ASoC: Intel: switch from ioremap_cache to memremap

In preparation for deprecating ioremap_cache() convert its usage in
skl-nhlt to memremap.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/intel/skylake/skl-nhlt.c b/sound/soc/intel/skylake/skl-nhlt.c
index 13036b1..b0c7bd1 100644
--- a/sound/soc/intel/skylake/skl-nhlt.c
+++ b/sound/soc/intel/skylake/skl-nhlt.c
@@ -25,7 +25,7 @@
 
 #define DSDT_NHLT_PATH "\\_SB.PCI0.HDAS"
 
-void __iomem *skl_nhlt_init(struct device *dev)
+void *skl_nhlt_init(struct device *dev)
 {
 	acpi_handle handle;
 	union acpi_object *obj;
@@ -40,17 +40,17 @@
 	if (obj && obj->type == ACPI_TYPE_BUFFER) {
 		nhlt_ptr = (struct nhlt_resource_desc  *)obj->buffer.pointer;
 
-		return ioremap_cache(nhlt_ptr->min_addr, nhlt_ptr->length);
+		return memremap(nhlt_ptr->min_addr, nhlt_ptr->length,
+				MEMREMAP_WB);
 	}
 
 	dev_err(dev, "device specific method to extract NHLT blob failed\n");
 	return NULL;
 }
 
-void skl_nhlt_free(void __iomem *addr)
+void skl_nhlt_free(void *addr)
 {
-	iounmap(addr);
-	addr = NULL;
+	memunmap(addr);
 }
 
 static struct nhlt_specific_cfg *skl_get_specific_cfg(