From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: usb: musb: Support gadget mode when the port is set to dual role From: Bin Liu Message-Id: <20190322134418.GF25852@uda0271908> Date: Fri, 22 Mar 2019 08:44:18 -0500 To: Paul Kocialkowski Cc: Maxime Ripard , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Chen-Yu Tsai List-ID: T24gRnJpLCBNYXIgMjIsIDIwMTkgYXQgMDI6MzQ6NDFQTSArMDEwMCwgUGF1bCBLb2NpYWxrb3dz a2kgd3JvdGU6Cj4gTGUgdmVuZHJlZGkgMjIgbWFycyAyMDE5IMOgIDA4OjI4IC0wNTAwLCBCaW4g TGl1IGEgw6ljcml0IDoKPiA+IEFnYWluLCB0aGluayBhYm91dCBhbiBlbWJlZGRlZCBwcm9kdWN0 LCBpZiBkcl9tb2RlIGlzICdvdGcnIHdoaWNoCj4gPiBpbmRpY2F0ZXMgdGhlIHBlcmlwaGVyYWwg bW9kZSB3aWxsIGJlIHVzZWQgYXQgc29tZSBwb2ludCwgd2hlbiBhbmQgaG93Cj4gPiB0byBsb2Fk IHRoZSBnYWRnZXQgZHJpdmVyIGlmIGl0IGlzIG5vdCBsb2FkZWQgYXV0b21hdGljYWxseSB3aGVu IExpbnV4Cj4gPiBib290cyB1cD8gdGhlIGVuZCB1c2VyIGRvZXNuJ3QgaGF2ZSBhY2Nlc3MgdG8g dGhlIGNvbnNvbGUuCj4gCj4gV2h5IHNob3VsZCB3ZSB0aGluayBvZiBhbiBlbWJlZGRlZCBwcm9k dWN0IHdoZXJlIHRoZSBlbmQgdXNlciBkb2Vzbid0Cj4gaGF2ZSBhY2Nlc3MgdG8gdGhlIGNvbnNv bGU/IFVubGVzcyBJJ20gbWlzdGFrZW4sIHRoZSBMaW51eCBrZXJuZWwKPiBkb2Vzbid0IHRhcmdl dCBjb21tZXJjaWFsIHByb2R1Y3RzIHdoZXJlIHVzZXJzIGFyZSBwb3dlcmxlc3MgaW4KPiBwYXJ0 aWN1bGFyLCBhbmQgbGVhdmVzIG91dCBhbGwgb3RoZXIgdXNlIGNhc2VzICh3aGljaCBtYXkgb3Ig bWF5IG5vdCBiZQo+IGNvbW1lcmNpYWwpLgoKT2theSwgdGhpcyB3aWxsIGxlYWQgdG8gYW4gZW5k bGVzcyBhcmd1bWVudCBhcyB3ZWxsLCBzbyBJIHdpbGwgb25seQpleHBsYWluIHdoeSBJIG1lbnRp b25lZCBlbWJlZGRlZCAtIEFGQUlLIG11c2IgaXMgb25seSB1c2VkIGluIGVtYmVkZGVkCnByb2Nl c3NvcnMuIHRoZW4gd2UgY2FuIHN0b3AgYXJndWluZyBvbiB0aGlzIHBvaW50Li4uCgo+IEkgZG9u J3QgdGhpbmsgdGhpcyBhc3N1bXB0aW9uIG1ha2VzIGFueSBzZW5zZSBpbiBMaW51eCBhcyBhIHBy b2plY3QgKG9yCj4gdGhhdCBpdCdzIHNhbmUgaW4gYW55IGNvbnRleHQgb2Ygc29mdHdhcmUgZGV2 ZWxvcG1lbnQgZm9yIHRoYXQgbWF0dGVyLAo+IGJ1dCB0aGF0J3MgYmVzaWRlIHRoZSBwb2ludCku Cj4gCj4gPiA+IEJlY2F1c2Ugbm8gb3RoZXIgY29udHJvbGxlciByZXF1aXJlcyBpdCBhbmQgdGhl cmVmb3JlIGl0J3Mgbm90Cj4gPiA+IHN0YW5kYXJkIGFuZCB2aW9sYXRlcyB0aGUgcHJpbmNpcGxl IG9mIGxlYXN0IHN1cnByaXNlPwo+ID4gCj4gPiBJIGtub3cgbm8gb3RoZXIgY29udHJvbGxlciBk b2VzIHRoaXMsIGJ1dCB0aGlzIGRvZXNuJ3QgbWVhbiBpdCBpcyBub3QKPiA+IHN0YW5kYXJkLgo+ ID4gCj4gPiA+IEFuZCBldmVuIHdpdGhvdXQgdGFraW5nIHRoaXMgaW50byBhY2NvdW50LCB0aGVy ZSdzIGFsc28gdGhlIGZhY3QgdGhhdAo+ID4gPiB3aGlsZSB0aGUgKmhhcmR3YXJlKiBjYW4gZG8g ZHVhbCByb2xlLCB0aGUgc29mdHdhcmUgbWlnaHQgZGVjaWRlCj4gPiA+IG90aGVyd2lzZS4gSWYg SSBkb24ndCB3YW50IHRvIGhhdmUgc3VwcG9ydCBmb3IgYW55IGdhZGdldCAoYXQgYWxsKSBpbgo+ ID4gPiB0aGUgZW5kIHN5c3RlbSwgdGhlbiB3aHkgc2hvdWxkIEkgYmUgZm9yY2VkIHRvIGNvbXBp bGUgYW5kIGxvYWQKPiA+ID4gc29tZXRoaW5nIEkgZG9uJ3QgZXZlbiB3YW50IHRvIHVzZSBpbiB0 aGUgZmlyc3QgcGxhY2U/Cj4gPiAKPiA+IHRoZW4gZHJfbW9kZSBzaG91bGQgYmUgc2V0IHRvICdo b3N0JyBpbnN0ZWFkLCB5b3UgZG9uJ3QgaGF2ZSB0byBsb2FkIGEKPiA+IGdhZGdldCBpZiBwZXJp cGhlcmFsIG1vZGUgd2lsbCBuZXZlciBiZSB1c2VkLgo+IAo+IEkgZGlzYWdyZWU6IGRyX21vZGUg ZGVzY3JpYmVzIHRoZSBoYXJkd2FyZSBjYXBhYmlsaXRpZXMsIG5vdCB3aGF0IHRoZQo+IHNvZnR3 YXJlIGRvZXMgd2l0aCBpdC4KCkkgaGF2ZSBkaWZmZXJlbnQgdW5kZXJzdGFuZGluZywgZHJfbW9k ZSBkZXNjcmlibGVzIHRoZSB1c2UgY2FzZSwgbm90IHRoZQpoYXJkd2FyZSBjYXBhYmlsaXRpZXMu IEFuZCBzb2Z0d2FyZSBvcGVyYXRlcyB0aGUgaGFyZHdhcmUgYWNjb3JkaW5nbHkKYmFzZWQgb24g ZHJfbW9kZS4KClJlZ2FyZHMsCi1CaW4uCg==