dm: core: Use const device for the devfdt...() interface

These functions do not modify the device so should use a const pointer to
it. Update the code accordingly.
Signed-off-by: NSimon Glass <sjg@chromium.org>

drivers/core/fdtaddr.c

@@ -16,7 +16,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-fdt_addr_t devfdt_get_addr_index(struct udevice *dev, int index)
+fdt_addr_t devfdt_get_addr_index(const struct udevice *dev, int index)
 {
 #if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
 	fdt_addr_t addr;
@@ -91,8 +91,8 @@ fdt_addr_t devfdt_get_addr_index(struct udevice *dev, int index)
 #endif
 }
 
-fdt_addr_t devfdt_get_addr_size_index(struct udevice *dev, int index,
-				   fdt_size_t *size)
+fdt_addr_t devfdt_get_addr_size_index(const struct udevice *dev, int index,
+				      fdt_size_t *size)
 {
 #if CONFIG_IS_ENABLED(OF_CONTROL)
 	/*
@@ -113,7 +113,7 @@ fdt_addr_t devfdt_get_addr_size_index(struct udevice *dev, int index,
 #endif
 }
 
-fdt_addr_t devfdt_get_addr_name(struct udevice *dev, const char *name)
+fdt_addr_t devfdt_get_addr_name(const struct udevice *dev, const char *name)
 {
 #if CONFIG_IS_ENABLED(OF_CONTROL)
 	int index;
@@ -129,8 +129,8 @@ fdt_addr_t devfdt_get_addr_name(struct udevice *dev, const char *name)
 #endif
 }
 
-fdt_addr_t devfdt_get_addr_size_name(struct udevice *dev, const char *name,
-				     fdt_size_t *size)
+fdt_addr_t devfdt_get_addr_size_name(const struct udevice *dev,
+				     const char *name, fdt_size_t *size)
 {
 #if CONFIG_IS_ENABLED(OF_CONTROL)
 	int index;
@@ -146,17 +146,17 @@ fdt_addr_t devfdt_get_addr_size_name(struct udevice *dev, const char *name,
 #endif
 }
 
-fdt_addr_t devfdt_get_addr(struct udevice *dev)
+fdt_addr_t devfdt_get_addr(const struct udevice *dev)
 {
 	return devfdt_get_addr_index(dev, 0);
 }
 
-void *devfdt_get_addr_ptr(struct udevice *dev)
+void *devfdt_get_addr_ptr(const struct udevice *dev)
 {
 	return (void *)(uintptr_t)devfdt_get_addr_index(dev, 0);
 }
 
-void *devfdt_remap_addr_index(struct udevice *dev, int index)
+void *devfdt_remap_addr_index(const struct udevice *dev, int index)
 {
 	fdt_addr_t addr = devfdt_get_addr_index(dev, index);
 
@@ -166,7 +166,7 @@ void *devfdt_remap_addr_index(struct udevice *dev, int index)
 	return map_physmem(addr, 0, MAP_NOCACHE);
 }
 
-void *devfdt_remap_addr_name(struct udevice *dev, const char *name)
+void *devfdt_remap_addr_name(const struct udevice *dev, const char *name)
 {
 	fdt_addr_t addr = devfdt_get_addr_name(dev, name);
 
@@ -176,12 +176,12 @@ void *devfdt_remap_addr_name(struct udevice *dev, const char *name)
 	return map_physmem(addr, 0, MAP_NOCACHE);
 }
 
-void *devfdt_remap_addr(struct udevice *dev)
+void *devfdt_remap_addr(const struct udevice *dev)
 {
 	return devfdt_remap_addr_index(dev, 0);
 }
 
-void *devfdt_map_physmem(struct udevice *dev, unsigned long size)
+void *devfdt_map_physmem(const struct udevice *dev, unsigned long size)
 {
 	fdt_addr_t addr = devfdt_get_addr(dev);
 
@@ -191,7 +191,7 @@ void *devfdt_map_physmem(struct udevice *dev, unsigned long size)
 	return map_physmem(addr, size, MAP_NOCACHE);
 }
 
-fdt_addr_t devfdt_get_addr_pci(struct udevice *dev)
+fdt_addr_t devfdt_get_addr_pci(const struct udevice *dev)
 {
 	ulong addr;
 

include/dm/fdtaddr.h

@@ -21,7 +21,7 @@ struct udevice;
  *
  * @return addr
  */
-fdt_addr_t devfdt_get_addr(struct udevice *dev);
+fdt_addr_t devfdt_get_addr(const struct udevice *dev);
 
