From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Mon, 27 Apr 2015 15:47:31 +0800 From: =?utf-8?B?5p2O5LqR5b+X?= Subject: Re: Re: [PATCH v1 2/2] ARM: dts: rockchip: set dr_mode property for rk3288-firefly board References: <1430041299-24874-1-git-send-email-lyz@rock-chips.com>, <1430041299-24874-2-git-send-email-lyz@rock-chips.com>, <8829961.lJFBlrS3Ia@diego> Mime-Version: 1.0 Message-ID: <2015042715463079728985@rock-chips.com> Content-Type: multipart/alternative; boundary="----=_001_NextPart453265640682_=----" To: =?utf-8?B?SGVpa29TdMO8Ym5lcg==?= Cc: =?utf-8?B?6JSh5p6r?= , =?utf-8?B?6buE5p6X?= , =?utf-8?B?5p2o5Yev?= , gauravsh , alberto , =?utf-8?B?5ZC06Imv5bOw?= , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Russell King , linux-arm-kernel , linux-rockchip , devicetree , linux-kernel List-ID: This is a multi-part message in MIME format. ------=_001_NextPart453265640682_=---- Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 SGkgSGVpa286DQoNCiAgICBJIHRob3VnaHQgdGhlIEZpcmVmbHkgYm9hcmQgaGFzIGEgVVNCIHR5 cGUgQSByZWNlcHRhY2xlIGNvbm5lY3RvciBmb3Igb3RnIGxpa2UgY2hyb21lYm9vaywgYnV0IGFj dHVhbGx5IEZpcmVmbHkgYm9hcmQgdXNlIGEgbWljcm8tQiBjb25uZWN0b3IuDQpJZiBzb21lIGJv YXJkIHVzZSBhIHR5cGUgQSBjb25uZWN0b3IgZm9yIG90ZyBwb3J0IHRoZW4gaXQgc2hvdWxkIGFk ZCBhIGRyX21vZGUgPSAiaG9zdCIgcHJvcGVydHkgYmVhY3VzZSB0eXBlIEEgY29ubmVjdG9yIG5v dCBjb25uZWN0IHVzYi1pZA0KcGluIHRvIHNvYy4NCiAgICBTbyBwbGVhc2UgaWdub3JlIHRoaXMg cGF0Y2gsIGl0J3MgbXkgbWlzdGFrZSAuDQoNCg0KDQrmnY7kupHlv5cNCiANCkZyb206IEhlaWtv U3TDvGJuZXINCkRhdGU6IDIwMTUtMDQtMjYgMTg6MTYNClRvOiBZdW56aGkgTGkNCkNDOiBjZjsg aGw7IHlrOyBnYXVyYXZzaDsgYWxiZXJ0bzsgd3VsZjsgUm9iIEhlcnJpbmc7IFBhd2VsIE1vbGw7 IE1hcmsgUnV0bGFuZDsgSWFuIENhbXBiZWxsOyBLdW1hciBHYWxhOyBSdXNzZWxsIEtpbmc7IGxp bnV4LWFybS1rZXJuZWw7IGxpbnV4LXJvY2tjaGlwOyBkZXZpY2V0cmVlOyBsaW51eC1rZXJuZWwN ClN1YmplY3Q6IFJlOiBbUEFUQ0ggdjEgMi8yXSBBUk06IGR0czogcm9ja2NoaXA6IHNldCBkcl9t b2RlIHByb3BlcnR5IGZvciByazMyODgtZmlyZWZseSBib2FyZA0KSGksDQogDQpBbSBTb25udGFn LCAyNi4gQXByaWwgMjAxNSwgMTc6NDE6Mzkgc2NocmllYiBZdW56aGkgTGk6DQo+IHJrMzI4OC1m aXJlZmx5IGJvYXJkIHVzZSB0aGUgZHdjMiB1c2Igb3RnIGNvbnRyb2xsZXIgYXMgYSBob3N0DQo+ IGNvbnRyb2xsZXIgYW5kIHRoZSBkZXZpY2UgbW9kZSBub3QgdXNlZCwgc28gdGhlIGRyX21vZGUg c2hvdWxkIGJlDQo+ICJob3N0IiB0aGVuIHRoZSBkd2MyIHVzYiBvdGcgY29udHJvbGxlciB3aWxs IHdvcmsgYXQgaG9zdCBvbmx5DQo+IG1vZGUNCj4gDQo+IFNpZ25lZC1vZmYtYnk6IFl1bnpoaSBM aSA8bHl6QHJvY2stY2hpcHMuY29tPg0KIA0KTm90IHN1cmUgSSB1bmRlcnN0YW5kLiBJcyB0aGlz IHNvbWUgc29ydCBvZiBoYXJkd2FyZSBsaW1pdGF0aW9uPyBCZWNhdXNlIHdoZW4gDQpmb3IgZXhh bXBsZSBmbGFzaGluZyBhIGtlcm5lbCB2aWEgdXBncmFkZV90b29sIGl0IGlzIHdvcmtpbmcganVz dCBmaW5lIGFzIA0KZ2FkZ2V0Lg0KIA0KSWYgaXQgaXMgYSBzb2Z0d2FyZSBjaG9pY2UsIHRoaXMg c2hvdWxkIG5vdCBiZSBtYWRlIGluIHRoZSBkZXZpY2V0cmVlLCBhcyB0aGUgDQpkdCBkZXNjcmli ZXMgdGhlIGhhcmR3YXJlIGFsb25lLg0KIA0KIA0KSGVpa28NCiANCiANCj4gDQo+IC0tLQ0KPiAN Cj4gIGFyY2gvYXJtL2Jvb3QvZHRzL3JrMzI4OC1maXJlZmx5LmR0c2kgfCAxICsNCj4gIDEgZmls ZSBjaGFuZ2VkLCAxIGluc2VydGlvbigrKQ0KPiANCj4gZGlmZiAtLWdpdCBhL2FyY2gvYXJtL2Jv b3QvZHRzL3JrMzI4OC1maXJlZmx5LmR0c2kNCj4gYi9hcmNoL2FybS9ib290L2R0cy9yazMyODgt ZmlyZWZseS5kdHNpIGluZGV4IGU2Zjg3M2EuLmE4NjE3NzYgMTAwNjQ0DQo+IC0tLSBhL2FyY2gv YXJtL2Jvb3QvZHRzL3JrMzI4OC1maXJlZmx5LmR0c2kNCj4gKysrIGIvYXJjaC9hcm0vYm9vdC9k dHMvcmszMjg4LWZpcmVmbHkuZHRzaQ0KPiBAQCAtNDY2LDYgKzQ2Niw3IEBADQo+ICB9Ow0KPiAN Cj4gICZ1c2Jfb3RnIHsNCj4gKyBkcl9tb2RyID0gImhvc3QiOw0KPiAgc3RhdHVzID0gIm9rYXki Ow0KPiAgfTsNCiANCiANCiANCg== ------=_001_NextPart453265640682_=---- Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable =0A
Hi Heiko:
  &n= bsp; I thought the Firefly board has a USB type A receptacle connector for otg like chromebook, but ac= tually Firefly board use a micro-B connector.
If some board use a type A connector for otg port then it shoul= d add a dr_mode =3D "host" property beac= use type A connector not connect usb-id
= pin to soc.
    So please ignore this patc= h, it's my mistake .

