On 22/04/16 14:23, Thierry Reding wrote:
> * PGP Signed by an unknown key
>
> On Fri, Apr 22, 2016 at 12:44:21PM +0100, Jon Hunter wrote:
>> Hi Penny,
>>
>> On 22/04/16 11:31, Penny Chiu wrote:
>>> Add clocks, clock-names, and clock-latency into cpu0 node.
>>> These properties will be used by cpufreq driver.
>>>
>>> Signed-off-by: Penny Chiu <pchiu@xxxxxxxxxx>
>>> ---
>>> arch/arm64/boot/dts/nvidia/tegra210.dtsi | 6 ++++++
>>> 1 file changed, 6 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
>>> index 204d9cd..1a85857 100644
>>> --- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
>>> +++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
>>> @@ -782,6 +782,12 @@
>>> device_type = "cpu";
>>> compatible = "arm,cortex-a57";
>>> reg = <0>;
>>> + clocks = <&tegra_car TEGRA210_CLK_CCLK_G>,
>>> + <&tegra_car TEGRA210_CLK_PLL_X>,
>>> + <&tegra_car TEGRA210_CLK_PLL_P_OUT4>,
>>> + <&dfll>;
>>> + clock-names = "cpu_g", "pll_x", "pll_p", "dfll";
>>> + clock-latency = <300000>;
>>> };
>>>
>>> cpu@1 {
>>>
>>
>> Can you include a patch with this series to update the binding
>> documentation for the nvidia,tegra124-cpufreq.txt? I think that although
>> there is no specific nvidia,tegra210-cpufreq compatible string the
>> documentation should state that both tegra124 and tegra210 are supported
>> so it is clear.
>>
>> Also I see the above binding no longer includes the "cpu_lp" for
>> tegra210 which I understand we don't use here. However, the binding
>> documentation should reflect this. Having said that, looking at the
>> driver it appears the "cpu_lp" clock is not even used for tegra124. I
>> wonder if we should drop this from the binding documentation and the
>> tegra124.dtsi altogether?
>>
>> What about the "vdd-cpu-supply" property? Don't we need this?
>
> For some reason that seems to have moved into the clock@70110000 node.
Yes I saw that. I surprised that the cpufreq driver would probe without
this, unless I am missing something ...
Jon
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