On 06.07.2017 13:24, Dmitry Osipenko wrote:
> On 06.07.2017 04:24, Peter Chen wrote:
>> On Wed, Jul 05, 2017 at 08:19:53PM +0300, Dmitry Osipenko wrote:
>>> From: Thierry Reding <treding@xxxxxxxxxx>
>>>
>>> Override the compatible string of the first USB controller to enable
>>> device mode.
>>>
>>> Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
>>> ---
>>> arch/arm/boot/dts/tegra20-trimslice.dts | 2 ++
>>> 1 file changed, 2 insertions(+)
>>>
>>> diff --git a/arch/arm/boot/dts/tegra20-trimslice.dts b/arch/arm/boot/dts/tegra20-trimslice.dts
>>> index b902ab594afa..96b4f3f9827b 100644
>>> --- a/arch/arm/boot/dts/tegra20-trimslice.dts
>>> +++ b/arch/arm/boot/dts/tegra20-trimslice.dts
>>> @@ -336,7 +336,9 @@
>>> };
>>>
>>> usb@c5000000 {
>>> + compatible = "nvidia,tegra20-udc";
>>> status = "okay";
>>> + dr_mode = "otg";
>>
>> If this board supports peripheral-only, you need to
>> set dr_mode as "peripheral".
>>
>
> It should support OTG, but we aren't going to implement the host mode switch for
> now. Stephen claims that the host mode is working with the tegra-ehci driver, it
> would be nice if anyone could confirm this.
>
Stephen, git blame tells that it is you enabled that port on TrimSlice and
AC100. Could you test them again please?
--
Dmitry
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