Tegra DRM device tree bindings

Thierry Reding thierry.reding at avionic-design.de
Wed Jun 27 05:31:45 EST 2012


On Tue, Jun 26, 2012 at 11:43:38AM -0600, Stephen Warren wrote:
> On 06/26/2012 07:41 AM, Thierry Reding wrote:
> > On Tue, Jun 26, 2012 at 04:01:05PM +0300, Terje Bergström wrote:
> >> On 26.06.2012 13:55, Thierry Reding wrote:
> ...
> >>> status = "disabled";
> >>> 
> >>> gart = <&gart>;
> >>> 
> >>> /* video-encoding/decoding */ mpe { reg = <0x54040000
> >>> 0x00040000>; interrupts = <0 68 0x04>; status = "disabled"; };
> >> 
> >> 
> >> The client device interrupts are not very interesting, so they
> >> could be left out, too. Display controller related are probably
> >> an exception to this.
> > 
> > If the interrupts aren't used at all we should drop them.
> 
> I disagree here; "used" is most likely something specific to a
> particular OS's drivers. The HW always has the interrupts, and hence
> they should be described in DT.

Okay, I see. Does the same apply to the COP interrupts of the host1x
node in your opinion? I don't know if it makes sense to describe
something that's not reachable from the CPU. Yet it is defined in the
GIC.

Thierry
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