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| author | Sudeep Holla <sudeep.holla@arm.com> | 2014-09-30 15:48:24 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-07 20:45:00 +0100 |
| commit | 3d52943b3a51497a777e6d7d840a38596a92cee9 (patch) | |
| tree | eb75d73033dab562bcd01de19cfe99fbc5cdc632 /include | |
| parent | topology: replace custom attribute macros with standard DEVICE_ATTR* (diff) | |
| download | linux-3d52943b3a51497a777e6d7d840a38596a92cee9.tar.xz linux-3d52943b3a51497a777e6d7d840a38596a92cee9.zip | |
drivers: base: add cpu_device_create to support per-cpu devices
This patch adds a new function to create per-cpu devices.
This helps in:
1. reusing the device infrastructure to create any cpu related
attributes and corresponding sysfs instead of creating and
dealing with raw kobjects directly
2. retaining the legacy path(/sys/devices/system/cpu/..) to support
existing sysfs ABI
3. avoiding to create links in the bus directory pointing to the
device as there would be per-cpu instance of these devices with
the same name since dev->bus is not populated to cpu_sysbus on
purpose
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/cpu.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h index b2d9a43012b2..4260e8594bd7 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -19,6 +19,7 @@ struct device; struct device_node; +struct attribute_group; struct cpu { int node_id; /* The node which contains the CPU */ @@ -39,6 +40,9 @@ extern void cpu_remove_dev_attr(struct device_attribute *attr); extern int cpu_add_dev_attr_group(struct attribute_group *attrs); extern void cpu_remove_dev_attr_group(struct attribute_group *attrs); +extern struct device *cpu_device_create(struct device *parent, void *drvdata, + const struct attribute_group **groups, + const char *fmt, ...); #ifdef CONFIG_HOTPLUG_CPU extern void unregister_cpu(struct cpu *cpu); extern ssize_t arch_cpu_probe(const char *, size_t); |