-
Notifications
You must be signed in to change notification settings - Fork 134
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
npu2-opencapi: Use presence detection
Presence detection is not part of the opencapi specification. So each platform may choose to implement it the way it wants. All current platforms implement it through an i2c device where we can query a pin to know if a device is connected or not. ZZ and Zaius have a similar design and even use the same i2c information and pin numbers. However, presence detection on older ZZ planar (older than v4) doesn't work, so we don't activate it for now, until our lab systems are upgraded and it's better tested. Presence detection on witherspoon is still being worked on. It's shaping up to be quite different, so we may have to revisit the topic in a later patch. Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
- Loading branch information
1 parent
67bdd16
commit b5c863a
Showing
5 changed files
with
127 additions
and
25 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters