From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Thulasimani, Sivakumar" Subject: Re: [PATCH] drm/i915: Resume DP MST before doing any kind of modesetting Date: Wed, 24 Feb 2016 08:03:04 +0530 Message-ID: <56CD1660.2030203@intel.com> References: <1456265512-15670-1-git-send-email-cpaul@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1456265512-15670-1-git-send-email-cpaul@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Lyude , intel-gfx@lists.freedesktop.org Cc: David Airlie , Daniel Vetter , "open list:INTEL DRM DRIVERS excluding Poulsbo, Moorestow..., linux-kernel@vger.kernel.org open list" , stable@vger.kernel.org List-Id: intel-gfx@lists.freedesktop.org CgpPbiAyLzI0LzIwMTYgMzo0MSBBTSwgTHl1ZGUgd3JvdGU6Cj4gQXMgaXQgdHVybnMgb3V0LCBy ZXN1bWluZyBEUCBNU1QgaXMgcmFjZXkgc2luY2Ugd2UgZG9uJ3QgbWFrZSBzdXJlIE1TVAo+IGlz IHJlYWR5IGJlZm9yZSB3ZSBzdGFydCBtb2Rlc2V0dGluZywgaXQganVzdCB1c3VhbGx5IGhhcHBl bnMgdG8gYmUKPiByZWFkeSBpbiB0aW1lLiBUaGlzIGlzbid0IHRoZSBjYXNlIG9uIGFsbCBzeXN0 ZW1zLCBwYXJ0aWN1bGFybHkgYQo+IFRoaW5rUGFkIFQ1NjAgd2l0aCBkaXNwbGF5cyBjb25uZWN0 ZWQgdGhyb3VnaCB0aGUgZG9jay4gT24gdGhlc2UKPiBzeXN0ZW1zLCByZXN1bWluZyB0aGUgbGFw dG9wIHdoaWxlIGNvbm5lY3RlZCB0byB0aGUgZG9jayB1c3VhbGx5IHJlc3VsdHMKPiBpbiBibGFu ayBtb25pdG9ycy4gTWFraW5nIHN1cmUgTVNUIGlzIHJlYWR5IGJlZm9yZSBkb2luZyBhbnkga2lu ZCBvZgo+IG1vZGVzZXR0aW5nIGZpeGVzIHRoaXMgaXNzdWUuCmJhc2ljIHF1ZXN0aW9uIHNpbmNl IGkgaGF2ZW4ndCB3b3JrZWQgb24gTVNUIG11Y2guIE1TVCBzaG91bGQgd29yayBsaWtlIGFueQpv dGhlciBkaWdpdGFsIHBhbmVsIG9uIHJlc3VtZS4gaS5lIGRldGVjdCBmb2xsb3dlZCBieSBtb2Rl c2V0LiBpbiB0aGUgCm1vZGlmaWVkCmNvbW1pdCBtZW50aW9uZWQgYmVsb3cgaXMgaXQgZmFpbGlu ZyB0byBkZXRlY3QgdGhlIHBhbmVsIG9yIGZhaWxpbmcgYXQgCnRoZSBtb2Rlc2V0ID8KaWYgd2Ug YXJlIGRlcGVuZGluZyBvbiB0aGUgaW50ZWxfZGlzcGxheV9yZXN1bWUsIGhvdyBhYm91dCBtb3Zp bmcgdGhlCmludGVsX2RwX21zdF9yZXN1bWUganVzdCBhYm92ZSBpbnRlbF9kaXNwbGF5X3Jlc3Vt ZT8KCgpHZW5lcmljIHF1ZXN0aW9uIHRvIG90aGVycyBpbiBtYWlsIGxpc3Qgb24gaTkxNV9kcm1f cmVzdW1lCndlIGFyZSBkb2luZyBhIG1vZGVzZXQgYW5kIHRoZW4gZG9pbmcgdGhlIGRldGVjdC9o cGQgaW5pdC4Kc2hvdWxkbid0IHRoaXMgYmUgdGhlIG90aGVyIHdheSByb3VuZCA/IGFsbW9zdCBh bGwgZGlzcGxheXMKd2lsbCBwYXNzIGEgbW9kZXNldCBldmVuIGlmIGRpc3BsYXkgaXMgbm90IGNv bm5lY3RlZCBzbyB3ZQphcmUgc3BlbmRpbmcgdGltZSBvbiBtb2Rlc2V0IGV2ZW4gZm9yIGRpc3Bs YXlzIHRoYXQgd2VyZQpyZW1vdmVkIGR1cmluZyB0aGUgc3VzcGVuZCBzdGF0ZS4gaWYgdGhpcyBp