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dm: Add child_pre_probe() and child_post_remove() methods

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Some devices (particularly bus devices) must track their children, knowing
when a new child is added so that it can be set up for communication on the
bus.

Add a child_pre_probe() method to provide this feature, and a corresponding
child_post_remove() method.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2014-07-23 06:55:21 -06:00
parent e59f458de6
commit a327dee0f4
5 changed files with 160 additions and 2 deletions
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4
include/dm/test.h
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@@ -86,9 +86,11 @@ struct dm_test_uclass_priv {
* struct dm_test_parent_data - parent's information on each child
*
* @sum: Test value used to check parent data works correctly
* @flag: Used to track calling of parent operations
*/
struct dm_test_parent_data {
int sum;
int flag;
};
/*
@@ -109,6 +111,7 @@ extern struct dm_test_state global_test_state;
* @fail_count: Number of tests that failed
* @force_fail_alloc: Force all memory allocs to fail
* @skip_post_probe: Skip uclass post-probe processing
* @removed: Used to keep track of a device that was removed
*/
struct dm_test_state {
struct udevice *root;
@@ -116,6 +119,7 @@ struct dm_test_state {
int fail_count;
int force_fail_alloc;
int skip_post_probe;
struct udevice *removed;
};
/* Test flags for each test */