[U-Boot] [PATCH v5 4/9] tegra: fdt: i2c: Add extra I2C bindings for U-Boot

[Simon Glass]

Hi Stephen,

On Wed, Mar 7, 2012 at 12:39 PM, Stephen Warren <swarren at wwwdotorg.org> wrote:
> On 03/06/2012 10:00 PM, Simon Glass wrote:
>> Add U-Boot's peripheral clock information to the Tegra20 device tree file.
>>
>> Signed-off-by: Simon Glass <sjg at chromium.org>
> ...
>> diff --git a/doc/device-tree-bindings/i2c/tegra20-i2c.txt b/doc/device-tree-bindings/i2c/tegra20-i2c.txt
> ...
>> +Required properties:
>> + - clocks : Two clocks must be given, each as a phandle to the Tegra's
>> +            CAR node and the clock number as a parameter:
>
> I'd rather rely on the common clock binding documentation for the format
> of the clock specifiers than duplicate the information here. True, that
> document isn't in U-Boot (nor is it final). I.e.:
>
>    Two clocks must be specified:
>
> But I think this is fine for now (I might care more if submitting a doc
> file for the kernel tree), so
>
> Acked-by: Stephen Warren <swarren at wwwdotorg.org>

Thanks. Good to get this in.

Regards,
Simon
>
>> +     - the I2C clock to use for the peripheral
>> +     - the pll_p_out3 clock, which can be used for fast operation. This
>> +          does not change and is the same for all I2C nodes.
>> +
>> +Example:
>> +(TODO: merge with existing example):
>> +
>> +     i2c at 7000c400 {
>> +             #address-cells = <1>;
>> +             #size-cells = <0>;
>> +             compatible = "nvidia,tegra20-i2c";
>> +             reg = <0x7000C400 0x100>;
>> +             interrupts = < 116 >;
>> +             /* PERIPH_ID_I2C2, PLL_P_OUT3 */
>> +             clocks = <&tegra_car 54>, <&tegra_car 124>;
>> +     };