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: Paul Kocialkowski Message-Id: Date: Fri, 22 Mar 2019 14:34:41 +0100 To: Bin Liu , Maxime Ripard Cc: Greg Kroah-Hartman , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Chen-Yu Tsai List-ID: TGUgdmVuZHJlZGkgMjIgbWFycyAyMDE5IMOgIDA4OjI4IC0wNTAwLCBCaW4gTGl1IGEgw6ljcml0 IDoKPiBBZ2FpbiwgdGhpbmsgYWJvdXQgYW4gZW1iZWRkZWQgcHJvZHVjdCwgaWYgZHJfbW9kZSBp cyAnb3RnJyB3aGljaAo+IGluZGljYXRlcyB0aGUgcGVyaXBoZXJhbCBtb2RlIHdpbGwgYmUgdXNl ZCBhdCBzb21lIHBvaW50LCB3aGVuIGFuZCBob3cKPiB0byBsb2FkIHRoZSBnYWRnZXQgZHJpdmVy IGlmIGl0IGlzIG5vdCBsb2FkZWQgYXV0b21hdGljYWxseSB3aGVuIExpbnV4Cj4gYm9vdHMgdXA/ IHRoZSBlbmQgdXNlciBkb2Vzbid0IGhhdmUgYWNjZXNzIHRvIHRoZSBjb25zb2xlLgoKV2h5IHNo b3VsZCB3ZSB0aGluayBvZiBhbiBlbWJlZGRlZCBwcm9kdWN0IHdoZXJlIHRoZSBlbmQgdXNlciBk b2Vzbid0CmhhdmUgYWNjZXNzIHRvIHRoZSBjb25zb2xlPyBVbmxlc3MgSSdtIG1pc3Rha2VuLCB0 aGUgTGludXgga2VybmVsCmRvZXNuJ3QgdGFyZ2V0IGNvbW1lcmNpYWwgcHJvZHVjdHMgd2hlcmUg dXNlcnMgYXJlIHBvd2VybGVzcyBpbgpwYXJ0aWN1bGFyLCBhbmQgbGVhdmVzIG91dCBhbGwgb3Ro ZXIgdXNlIGNhc2VzICh3aGljaCBtYXkgb3IgbWF5IG5vdCBiZQpjb21tZXJjaWFsKS4KCkkgZG9u J3QgdGhpbmsgdGhpcyBhc3N1bXB0aW9uIG1ha2VzIGFueSBzZW5zZSBpbiBMaW51eCBhcyBhIHBy b2plY3QgKG9yCnRoYXQgaXQncyBzYW5lIGluIGFueSBjb250ZXh0IG9mIHNvZnR3YXJlIGRldmVs b3BtZW50IGZvciB0aGF0IG1hdHRlciwKYnV0IHRoYXQncyBiZXNpZGUgdGhlIHBvaW50KS4KCj4g PiBCZWNhdXNlIG5vIG90aGVyIGNvbnRyb2xsZXIgcmVxdWlyZXMgaXQgYW5kIHRoZXJlZm9yZSBp dCdzIG5vdAo+ID4gc3RhbmRhcmQgYW5kIHZpb2xhdGVzIHRoZSBwcmluY2lwbGUgb2YgbGVhc3Qg c3VycHJpc2U/Cj4gCj4gSSBrbm93IG5vIG90aGVyIGNvbnRyb2xsZXIgZG9lcyB0aGlzLCBidXQg dGhpcyBkb2Vzbid0IG1lYW4gaXQgaXMgbm90Cj4gc3RhbmRhcmQuCj4gCj4gPiBBbmQgZXZlbiB3 aXRob3V0IHRha2luZyB0aGlzIGludG8gYWNjb3VudCwgdGhlcmUncyBhbHNvIHRoZSBmYWN0IHRo YXQKPiA+IHdoaWxlIHRoZSAqaGFyZHdhcmUqIGNhbiBkbyBkdWFsIHJvbGUsIHRoZSBzb2Z0d2Fy ZSBtaWdodCBkZWNpZGUKPiA+IG90aGVyd2lzZS4gSWYgSSBkb24ndCB3YW50IHRvIGhhdmUgc3Vw cG9ydCBmb3IgYW55IGdhZGdldCAoYXQgYWxsKSBpbgo+ID4gdGhlIGVuZCBzeXN0ZW0sIHRoZW4g d2h5IHNob3VsZCBJIGJlIGZvcmNlZCB0byBjb21waWxlIGFuZCBsb2FkCj4gPiBzb21ldGhpbmcg SSBkb24ndCBldmVuIHdhbnQgdG8gdXNlIGluIHRoZSBmaXJzdCBwbGFjZT8KPiAKPiB0aGVuIGRy X21vZGUgc2hvdWxkIGJlIHNldCB0byAnaG9zdCcgaW5zdGVhZCwgeW91IGRvbid0IGhhdmUgdG8g bG9hZCBhCj4gZ2FkZ2V0IGlmIHBlcmlwaGVyYWwgbW9kZSB3aWxsIG5ldmVyIGJlIHVzZWQuCgpJ IGRpc2FncmVlOiBkcl9tb2RlIGRlc2NyaWJlcyB0aGUgaGFyZHdhcmUgY2FwYWJpbGl0aWVzLCBu b3Qgd2hhdCB0aGUKc29mdHdhcmUgZG9lcyB3aXRoIGl0Lgo=