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| author | Jean-Jacques Hiblot <jjhiblot@ti.com> | 2018-12-07 14:50:39 +0100 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2018-12-10 06:05:32 +0100 |
| commit | 3542ff29e4542b8cb0ac3ae861247e9bd487f22f (patch) | |
| tree | c367a4fefd555225d5be719f2cd12e564b4592ad /include/dm | |
| parent | f32a8007ef0fcc1a8f27e0cb444f6861163b03f6 (diff) | |
| download | u-boot-3542ff29e4542b8cb0ac3ae861247e9bd487f22f.tar.gz u-boot-3542ff29e4542b8cb0ac3ae861247e9bd487f22f.tar.xz u-boot-3542ff29e4542b8cb0ac3ae861247e9bd487f22f.zip | |
dm: device: Allow using uclass_find_device_by_seq() without OF_CONTROL
If OF_CONTROL is not enabled and DM_SEQ_ALIAS is enabled, we must
assign an alias (requested sequence number) to devices that belongs to a
class with the DM_UC_FLAG_SEQ_ALIAS flag. Otherwise
uclass_find_device_by_seq() cannot be used to get/probe a device. In
particular i2c_get_chip_for_busnum() cannot be used.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'include/dm')
| -rw-r--r-- | include/dm/uclass-internal.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/dm/uclass-internal.h b/include/dm/uclass-internal.h index 8a4839ee88..6977995246 100644 --- a/include/dm/uclass-internal.h +++ b/include/dm/uclass-internal.h @@ -12,6 +12,19 @@ #include <dm/ofnode.h> /** + * uclass_find_next_free_req_seq() - Get the next free req_seq number + * + * This returns the next free req_seq number. This is useful only if + * OF_CONTROL is not used. The next free req_seq number is simply the + * maximum req_seq of the uclass + 1. + * This allows assiging req_seq number in the binding order. + * + * @id: Id number of the uclass + * @return The next free req_seq number + */ +int uclass_find_next_free_req_seq(enum uclass_id id); + +/** * uclass_get_device_tail() - handle the end of a get_device call * * This handles returning an error or probing a device as needed. |