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Subject[PATCH 1/7] usb: typec: mux: Allow muxes to specify mode-switch
Date
Loosen the typec_mux_match() requirements so that searches where an
alt mode is not specified, but the target mux device lists the
"mode-switch" property, return a success.

This is helpful in Type C port drivers which would like to get a pointer
to the mux switch associated with a Type C port, but don't want to
specify a particular alt mode.

Signed-off-by: Prashant Malani <pmalani@chromium.org>
---
drivers/usb/typec/mux.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/mux.c b/drivers/usb/typec/mux.c
index fd55c2c516a5..464330776cd6 100644
--- a/drivers/usb/typec/mux.c
+++ b/drivers/usb/typec/mux.c
@@ -281,9 +281,13 @@ static void *typec_mux_match(struct fwnode_handle *fwnode, const char *id,
if (match)
goto find_mux;

- /* Accessory Mode muxes */
if (!desc) {
- match = fwnode_property_present(fwnode, "accessory");
+ /*
+ * Accessory Mode muxes & muxes which explicitly specify
+ * the required identifier can avoid SVID matching.
+ */
+ match = fwnode_property_present(fwnode, "accessory") ||
+ fwnode_property_present(fwnode, id);
if (match)
goto find_mux;
return NULL;
--
2.36.1.255.ge46751e96f-goog
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