From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCHv4 3/3] drm/i915: add DisplayPort CEC-Tunneling-over-AUX support Date: Mon, 18 Sep 2017 16:05:31 +0300 Message-ID: <20170918130531.GW4914@intel.com> References: <20170916141726.4921-1-hverkuil@xs4all.nl> <20170916141726.4921-4-hverkuil@xs4all.nl> 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 B68C46E0BC for ; Mon, 18 Sep 2017 13:05:44 +0000 (UTC) Content-Disposition: inline In-Reply-To: <20170916141726.4921-4-hverkuil@xs4all.nl> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Hans Verkuil Cc: Daniel Vetter , Hans Verkuil , dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org List-Id: dri-devel@lists.freedesktop.org T24gU2F0LCBTZXAgMTYsIDIwMTcgYXQgMDQ6MTc6MjZQTSArMDIwMCwgSGFucyBWZXJrdWlsIHdy b3RlOgo+IEZyb206IEhhbnMgVmVya3VpbCA8aGFucy52ZXJrdWlsQGNpc2NvLmNvbT4KPiAKPiBJ bXBsZW1lbnQgc3VwcG9ydCBmb3IgdGhpcyBEaXNwbGF5UG9ydCBmZWF0dXJlLgo+IAo+IFRoZSBj ZWMgZGV2aWNlIGlzIGNyZWF0ZWQgd2hlbmV2ZXIgaXQgZGV0ZWN0cyBhbiBhZGFwdGVyIHRoYXQK PiBoYXMgdGhpcyBmZWF0dXJlLiBJdCBpcyBvbmx5IHJlbW92ZWQgd2hlbiBhIG5ldyBhZGFwdGVy IGlzIGNvbm5lY3RlZAo+IHRoYXQgZG9lcyBub3Qgc3VwcG9ydCB0aGlzLiBJZiBhIG5ldyBhZGFw dGVyIGlzIGNvbm5lY3RlZCB0aGF0IGhhcwo+IGRpZmZlcmVudCBwcm9wZXJ0aWVzIHRoYW4gdGhl IHByZXZpb3VzIG9uZSwgdGhlbiB0aGUgb2xkIGNlYyBkZXZpY2UgaXMKPiB1bnJlZ2lzdGVyZWQg YW5kIGEgbmV3IG9uZSBpcyByZWdpc3RlcmVkIHRvIHJlcGxhY2UgdGhlIG9sZCBvbmUuCj4gCj4g U2lnbmVkLW9mZi1ieTogSGFucyBWZXJrdWlsIDxoYW5zLnZlcmt1aWxAY2lzY28uY29tPgo+IFRl c3RlZC1ieTogQ2FybG9zIFNhbnRhIDxjYXJsb3Muc2FudGFAaW50ZWwuY29tPgo+IC0tLQo+ICBk cml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcC5jIHwgMTggKysrKysrKysrKysrKystLS0tCj4g IDEgZmlsZSBjaGFuZ2VkLCAxNCBpbnNlcnRpb25zKCspLCA0IGRlbGV0aW9ucygtKQo+IAo+IGRp ZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcC5jIGIvZHJpdmVycy9ncHUv ZHJtL2k5MTUvaW50ZWxfZHAuYwo+IGluZGV4IDY0ZmE3NzRjODU1Yi4uZmRiODUzZDJjNDU4IDEw MDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMKPiArKysgYi9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcC5jCj4gQEAgLTMyLDYgKzMyLDcgQEAKPiAgI2luY2x1 ZGUgPGxpbnV4L25vdGlmaWVyLmg+Cj4gICNpbmNsdWRlIDxsaW51eC9yZWJvb3QuaD4KPiAgI2lu Y2x1ZGUgPGFzbS9ieXRlb3JkZXIuaD4KPiArI2luY2x1ZGUgPG1lZGlhL2NlYy5oPgo+ICAjaW5j bHVkZSA8ZHJtL2RybVAuaD4KPiAgI2luY2x1ZGUgPGRybS9kcm1fYXRvbWljX2hlbHBlci5oPgo+ ICAjaW5jbHVkZSA8ZHJtL2RybV9jcnRjLmg+Cj4gQEAgLTE0NDksNiArMTQ1MCw3IEBAIHN0YXRp YyB2b2lkIGludGVsX2F1eF9yZWdfaW5pdChzdHJ1Y3QgaW50ZWxfZHAgKmludGVsX2RwKQo+ICBz dGF0aWMgdm9pZAo+ICBpbnRlbF9kcF9hdXhfZmluaShzdHJ1Y3QgaW50ZWxfZHAgKmludGVsX2Rw KQo+ICB7Cj4gKwljZWNfdW5yZWdpc3Rlcl9hZGFwdGVyKGludGVsX2RwLT5hdXguY2VjX2FkYXAp Owo+ICAJa2ZyZWUoaW50ZWxfZHAtPmF1eC5uYW1lKTsKPiAgfQo+ICAKPiBAQCAtNDU4Nyw2ICs0 NTg5LDcgQEAgaW50ZWxfZHBfc2V0X2VkaWQoc3RydWN0IGludGVsX2RwICppbnRlbF9kcCkKPiAg CWludGVsX2Nvbm5lY3Rvci0+ZGV0ZWN0X2VkaWQgPSBlZGlkOwo+ICAKPiAgCWludGVsX2RwLT5o YXNfYXVkaW8gPSBkcm1fZGV0ZWN0X21vbml0b3JfYXVkaW8oZWRpZCk7Cj4gKwljZWNfc19waHlz X2FkZHJfZnJvbV9lZGlkKGludGVsX2RwLT5hdXguY2VjX2FkYXAsIGVkaWQpOwo+ICB9Cj4gIAo+ ICBzdGF0aWMgdm9pZAo+IEBAIC00NTk2LDYgKzQ1OTksNyBAQCBpbnRlbF9kcF91bnNldF9lZGlk KHN0cnVjdCBpbnRlbF9kcCAqaW50ZWxfZHApCj4gIAo+ICAJa2ZyZWUoaW50ZWxfY29ubmVjdG9y LT5kZXRlY3RfZWRpZCk7Cj4gIAlpbnRlbF9jb25uZWN0b3ItPmRldGVjdF9lZGlkID0gTlVMTDsK PiArCWNlY19waHlzX2FkZHJfaW52YWxpZGF0ZShpbnRlbF9kcC0+YXV4LmNlY19hZGFwKTsKPiAg Cj4gIAlpbnRlbF9kcC0+aGFzX2F1ZGlvID0gZmFsc2U7Cj4gIH0KPiBAQCAtNDYxNiwxMyArNDYy MCwxNyBAQCBpbnRlbF9kcF9sb25nX3B1bHNlKHN0cnVjdCBpbnRlbF9jb25uZWN0b3IgKmludGVs X2Nvbm5lY3RvcikKPiAgCWludGVsX2Rpc3BsYXlfcG93ZXJfZ2V0KHRvX2k5MTUoZGV2KSwgaW50 ZWxfZHAtPmF1eF9wb3dlcl9kb21haW4pOwo+ICAKPiAgCS8qIENhbid0IGRpc2Nvbm5lY3QgZURQ LCBidXQgeW91IGNhbiBjbG9zZSB0aGUgbGlkLi4uICovCj4gLQlpZiAoaXNfZWRwKGludGVsX2Rw KSkKPiArCWlmIChpc19lZHAoaW50ZWxfZHApKSB7Cj4gIAkJc3RhdHVzID0gZWRwX2RldGVjdChp bnRlbF9kcCk7Cj4gLQllbHNlIGlmIChpbnRlbF9kaWdpdGFsX3BvcnRfY29ubmVjdGVkKHRvX2k5 