On 05/03/2012 12:28 PM, Stephen Warren wrote:
> On 04/16/2012 09:04 AM, Thierry Reding wrote:
>> This commit adds the device node required to probe NVIDIA Tegra 20 GART
>> hardware from the device tree.
>
>> diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
>
>> + gart: gart@7000f000 {
>> + compatible = "nvidia,tegra20-gart";
>> + reg = < 0x7000f000 0x00000100 /* controller registers */
>> + 0x58000000 0x02000000 >; /* GART aperture */
>> + };
...
> As such, I think this node should be more like:
>
> mc: mc@7000f000 {
> compatible = "nvidia,tegra20-mc";
> reg = <0x7000f000 0x00000100>;
> };
>
> Then, one of following options can be taken:
[to represent the fact that MC and GART are essentially the same HW module]
...
Yet another option is to explicitly use the MFD subsystem for this; I
guess options 1 and 3 that I gave were essentially open-coding MFD anyway.
Offline, Hiroshi mentioned that he had looked at MFD, and ended up
thinking it was a rather heavy-weight solution in this case though.
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