ALSA: hda - Mark reg op args as iomem

The ops to read and write registers should take pointers labeled as
__iomem.  Thanks to the sparse bot for catching this.
Signed-off-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_intel.c

@@ -1431,32 +1431,32 @@ static void azx_firmware_cb(const struct firmware *fw, void *context)
  */
 
 /* PCI register access. */
-static void pci_azx_writel(u32 value, u32 *addr)
+static void pci_azx_writel(u32 value, u32 __iomem *addr)
 {
 	writel(value, addr);
 }
 
-static u32 pci_azx_readl(u32 *addr)
+static u32 pci_azx_readl(u32 __iomem *addr)
 {
 	return readl(addr);
 }
 
-static void pci_azx_writew(u16 value, u16 *addr)
+static void pci_azx_writew(u16 value, u16 __iomem *addr)
 {
 	writew(value, addr);
 }
 
-static u16 pci_azx_readw(u16 *addr)
+static u16 pci_azx_readw(u16 __iomem *addr)
 {
 	return readw(addr);
 }
 
-static void pci_azx_writeb(u8 value, u8 *addr)
+static void pci_azx_writeb(u8 value, u8 __iomem *addr)
 {
 	writeb(value, addr);
 }
 
-static u8 pci_azx_readb(u8 *addr)
+static u8 pci_azx_readb(u8 __iomem *addr)
 {
 	return readb(addr);
 }

sound/pci/hda/hda_priv.h

@@ -290,12 +290,12 @@ struct azx;
 /* Functions to read/write to hda registers. */
 struct hda_controller_ops {
 	/* Register Access */
-	void (*reg_writel)(u32 value, u32 *addr);
-	u32 (*reg_readl)(u32 *addr);
-	void (*reg_writew)(u16 value, u16 *addr);
-	u16 (*reg_readw)(u16 *addr);
-	void (*reg_writeb)(u8 value, u8 *addr);
-	u8 (*reg_readb)(u8 *addr);
+	void (*reg_writel)(u32 value, u32 __iomem *addr);
+	u32 (*reg_readl)(u32 __iomem *addr);
+	void (*reg_writew)(u16 value, u16 __iomem *addr);
+	u16 (*reg_readw)(u16 __iomem *addr);
+	void (*reg_writeb)(u8 value, u8 __iomem *addr);
+	u8 (*reg_readb)(u8 __iomem *addr);
 	/* Disable msi if supported, PCI only */
 	int (*disable_msi_reset_irq)(struct azx *);
 	/* Allocation ops */