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authorMing Lei <tom.leiming@gmail.com>2009-03-08 23:13:32 +0800
committerGreg Kroah-Hartman <gregkh@suse.de>2009-03-24 16:38:26 -0700
commit006f4571a15fae3a0575f2a0f9e9b63b3d1012f8 (patch)
tree22c2e30f830b0440032c1347b13bf96734a76022 /drivers/base/platform.c
parentsysfs: don't block indefinitely for unmapped files. (diff)
downloadlinux-dev-006f4571a15fae3a0575f2a0f9e9b63b3d1012f8.tar.xz
linux-dev-006f4571a15fae3a0575f2a0f9e9b63b3d1012f8.zip
driver core: move platform_data into platform_device
This patch moves platform_data from struct device into struct platform_device, based on the two ideas: 1. Now all platform_driver is registered by platform_driver_register, which makes probe()/release()/... of platform_driver passed parameter of platform_device *, so platform driver can get platform_data from platform_device; 2. Other kind of devices do not need to use platform_data, we can decrease size of device if moving it to platform_device. Taking into consideration of thousands of files to be fixed and they can't be finished in one night(maybe it will take a long time), so we keep platform_data in device to allow two kind of cases coexist until all platform devices pass its platfrom data from platform_device->platform_data. All patches to do this kind of conversion are welcome. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to '')
-rw-r--r--drivers/base/platform.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index ec993aa6a2ca..c5ac81d22303 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -217,6 +217,7 @@ int platform_device_add_data(struct platform_device *pdev, const void *data,
if (d) {
memcpy(d, data, size);
pdev->dev.platform_data = d;
+ pdev->platform_data = d;
}
return d ? 0 : -ENOMEM;
}
@@ -246,6 +247,8 @@ int platform_device_add(struct platform_device *pdev)
else
dev_set_name(&pdev->dev, pdev->name);
+ pdev->platform_data = pdev->dev.platform_data;
+
for (i = 0; i < pdev->num_resources; i++) {
struct resource *p, *r = &pdev->resource[i];