| From 6b63376722d9e1b915a2948e9b30f4ba2712e3f5 Mon Sep 17 00:00:00 2001 |
| From: Amelie Delaunay <amelie.delaunay@foss.st.com> |
| Date: Fri, 16 Jul 2021 14:07:18 +0200 |
| Subject: usb: typec: stusb160x: Don't block probing of consumer of "connector" nodes |
| |
| From: Amelie Delaunay <amelie.delaunay@foss.st.com> |
| |
| commit 6b63376722d9e1b915a2948e9b30f4ba2712e3f5 upstream. |
| |
| 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> |
| --- |
| drivers/usb/typec/stusb160x.c | 9 +++++++++ |
| 1 file changed, 9 insertions(+) |
| |
| --- a/drivers/usb/typec/stusb160x.c |
| +++ b/drivers/usb/typec/stusb160x.c |
| @@ -686,6 +686,15 @@ static int stusb160x_probe(struct i2c_cl |
| 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. |
