Re: [PATCH v4 24/27] drm/panel: panel-simple: Cache the EDID as long as we retain power

2021-04-23 Thread Doug Anderson
Hi, On Fri, Apr 23, 2021 at 9:12 AM Bjorn Andersson wrote: > > On Fri 16 Apr 17:39 CDT 2021, Douglas Anderson wrote: > > > It doesn't make sense to go out to the bus and read the EDID over and > > over again. Let's cache it and throw away the cache when we turn power > > off from the panel. Autos

Re: [PATCH v4 24/27] drm/panel: panel-simple: Cache the EDID as long as we retain power

2021-04-23 Thread Bjorn Andersson
On Fri 16 Apr 17:39 CDT 2021, Douglas Anderson wrote: > It doesn't make sense to go out to the bus and read the EDID over and > over again. Let's cache it and throw away the cache when we turn power > off from the panel. Autosuspend means that even if there are several > calls to read the EDID bef

[PATCH v4 24/27] drm/panel: panel-simple: Cache the EDID as long as we retain power

2021-04-16 Thread Douglas Anderson
It doesn't make sense to go out to the bus and read the EDID over and over again. Let's cache it and throw away the cache when we turn power off from the panel. Autosuspend means that even if there are several calls to read the EDID before we officially turn the power on then we should get good use