ASoC: Fix __iomem annotation for IDMA registers

We always store the register address as __iomem but pass it around as a
plain void * which upsets sparse.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/samsung/i2s.c

@@ -881,7 +881,7 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
 		writel(CON_RSTCLR, i2s->addr + I2SCON);
 
 	if (i2s->quirks & QUIRK_SEC_DAI)
-		idma_reg_addr_init((void *)i2s->addr,
+		idma_reg_addr_init(i2s->addr,
 					i2s->sec_dai->idma_playback.dma_addr);
 
 probe_exit:

sound/soc/samsung/idma.c

@@ -403,7 +403,7 @@ static int idma_new(struct snd_soc_pcm_runtime *rtd)
 	return ret;
 }
 
-void idma_reg_addr_init(void *regs, dma_addr_t addr)
+void idma_reg_addr_init(void __iomem *regs, dma_addr_t addr)
 {
 	spin_lock_init(&idma.lock);
 	idma.regs = regs;

sound/soc/samsung/idma.h

@@ -14,7 +14,7 @@
 #ifndef __SND_SOC_SAMSUNG_IDMA_H_
 #define __SND_SOC_SAMSUNG_IDMA_H_
 
-extern void idma_reg_addr_init(void *regs, dma_addr_t addr);
+extern void idma_reg_addr_init(void __iomem *regs, dma_addr_t addr);
 
 /* dma_state */
 #define LPAM_DMA_STOP	0