From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Pandiyan, Dhinakaran" Subject: Re: [PATCH] drm/i915/dp: Write to SET_POWER dpcd to enable MST hub. Date: Wed, 14 Mar 2018 18:26:50 +0000 Message-ID: <1521053449.4958.77.camel@dk-H97M-D3H> References: <20180314054825.1718-1-dhinakaran.pandiyan@intel.com> <20180314133524.GD5453@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 454CE6E72D for ; Wed, 14 Mar 2018 18:26:52 +0000 (UTC) In-Reply-To: <20180314133524.GD5453@intel.com> Content-Language: en-US Content-ID: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: "ville.syrjala@linux.intel.com" Cc: "Nikula, Jani" , "intel-gfx@lists.freedesktop.org" , "labbott@redhat.com" List-Id: intel-gfx@lists.freedesktop.org DQoNCg0KT24gV2VkLCAyMDE4LTAzLTE0IGF0IDE1OjM1ICswMjAwLCBWaWxsZSBTeXJqw6Rsw6Qg d3JvdGU6DQo+IE9uIFR1ZSwgTWFyIDEzLCAyMDE4IGF0IDEwOjQ4OjI1UE0gLTA3MDAsIERoaW5h a2FyYW4gUGFuZGl5YW4gd3JvdGU6DQo+ID4gSWYgYmlvcyBzZXRzIHVwIGFuIE1TVCBvdXRwdXQg YW5kIGhhcmR3YXJlIHN0YXRlIHJlYWRvdXQgY29kZSBzZWVzIHRoaXMgaXMNCj4gPiBhbiBTU1Qg Y29uZmlndXJhdGlvbiwgd2hlbiBkaXNhYmxpbmcgdGhlIGVuY29kZXIgd2UgZW5kIHVwIGNhbGxp bmcNCj4gPiAtPnBvc3RfZGlzYWJsZV9kcCgpIGhvb2sgaW5zdGVhZCBvZiB0aGUgTVNUIHZlcnNp b24uIENvbnNlcXVlbnRseSwgd2Ugd3JpdGUNCj4gPiB0byB0aGUgRFBfU0VUX1BPV0VSIGRwY2Qg dG8gc2V0IGl0IEQzIHN0YXRlLiBGdXJ0aGVyIGFsb25nIHdoZW4gd2UgdHJ5DQo+ID4gZW5hYmxl IHRoZSBlbmNvZGVyIGluIE1TVCBtb2RlLCBQT1dFUl9VUF9QSFkgdHJhbnNhY3Rpb24gZmFpbHMg dG8gcG93ZXIgdXANCj4gPiB0aGUgTVNUIGh1Yi4gVGhpcyByZXN1bHRzIGluIGNvbnRpbnVvdXMg bGluayB0cmFpbmluZyBmYWlsdXJlcyB3aGljaCBrZWVwDQo+ID4gdGhlIHN5c3RlbSBidXN5IGRl bGF5aW5nIGJvb3QuIFdlIGNvdWxkIGlkZW50aWZ5IGJpb3MgTVNUIGJvb3QgZGlzY3JlcGFuY3kN Cj4gPiBhbmQgaGFuZGxlIGl0IGFjY29yZGluZ2x5IGJ1dCBhIHNpbXBsZSB3YXkgdG8gc29sdmUg dGhpcyBpcyB0byB3cml0ZSB0byB0aGUNCj4gPiBEUF9TRVRfUE9XRVIgZHBjZCBmb3IgTVNUIHRv by4NCj4gPiANCj4gPiBCdWd6aWxsYTogaHR0cHM6Ly9idWdzLmZyZWVkZXNrdG9wLm9yZy9zaG93 X2J1Zy5jZ2k/aWQ9MTA1NDcwDQo+ID4gQ2M6IFZpbGxlIFN5cmrDpGzDpCA8dmlsbGUuc3lyamFs YUBsaW51eC5pbnRlbC5jb20+DQo+ID4gQ2M6IEphbmkgTmlrdWxhIDxqYW5pLm5pa3VsYUBpbnRl bC5jb20+DQoNClJlcG9ydGVkLWJ5OiBMYXVyYSBBYmJvdHQgPGxhYmJvdHRAcmVkaGF0LmNvbT4N CkNjOiBzdGFibGVAdmdlci5rZXJuZWwub3JnDQpGaXhlczogNWVhMjM1NWExMDBhICgiZHJtL2k5 