=0A
=E6=9D=8E=E4=BA=91=E5=BF=97
=0A
=  
Date: 201= 5-04-26 18:16
Subject: Re: [PATCH v1 2/2] ARM: dts: rockchip= : set dr_mode property for rk3288-firefly board
Hi,
=0A
 
=0A
Am Sonntag, 26. April 2015, 17:41:39= schrieb Yunzhi Li:
=0A
> rk3288-firefly board use the dwc2 us= b otg controller as a host
=0A
> controller and the device mod= e not used, so the dr_mode should be
=0A
> "host" then the dwc= 2 usb otg controller will work at host only
=0A
> mode
= =0A
>
=0A
> Signed-off-by: Yunzhi Li <lyz@rock-chip= s.com>
=0A
 
=0A
Not sure I understand. Is this = some sort of hardware limitation? Because when
=0A
for example f= lashing a kernel via upgrade_tool it is working just fine as
=0Agadget.
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If it is a software choice, this= should not be made in the devicetree, as the
=0A
dt describes t= he hardware alone.
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=0A
He= iko
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>
=0A> ---=0A
>
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>  arch/arm/boot/dts/rk= 3288-firefly.dtsi | 1 +
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>  1 file changed, 1 insertio= n(+)
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>
=0A
> diff --git a/arch/arm/boot/dts/r= k3288-firefly.dtsi
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> b/arch/arm/boot/dts/rk3288-firefly.dt= si index e6f873a..a861776 100644
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> --- a/arch/arm/boot/dts= /rk3288-firefly.dtsi
=0A
> +++ b/arch/arm/boot/dts/rk3288-fire= fly.dtsi
=0A
> @@ -466,6 +466,7 @@
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>  };<= /div>=0A
>
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>  &usb_otg {
=0A
>= ; + dr_modr =3D "host";
=0A
>  status =3D "okay";
= =0A
>  };
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