Re: [PATCH v1 4/9] ARM: tegra: Enable UDC on TrimSlice

[Dmitry Osipenko <digetx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
>>
>> Override the compatible string of the first USB controller to enable
>> device mode.
>>
>> Signed-off-by: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
>> ---
>>  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.

-- 
Dmitry
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