From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH 1/2] drm/i915/edp: read edp display control registers unconditionally Date: Thu, 26 Oct 2017 17:55:02 +0300 Message-ID: <20171026145502.GR10981@intel.com> References: <20171026142932.17737-1-jani.nikula@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id AC42E6E030 for ; Thu, 26 Oct 2017 14:55:05 +0000 (UTC) Content-Disposition: inline In-Reply-To: <20171026142932.17737-1-jani.nikula@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Jani Nikula Cc: intel-gfx@lists.freedesktop.org, stable@vger.kernel.org List-Id: intel-gfx@lists.freedesktop.org T24gVGh1LCBPY3QgMjYsIDIwMTcgYXQgMDU6Mjk6MzFQTSArMDMwMCwgSmFuaSBOaWt1bGEgd3Jv dGU6Cj4gUGVyIG15IHJlYWRpbmcgb2YgdGhlIGVEUCBzcGVjLCBEUF9EUENEX0RJU1BMQVlfQ09O VFJPTF9DQVBBQkxFIGJpdCBpbgo+IERQX0VEUF9DT05GSUdVUkFUSU9OX0NBUCBzaG91bGQgYmUg c2V0IGlmIHRoZSBlRFAgZGlzcGxheSBjb250cm9sCj4gcmVnaXN0ZXJzIHN0YXJ0aW5nIGF0IG9m ZnNldCBEUF9FRFBfRFBDRF9SRVYgYXJlICJlbmFibGVkIi4gQ3VycmVudGx5IHdlCj4gY2hlY2sg dGhlIGJpdCBiZWZvcmUgcmVhZGluZyB0aGUgcmVnaXN0ZXJzLCBhbmQgRFBfRURQX0RQQ0RfUkVW IGlzIHRoZQo+IG9ubHkgd2F5IHRvIGRldGVjdCBlRFAgcmV2aXNpb24uCj4gCj4gVHVybnMgb3V0 IHRoZXJlIGFyZSAobGlrZWx5IGJ1Z2d5KSBkaXNwbGF5cyB0aGF0IHJlcXVpcmUgZURQIDEuNCsK PiBmZWF0dXJlcywgc3VjaCBhcyBzdXBwb3J0ZWQgbGluayByYXRlcyBhbmQgbGluayByYXRlIHNl bGVjdCwgYnV0IGRvIG5vdAo+IGhhdmUgdGhlIGJpdCBzZXQuIFJlYWQgdGhlIGRpc3BsYXkgY29u dHJvbCByZWdpc3RlcnMKPiB1bmNvbmRpdGlvbmFsbHkuIFRoZXkgYXJlIHN1cHBvc2VkIHRvIHJl YWQgemVybyBhbnl3YXkgaWYgdGhleSBhcmUgbm90Cj4gc3VwcG9ydGVkLCBzbyB0aGVyZSBzaG91 bGQgYmUgbm8gaGFybSBpbiB0aGlzLgo+IAo+IFRoaXMgZml4ZXMgdGhlIHJlZmVyZW5jZWQgYnVn IGJ5IGVuYWJsaW5nIHRoZSBlRFAgdmVyc2lvbiBjaGVjaywgYW5kCj4gdGh1cyByZWFkaW5nIG9m IHRoZSBzdXBwb3J0ZWQgbGluayByYXRlcy4gVGhlIHBhbmVsIGluIHF1ZXN0aW9uIGhhcyAwIGlu Cj4gRFBfTUFYX0xJTktfUkFURSB3aGljaCBpcyBvbmx5IHN1cHBvcnRlZCBpbiBlRFAgMS40Ky4g V2l0aG91dCB0aGUKPiBzdXBwb3J0ZWQgbGluayByYXRlcyBtZXRob2Qgd2UgZGVmYXVsdCB0byBS QlIgd2hpY2ggaXMgaW5zdWZmaWNpZW50IGZvcgo+IHRoZSBwYW5lbCBuYXRpdmUgbW9kZS4gQXMg YSBjdXJpb3NpdHksIHRoZSBwYW5lbCBhbHNvIGhhcyBhIGJvZ3VzIHZhbHVlCj4gb2YgMHgxMiBp biBEUF9FRFBfRFBDRF9SRVYsIGJ1dCB0aGF0IHBhc3NlcyBvdXIgY2hlY2sgZm9yID49IERQX0VE UF8xNAo+ICh3aGljaCBpcyAweDAzKS4KPiAKPiBCdWd6aWxsYTogaHR0cHM6Ly9idWdzLmZyZWVk ZXNrdG9wLm9yZy9zaG93X2J1Zy5jZ2k/aWQ9MTAzNDAwCj4gUmVwb3J0ZWQtYW5kLXRlc3RlZC1i