Commit d7aacadd authored Jul 08, 2009 by Magnus Damm Committed by Rafael J. Wysocki Jul 22, 2009

Driver Core: Add platform device arch data V3



Allow architecture specific data in struct platform_device V3.

With this patch struct pdev_archdata is added to struct
platform_device, similar to struct dev_archdata in found in
struct device. Useful for architecture code that needs to
keep extra data associated with each platform device.

Struct pdev_archdata is different from dev.platform_data, the
convention is that dev.platform_data points to driver-specific
data. It may or may not be required by the driver. The format
of this depends on driver but is the same across architectures.

The structure pdev_archdata is a place for architecture specific
data. This data is handled by architecture specific code (for
example runtime PM), and since it is architecture specific it
should _never_ be touched by device driver code. Exactly like
struct dev_archdata but for platform devices.

[rjw: This change is for power management mostly and that's why it
 goes through the suspend tree.]

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

parent aea1f796

arch/arm/include/asm/device.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -12,4 +12,7 @@ struct dev_archdata {
		#endif
		};

		struct pdev_archdata {
		};

		#endif

arch/ia64/include/asm/device.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -15,4 +15,7 @@ struct dev_archdata {
		#endif
		};

		struct pdev_archdata {
		};

		#endif /* _ASM_IA64_DEVICE_H */

arch/microblaze/include/asm/device.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,9 @@ struct dev_archdata {
		struct device_node *of_node;
		};

		struct pdev_archdata {
		};

		#endif /* _ASM_MICROBLAZE_DEVICE_H */

arch/powerpc/include/asm/device.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -30,4 +30,7 @@ dev_archdata_get_node(const struct dev_archdata *ad)
		return ad->of_node;
		}

		struct pdev_archdata {
		};

		#endif /* _ASM_POWERPC_DEVICE_H */

arch/sparc/include/asm/device.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -32,4 +32,7 @@ dev_archdata_get_node(const struct dev_archdata *ad)
		return ad->prom_node;
		}

		struct pdev_archdata {
		};

		#endif /* _ASM_SPARC_DEVICE_H */