Merge remote-tracking branch 'robh/for-next' into devicetree/next

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -211,3 +211,4 @@ xillybus	Xillybus Ltd.
 xlnx	Xilinx
 zyxel	ZyXEL Communications Corp.
 zarlink	Zarlink Semiconductor
+zii	Zodiac Inflight Innovations

arch/arm/boot/compressed/libfdt_env.h

@@ -5,6 +5,10 @@
 #include <linux/string.h>
 #include <asm/byteorder.h>
 
+typedef __be16 fdt16_t;
+typedef __be32 fdt32_t;
+typedef __be64 fdt64_t;
+
 #define fdt16_to_cpu(x)		be16_to_cpu(x)
 #define cpu_to_fdt16(x)		cpu_to_be16(x)
 #define fdt32_to_cpu(x)		be32_to_cpu(x)

arch/mips/cavium-octeon/Makefile

@@ -9,9 +9,6 @@
 # Copyright (C) 2005-2009 Cavium Networks
 #
 
-CFLAGS_octeon-platform.o = -I$(src)/../../../scripts/dtc/libfdt
-CFLAGS_setup.o = -I$(src)/../../../scripts/dtc/libfdt
-
 obj-y := cpu.o setup.o octeon-platform.o octeon-irq.o csrc-octeon.o
 obj-y += dma-octeon.o
 obj-y += octeon-memcpy.o

arch/mips/include/asm/prom.h

@@ -11,7 +11,7 @@
 #ifndef __ASM_PROM_H
 #define __ASM_PROM_H
 
-#ifdef CONFIG_OF
+#ifdef CONFIG_USE_OF
 #include <linux/bug.h>
 #include <linux/io.h>
 #include <linux/types.h>

arch/mips/kernel/prom.c

@@ -18,6 +18,7 @@
 #include <linux/of_fdt.h>
 #include <linux/of_platform.h>
 
+#include <asm/bootinfo.h>
 #include <asm/page.h>
 #include <asm/prom.h>
 

arch/mips/mti-sead3/Makefile

@@ -15,5 +15,3 @@ obj-y				:= sead3-lcd.o sead3-display.o sead3-init.o \
 obj-y				+= leds-sead3.o
 
 obj-$(CONFIG_EARLY_PRINTK)	+= sead3-console.o
-
-CFLAGS_sead3-setup.o = -I$(src)/../../../scripts/dtc/libfdt

arch/powerpc/boot/libfdt_env.h

@@ -10,6 +10,10 @@ typedef u32 uint32_t;
 typedef u64 uint64_t;
 typedef unsigned long uintptr_t;
 
+typedef __be16 fdt16_t;
+typedef __be32 fdt32_t;
+typedef __be64 fdt64_t;
+
 #define fdt16_to_cpu(x)		be16_to_cpu(x)
 #define cpu_to_fdt16(x)		cpu_to_be16(x)
 #define fdt32_to_cpu(x)		be32_to_cpu(x)

arch/powerpc/boot/of.h

@@ -21,7 +21,9 @@ int of_setprop(const void *phandle, const char *name, const void *buf,
 /* Console functions */
 void of_console_init(void);
 
+typedef u16			__be16;
 typedef u32			__be32;
+typedef u64			__be64;
 
 #ifdef __LITTLE_ENDIAN__
 #define cpu_to_be16(x) swab16(x)

arch/powerpc/kernel/Makefile

@@ -2,7 +2,6 @@
 # Makefile for the linux kernel.
 #
 
-CFLAGS_prom.o		= -I$(src)/../../../scripts/dtc/libfdt
 CFLAGS_ptrace.o		+= -DUTS_MACHINE='"$(UTS_MACHINE)"'
 
 subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror

drivers/firmware/efi/libstub/Makefile

@@ -24,8 +24,6 @@ KASAN_SANITIZE			:= n
 lib-y				:= efi-stub-helper.o
 lib-$(CONFIG_EFI_ARMSTUB)	+= arm-stub.o fdt.o
 
-CFLAGS_fdt.o			+= -I$(srctree)/scripts/dtc/libfdt/
-
 #
 # arm64 puts the stub in the kernel proper, which will unnecessarily retain all
 # code indefinitely unless it is annotated as __init/__initdata/__initconst etc.

drivers/of/Kconfig

@@ -1,15 +1,20 @@
 config DTC
 	bool
 
-config OF
-	bool
+menuconfig OF
+	bool "Device Tree and Open Firmware support"
+	help
+	  This option enables the device tree infrastructure.
+	  It is automatically selected by platforms that need it or can
+	  be enabled manually for unittests, overlays or
+	  compile-coverage.
 
