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| author | Simon Glass <sjg@chromium.org> | 2015-01-25 08:27:10 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-01-29 17:09:56 -0700 |
| commit | 83c7e434c9dd3ca81f8b763e23c1881b973bcf2f (patch) | |
| tree | c0fc096ee51bbcd66ccabd77826e236f49329845 /include/dm | |
| parent | 1603bf3cc189da65362b83b85831e094a2fe8516 (diff) | |
| download | u-boot-imx-83c7e434c9dd3ca81f8b763e23c1881b973bcf2f.zip u-boot-imx-83c7e434c9dd3ca81f8b763e23c1881b973bcf2f.tar.gz u-boot-imx-83c7e434c9dd3ca81f8b763e23c1881b973bcf2f.tar.bz2 | |
dm: core: Allow uclass to set up a device's child before it is probed
Some buses need to set up their devices before they can be used. This setup
may well be common to all buses in a particular uclass. Support a common
pre-probe method for the uclass, called before any bus devices are probed.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Diffstat (limited to 'include/dm')
| -rw-r--r-- | include/dm/test.h | 3 | ||||
| -rw-r--r-- | include/dm/uclass-internal.h | 11 | ||||
| -rw-r--r-- | include/dm/uclass.h | 1 |
3 files changed, 15 insertions, 0 deletions
diff --git a/include/dm/test.h b/include/dm/test.h index f08c05d..707c69e 100644 --- a/include/dm/test.h +++ b/include/dm/test.h @@ -67,6 +67,8 @@ enum { struct dm_test_priv { int ping_total; int op_count[DM_TEST_OP_COUNT]; + int uclass_flag; + int uclass_total; }; /** @@ -88,6 +90,7 @@ struct dm_test_uclass_priv { * * @sum: Test value used to check parent data works correctly * @flag: Used to track calling of parent operations + * @uclass_flag: Used to track calling of parent operations by uclass */ struct dm_test_parent_data { int sum; diff --git a/include/dm/uclass-internal.h b/include/dm/uclass-internal.h index f718f37..f2f254a 100644 --- a/include/dm/uclass-internal.h +++ b/include/dm/uclass-internal.h @@ -44,6 +44,17 @@ int uclass_bind_device(struct udevice *dev); int uclass_unbind_device(struct udevice *dev); /** + * uclass_pre_probe_child() - Deal with a child that is about to be probed + * + * Perform any pre-processing that is needed by the uclass before it can be + * probed. + * + * @dev: Pointer to the device + * #return 0 on success, -ve on error + */ +int uclass_pre_probe_child(struct udevice *dev); + +/** * uclass_post_probe_device() - Deal with a device that has just been probed * * Perform any post-processing of a probed device that is needed by the diff --git a/include/dm/uclass.h b/include/dm/uclass.h index 5c5b8f4..d6c40c6 100644 --- a/include/dm/uclass.h +++ b/include/dm/uclass.h @@ -83,6 +83,7 @@ struct uclass_driver { int (*post_probe)(struct udevice *dev); int (*pre_remove)(struct udevice *dev); int (*child_post_bind)(struct udevice *dev); + int (*child_pre_probe)(struct udevice *dev); int (*init)(struct uclass *class); int (*destroy)(struct uclass *class); int priv_auto_alloc_size; |