--- zzzz-none-000/linux-3.10.107/lib/devres.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/lib/devres.c	2021-02-04 17:41:59.000000000 +0000
@@ -23,7 +23,7 @@
  * Managed ioremap().  Map is automatically unmapped on driver detach.
  */
 void __iomem *devm_ioremap(struct device *dev, resource_size_t offset,
-			   unsigned long size)
+			   resource_size_t size)
 {
 	void __iomem **ptr, *addr;
 
@@ -52,7 +52,7 @@
  * detach.
  */
 void __iomem *devm_ioremap_nocache(struct device *dev, resource_size_t offset,
-				   unsigned long size)
+				   resource_size_t size)
 {
 	void __iomem **ptr, *addr;
 
@@ -72,6 +72,34 @@
 EXPORT_SYMBOL(devm_ioremap_nocache);
 
 /**
+ * devm_ioremap_wc - Managed ioremap_wc()
+ * @dev: Generic device to remap IO address for
+ * @offset: BUS offset to map
+ * @size: Size of map
+ *
+ * Managed ioremap_wc().  Map is automatically unmapped on driver detach.
+ */
+void __iomem *devm_ioremap_wc(struct device *dev, resource_size_t offset,
+			      resource_size_t size)
+{
+	void __iomem **ptr, *addr;
+
+	ptr = devres_alloc(devm_ioremap_release, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return NULL;
+
+	addr = ioremap_wc(offset, size);
+	if (addr) {
+		*ptr = addr;
+		devres_add(dev, ptr);
+	} else
+		devres_free(ptr);
+
+	return addr;
+}
+EXPORT_SYMBOL(devm_ioremap_wc);
+
+/**
  * devm_iounmap - Managed iounmap()
  * @dev: Generic device to unmap for
  * @addr: Address to unmap
@@ -81,7 +109,7 @@
 void devm_iounmap(struct device *dev, void __iomem *addr)
 {
 	WARN_ON(devres_destroy(dev, devm_ioremap_release, devm_ioremap_match,
-			       (void *)addr));
+			       (__force void *)addr));
 	iounmap(addr);
 }
 EXPORT_SYMBOL(devm_iounmap);
@@ -91,10 +119,9 @@
  * @dev: generic device to handle the resource for
  * @res: resource to be handled
  *
- * Checks that a resource is a valid memory region, requests the memory region
- * and ioremaps it either as cacheable or as non-cacheable memory depending on
- * the resource's flags. All operations are managed and will be undone on
- * driver detach.
+ * Checks that a resource is a valid memory region, requests the memory
+ * region and ioremaps it. All operations are managed and will be undone
+ * on driver detach.
  *
  * Returns a pointer to the remapped memory or an ERR_PTR() encoded error code
  * on failure. Usage example:
@@ -114,7 +141,7 @@
 
 	if (!res || resource_type(res) != IORESOURCE_MEM) {
 		dev_err(dev, "invalid resource\n");
-		return ERR_PTR(-EINVAL);
+		return IOMEM_ERR_PTR(-EINVAL);
 	}
 
 	size = resource_size(res);
@@ -122,53 +149,21 @@
 
 	if (!devm_request_mem_region(dev, res->start, size, name)) {
 		dev_err(dev, "can't request region for resource %pR\n", res);
-		return ERR_PTR(-EBUSY);
+		return IOMEM_ERR_PTR(-EBUSY);
 	}
 
-	if (res->flags & IORESOURCE_CACHEABLE)
-		dest_ptr = devm_ioremap(dev, res->start, size);
-	else
-		dest_ptr = devm_ioremap_nocache(dev, res->start, size);
-
+	dest_ptr = devm_ioremap(dev, res->start, size);
 	if (!dest_ptr) {
 		dev_err(dev, "ioremap failed for resource %pR\n", res);
 		devm_release_mem_region(dev, res->start, size);
-		dest_ptr = ERR_PTR(-ENOMEM);
+		dest_ptr = IOMEM_ERR_PTR(-ENOMEM);
 	}
 
 	return dest_ptr;
 }
 EXPORT_SYMBOL(devm_ioremap_resource);
 
-/**
- * devm_request_and_ioremap() - Check, request region, and ioremap resource
- * @dev: Generic device to handle the resource for
- * @res: resource to be handled
- *
- * Takes all necessary steps to ioremap a mem resource. Uses managed device, so
- * everything is undone on driver detach. Checks arguments, so you can feed
- * it the result from e.g. platform_get_resource() directly. Returns the
- * remapped pointer or NULL on error. Usage example:
- *
- *	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- *	base = devm_request_and_ioremap(&pdev->dev, res);
- *	if (!base)
- *		return -EADDRNOTAVAIL;
- */
-void __iomem *devm_request_and_ioremap(struct device *device,
-				       struct resource *res)
-{
-	void __iomem *dest_ptr;
-
-	dest_ptr = devm_ioremap_resource(device, res);
-	if (IS_ERR(dest_ptr))
-		return NULL;
-
-	return dest_ptr;
-}
-EXPORT_SYMBOL(devm_request_and_ioremap);
-
-#ifdef CONFIG_HAS_IOPORT
+#ifdef CONFIG_HAS_IOPORT_MAP
 /*
  * Generic iomap devres
  */
@@ -192,7 +187,7 @@
  * Managed ioport_map().  Map is automatically unmapped on driver
  * detach.
  */
-void __iomem * devm_ioport_map(struct device *dev, unsigned long port,
+void __iomem *devm_ioport_map(struct device *dev, unsigned long port,
 			       unsigned int nr)
 {
 	void __iomem **ptr, *addr;
@@ -224,10 +219,10 @@
 {
 	ioport_unmap(addr);
 	WARN_ON(devres_destroy(dev, devm_ioport_map_release,
-			       devm_ioport_map_match, (void *)addr));
+			       devm_ioport_map_match, (__force void *)addr));
 }
 EXPORT_SYMBOL(devm_ioport_unmap);
-#endif /* CONFIG_HAS_IOPORT */
+#endif /* CONFIG_HAS_IOPORT_MAP */
 
 #ifdef CONFIG_PCI
 /*
@@ -263,7 +258,7 @@
  * be safely called without context and guaranteed to succed once
  * allocated.
  */
-void __iomem * const * pcim_iomap_table(struct pci_dev *pdev)
+void __iomem * const *pcim_iomap_table(struct pci_dev *pdev)
 {
 	struct pcim_iomap_devres *dr, *new_dr;
 
@@ -288,7 +283,7 @@
  * Managed pci_iomap().  Map is automatically unmapped on driver
  * detach.
  */
-void __iomem * pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen)
+void __iomem *pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen)
 {
 	void __iomem **tbl;