[U-Boot] [PATCH v2 3/7] tegra: fdt: Add extra I2C bindings for U-Boot

[Simon Glass]

Hi Stephen,

On Mon, Jan 23, 2012 at 10:25 AM, Stephen Warren <swarren at nvidia.com> wrote:
> On 01/22/2012 10:41 AM, Simon Glass wrote:
>> Hi Stephen,
>>
>> On Thu, Jan 19, 2012 at 12:51 PM, Stephen Warren <swarren at nvidia.com> wrote:
>>> On 01/12/2012 12:00 PM, Simon Glass wrote:
>>>> Add U-Boot's peripheral clock information to the Tegra20 device tree file.
>>>
>>>> diff --git a/arch/arm/dts/tegra20.dtsi b/arch/arm/dts/tegra20.dtsi
>>>> index ca7b523..963cf27 100644
>>>> --- a/arch/arm/dts/tegra20.dtsi
>>>> +++ b/arch/arm/dts/tegra20.dtsi
>>>> @@ -45,6 +45,8 @@
>>>>               compatible = "nvidia,tegra20-i2c";
>>>>               reg = <0x7000C000 0x100>;
>>>>               interrupts = < 70 >;
>>>> +             clock-frequency = <100000>;
>>>
>>> That's board-specific information. I'd rather not include it in the SoC
>>> .dtsi file even as a default; that way, it forces people to think about
>>> the correct value and put it in their board file, whereas including a
>>> default means people probably won't think about it.
>>
>> OK I moved this into the board file - sadly this means everyone will
>> need to specify it here. Or should we have a default?
>
> I think I'd rather not have the default. That way, people need to think
> about the correct value to use in their board file, rather than having
> it magically work without having validated the value.
>
> If people disagree, we'd need to update the kernel's tegra[23]0.dtsi,
> since they assume ${board}.dts will set this property.

OK that's fine with me.

Regards,
Simon

>
> --
> nvpublic