MTUvbXN0OiBVc2UgTVNUIHNpZGViYW5kIG1lc3NhZ2UNCnRyYW5zYWN0aW9ucyBmb3IgZHBtcyBj b250cm9sIikNCg0KPiA+IFNpZ25lZC1vZmYtYnk6IERoaW5ha2FyYW4gUGFuZGl5YW4gPGRoaW5h a2FyYW4ucGFuZGl5YW5AaW50ZWwuY29tPg0KPiA+IC0tLQ0KPiA+ICBkcml2ZXJzL2dwdS9kcm0v aTkxNS9pbnRlbF9kZGkuYyB8IDcgKystLS0tLQ0KPiA+ICAxIGZpbGUgY2hhbmdlZCwgMiBpbnNl cnRpb25zKCspLCA1IGRlbGV0aW9ucygtKQ0KPiA+IA0KPiA+IGRpZmYgLS1naXQgYS9kcml2ZXJz L2dwdS9kcm0vaTkxNS9pbnRlbF9kZGkuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rk aS5jDQo+ID4gaW5kZXggZGJjZjFhMDU4NmY5Li44YzJkNzc4NTYwZjAgMTAwNjQ0DQo+ID4gLS0t IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGRpLmMNCj4gPiArKysgYi9kcml2ZXJzL2dw dS9kcm0vaTkxNS9pbnRlbF9kZGkuYw0KPiA+IEBAIC0yMjA1LDggKzIyMDUsNyBAQCBzdGF0aWMg dm9pZCBpbnRlbF9kZGlfcHJlX2VuYWJsZV9kcChzdHJ1Y3QgaW50ZWxfZW5jb2RlciAqZW5jb2Rl ciwNCj4gPiAgCQlpbnRlbF9wcmVwYXJlX2RwX2RkaV9idWZmZXJzKGVuY29kZXIsIGNydGNfc3Rh dGUpOw0KPiA+ICANCj4gPiAgCWludGVsX2RkaV9pbml0X2RwX2J1Zl9yZWcoZW5jb2Rlcik7DQo+ ID4gLQlpZiAoIWlzX21zdCkNCj4gPiAtCQlpbnRlbF9kcF9zaW5rX2RwbXMoaW50ZWxfZHAsIERS TV9NT0RFX0RQTVNfT04pOw0KPiA+ICsJaW50ZWxfZHBfc2lua19kcG1zKGludGVsX2RwLCBEUk1f TU9ERV9EUE1TX09OKTsNCj4gDQo+IFRoZSBzcGVjIGlzIHBlcmhhcHMgYSBiaXQgdW5jbGVhciBv biB0aGlzLiANCj4gDQo+ICJJZiB0aGUgbWVzc2FnZSBpcyBzZW50IGFzIGEgcGF0aCByZXF1ZXN0 LCBhbGwgRFAgbm9kZXMgZnJvbSB0aGUgc291cmNlDQo+ICBpbW1lZGlhdGUgZG93bnN0cmVhbSBk ZXZpY2UgYW5kIHRoZSB0YXJnZXRlZCBEUCBub2RlIHdpbGwgYmUgcGxhY2VkIGluDQo+ICB0aGUg RDAgcG93ZXIgc3RhdGUuIg0KPiANCj4gRG9lc24ndCBxdWl0ZSB0ZWxsIG1lIHdoZXRoZXIgdGhl IGltbWVkaWF0ZSBkb3duc3RyZWFtIGRldmljZSBpcw0KPiBpbmNsdWRlZCBpbiB0aGF0IGxpc3Qg b2Ygbm9kZXMuDQo+IA0KPiBIb3dldmVyIHRoZSBzcGVjIGdvZXMgb24gdG8gc2F5DQo+ICJFYWNo IG5vZGVzIGltbWVkaWF0ZSB1cHN0cmVhbSBkZXZpY2Ugd2lsbCB1c2UgTmF0aXZlIEFVWCB3cml0 ZXMgdG8gdGhlDQo+ICBTRVRfUE9XRVIgJiBTRVRfRFBfUFdSX1ZPTFRBR0UgcmVnaXN0ZXIgKERQ Q0QgQWRkcmVzcyAwMDYwMGgpIHRvIHNldA0KPiAgdGhlIHBvd2VyIHN0YXRlIG9mIHRoZSBkb3du c3RyZWFtIG5vZGUuIg0KPiANCj4gYW5kIHNpbmNlIHdlIGFyZSB0aGUgaW1tZWRpYXRlIHVwc3Ry ZWFtIGZvciB0aGF0IGRldmljZSBJIGd1ZXNzIGl0IG1ha2VzDQo+IHNlbnNlIHRoYXQgd2Ugc2hv dWxkIHN0aWxsIGRvIHRoZSBEUF9TRVRfUE9XRVIgbWFudWFsbHkuDQo+IA0KPiBCdXQgSSBoYXZl IHRvIHdvbmRlciB3aGF0IHRoZSBvcmlnaW5hbCBpc3N1ZSB3YXMgYmVmb3JlIHdlIHN0YXJ0ZWQg dG8gdXNlDQo+IFBPV0VSX1VQL0RPV05fUEhZLiBJIHN1cHBvc2Ugc29tZWhvdyBzb21lIGZ1cnRo