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authorSudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>2013-06-17 12:58:45 +0100
committerSudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>2013-08-21 10:29:30 +0100
commitf86e4718f24b83be0c42894d2b97accc993d65d3 (patch)
tree4db96ad4430daf64920b689d516626ab2e09821a
parent973e02c1e89768d13be259bf77f88b5cfd16bade (diff)
driver/core: cpu: initialize of_node in cpu's device struture
CPUs are also registered as devices but the of_node in these cpu devices are not initialized. Currently different drivers requiring to access cpu device node are parsing the nodes themselves and initialising the of_node in cpu device. The of_node in all the cpu devices needs to be initialized properly and at one place. The best place to update this is CPU subsystem driver when registering the cpu devices. The OF/DT core library now provides of_get_cpu_node to retrieve a cpu device node for a given logical index by abstracting the architecture specific details. This patch uses of_get_cpu_node to assign of_node when registering the cpu devices. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
-rw-r--r--drivers/base/cpu.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 4c358bc44c72..4cf071764be3 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -14,6 +14,7 @@
#include <linux/slab.h>
#include <linux/percpu.h>
#include <linux/acpi.h>
+#include <linux/of.h>
#include "base.h"
@@ -289,6 +290,7 @@ int register_cpu(struct cpu *cpu, int num)
cpu->dev.release = cpu_device_release;
cpu->dev.offline_disabled = !cpu->hotpluggable;
cpu->dev.offline = !cpu_online(num);
+ cpu->dev.of_node = of_get_cpu_node(num, NULL);
#ifdef CONFIG_ARCH_HAS_CPU_AUTOPROBE
cpu->dev.bus->uevent = arch_cpu_uevent;
#endif