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authorAmelie Delaunay <amelie.delaunay@foss.st.com>2021-07-16 15:07:18 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-07-21 10:16:40 +0300
commit6b63376722d9e1b915a2948e9b30f4ba2712e3f5 (patch)
tree1c33ee27b859fdec0e11f98619640fe1c812e4db /drivers/usb
parent86762ad4abcc549deb7a155c8e5e961b9755bcf0 (diff)
downloadlinux-6b63376722d9e1b915a2948e9b30f4ba2712e3f5.tar.xz
usb: typec: stusb160x: Don't block probing of consumer of "connector" nodes
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: 28ec344bb891 ("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>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/typec/stusb160x.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/typec/stusb160x.c b/drivers/usb/typec/stusb160x.c
index 3d3848e7c2c2..e7745d1c2a5c 100644
--- a/drivers/usb/typec/stusb160x.c
+++ b/drivers/usb/typec/stusb160x.c
@@ -686,6 +686,15 @@ static int stusb160x_probe(struct i2c_client *client)
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.
* Otherwise VDD is selected.