Re: [PATCH v2] drm/bridge: Fail an unsatisfiable bus format negotiation with -EINVAL

[Arun Iyengar]

A correction to the commit message: the DW DP example cannot happen on
mainline. No DisplayPort bridge connector has the "color format"
property, so "userspace now hits this routinely" is wrong; I hit it
with a dw-dp change that is not posted.

On mainline, -ENOTSUPP still reaches userspace from a chain with no
common bus format, as in drm_test_bridge_rgb_yuv_no_path(). The code is
unchanged; I can send a v3 with the message corrected.

Arun