[PATCH 01/04] Driver Core: Add platform device arch data

[Magnus Damm <magnus.damm@gmail.com>]

From: Magnus Damm <damm@igel.co.jp>

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@igel.co.jp>
---

 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
+	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)