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authorLinus Torvalds <torvalds@linux-foundation.org>2015-07-02 04:40:18 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2015-07-02 04:40:18 +0200
commit4da3064d1775810f10f7ddc1c34c3f1ff502a654 (patch)
treedc4cd9b546e5d702226f5e3e6bf165867140985c /drivers/of
parentMerge git://www.linux-watchdog.org/linux-watchdog (diff)
parentof/irq: Rename "intc_desc" to "of_intc_desc" to fix OF on sh (diff)
downloadlinux-4da3064d1775810f10f7ddc1c34c3f1ff502a654.tar.xz
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Merge tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux
Pull devicetree updates from Grant Likely: "A whole lot of bug fixes. Nothing stands out here except the ability to enable CONFIG_OF on every architecture, and an import of a newer version of dtc" * tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux: (22 commits) of/irq: Rename "intc_desc" to "of_intc_desc" to fix OF on sh of/irq: Fix pSeries boot failure Documentation: DT: Fix a typo in the filename "lantiq,<chip>-pinumx.txt" of: define of_find_node_by_phandle for !CONFIG_OF of/address: use atomic allocation in pci_register_io_range() of: Add vendor prefix for Zodiac Inflight Innovations dt/fdt: add empty versions of early_init_dt_*_memory_arch of: clean-up unnecessary libfdt include paths of: make unittest select OF_EARLY_FLATTREE instead of depend on it of: make CONFIG_OF user selectable MIPS: prepare for user enabling of CONFIG_OF of/fdt: fix argument name and add comments of unflatten_dt_node() of: return NUMA_NO_NODE from fallback of_node_to_nid() tps6507x.txt: Remove executable permission of/overlay: Grammar s/an negative/a negative/ of/fdt: Make fdt blob input parameters of unflatten functions const of: add helper function to retrive match data of: Grammar s/property exist/property exists/ of: Move OF flags to be visible even when !CONFIG_OF scripts/dtc: Update to upstream version 9d3649bd3be245c9 ...
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/Kconfig17
-rw-r--r--drivers/of/Makefile3
-rw-r--r--drivers/of/address.c2
-rw-r--r--drivers/of/base.c2
-rw-r--r--drivers/of/device.c12
-rw-r--r--drivers/of/fdt.c22
-rw-r--r--drivers/of/irq.c9
-rw-r--r--drivers/of/overlay.c6
8 files changed, 50 insertions, 23 deletions
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index 07bb3c8f191b..8df1b1777745 100644
--- a/drivers/of/Kconfig
+++ b/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
diff --git a/drivers/of/Makefile b/drivers/of/Makefile
index fcacb186a67b..156c072b3117 100644
--- a/drivers/of/Makefile
+++ b/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
diff --git a/drivers/of/address.c b/drivers/of/address.c
index 6906a3f61bd8..8bfda6ade2c0 100644
--- a/drivers/of/address.c
+++ b/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;
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 6f85ff74c10d..8b5a187a7682 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -89,7 +89,7 @@ EXPORT_SYMBOL(of_n_size_cells);
#ifdef CONFIG_NUMA
int __weak of_node_to_nid(struct device_node *np)
{
- return numa_node_id();
+ return NUMA_NO_NODE;
}
#endif
diff --git a/drivers/of/device.c b/drivers/of/device.c
index 20c1332a0018..8b91ea241b10 100644
--- a/drivers/of/device.c
+++ b/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;
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index f2dd23a32267..07496560e5b9 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -164,11 +164,14 @@ static void *unflatten_dt_alloc(void **mem, unsigned long size,
* unflatten_dt_node - Alloc and populate a device_node from the flat tree
* @blob: The parent device tree blob
* @mem: Memory chunk to use for allocating device nodes and properties
- * @p: pointer to node in flat tree
+ * @poffset: pointer to node in flat tree
* @dad: Parent struct device_node
+ * @nodepp: The device_node tree created by the call
* @fpsize: Size of the node path up at the current depth.
+ * @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,
@@ -378,7 +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))
{
@@ -441,7 +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);
@@ -1024,6 +1027,11 @@ 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)
{
@@ -1031,6 +1039,12 @@ int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base,
&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)
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 1a7980692f25..3cf7a01f557f 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -252,8 +252,6 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
* Successfully parsed an interrrupt-map translation; copy new
* interrupt specifier into the out_irq structure
*/
- out_irq->np = newpar;
-
match_array = imap - newaddrsize - newintsize;
for (i = 0; i < newintsize; i++)
out_irq->args[i] = be32_to_cpup(imap - newintsize + i);
@@ -262,6 +260,7 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
skiplevel:
/* Iterate again with new parent */
+ out_irq->np = newpar;
pr_debug(" -> new parent: %s\n", of_node_full_name(newpar));
of_node_put(ipar);
ipar = newpar;
@@ -469,7 +468,7 @@ int of_irq_to_resource_table(struct device_node *dev, struct resource *res,
}
EXPORT_SYMBOL_GPL(of_irq_to_resource_table);
-struct intc_desc {
+struct of_intc_desc {
struct list_head list;
struct device_node *dev;
struct device_node *interrupt_parent;
@@ -485,7 +484,7 @@ struct intc_desc {
void __init of_irq_init(const struct of_device_id *matches)
{
struct device_node *np, *parent = NULL;
- struct intc_desc *desc, *temp_desc;
+ struct of_intc_desc *desc, *temp_desc;
struct list_head intc_desc_list, intc_parent_list;
INIT_LIST_HEAD(&intc_desc_list);
@@ -496,7 +495,7 @@ void __init of_irq_init(const struct of_device_id *matches)
!of_device_is_available(np))
continue;
/*
- * Here, we allocate and populate an intc_desc with the node
+ * Here, we allocate and populate an of_intc_desc with the node
* pointer, interrupt-parent device_node etc.
*/
desc = kzalloc(sizeof(*desc), GFP_KERNEL);
diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c
index dee9270ba547..24e025f79299 100644
--- a/drivers/of/overlay.c
+++ b/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)
{