mbox series

[0/2] usb: typec-mux: broadcast typec state to next mux for ptn36502 & nb7vpq904m retimers

Message ID 20240527-topic-sm8x50-upstream-retimer-broadcast-mode-v1-0-79ec91381aba@linaro.org
Headers show
Series usb: typec-mux: broadcast typec state to next mux for ptn36502 & nb7vpq904m retimers | expand

Message

Neil Armstrong May 27, 2024, 7:45 a.m. UTC 
In the Type-C graph, a retimer is usually in between the USB-C
connector and the USB3/DP combo PHY, and this PHY also requires the
USB-C mode events to properly set-up the SuperSpeed Lanes functions
to setup USB3-only, USB3 + DP Altmode or DP Altmode only on the 4 lanes.

Update the nb7vpq904m & ptn36502 retimers to get an optional type-c mux
on the next endpoint, and broadcast the received mode to it.

This makes it possible to support 4-lanes DP altmode on Qualcomm platforms.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
Neil Armstrong (2):
      usb: typec-mux: ptn36502: broadcast typec state to next mux
      usb: typec-mux: nb7vpq904m: broadcast typec state to next mux

 drivers/usb/typec/mux/nb7vpq904m.c | 29 +++++++++++++++++++++++++++--
 drivers/usb/typec/mux/ptn36502.c   | 33 ++++++++++++++++++++++++++++++---
 2 files changed, 57 insertions(+), 5 deletions(-)
---
base-commit: 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0
change-id: 20240527-topic-sm8x50-upstream-retimer-broadcast-mode-76520768ac3f

Best regards,