ZXIgZG93bnN0cmVhbSBkZXZpY2UNCj4gd2Fzbid0IGluIEQwIHdoZW4gd2UgbmVlZGVkIGl0Lg0K DQpDb3JyZWN0LCBzaW5rcyBmYXJ0aGVyIGRvd25zdHJlYW0gd2VyZW4ndCBsaWdodGluZyB1cC4N Cg0KPiAgQnV0IHRoYXQgaXMgYSBiaXQgd2VpcmQgYXMgSSBiZWxpZXZlIGFsbA0KPiBkZXZpY2Vz IHNob3VsZCByZWFsbHkgc3RhcnQgdXAgaW4gRDAuDQo+IA0KPiBBbnl3YXlzIGJhc2VkIG9uIG15 IHJlYWRpbmcgb2YgdGhlIHNwZWMgSSBjYW4ganVzdGlmeSB0aGlzIHNvDQo+IFJldmlld2VkLWJ5 OiBWaWxsZSBTeXJqw6Rsw6QgPHZpbGxlLnN5cmphbGFAbGludXguaW50ZWwuY29tPg0KPiANCg0K VGhhbmtzIGZvciB0aGUgcmV2aWV3Lg0KDQo+IEkgcHJlc3VtZSB3ZSB3YW50IGNjOnN0YWJsZSAr IGZpeGVzOiBvbiB0aGlzPw0KDQpZZWFoLCBJIHN1cHBvc2Ugd2Ugc2hvdWxkIHdhaXQgZm9yIHRo ZSByZXBvcnRlciB0byBjb25maXJtIHRoYXQgdGhpcw0KaW5kZWVkIGZpeGVzIHRoZSBidWcuIEl0 IGRvZXMgZml4IHRoZSBwcm9ibGVtIG9uIHRoZSBUaGlua3BhZCBsYXB0b3AgKw0KZG9jayBJIHRl c3RlZCBpdCBvbi4NCg0KDQo+IA0KPiA+ICAJaW50ZWxfZHBfc3RhcnRfbGlua190cmFpbihpbnRl bF9kcCk7DQo+ID4gIAlpZiAocG9ydCAhPSBQT1JUX0EgfHwgSU5URUxfR0VOKGRldl9wcml2KSA+ PSA5KQ0KPiA+ICAJCWludGVsX2RwX3N0b3BfbGlua190cmFpbihpbnRlbF9kcCk7DQo+ID4gQEAg LTIzMDQsMTQgKzIzMDMsMTIgQEAgc3RhdGljIHZvaWQgaW50ZWxfZGRpX3Bvc3RfZGlzYWJsZV9k cChzdHJ1Y3QgaW50ZWxfZW5jb2RlciAqZW5jb2RlciwNCj4gPiAgCXN0cnVjdCBkcm1faTkxNV9w cml2YXRlICpkZXZfcHJpdiA9IHRvX2k5MTUoZW5jb2Rlci0+YmFzZS5kZXYpOw0KPiA+ICAJc3Ry dWN0IGludGVsX2RpZ2l0YWxfcG9ydCAqZGlnX3BvcnQgPSBlbmNfdG9fZGlnX3BvcnQoJmVuY29k ZXItPmJhc2UpOw0KPiA+ICAJc3RydWN0IGludGVsX2RwICppbnRlbF9kcCA9ICZkaWdfcG9ydC0+ ZHA7DQo+ID4gLQlib29sIGlzX21zdCA9IGludGVsX2NydGNfaGFzX3R5cGUob2xkX2NydGNfc3Rh dGUsIElOVEVMX09VVFBVVF9EUF9NU1QpOw0KPiA+ICANCj4gPiAgCS8qDQo+ID4gIAkgKiBQb3dl ciBkb3duIHNpbmsgYmVmb3JlIGRpc2FibGluZyB0aGUgcG9ydCwgb3RoZXJ3aXNlIHdlIGVuZA0K PiA+ICAJICogdXAgZ2V0dGluZyBpbnRlcnJ1cHRzIGZyb20gdGhlIHNpbmsgb24gZGV0ZWN0aW5n IGxpbmsgbG9zcy4NCj4gPiAgCSAqLw0KPiA+IC0JaWYgKCFpc19tc3QpDQo+ID4gLQkJaW50ZWxf ZHBfc2lua19kcG1zKGludGVsX2RwLCBEUk1fTU9ERV9EUE1TX09GRik7DQo+ID4gKwlpbnRlbF9k cF9zaW5rX2RwbXMoaW50ZWxfZHAsIERSTV9NT0RFX0RQTVNfT0ZGKTsNCj4gPiAgDQo+ID4gIAlp bnRlbF9kaXNhYmxlX2RkaV9idWYoZW5jb2Rlcik7DQo+ID4gIA0KPiA+IC0tIA0KPiA+IDIuMTQu MQ0KPiANCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCklu dGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRw czovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=