diff options
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/Kconfig | 17 | ||||
| -rw-r--r-- | drivers/of/Makefile | 3 | ||||
| -rw-r--r-- | drivers/of/address.c | 2 | ||||
| -rw-r--r-- | drivers/of/device.c | 12 | ||||
| -rw-r--r-- | drivers/of/fdt.c | 17 | ||||
| -rw-r--r-- | drivers/of/overlay.c | 6 |
6 files changed, 41 insertions, 16 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 78a7dcbec7d8..65c3289fb2dc 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/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 293f80bd83dd..1c193610c950 100644 --- a/drivers/of/fdt.c +++ b/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); @@ -1018,6 +1018,11 @@ 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) { @@ -1025,6 +1030,12 @@ 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/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) { |