--- zzzz-none-000/linux-3.10.107/include/sound/pxa2xx-lib.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/include/sound/pxa2xx-lib.h	2021-02-04 17:41:59.000000000 +0000
@@ -6,20 +6,12 @@
 
 /* PCM */
 
-struct pxa2xx_pcm_dma_params {
-	char *name;			/* stream identifier */
-	u32 dcmd;			/* DMA descriptor dcmd field */
-	volatile u32 *drcmr;		/* the DMA request channel to use */
-	u32 dev_addr;			/* device physical address for DMA */
-};
-
 extern int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
 				struct snd_pcm_hw_params *params);
 extern int __pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream);
 extern int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
 extern snd_pcm_uframes_t pxa2xx_pcm_pointer(struct snd_pcm_substream *substream);
 extern int __pxa2xx_pcm_prepare(struct snd_pcm_substream *substream);
-extern void pxa2xx_pcm_dma_irq(int dma_ch, void *dev_id);
 extern int __pxa2xx_pcm_open(struct snd_pcm_substream *substream);
 extern int __pxa2xx_pcm_close(struct snd_pcm_substream *substream);
 extern int pxa2xx_pcm_mmap(struct snd_pcm_substream *substream,