-menu "Device Tree and Open Firmware support"
-	depends on OF
+if OF
 
 config OF_UNITTEST
 	bool "Device Tree runtime unit tests"
-	depends on OF_IRQ && OF_EARLY_FLATTREE
+	depends on OF_IRQ
+	select OF_EARLY_FLATTREE
 	select OF_RESOLVE
 	help
 	  This option builds in test cases for the device tree infrastructure
@@ -97,4 +102,4 @@ config OF_OVERLAY
 	  While this option is selected automatically when needed, you can
 	  enable it manually to improve device tree unit test coverage.
 
-endmenu # OF
+endif # OF

drivers/of/Makefile

@@ -16,6 +16,3 @@ obj-$(CONFIG_OF_RESOLVE)  += resolver.o
 obj-$(CONFIG_OF_OVERLAY) += overlay.o
 
 obj-$(CONFIG_OF_UNITTEST) += unittest-data/
-
-CFLAGS_fdt.o = -I$(src)/../../scripts/dtc/libfdt
-CFLAGS_fdt_address.o = -I$(src)/../../scripts/dtc/libfdt

drivers/of/address.c

@@ -712,7 +712,7 @@ int __weak pci_register_io_range(phys_addr_t addr, resource_size_t size)
 	}
 
 	/* add the range to the list */
-	range = kzalloc(sizeof(*range), GFP_KERNEL);
+	range = kzalloc(sizeof(*range), GFP_ATOMIC);
 	if (!range) {
 		err = -ENOMEM;
 		goto end_register;

drivers/of/device.c

@@ -163,6 +163,18 @@ void of_device_unregister(struct platform_device *ofdev)
 }
 EXPORT_SYMBOL(of_device_unregister);
 
+const void *of_device_get_match_data(const struct device *dev)
+{
+	const struct of_device_id *match;
+
+	match = of_match_device(dev->driver->of_match_table, dev);
+	if (!match)
+		return NULL;
+
+	return match->data;
+}
+EXPORT_SYMBOL(of_device_get_match_data);
+
 ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len)
 {
 	const char *compat;

drivers/of/fdt.c

@@ -171,7 +171,7 @@ static void *unflatten_dt_alloc(void **mem, unsigned long size,
  * @dryrun: If true, do not allocate device nodes but still calculate needed
  * memory size
  */
-static void * unflatten_dt_node(void *blob,
+static void * unflatten_dt_node(const void *blob,
 				void *mem,
 				int *poffset,
 				struct device_node *dad,
@@ -381,7 +381,7 @@ static void * unflatten_dt_node(void *blob,
  * @dt_alloc: An allocator that provides a virtual address to memory
  * for the resulting tree
  */
-static void __unflatten_device_tree(void *blob,
+static void __unflatten_device_tree(const void *blob,
 			     struct device_node **mynodes,
 			     void * (*dt_alloc)(u64 size, u64 align))
 {
@@ -444,7 +444,7 @@ static void *kernel_tree_alloc(u64 size, u64 align)
  * pointers of the nodes so the normal device-tree walking functions
  * can be used.
  */
-void of_fdt_unflatten_tree(unsigned long *blob,
+void of_fdt_unflatten_tree(const unsigned long *blob,
 			struct device_node **mynodes)
 {
 	__unflatten_device_tree(blob, mynodes, &kernel_tree_alloc);
@@ -1018,13 +1018,24 @@ void * __init __weak early_init_dt_alloc_memory_arch(u64 size, u64 align)
 	return __va(memblock_alloc(size, align));
 }
 #else
+void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size)
+{
+	WARN_ON(1);
+}
+
 int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base,
 					phys_addr_t size, bool nomap)
 {
 	pr_err("Reserved memory not supported, ignoring range 0x%pa - 0x%pa%s\n",
 		  &base, &size, nomap ? " (nomap)" : "");
 	return -ENOSYS;
 }
+
+void * __init __weak early_init_dt_alloc_memory_arch(u64 size, u64 align)
+{
+	WARN_ON(1);
+	return NULL;
+}
 #endif
 
 bool __init early_init_dt_verify(void *params)