MTUoZGV2KSwKPiAtCQkJCQkgICAgICBkcF90b19kaWdfcG9ydChpbnRlbF9kcCkpKQo+ICsJfSBl bHNlIGlmIChpbnRlbF9kaWdpdGFsX3BvcnRfY29ubmVjdGVkKHRvX2k5MTUoZGV2KSwKPiArCQkJ CQkJZHBfdG9fZGlnX3BvcnQoaW50ZWxfZHApKSkgewo+ICAJCXN0YXR1cyA9IGludGVsX2RwX2Rl dGVjdF9kcGNkKGludGVsX2RwKTsKPiAtCWVsc2UKPiArCQlpZiAoc3RhdHVzID09IGNvbm5lY3Rv cl9zdGF0dXNfY29ubmVjdGVkKQo+ICsJCQlkcm1fZHBfY2VjX2NvbmZpZ3VyZV9hZGFwdGVyKCZp bnRlbF9kcC0+YXV4LAo+ICsJCQkJICAgICBpbnRlbF9kcC0+YXV4Lm5hbWUsIGRldi0+ZGV2KTsK ClRoaXMgaXMgY2x1dHRlcmluZyB1cCB0aGUgY29kZSBhIGJpdC4gTWF5YmUgZG8gdGhpcyBjYWxs IHNvbWV3aGVyZQphcm91bmQgdGhlIGludGVsX2RwX2NvbmZpZ3VyZV9tc3QoKSBjYWxsIGluc3Rl YWQgc2luY2UgdGhhdCBzZWVtcyB0byBiZQp0aGUgcGxhY2Ugd2hlcmUgd2Ugc3RhcnQgdG8gZG8g Y2hhbmdlcyB0byBleHRlcm5hbGx5IHZpc2libGUgc3RhdGUuCgpBY3R1YWxseSwgZG8gd2Ugd2Fu dCB0byByZWdpc3RlciBjZWMgYWRhcHRlcnMgZm9yIE1TVCBkZXZpY2VzPwoKQW5kIHNob3VsZG4n dCB3ZSBjYWxsIHRoaXMgcmVnYXJkbGVzcyBvZiB0aGUgY29ubmVjdG9yIHN0YXRlIHNvIHRoYXQK dGhlIGNlYyBhZGFwdGVyIGdldHMgdW5yZWdpc3RlcmVkIHdoZW4gdGhlIGRldmljZSBpcyBkaXNj b25uZWN0ZWQ/Cgo+ICsJfSBlbHNlIHsKPiAgCQlzdGF0dXMgPSBjb25uZWN0b3Jfc3RhdHVzX2Rp c2Nvbm5lY3RlZDsKPiArCX0KPiAgCj4gIAlpZiAoc3RhdHVzID09IGNvbm5lY3Rvcl9zdGF0dXNf ZGlzY29ubmVjdGVkKSB7Cj4gIAkJbWVtc2V0KCZpbnRlbF9kcC0+Y29tcGxpYW5jZSwgMCwgc2l6 ZW9mKGludGVsX2RwLT5jb21wbGlhbmNlKSk7Cj4gQEAgLTUwMTEsNiArNTAxOSw4IEBAIGludGVs X2RwX2hwZF9wdWxzZShzdHJ1Y3QgaW50ZWxfZGlnaXRhbF9wb3J0ICppbnRlbF9kaWdfcG9ydCwg Ym9vbCBsb25nX2hwZCkKPiAgCj4gIAlpbnRlbF9kaXNwbGF5X3Bvd2VyX2dldChkZXZfcHJpdiwg aW50ZWxfZHAtPmF1eF9wb3dlcl9kb21haW4pOwo+ICAKPiArCWRybV9kcF9jZWNfaXJxKCZpbnRl bF9kcC0+YXV4KTsKPiArCj4gIAlpZiAoaW50ZWxfZHAtPmlzX21zdCkgewo+ICAJCWlmIChpbnRl bF9kcF9jaGVja19tc3Rfc3RhdHVzKGludGVsX2RwKSA9PSAtRUlOVkFMKSB7Cj4gIAkJCS8qCj4g LS0gCj4gMi4xNC4xCgotLSAKVmlsbGUgU3lyasOkbMOkCkludGVsIE9UQwpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0 CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3Rv cC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwK