On Wednesday 27 May 2009, Magnus Damm wrote:
> From: Magnus Damm <damm@xxxxxxxxxx>
>
> Allow architecture specific data in struct platform_device.
> Platform device data is needed by the runtime pm code. A similar
> struct already exists for struct device.
>
> The architecture specific asm/device.h file needs to provide
> struct pdev_archdata if CONFIG_HAVE_PLATFORM_DEVICE_DATA is set.
>
> Signed-off-by: Magnus Damm <damm@xxxxxxxxxx>
> ---
>
> Optionally we can make use of struct device archdata instead,
> but since the runtime device pm is limited to platform devices
> it makes sense to make this data platform device specific imo.
>
> arch/Kconfig | 3 +++
> include/linux/platform_device.h | 5 +++++
> 2 files changed, 8 insertions(+)
>
> --- 0001/arch/Kconfig
> +++ work/arch/Kconfig 2009-05-15 14:51:35.000000000 +0900
> @@ -112,3 +112,6 @@ config HAVE_DMA_API_DEBUG
>
> config HAVE_DEFAULT_NO_SPIN_MUTEXES
> bool
> +
> +config HAVE_PLATFORM_DEVICE_ARCHDATA
Hmm. Do we really need yet another CONFIG_ option for that?
> + bool
> --- 0001/include/linux/platform_device.h
> +++ work/include/linux/platform_device.h 2009-05-15 16:59:01.000000000 +0900
> @@ -23,6 +23,11 @@ struct platform_device {
> void *platform_data;
>
> struct platform_device_id *id_entry;
> +
> +#ifdef CONFIG_HAVE_PLATFORM_DEVICE_ARCHDATA
> + /* arch specific additions */
> + struct pdev_archdata archdata;
> +#endif
> };
>
> #define platform_get_device_id(pdev) ((pdev)->id_entry)
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