leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

usb: typec: stusb160x: Don't block probing of consumer of "connector" nodes

Browse Source 
Similar as with tcpm this patch lets fw_devlink know not to wait on the
fwnode to be populated as a struct device.

Without this patch, USB functionality can be broken on some previously
supported boards.

Fixes: 28ec344bb8 ("usb: typec: tcpm: Don't block probing of consumers of "connector" nodes")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20210716120718.20398-3-amelie.delaunay@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Amelie Delaunay 2021-07-16 14:07:18 +02:00 committed by Greg Kroah-Hartman
parent 86762ad4ab
commit 6b63376722
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/usb/typec/stusb160x.c
View File

@ -685,6 +685,15 @@ static int stusb160x_probe(struct i2c_client *client)
if (!fwnode)
return -ENODEV;
/*
* This fwnode has a "compatible" property, but is never populated as a
* struct device. Instead we simply parse it to read the properties.
* This it breaks fw_devlink=on. To maintain backward compatibility
* with existing DT files, we work around this by deleting any
* fwnode_links to/from this fwnode.
*/
fw_devlink_purge_absent_suppliers(fwnode);
/*
* When both VDD and VSYS power supplies are present, the low power
* supply VSYS is selected when VSYS voltage is above 3.1 V.