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driver core: Add ability for arch code to setup pdev_archdata

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On some architectures we need to setup pdev_archdata before we add the
device.  Waiting til a bus_notifier is too late since we might need the
pdev_archdata in the bus notifier.  One example is setting up of dma_mask
pointers such that it can be used in a bus_notifier.

We add weak noop version of arch_setup_pdev_archdata() and allow the arch
code to override with access the full definitions of struct device,
struct platform_device, and struct pdev_archdata.

Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala
2011-06-10 01:52:57 -05:00
parent 3160b09796
commit a77ce8167c
2 changed files with 22 additions and 0 deletions
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include/linux/platform_device.h
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@@ -42,6 +42,7 @@ extern void platform_device_unregister(struct platform_device *);
extern struct bus_type platform_bus_type;
extern struct device platform_bus;
extern void arch_setup_pdev_archdata(struct platform_device *);
extern struct resource *platform_get_resource(struct platform_device *, unsigned int, unsigned int);
extern int platform_get_irq(struct platform_device *, unsigned int);
extern struct resource *platform_get_resource_byname(struct platform_device *, unsigned int, const char *);