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of: selftest: add deferred probe interrupt test 

Signed-off-by: Rob Herring <robh@kernel.org>
[grant.likely: fixed failure when root node specifies the interrupt parent]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
This commit is contained in:
Rob Herring 2014-04-23 17:57:40 -05:00 committed by Grant Likely
parent ae107d0613
commit 82c0f5897a
2 changed files with 45 additions and 0 deletions
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32
drivers/of/selftest.c
View File

@ -10,6 +10,7 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/slab.h>
@ -427,6 +428,36 @@ static void __init of_selftest_match_node(void)
}
}
static void __init of_selftest_platform_populate(void)
{
int irq;
struct device_node *np;
struct platform_device *pdev;
np = of_find_node_by_path("/testcase-data");
of_platform_populate(np, of_default_bus_match_table, NULL, NULL);
/* Test that a missing irq domain returns -EPROBE_DEFER */
np = of_find_node_by_path("/testcase-data/testcase-device1");
pdev = of_find_device_by_node(np);
if (!pdev)
selftest(0, "device 1 creation failed\n");
irq = platform_get_irq(pdev, 0);
if (irq != -EPROBE_DEFER)
selftest(0, "device deferred probe failed - %d\n", irq);
/* Test that a parsing failure does not return -EPROBE_DEFER */
np = of_find_node_by_path("/testcase-data/testcase-device2");
pdev = of_find_device_by_node(np);
if (!pdev)
selftest(0, "device 2 creation failed\n");
irq = platform_get_irq(pdev, 0);
if (irq >= 0 || irq == -EPROBE_DEFER)
selftest(0, "device parsing error failed - %d\n", irq);
selftest(1, "passed");
}
static int __init of_selftest(void)
{
struct device_node *np;
@ -445,6 +476,7 @@ static int __init of_selftest(void)
of_selftest_parse_interrupts();
of_selftest_parse_interrupts_extended();
of_selftest_match_node();
of_selftest_platform_populate();
pr_info("end of selftest - %i passed, %i failed\n",
selftest_results.passed, selftest_results.failed);
return 0;

13
drivers/of/testcase-data/tests-interrupts.dtsi
View File

@ -54,5 +54,18 @@ interrupts-extended0 {
<&test_intmap1 1 2>;
};
};
testcase-device1 {
compatible = "testcase-device";
interrupt-parent = <&test_intc0>;
interrupts = <1>;
};
testcase-device2 {
compatible = "testcase-device";
interrupt-parent = <&test_intc2>;
interrupts = <1>; /* invalid specifier - too short */
};
};
};