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authorMagnus Damm <damm@igel.co.jp>2009-07-08 13:21:31 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2009-07-22 00:28:38 +0200
commitd7aacaddcac3971e33cf52d7e610c06696cb347f (patch)
tree2f34e6b48f5cc1224bdefd721bba108c43aad34b
parentaea1f7964ae6cba5eb419a958956deb9016b3341 (diff)
Driver Core: Add platform device arch data V3
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>
-rw-r--r--arch/arm/include/asm/device.h3
-rw-r--r--arch/ia64/include/asm/device.h3
-rw-r--r--arch/microblaze/include/asm/device.h3
-rw-r--r--arch/powerpc/include/asm/device.h3
-rw-r--r--arch/sparc/include/asm/device.h3
-rw-r--r--arch/x86/include/asm/device.h3
-rw-r--r--include/asm-generic/device.h3
-rw-r--r--include/linux/platform_device.h3
8 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/include/asm/device.h b/arch/arm/include/asm/device.h
index c61642b4060..9f390ce335c 100644
--- a/arch/arm/include/asm/device.h
+++ b/arch/arm/include/asm/device.h
@@ -12,4 +12,7 @@ struct dev_archdata {
#endif
};
+struct pdev_archdata {
+};
+
#endif
diff --git a/arch/ia64/include/asm/device.h b/arch/ia64/include/asm/device.h
index 41ab85d66f3..d66d446b127 100644
--- a/arch/ia64/include/asm/device.h
+++ b/arch/ia64/include/asm/device.h
@@ -15,4 +15,7 @@ struct dev_archdata {
#endif
};
+struct pdev_archdata {
+};
+
#endif /* _ASM_IA64_DEVICE_H */
diff --git a/arch/microblaze/include/asm/device.h b/arch/microblaze/include/asm/device.h
index c042830793e..30286db27c1 100644
--- a/arch/microblaze/include/asm/device.h
+++ b/arch/microblaze/include/asm/device.h
@@ -16,6 +16,9 @@ struct dev_archdata {
struct device_node *of_node;
};
+struct pdev_archdata {
+};
+
#endif /* _ASM_MICROBLAZE_DEVICE_H */
diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h
index 7d2277cef09..e3e06e0f7fc 100644
--- a/arch/powerpc/include/asm/device.h
+++ b/arch/powerpc/include/asm/device.h
@@ -30,4 +30,7 @@ dev_archdata_get_node(const struct dev_archdata *ad)
return ad->of_node;
}
+struct pdev_archdata {
+};
+
#endif /* _ASM_POWERPC_DEVICE_H */
diff --git a/arch/sparc/include/asm/device.h b/arch/sparc/include/asm/device.h
index 3702e087df2..f3b85b6b0b7 100644
--- a/arch/sparc/include/asm/device.h
+++ b/arch/sparc/include/asm/device.h
@@ -32,4 +32,7 @@ dev_archdata_get_node(const struct dev_archdata *ad)
return ad->prom_node;
}
+struct pdev_archdata {
+};
+
#endif /* _ASM_SPARC_DEVICE_H */
diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index 4994a20acbc..cee34e9ca45 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -13,4 +13,7 @@ struct dma_map_ops *dma_ops;
#endif
};
+struct pdev_archdata {
+};
+
#endif /* _ASM_X86_DEVICE_H */
diff --git a/include/asm-generic/device.h b/include/asm-generic/device.h
index c17c9600f22..d7c76bba640 100644
--- a/include/asm-generic/device.h
+++ b/include/asm-generic/device.h
@@ -9,4 +9,7 @@
struct dev_archdata {
};
+struct pdev_archdata {
+};
+
#endif /* _ASM_GENERIC_DEVICE_H */
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 8dc5123b630..672a6984973 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -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)