[PATCH 2/2] drm/rockchip: dw_hdmi: Handle suspend/resume

[Heiko Stübner]

Am Freitag, 3. Mai 2019, 00:38:08 CEST schrieb Douglas Anderson:
> On Rockchip rk3288-based Chromebooks when you do a suspend/resume
> cycle:
> 
> 1. You lose the ability to detect an HDMI device being plugged in.
> 
> 2. If you're using the i2c bus built in to dw_hdmi then it stops
> working.
> 
> Let's call the core dw-hdmi's suspend/resume functions to restore
> things.
> 
> NOTE: in downstream Chrome OS (based on kernel 3.14) we used the
> "late/early" versions of suspend/resume because we found that the VOP
> was sometimes resuming before dw_hdmi and then calling into us before
> we were fully resumed.  For now I have gone back to the normal
> suspend/resume because I can't reproduce the problems.
> 
> Signed-off-by: Douglas Anderson <dianders at chromium.org>

Reviewed-by: Heiko Stuebner <heiko at sntech.de>