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