eTogTmljb2xhcyBQLiA8aXNzdW4uYXJ0aXN0ZUBnbWFpbC5jb20+Cj4gQ2M6IFZpbGxlIFN5cmrD pGzDpCA8dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+Cj4gQ2M6IHN0YWJsZUB2Z2VyLmtl cm5lbC5vcmcKPiBTaWduZWQtb2ZmLWJ5OiBKYW5pIE5pa3VsYSA8amFuaS5uaWt1bGFAaW50ZWwu Y29tPgoKU2VyaWVzIGlzClJldmlld2VkLWJ5OiBWaWxsZSBTeXJqw6Rsw6QgPHZpbGxlLnN5cmph bGFAbGludXguaW50ZWwuY29tPgoKPiAtLS0KPiAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxf ZHAuYyB8IDEzICsrKysrKysrKystLS0KPiAgMSBmaWxlIGNoYW5nZWQsIDEwIGluc2VydGlvbnMo KyksIDMgZGVsZXRpb25zKC0pCj4gCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1 L2ludGVsX2RwLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcC5jCj4gaW5kZXggYWE3 NWY1NWVlYjYxLi4xNTg0MzhiYjAzODkgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5 MTUvaW50ZWxfZHAuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMKPiBA QCAtMzczNSw5ICszNzM1LDE2IEBAIGludGVsX2VkcF9pbml0X2RwY2Qoc3RydWN0IGludGVsX2Rw ICppbnRlbF9kcCkKPiAgCj4gIAl9Cj4gIAo+IC0JLyogUmVhZCB0aGUgZURQIERpc3BsYXkgY29u dHJvbCBjYXBhYmlsaXRpZXMgcmVnaXN0ZXJzICovCj4gLQlpZiAoKGludGVsX2RwLT5kcGNkW0RQ X0VEUF9DT05GSUdVUkFUSU9OX0NBUF0gJiBEUF9EUENEX0RJU1BMQVlfQ09OVFJPTF9DQVBBQkxF KSAmJgo+IC0JICAgIGRybV9kcF9kcGNkX3JlYWQoJmludGVsX2RwLT5hdXgsIERQX0VEUF9EUENE X1JFViwKPiArCS8qCj4gKwkgKiBSZWFkIHRoZSBlRFAgZGlzcGxheSBjb250cm9sIHJlZ2lzdGVy cy4KPiArCSAqCj4gKwkgKiBEbyB0aGlzIGluZGVwZW5kZW50IG9mIERQX0RQQ0RfRElTUExBWV9D T05UUk9MX0NBUEFCTEUgYml0IGluCj4gKwkgKiBEUF9FRFBfQ09ORklHVVJBVElPTl9DQVAsIGJl Y2F1c2Ugc29tZSBidWdneSBkaXNwbGF5cyBkbyBub3QgaGF2ZSBpdAo+ICsJICogc2V0LCBidXQg cmVxdWlyZSBlRFAgMS40KyBkZXRlY3Rpb24gKGUuZy4gZm9yIHN1cHBvcnRlZCBsaW5rIHJhdGVz Cj4gKwkgKiBtZXRob2QpLiBUaGUgZGlzcGxheSBjb250cm9sIHJlZ2lzdGVycyBzaG91bGQgcmVh ZCB6ZXJvIGlmIHRoZXkncmUKPiArCSAqIG5vdCBzdXBwb3J0ZWQgYW55d2F5Lgo+ICsJICovCj4g KwlpZiAoZHJtX2RwX2RwY2RfcmVhZCgmaW50ZWxfZHAtPmF1eCwgRFBfRURQX0RQQ0RfUkVWLAo+ ICAJCQkgICAgIGludGVsX2RwLT5lZHBfZHBjZCwgc2l6ZW9mKGludGVsX2RwLT5lZHBfZHBjZCkp ID09Cj4gIAkJCSAgICAgc2l6ZW9mKGludGVsX2RwLT5lZHBfZHBjZCkpCj4gIAkJRFJNX0RFQlVH X0tNUygiRURQIERQQ0QgOiAlKnBoXG4iLCAoaW50KSBzaXplb2YoaW50ZWxfZHAtPmVkcF9kcGNk KSwKPiAtLSAKPiAyLjExLjAKCi0tIApWaWxsZSBTeXJqw6Rsw6QKSW50ZWwgT1RDCl9fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5n IGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVk ZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=