This is a short series to link a registered USB PD object to its associated partner device. This is helpful for userspace services (the ChromeOS Type-C daemon, for example), to identify which Type-C peripheral a PD object belongs to, when a uevent for the PD object arrives. The first patch adds a wrapper to the Type-C class code to register a PD object with a Type-C partner as its parent. The second patch uses that wrapper to register the Type-C partner USB PD object in the port driver code. There was an earlier patch[1] to solve this issue, but it's been jettisoned (on advice from GregKH) in favor of the current approach. [1] https://lore.kernel.org/linux-usb/Y3vNZEuNI3CWzZ0L@xxxxxxxxxxxx/T/#m7521020f64d878313d7dd79903ec0e9421aa8737 Series submission suggestions (if the approach is OK): - Patch 1 goes throug the USB tree and Patch 2 goes in the next release cycle through the chrome-platform tree. - Patch 1 and 2 both go through the USB tree. v1: https://lore.kernel.org/linux-usb/20221121201337.2772216-1-pmalani@xxxxxxxxxxxx/ Changes since v1: - Drop Patch 1 from v1, and instead introduce a new Patch 1 which uses the wrapper function suggested by Heikki Krogerus. - Update Patch 2 to use the new wrapper. Prashant Malani (2): usb: typec: Add partner PD object wrapper platform/chrome: cros_ec_typec: Set parent of partner PD object drivers/platform/chrome/cros_ec_typec.c | 2 +- drivers/usb/typec/class.c | 19 +++++++++++++++++++ include/linux/usb/typec.h | 4 ++++ 3 files changed, 24 insertions(+), 1 deletion(-) -- 2.38.1.584.g0f3c55d4c2-goog
