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Commit 53a42093 authored by Grant Likely's avatar Grant Likely
Browse files

of: Add device tree selftests 



Add some runtime test cases for the library of device tree parsing functions.

v2: - Add testcase for phandle with 0 args
    - Don't run testcases if testcase data isn't present in device tree

Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
parent 15c9a0ac

arch/arm/boot/dts/testcases/tests-phandle.dtsi

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/ {

	testcase-data {

		phandle-tests {

			provider0: provider0 {

				#phandle-cells = <0>;

			};



			provider1: provider1 {

				#phandle-cells = <1>;

			};



			provider2: provider2 {

				#phandle-cells = <2>;

			};



			provider3: provider3 {

				#phandle-cells = <3>;

			};



			consumer-a {

				phandle-list =	<&provider1 1>,

						<&provider2 2 0>,

						<0>,

						<&provider3 4 4 3>,

						<&provider2 5 100>,

						<&provider0>,

						<&provider1 7>;

				phandle-list-names = "first", "second", "third";



				phandle-list-bad-phandle = <12345678 0 0>;

				phandle-list-bad-args = <&provider2 1 0>,

							<&provider3 0>;

			};

		};

	};

};

arch/arm/boot/dts/testcases/tests.dtsi

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/include/ "tests-phandle.dtsi"

arch/arm/boot/dts/versatile-pb.dts

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@@ -46,3 +46,5 @@ 
		};

	};

};



/include/ "testcases/tests.dtsi"

drivers/of/Kconfig

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@@ -15,6 +15,15 @@ config PROC_DEVICETREE 
	  an image of the device tree that the kernel copies from Open

	  Firmware or other boot firmware. If unsure, say Y here.



config OF_SELFTEST

	bool "Device Tree Runtime self tests"

	help

	  This option builds in test cases for the device tree infrastructure

	  that are executed one at boot time, and the results dumped to the

	  console.



	  If unsure, say N here, but this option is safe to enable.



config OF_FLATTREE

	bool

	select DTC

drivers/of/Makefile

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@@ -8,6 +8,7 @@ obj-$(CONFIG_OF_GPIO) += gpio.o 
obj-$(CONFIG_OF_I2C)	+= of_i2c.o

obj-$(CONFIG_OF_NET)	+= of_net.o

obj-$(CONFIG_OF_SPI)	+= of_spi.o

obj-$(CONFIG_OF_SELFTEST) += selftest.o

obj-$(CONFIG_OF_MDIO)	+= of_mdio.o

obj-$(CONFIG_OF_PCI)	+= of_pci.o

obj-$(CONFIG_OF_PCI_IRQ)  += of_pci_irq.o