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Commit 946a6aa7 authored by Suzuki K Poulose's avatar Suzuki K Poulose Committed by Raghavendra Rao Ananta
Browse files

coresight: of: Use of_cpu_node_to_id helper 



Reuse the new generic helper, of_cpu_node_to_id() to map a
given CPU phandle to a logical CPU number.

Change-Id: I8ddf46a6ebcd84813759184b9f2df78a769a90a0
Acked-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
Tested-by: default avatarLeo Yan <leo.yan@linaro.org>
Signed-off-by: default avatarSuzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
Git-commit: 29198e3844caaaacb0e21eff634c5f1cfd7f89be
[rananta@codeaurora.org: resolved trivial merge conflicts]
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Signed-off-by: default avatarRaghavendra Rao Ananta <rananta@codeaurora.org>
parent 646e5c01

drivers/hwtracing/coresight/of_coresight.c

+6 −15
Original line number Diff line number Diff line
@@ -104,26 +104,17 @@ static int of_coresight_alloc_memory(struct device *dev, 
int of_coresight_get_cpu(const struct device_node *node)

{

	int cpu;

	bool found;

	struct device_node *dn, *np;

	struct device_node *dn;



	dn = of_parse_phandle(node, "cpu", 0);



	/* Affinity defaults to invalid */

	/* Affinity defaults to CPU0 */

	if (!dn)

		return -ENODEV;



	for_each_possible_cpu(cpu) {

		np = of_cpu_device_node_get(cpu);

		found = (dn == np);

		of_node_put(np);

		if (found)

			break;

	}

		return 0;

	cpu = of_cpu_node_to_id(dn);

	of_node_put(dn);



	/* Affinity to invalid if no cpu nodes are found */

	return found ? cpu : -ENODEV;

	/* Affinity to CPU0 if no cpu nodes are found */

	return (cpu < 0) ? 0 : cpu;

}

EXPORT_SYMBOL_GPL(of_coresight_get_cpu);