--- zzzz-none-000/linux-3.10.107/sound/soc/atmel/atmel-pcm.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/sound/soc/atmel/atmel-pcm.h	2021-02-04 17:41:59.000000000 +0000
@@ -83,11 +83,6 @@
 #define ssc_readx(base, reg)            (__raw_readl((base) + (reg)))
 #define ssc_writex(base, reg, value)    __raw_writel((value), (base) + (reg))
 
-int atmel_pcm_new(struct snd_soc_pcm_runtime *rtd);
-void atmel_pcm_free(struct snd_pcm *pcm);
-int atmel_pcm_mmap(struct snd_pcm_substream *substream,
-		struct vm_area_struct *vma);
-
 #if defined(CONFIG_SND_ATMEL_SOC_PDC) || \
 	defined(CONFIG_SND_ATMEL_SOC_PDC_MODULE)
 int atmel_pcm_pdc_platform_register(struct device *dev);