The newly added AMD acp driver is missing an include for linux/io.h and fails to build on ARM:

sound/soc/amd/acp-pcm-dma.c: In function 'acp_reg_read': sound/soc/amd/acp-pcm-dma.c:83:9: error: implicit declaration of function 'readl' [-Werror=implicit-function-declaration]

This adds the missing line.

Signed-off-by: Arnd Bergmann arnd@arndb.de --- This build error also appeared today on linux-next with ARM randconfig

diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c index cc8b841b69b6..fa0311e4faed 100644 --- a/sound/soc/amd/acp-pcm-dma.c +++ b/sound/soc/amd/acp-pcm-dma.c @@ -17,6 +17,7 @@ #include <linux/delay.h> #include <linux/sizes.h> #include <linux/pm_runtime.h> +#include <linux/io.h>

#include <sound/soc.h>