cyB0byBzaW1wbHkKZHJtX3N0YXRlIGJlaW5nIHNhdmVkIGFuZCByZXN0b3JlZCwKPiBXZSBvcmln aW5hbGx5IGNoYW5nZWQgdGhlIHJlc3VtZSBvcmRlciBpbgo+Cj4gCWNvbW1pdCBlN2Q2ZjdkNzA4 MjkgKCJkcm0vaTkxNTogcmVzdW1lIE1TVCBhZnRlciByZWFkaW5nIGJhY2sgaHcgc3RhdGUiKQo+ Cj4gdG8gZml4IGEgdG9uIG9mIFdBUk5fT04ncyBhZnRlciByZXN1bWUsIGJ1dCB0aGlzIGRvZXNu J3Qgc2VlbSB0byBiZSBhbgo+IGlzc3VlIG5vdyBhbnlob3cuCj4KPiBDQzogc3RhYmxlQHZnZXIu a2VybmVsLm9yZwo+IFNpZ25lZC1vZmYtYnk6IEx5dWRlIDxjcGF1bEByZWRoYXQuY29tPgo+IC0t LQo+ICAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9kcnYuYyB8IDEwICsrKysrKysrLS0KPiAg IDEgZmlsZSBjaGFuZ2VkLCA4IGluc2VydGlvbnMoKyksIDIgZGVsZXRpb25zKC0pCj4KPiBkaWZm IC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9kcnYuYyBiL2RyaXZlcnMvZ3B1L2Ry bS9pOTE1L2k5MTVfZHJ2LmMKPiBpbmRleCBmMzU3MDU4Li40ZGNmM2RkIDEwMDY0NAo+IC0tLSBh L2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZHJ2LmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0v aTkxNS9pOTE1X2Rydi5jCj4gQEAgLTczMyw2ICs3MzMsMTQgQEAgc3RhdGljIGludCBpOTE1X2Ry bV9yZXN1bWUoc3RydWN0IGRybV9kZXZpY2UgKmRldikKPiAgIAlpbnRlbF9vcHJlZ2lvbl9zZXR1 cChkZXYpOwo+ICAgCj4gICAJaW50ZWxfaW5pdF9wY2hfcmVmY2xrKGRldik7Cj4gKwo+ICsJLyoK PiArCSAqIFdlIG5lZWQgdG8gbWFrZSBzdXJlIHRoYXQgd2UgcmVzdW1lIE1TVCBiZWZvcmUgZG9p bmcgYW55dGhpbmcKPiArCSAqIGRpc3BsYXkgcmVsYXRlZCwgb3RoZXJ3aXNlIHdlIHJpc2sgdHJ5 aW5nIHRvIGJyaW5nIHVwIGEgZGlzcGxheSBvbgo+ICsJICogTVNUIGJlZm9yZSB0aGUgaHViIGlz IGFjdHVhbGx5IHJlYWR5Cj4gKwkgKi8KPiArCWludGVsX2RwX21zdF9yZXN1bWUoZGV2KTsKPiAr ClRoaXMgZG9lcyBub3QgbG9vayBwcm9wZXIuIGlmIHRoZSBDRCBjbG9jayBpcyB0dXJuZWQgb2Zm IGR1cmluZyBzdXNwZW5kCm91ciBkcGNkIHJlYWQgaXRzZWxmIG1pZ2h0IGZhaWwgdGlsbCB3ZSBl bmFibGUgQ0QgQ2xvY2suCgpyZWdhcmRzLApTaXZha3VtYXIKPiAgIAlkcm1fbW9kZV9jb25maWdf cmVzZXQoZGV2KTsKPiAgIAo+ICAgCS8qCj4gQEAgLTc2NSw4ICs3NzMsNiBAQCBzdGF0aWMgaW50 IGk5MTVfZHJtX3Jlc3VtZShzdHJ1Y3QgZHJtX2RldmljZSAqZGV2KQo+ICAgCWludGVsX2Rpc3Bs YXlfcmVzdW1lKGRldik7Cj4gICAJZHJtX21vZGVzZXRfdW5sb2NrX2FsbChkZXYpOwo+ICAgCj4g LQlpbnRlbF9kcF9tc3RfcmVzdW1lKGRldik7Cj4gLQo+ICAgCS8qCj4gICAJICogLi4uIGJ1dCBh bHNvIG5lZWQgdG8gbWFrZSBzdXJlIHRoYXQgaG90cGx1ZyBwcm9jZXNzaW5nCj4gICAJICogZG9l c24ndCBjYXVzZSBoYXZvYy4gTGlrZSBpbiB0aGUgZHJpdmVyIGxvYWQgY29kZSB3ZSBkb24ndAoK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4 IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==