Re: [PATCH 4/4] ARM: tegra: roth: add display DT node

[Mark Brown]

On Tue, Jul 22, 2014 at 01:39:51PM +0900, Alexandre Courbot wrote:

> I also don't think that would do it - for many displays the power-on
> sequence is not as simple as "switch all the regulators on".

> Maybe what we would want is to have panel-simple allow panels to
> provide a "probe" callback so they can request and manage any extra
> resource they need. This would of course imply that custom
> enable/disable and suspend/resume callbacks. Then the driver might not
> be "simple" anymore, but IMHO it would not be that bad.

This is starting to mirror the discussion about MMC/SDIO devices where
the talk was of having a property on the device saying which power up
scheme to use - added Ulf for that.

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