Hello Christoph,
On 01/22/2014 04:04 PM, Christoph Fritz wrote:
> DBB056 doesn't use DSI for its display, but omap3 forces this
> erroneously for all its boards:
>
> | OMAP DSS rev 2.0
> | omapdss DPI error: can't get VDDS_DSI regulator
> | omapfb omapfb: failed to connect default display
> | omapfb omapfb: failed to init overlay connections
> | omapfb omapfb: failed to setup omapfb
> | platform omapfb: Driver omapfb requests probe deferral
>
> So this patch just disables it for omap3. Consider this as a hack!
> Is there a proper fix for this issue?
It is also a hack but I solved on the IGEPv2 board by adding a regulator-name =
"vdds_dsi" to the VPLL2 regulator as suggested by Tony.
Look at commit 2f2befd8 ("ARM: dts: omap3-igep0020: name twl4030 VPLL2 regulator
as vdds_dsi")
Having the workaround in the Device Tree is better IMHO since this is a
per-board configuration. That can be later removed once the DSS DT bindings are
added to mainline.
Thanks a lot and best regards,
Javier
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