 /**
  * devfdt_get_addr_ptr() - Return pointer to the address of the reg property
@@ -31,7 +31,7 @@ fdt_addr_t devfdt_get_addr(struct udevice *dev);
  *
  * @return Pointer to addr, or NULL if there is no such property
  */
-void *devfdt_get_addr_ptr(struct udevice *dev);
+void *devfdt_get_addr_ptr(const struct udevice *dev);
 
 /**
  * devfdt_remap_addr() - Return pointer to the memory-mapped I/O address
@@ -41,7 +41,7 @@ void *devfdt_get_addr_ptr(struct udevice *dev);
  *
  * @return Pointer to addr, or NULL if there is no such property
  */
-void *devfdt_remap_addr(struct udevice *dev);
+void *devfdt_remap_addr(const struct udevice *dev);
 
 /**
  * devfdt_remap_addr_index() - Return indexed pointer to the memory-mapped
@@ -53,7 +53,7 @@ void *devfdt_remap_addr(struct udevice *dev);
  *
  * @return Pointer to addr, or NULL if there is no such property
  */
-void *devfdt_remap_addr_index(struct udevice *dev, int index);
+void *devfdt_remap_addr_index(const struct udevice *dev, int index);
 
 /**
  * devfdt_remap_addr_name() - Get the reg property of a device, indexed by
@@ -66,7 +66,7 @@ void *devfdt_remap_addr_index(struct udevice *dev, int index);
  *
  * @return Pointer to addr, or NULL if there is no such property
  */
-void *devfdt_remap_addr_name(struct udevice *dev, const char *name);
+void *devfdt_remap_addr_name(const struct udevice *dev, const char *name);
 
 /**
  * devfdt_map_physmem() - Read device address from reg property of the
@@ -79,7 +79,7 @@ void *devfdt_remap_addr_name(struct udevice *dev, const char *name);
  * @return  mapped address, or NULL if the device does not have reg
  *          property.
  */
-void *devfdt_map_physmem(struct udevice *dev, unsigned long size);
+void *devfdt_map_physmem(const struct udevice *dev, unsigned long size);
 
 /**
  * devfdt_get_addr_index() - Get the indexed reg property of a device
@@ -90,7 +90,7 @@ void *devfdt_map_physmem(struct udevice *dev, unsigned long size);
  *
  * @return addr
  */
-fdt_addr_t devfdt_get_addr_index(struct udevice *dev, int index);
+fdt_addr_t devfdt_get_addr_index(const struct udevice *dev, int index);
 
 /**
  * devfdt_get_addr_size_index() - Get the indexed reg property of a device
@@ -105,8 +105,8 @@ fdt_addr_t devfdt_get_addr_index(struct udevice *dev, int index);
  *
  * @return addr
  */
-fdt_addr_t devfdt_get_addr_size_index(struct udevice *dev, int index,
-				   fdt_size_t *size);
+fdt_addr_t devfdt_get_addr_size_index(const struct udevice *dev, int index,
+				      fdt_size_t *size);
 
 /**
  * devfdt_get_addr_name() - Get the reg property of a device, indexed by name
@@ -118,7 +118,7 @@ fdt_addr_t devfdt_get_addr_size_index(struct udevice *dev, int index,
  *
  * @return addr
  */
-fdt_addr_t devfdt_get_addr_name(struct udevice *dev, const char *name);
+fdt_addr_t devfdt_get_addr_name(const struct udevice *dev, const char *name);
 
 /**
  * devfdt_get_addr_size_name() - Get the reg property and its size for a device,
@@ -135,8 +135,8 @@ fdt_addr_t devfdt_get_addr_name(struct udevice *dev, const char *name);
  *
  * @return addr
  */
-fdt_addr_t devfdt_get_addr_size_name(struct udevice *dev, const char *name,
-				     fdt_size_t *size);
+fdt_addr_t devfdt_get_addr_size_name(const struct udevice *dev,
+				     const char *name, fdt_size_t *size);
 
 /**
  * devfdt_get_addr_pci() - Read an address and handle PCI address translation
@@ -144,6 +144,6 @@ fdt_addr_t devfdt_get_addr_size_name(struct udevice *dev, const char *name,
  * @dev: Device to read from
  * @return address or FDT_ADDR_T_NONE if not found
  */
-fdt_addr_t devfdt_get_addr_pci(struct udevice *dev);
+fdt_addr_t devfdt_get_addr_pci(const struct udevice *dev);
 
 #endif