| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.13 175/223] usb: typec: stusb160x: Dont block probing of consumer of "connector" nodes | Date | Mon, 26 Jul 2021 17:39:27 +0200 |
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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.
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