usb: typec: tcpm: Properly interrupt VDM AMS - If VDM AMS is interrupted by Messages other than VDM, the current VDM AMS should be finished before handling the just arrived request. I add intercept code in the beginning of the handler of the three types of requests (control/data/extended) to ensure that the AMS is finished first. usb: typec: tcpm: Respond Not_Supported if no snk_vdo - The snk_vdo is for the responses to incoming VDM Discover Identity. If there is no data in snk_vdo, it means that the port doesn't even support it. According to PD3 Spec "Table 6-64 Response to an incoming VDM", the port should send Not_Supported Message as the response. For PD2 cases, it is defined in PD2 Spec "Table 6-41 Applicability of Structured VDM Commands - Note 3" that the port should "Ignore" the command. Kyle Tso (2): usb: typec: tcpm: Properly interrupt VDM AMS usb: typec: tcpm: Respond Not_Supported if no snk_vdo drivers/usb/typec/tcpm/tcpm.c | 35 ++++++++++++++++++++++++++++++++++- 1 file changed, 34 insertions(+), 1 deletion(-) -- 2.31.1.818.g46aad6cb9e-goog
