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| author | Kumar Gala <galak@kernel.crashing.org> | 2011-06-10 01:52:57 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-07-08 00:21:35 -0500 |
| commit | a77ce8167cc1d0370fcb1d79b367d62e050cb2b0 (patch) | |
| tree | dcc1ad81d57546e066edbaddb9f6ebbd70e1c6a5 /drivers/base/platform.c | |
| parent | 3160b09796129abc9523ea3cd1633b0faba64a02 (diff) | |
| download | linux-a77ce8167cc1d0370fcb1d79b367d62e050cb2b0.tar.bz2 | |
driver core: Add ability for arch code to setup pdev_archdata
On some architectures we need to setup pdev_archdata before we add the
device. Waiting til a bus_notifier is too late since we might need the
pdev_archdata in the bus notifier. One example is setting up of dma_mask
pointers such that it can be used in a bus_notifier.
We add weak noop version of arch_setup_pdev_archdata() and allow the arch
code to override with access the full definitions of struct device,
struct platform_device, and struct pdev_archdata.
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'drivers/base/platform.c')
| -rw-r--r-- | drivers/base/platform.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 6040717b62bb..0cad9c7f6bb5 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -32,6 +32,25 @@ struct device platform_bus = { EXPORT_SYMBOL_GPL(platform_bus); /** + * arch_setup_pdev_archdata - Allow manipulation of archdata before its used + * @dev: platform device + * + * This is called before platform_device_add() such that any pdev_archdata may + * be setup before the platform_notifier is called. So if a user needs to + * manipulate any relevant information in the pdev_archdata they can do: + * + * platform_devic_alloc() + * ... manipulate ... + * platform_device_add() + * + * And if they don't care they can just call platform_device_register() and + * everything will just work out. + */ +void __weak arch_setup_pdev_archdata(struct platform_device *pdev) +{ +} + +/** * platform_get_resource - get a resource for a device * @dev: platform device * @type: resource type @@ -173,6 +192,7 @@ struct platform_device *platform_device_alloc(const char *name, int id) pa->pdev.id = id; device_initialize(&pa->pdev.dev); pa->pdev.dev.release = platform_device_release; + arch_setup_pdev_archdata(&pa->pdev); } return pa ? &pa->pdev : NULL; @@ -334,6 +354,7 @@ EXPORT_SYMBOL_GPL(platform_device_del); int platform_device_register(struct platform_device *pdev) { device_initialize(&pdev->dev); + arch_setup_pdev_archdata(pdev); return platform_device_add(pdev); } EXPORT_SYMBOL_GPL(platform_device_register); |