Magnus Damm <magnus.damm@xxxxxxxxx> writes: > From: Magnus Damm <damm@xxxxxxxxxx> > > 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. > > Signed-off-by: Magnus Damm <damm@xxxxxxxxxx> Since there is no 'Feature-desired-by:' tag, I'll addd Acked-by: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx> For PM on ARM in general, and OMAP in particular we definitely need a generic way to handle arch-specific data per platform_device. Kevin > > Applies to next-20090610. > > Changes since V2: > - updated commit message, thanks to Rafael for feedback > > Changes since V1: > - post to lkml, keep linux-pm cc:ed > - add struct pdev_archdata to asm-generic > - add struct pdev_archdata to non-generic architectures > - drop Kconfig bits > > arch/arm/include/asm/device.h | 3 +++ > arch/ia64/include/asm/device.h | 3 +++ > arch/microblaze/include/asm/device.h | 3 +++ > arch/powerpc/include/asm/device.h | 3 +++ > arch/sparc/include/asm/device.h | 3 +++ > arch/x86/include/asm/device.h | 3 +++ > include/asm-generic/device.h | 3 +++ > include/linux/platform_device.h | 3 +++ > 8 files changed, 24 insertions(+) > > --- 0001/arch/arm/include/asm/device.h > +++ work/arch/arm/include/asm/device.h 2009-06-01 12:19:51.000000000 +0900 > @@ -12,4 +12,7 @@ struct dev_archdata { > #endif > }; > > +struct pdev_archdata { > +}; > + > #endif > --- 0001/arch/ia64/include/asm/device.h > +++ work/arch/ia64/include/asm/device.h 2009-06-01 12:18:11.000000000 +0900 > @@ -15,4 +15,7 @@ struct dev_archdata { > #endif > }; > > +struct pdev_archdata { > +}; > + > #endif /* _ASM_IA64_DEVICE_H */ > --- 0001/arch/microblaze/include/asm/device.h > +++ work/arch/microblaze/include/asm/device.h 2009-06-01 12:19:32.000000000 +0900 > @@ -16,6 +16,9 @@ struct dev_archdata { > struct device_node *of_node; > }; > > +struct pdev_archdata { > +}; > + > #endif /* _ASM_MICROBLAZE_DEVICE_H */ > > > --- 0001/arch/powerpc/include/asm/device.h > +++ work/arch/powerpc/include/asm/device.h 2009-06-01 12:16:28.000000000 +0900 > @@ -30,4 +30,7 @@ dev_archdata_get_node(const struct dev_a > return ad->of_node; > } > > +struct pdev_archdata { > +}; > + > #endif /* _ASM_POWERPC_DEVICE_H */ > --- 0001/arch/sparc/include/asm/device.h > +++ work/arch/sparc/include/asm/device.h 2009-06-01 12:18:57.000000000 +0900 > @@ -32,4 +32,7 @@ dev_archdata_get_node(const struct dev_a > return ad->prom_node; > } > > +struct pdev_archdata { > +}; > + > #endif /* _ASM_SPARC_DEVICE_H */ > --- 0001/arch/x86/include/asm/device.h > +++ work/arch/x86/include/asm/device.h 2009-06-01 12:17:28.000000000 +0900 > @@ -13,4 +13,7 @@ struct dma_map_ops *dma_ops; > #endif > }; > > +struct pdev_archdata { > +}; > + > #endif /* _ASM_X86_DEVICE_H */ > --- 0001/include/asm-generic/device.h > +++ work/include/asm-generic/device.h 2009-06-01 12:16:20.000000000 +0900 > @@ -9,4 +9,7 @@ > struct dev_archdata { > }; > > +struct pdev_archdata { > +}; > + > #endif /* _ASM_GENERIC_DEVICE_H */ > --- 0001/include/linux/platform_device.h > +++ work/include/linux/platform_device.h 2009-06-01 12:14:43.000000000 +0900 > @@ -22,6 +22,9 @@ struct platform_device { > struct resource * resource; > > struct platform_device_id *id_entry; > + > + /* arch specific additions */ > + struct pdev_archdata archdata; > }; > > #define platform_get_device_id(pdev) ((pdev)->id_entry) _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm