Re: [PATCH v2 4/4] drm_dp_cec: add MST support

On 09/09/2020 09:20, Sam McNally wrote: > With DP v2.0 errata E5, CEC tunneling can be supported through an MST > topology. > > There are some minor differences for CEC tunneling through an MST > topology compared to CEC tunneling to an SST port: > - CEC IRQs are delivered via a sink event notify

[PATCH v2 4/4] drm_dp_cec: add MST support

With DP v2.0 errata E5, CEC tunneling can be supported through an MST topology. There are some minor differences for CEC tunneling through an MST topology compared to CEC tunneling to an SST port: - CEC IRQs are delivered via a sink event notify message - CEC-related DPCD registers are accessed vi