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d7aacaddca
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>
20 lines
320 B
C
20 lines
320 B
C
#ifndef _ASM_X86_DEVICE_H
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#define _ASM_X86_DEVICE_H
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struct dev_archdata {
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#ifdef CONFIG_ACPI
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void *acpi_handle;
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#endif
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#ifdef CONFIG_X86_64
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struct dma_map_ops *dma_ops;
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#endif
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#ifdef CONFIG_DMAR
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void *iommu; /* hook for IOMMU specific extension */
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#endif
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};
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struct pdev_archdata {
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};
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#endif /* _ASM_X86_DEVICE_H */
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