[PATCHv3 12/23] drm/bridge: tc358767: ensure DP is disabled before LT

[Andrzej Hajda]

On 03.05.2019 14:29, Tomi Valkeinen wrote:
> Link training will sometimes fail if the DP link is enabled when
> tc_main_link_enable() is called. The driver makes sure the DP link is
> disabled when the DP output is disabled, and we never enable the DP
> without first disabling it, so this should never happen.
>
> However, as the HW behavior seems to be somewhat random if DP link has
> erroneously been left enabled, let's add a WARN_ON() for the case and
> set DP0CTL to 0.
>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ti.com>
Reviewed-by: Andrzej Hajda <a.hajda at samsung.com>

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Regards
Andrzej