SM8750: bugfix: DisplayPort alt-mode over USB-C - #3072
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The Type-C SuperSpeed lanes on the AYN CQ8725S pass through an NB7VPQ904M redriver at i2c5 0x1c that the common dtsi never described, so it stayed in reset and never routed the SS/DP lanes; external DisplayPort never came up. Add the redriver as a Type-C mux/retimer and route the SS path connector -> redriver -> qmpphy.
andrebraga
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Summary
Type-C SuperSpeed lanes on the AYN CQ8725S pass through an NB7VPQ904M redriver at i2c5 0x1c that the common dtsi never described, so it stayed in reset and never routed the SS/DP lanes; external DisplayPort never came up. Add the redriver as a Type-C mux/retimer and route the SS path connector -> redriver -> qmpphy.
Complementary and orthogonal to #3068: that fixed the SBU-mux probe on i2c3; this wires the SS-lane redriver on i2c5.
Testing
Native USB-C DP Alt mide video works, tested on native USB-C HP Omen monitor.
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