Hi Stephen, On Fri, Jun 15, 2012 at 1:32 AM, Stephen Warren <swar...@wwwdotorg.org>wrote:
> On 06/13/2012 10:19 AM, Simon Glass wrote: > > Add LCD definitions and also a proposed binding for LCD displays. > > > > The PWFM is in progress on the device-tree-discuss list, so only a > > very basic binding is offered here. > > I believe we have settled on a final representation, it just hasn't been > added into linux-next yet. See: > > > http://gitorious.org/linux-pwm/linux-pwm/commit/d3ce73e5dc86646a6302f2b0f7dd40e8c552fa04 Thanks for the pointer. I suppose this doesn't address clocks as yet, but that's fine. > > > > I am not sure if it is better to have the lcd within the display > > controller as with i2c/spi, or a separate node. From a hardware point > > of view the LCD is certainly connected to the display controller, so > > perhaps this version makes most sense. We could have a stand-alone > > top-level lcd node with a phandle pointing to the display controller, > > but these doesn't seem to be an obvious advantage to that approach. > > Equally, there's been extensive discussion re: how to represent the > NVIDIA display controller in DT. I strongly believe that U-Boot > shouldn't go ahead in isolation with a binding that's completely > unrelated to what's happening in the kernel. Please can you take what > Thierry is working on for the kernel, and/or contribute to that binding > etc., so we don't end up with multiple ways of doing the same thing. > Part of the whole point of DT is to have a single way of representing HW > that multiple OSs (or perhaps bootloaders) cna use. If everyone just > goes and does their own thing, we've lost. > I can see the email here. http://lists.freedesktop.org/archives/dri-devel/2012-April/021223.html I posted this series originally in January. That email is from April, and I don't see activity in the last 2 months. As previously discussed it is not productive to chase a moving target. Thierry, have you settled on a binding yet? If not do you have something sort-of close that I could use in U-Boot? Regards. Simon
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