usb: typec: Add class for plug alt mode device

Add the Type C class for plug alternate mode devices which are being
registered by the Type C connector class. This ensures that udev events
get generated when the plug alt modes are registered.

Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Link: https://lore.kernel.org/r/20201210211653.879044-1-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
index 4f6e58dfb81d501a797408be68d87a61ff4e5fba..ebfd3113a9a8028c4e17bc9d033c66a3b98e4116 100644 (file)
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -600,6 +600,10 @@ typec_register_altmode(struct device *parent,
        if (is_typec_partner(parent))
                alt->adev.dev.bus = &typec_bus;
 
+       /* Plug alt modes need a class to generate udev events. */
+       if (is_typec_plug(parent))
+               alt->adev.dev.class = typec_class;
+
        ret = device_register(&alt->adev.dev);
        if (ret) {
                dev_err(parent, "failed to register alternate mode (%d)\n",