drivers/of/overlay.c

@@ -333,7 +333,7 @@ static DEFINE_IDR(ov_idr);
  * of the overlay in a list. This list can be used to prevent
  * illegal overlay removals.
  *
- * Returns the id of the created overlay, or an negative error number
+ * Returns the id of the created overlay, or a negative error number
  */
 int of_overlay_create(struct device_node *tree)
 {
@@ -481,7 +481,7 @@ static int overlay_removal_is_ok(struct of_overlay *ov)
  *
  * Removes an overlay if it is permissible.
  *
- * Returns 0 on success, or an negative error number
+ * Returns 0 on success, or a negative error number
  */
 int of_overlay_destroy(int id)
 {
@@ -528,7 +528,7 @@ EXPORT_SYMBOL_GPL(of_overlay_destroy);
  *
  * Removes all overlays from the system in the correct order.
  *
- * Returns 0 on success, or an negative error number
+ * Returns 0 on success, or a negative error number
  */
 int of_overlay_destroy_all(void)
 {

include/linux/libfdt_env.h

@@ -5,6 +5,10 @@
 
 #include <asm/byteorder.h>
 
+typedef __be16 fdt16_t;
+typedef __be32 fdt32_t;
+typedef __be64 fdt64_t;
+
 #define fdt32_to_cpu(x) be32_to_cpu(x)
 #define cpu_to_fdt32(x) cpu_to_be32(x)
 #define fdt64_to_cpu(x) be64_to_cpu(x)

include/linux/of.h

@@ -120,6 +120,12 @@ extern struct device_node *of_aliases;
 extern struct device_node *of_stdout;
 extern raw_spinlock_t devtree_lock;
 
+/* flag descriptions (need to be visible even when !CONFIG_OF) */
+#define OF_DYNAMIC	1 /* node and properties were allocated via kmalloc */
+#define OF_DETACHED	2 /* node has been detached from the device tree */
+#define OF_POPULATED	3 /* device already created for the node */
+#define OF_POPULATED_BUS	4 /* of_platform_populate recursed to children of this node */
+
 #ifdef CONFIG_OF
 static inline bool is_of_node(struct fwnode_handle *fwnode)
 {
@@ -217,12 +223,6 @@ static inline unsigned long of_read_ulong(const __be32 *cell, int size)
 #define of_node_cmp(s1, s2)		strcasecmp((s1), (s2))
 #endif
 
-/* flag descriptions */
-#define OF_DYNAMIC	1 /* node and properties were allocated via kmalloc */
-#define OF_DETACHED	2 /* node has been detached from the device tree */
-#define OF_POPULATED	3 /* device already created for the node */
-#define OF_POPULATED_BUS	4 /* of_platform_populate recursed to children of this node */
-
 #define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
 #define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
 
@@ -422,6 +422,11 @@ static inline struct device_node *of_find_node_opts_by_path(const char *path,
 	return NULL;
 }
 
+static inline struct device_node *of_find_node_by_phandle(phandle handle)
+{
+	return NULL;
+}
+
 static inline struct device_node *of_get_parent(const struct device_node *node)
 {
 	return NULL;
@@ -818,7 +823,7 @@ static inline int of_property_read_string_index(struct device_node *np,
  * @propname:	name of the property to be searched.
  *
  * Search for a property in a device node.
- * Returns true if the property exist false otherwise.
+ * Returns true if the property exists false otherwise.
  */
 static inline bool of_property_read_bool(const struct device_node *np,
 					 const char *propname)

include/linux/of_device.h

@@ -33,6 +33,8 @@ extern int of_device_add(struct platform_device *pdev);
 extern int of_device_register(struct platform_device *ofdev);
 extern void of_device_unregister(struct platform_device *ofdev);
 
+extern const void *of_device_get_match_data(const struct device *dev);
+
 extern ssize_t of_device_get_modalias(struct device *dev,
 					char *str, ssize_t len);
 
@@ -65,6 +67,11 @@ static inline int of_driver_match_device(struct device *dev,
 static inline void of_device_uevent(struct device *dev,
 			struct kobj_uevent_env *env) { }
 
+static inline const void *of_device_get_match_data(const struct device *dev)
+{
+	return NULL;
+}
+
 static inline int of_device_get_modalias(struct device *dev,
 				   char *str, ssize_t len)
 {

include/linux/of_fdt.h

@@ -37,7 +37,7 @@ extern bool of_fdt_is_big_endian(const void *blob,
 				 unsigned long node);
 extern int of_fdt_match(const void *blob, unsigned long node,
 			const char *const *compat);
-extern void of_fdt_unflatten_tree(unsigned long *blob,
+extern void of_fdt_unflatten_tree(const unsigned long *blob,
 			       struct device_node **mynodes);
 
 /* TBD: Temporary export of fdt globals - remove when code fully merged */