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Neil Armstrong 90c478ee37 usb: typec-mux: nb7vpq904m: broadcast typec state to next mux
In the Type-C graph, the nb7vpq904m retimer is 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 retimer to get an optional type-c mux on the next
endpoint, and broadcast the received mode to it.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240606-topic-sm8x50-upstream-retimer-broadcast-mode-v2-4-c6f6eae479c3@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2024-06-20 19:32:13 +02:00
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Linux kernel
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There are several guides for kernel developers and users. These guides can
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