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SubjectRe: [PATCH] Driver Core: Add platform device arch data V2
Date
On Monday 01 June 2009, Magnus Damm wrote:
> From: Magnus Damm <damm@igel.co.jp>
>
> Allow architecture specific data in struct platform_device V2.
> The structure pdev_archdata is added to struct platform_device,
> similar to struct dev_archdata in struct device.
>
> Useful for architecture code that needs to keep extra data
> associated with each platform device. This data shall not
> be accessed by platform drivers, only architecture code.
>
> Needed for platform device runtime PM.

What exactly do you need this data for?

Rafael


> Signed-off-by: Magnus Damm <damm@igel.co.jp>
> ---
>
> Applies to next-20090529.
>
> 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)
>
>


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