Re: [PATCH v4 16/18] platform/chrome: cros_ec_typec: Add support for signaling DP HPD via drm_bridge

[Tzung-Bi Shih]

On Sat, Aug 31, 2024 at 09:06:54PM -0700, Stephen Boyd wrote:
> We can imagine that logically the EC is a device that has some number of
> DisplayPort (DP) connector inputs, some number of USB3 connector inputs,
> and some number of USB type-c connector outputs. If you squint enough it
> looks like a USB type-c dock. Logically there's a crossbar pin
> assignment capability within the EC that can assign USB and DP lanes to
> USB type-c lanes in the connector (i.e. USB type-c pin configurations).
> In reality, the EC is a microcontroller that has some TCPCs and
> redrivers connected to it over something like i2c and DP/USB from the AP
> is wired directly to those ICs, not the EC.
> 
> [...]
> 
> Cc: Prashant Malani <pmalani@xxxxxxxxxxxx>
> Cc: Benson Leung <bleung@xxxxxxxxxxxx>
> Cc: Tzung-Bi Shih <tzungbi@xxxxxxxxxx>
> Cc: <chrome-platform@xxxxxxxxxxxxxxx>
> Cc: Pin-yen Lin <treapking@xxxxxxxxxxxx>
> Signed-off-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>

Reviewed-by: Tzung-Bi Shih <tzungbi@xxxxxxxxxx>