linux.git/drivers/usb/typec/retimer.c, branch v6.1 Linux kernel source tree usb: typec: Replace custom implementation of device_match_fwnode() 2022-09-30T11:55:13+00:00 Andy Shevchenko andriy.shevchenko@linux.intel.com 2022-09-27T17:19:24+00:00 c9180362a920b99f2aef7d55b89ae94b8138474e Replace custom implementation of the device_match_fwnode(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20220927171924.61908-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Replace custom implementation of the device_match_fwnode().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20220927171924.61908-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb: typec: retimer: Add missing id check in match callback 2022-07-27T12:37:26+00:00 Nícolas F. R. A. Prado nfraprado@collabora.com 2022-07-25T20:31:29+00:00 0c34043897736a3fac259564a6323a1f045100bb The fwnode_connection_find_match() function handles two cases: named references and graph endpoints. In the second case, the match function passed in is called with the id to check for the match. However, the match function for the recently added type-c retimer class assumes the connection has already been matched (which is only true for the first case). The result is that with that change, all type-c nodes with graph endpoints defer probe indefinitely, independently of having a retimer connection or not. Add the missing check, like is done by the type-c mux and usb role switch code, to fix the issue. Fixes: ddaf8d96f93b ("usb: typec: Add support for retimers") Reviewed-by: Prashant Malani <pmalani@chromium.org> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Link: https://lore.kernel.org/r/20220725203129.1973260-1-nfraprado@collabora.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The fwnode_connection_find_match() function handles two cases: named
references and graph endpoints. In the second case, the match function
passed in is called with the id to check for the match. However, the
match function for the recently added type-c retimer class assumes the
connection has already been matched (which is only true for the first
case).

The result is that with that change, all type-c nodes with graph
endpoints defer probe indefinitely, independently of having a retimer
connection or not.

Add the missing check, like is done by the type-c mux and usb role
switch code, to fix the issue.

Fixes: ddaf8d96f93b ("usb: typec: Add support for retimers")
Reviewed-by: Prashant Malani <pmalani@chromium.org>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20220725203129.1973260-1-nfraprado@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb: typec: Add support for retimers 2022-07-14T14:24:05+00:00 Prashant Malani pmalani@chromium.org 2022-07-11T07:22:55+00:00 ddaf8d96f93bccb3f2b1f4f156c098b272440004 Introduce a retimer device class and associated functions that register and use retimer "switch" devices. These operate in a manner similar to the "mode-switch" and help configure retimers that exist between the Type-C connector and host controller(s). Type C ports can be linked to retimers using firmware node device references (again, in a manner similar to "mode-switch"). There are no new sysfs files being created; there is the new retimer class directory, but there are no class-specific files being created there. Signed-off-by: Prashant Malani <pmalani@chromium.org> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20220711072333.2064341-2-pmalani@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Introduce a retimer device class and associated functions that register
and use retimer "switch" devices. These operate in a manner similar to
the "mode-switch" and help configure retimers that exist between the
Type-C connector and host controller(s).

Type C ports can be linked to retimers using firmware node device
references (again, in a manner similar to "mode-switch").

There are no new sysfs files being created; there is the new retimer
class directory, but there are no class-specific files being created
there.

Signed-off-by: Prashant Malani <pmalani@chromium.org>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20220711072333.2064341-2-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>