forked from luck/tmp_suning_uos_patched
b31384fa5d
Add a uniform interface by which device drivers can request device properties from the platform firmware by providing a property name and the corresponding data type. The purpose of it is to help to write portable code that won't depend on any particular platform firmware interface. The following general helper functions are added: device_property_present() device_property_read_u8() device_property_read_u16() device_property_read_u32() device_property_read_u64() device_property_read_string() device_property_read_u8_array() device_property_read_u16_array() device_property_read_u32_array() device_property_read_u64_array() device_property_read_string_array() The first one allows the caller to check if the given property is present. The next 5 of them allow single-valued properties of various types to be retrieved in a uniform way. The remaining 5 are for reading properties with multiple values (arrays of either numbers or strings). The interface covers both ACPI and Device Trees. This change set includes material from Mika Westerberg and Aaron Lu. Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Grant Likely <grant.likely@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
28 lines
900 B
Makefile
28 lines
900 B
Makefile
# Makefile for the Linux device tree
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obj-y := component.o core.o bus.o dd.o syscore.o \
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driver.o class.o platform.o \
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cpu.o firmware.o init.o map.o devres.o \
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attribute_container.o transport_class.o \
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topology.o container.o property.o
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obj-$(CONFIG_DEVTMPFS) += devtmpfs.o
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obj-$(CONFIG_DMA_CMA) += dma-contiguous.o
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obj-y += power/
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obj-$(CONFIG_HAS_DMA) += dma-mapping.o
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obj-$(CONFIG_HAVE_GENERIC_DMA_COHERENT) += dma-coherent.o
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obj-$(CONFIG_ISA) += isa.o
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obj-$(CONFIG_FW_LOADER) += firmware_class.o
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obj-$(CONFIG_NUMA) += node.o
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obj-$(CONFIG_MEMORY_HOTPLUG_SPARSE) += memory.o
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ifeq ($(CONFIG_SYSFS),y)
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obj-$(CONFIG_MODULES) += module.o
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endif
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obj-$(CONFIG_SYS_HYPERVISOR) += hypervisor.o
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obj-$(CONFIG_REGMAP) += regmap/
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obj-$(CONFIG_SOC_BUS) += soc.o
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obj-$(CONFIG_PINCTRL) += pinctrl.o
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obj-$(CONFIG_DEV_COREDUMP) += devcoredump.o
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ccflags-$(CONFIG_DEBUG_DRIVER) := -DDEBUG
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