[PATCH] ARM: tegra: Enable TPM on tegra124 nyan boards

[Stephen Warren]

On 05/14/2015 08:28 AM, Simon Glass wrote:
> Hi Stephen,
>
> On 14 May 2015 at 08:11, Stephen Warren <swarren at wwwdotorg.org> wrote:
>> On 05/14/2015 07:09 AM, Tomeu Vizoso wrote:
>>>
>>> On 13 May 2015 at 16:45, Stephen Warren <swarren at wwwdotorg.org> wrote:
>>>>
>>>> On 05/13/2015 08:13 AM, Simon Glass wrote:
>>>>>
>>>>>
>>>>> Regenerate the pinmux from the latest tegra-pinmux-scripts.
>>>>
>>>>
>>>>
>>>> (Dropping most CCs; DT maintainers and lists generally don't get CC'd on
>>>> simple DT content changes but rather on schema adds/changes and perhaps
>>>> major DT content changes depending on context)
>>>>
>>>>> diff --git a/arch/arm/boot/dts/tegra124-nyan-big.dts
>>>>> b/arch/arm/boot/dts/tegra124-nyan-big.dts
>>>>
>>>>
>>>>
>>>>>                   pinctrl-names = "default";
>>>>>                   pinctrl-0 = <&pinmux_default>;
>>>>>
>>>>> -               pinmux_default: common {
>>>>> +               state_default: pinmux {
>>>>
>>>>
>>>>
>>>> This change will break compilation, since it changes the label name, yet
>>>> the
>>>> old name is still referenced in pinctrl-0 above. Same applies in the
>>>> other
>>>> file too.
>>>>
>>>>> diff --git a/arch/arm/boot/dts/tegra124-nyan-blaze.dts
>>>>> b/arch/arm/boot/dts/tegra124-nyan-blaze.dts
>>>>
>>>>
>>>>
>>>>> @@ -437,18 +437,18 @@
>>>>>                           usb_vbus_en0_pn4 {
>>>>>                                   nvidia,pins = "usb_vbus_en0_pn4";
>>>>>                                   nvidia,function = "usb";
>>>>> -                               nvidia,pull = <TEGRA_PIN_PULL_UP>;
>>>>> +                               nvidia,pull = <TEGRA_PIN_PULL_NONE>;
>>>>>                                   nvidia,tristate = <TEGRA_PIN_DISABLE>;
>>>>>                                   nvidia,enable-input =
>>>>> <TEGRA_PIN_ENABLE>;
>>>>> -                               nvidia,open-drain = <TEGRA_PIN_DISABLE>;
>>>>> +                               nvidia,open-drain = <TEGRA_PIN_ENABLE>;
>>>>>                           };
>>>>>                           usb_vbus_en1_pn5 {
>>>>>                                   nvidia,pins = "usb_vbus_en1_pn5";
>>>>>                                   nvidia,function = "usb";
>>>>> -                               nvidia,pull = <TEGRA_PIN_PULL_UP>;
>>>>> +                               nvidia,pull = <TEGRA_PIN_PULL_NONE>;
>>>>>                                   nvidia,tristate = <TEGRA_PIN_DISABLE>;
>>>>>                                   nvidia,enable-input =
>>>>> <TEGRA_PIN_ENABLE>;
>>>>> -                               nvidia,open-drain = <TEGRA_PIN_DISABLE>;
>>>>> +                               nvidia,open-drain = <TEGRA_PIN_ENABLE>;
>>>>>                           };
>>>>
>>>>
>>>>
>>>> Tomeu, can you comment on those changes? Evidently the pinmux
>>>> configuration
>>>> that's you added to the kernel doesn't exactly match the pinmux
>>>> configuration that you added to tegra-pinmux-scripts.
>>>
>>>
>>> Are you sure? Just checked and what tegra-pinmux-scripts currently
>>> generates matches what is currently in the kernel, for both nyans.
>>
>>
>> My apologies; you're correct.
>>
>> This patch to the kernel DTs includes changes that aren't generated by
>> either current tegra-pinmux-scripts, nor by tegra-pinmux-scripts with
>> Simon's "[pinmux scripts PATCH] Support TPM on nyan boards" applied. Simon,
>> can you double-check you didn't have any local patches to
>> tegra-pinmux-scripts applied when you generated the DT content for this
>> patch?
>
> Yes. Apart from my patch the top commit is 39af.

OK, did you paste the same DT content into both DTs then, instead of 
generating each DT separately?

When I re-generate the DT using commit 39af, I don't get any changes to 
usb_vbus_en*.