From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [PATCH 3/4] drm/dp: start a DPCD based DP sink/branch device quirk database Date: Mon, 29 May 2017 14:06:24 +0300 Message-ID: <87fufnly6n.fsf@intel.com> References: <91ec198dd95258dbf3bee2f6be739e0da73b4fdd.1495105635.git.jani.nikula@intel.com> <7cd76e34-5174-a360-ca2d-e27c9fe548cc@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <7cd76e34-5174-a360-ca2d-e27c9fe548cc@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Clint Taylor , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: dhinakaran.pandiyan@intel.com List-Id: dri-devel@lists.freedesktop.org T24gVGh1LCAxOCBNYXkgMjAxNywgQ2xpbnQgVGF5bG9yIDxjbGludG9uLmEudGF5bG9yQGludGVs LmNvbT4gd3JvdGU6Cj4gT24gMDUvMTgvMjAxNyAwNDoxMCBBTSwgSmFuaSBOaWt1bGEgd3JvdGU6 Cj4+IEZhY2UgdGhlIGZhY3QsIHRoZXJlIGFyZSBEaXNwbGF5IFBvcnQgc2luayBhbmQgYnJhbmNo IGRldmljZXMgb3V0IHRoZXJlCj4+IGluIHRoZSB3aWxkIHRoYXQgZG9uJ3QgZm9sbG93IHRoZSBE aXNwbGF5IFBvcnQgc3BlY2lmaWNhdGlvbnMsIG9yIHRoZXkKPj4gaGF2ZSBidWdzLCBvciBqdXN0 IG90aGVyd2lzZSByZXF1aXJlIHNwZWNpYWwgdHJlYXRtZW50LiBTdGFydCBhIGNvbW1vbgo+PiBx dWlyayBkYXRhYmFzZSB0aGUgZHJpdmVycyBjYW4gcXVlcnkgYmFzZWQgb24gdGhlIERQIGRldmlj ZQo+PiBpZGVudGlmaWNhdGlvbi4gQXQgbGVhc3QgZm9yIG5vdywgd2UgbGVhdmUgdGhlIHdvcmth cm91bmRzIGZvciB0aGUKPj4gZHJpdmVycyB0byBpbXBsZW1lbnQgYXMgdGhleSBzZWUgZml0Lgo+ Pgo+PiBGb3Igc3RhcnRlcnMsIGFkZCBhIGJyYW5jaCBkZXZpY2UgdGhhdCBjYW4ndCBoYW5kbGUg ZnVsbCAyNC1iaXQgbWFpbgo+PiBsaW5rIE1kaXYgYW5kIE5kaXYgbWFpbiBsaW5rIGF0dHJpYnV0 ZXMgcHJvcGVybHkuIE5hdHVyYWxseSwgdGhlCj4+IHdvcmthcm91bmQgb2YgcmVkdWNpbmcgbWFp biBsaW5rIGF0dHJpYnV0ZXMgZm9yIGFsbCBkZXZpY2VzIGVuZGVkIHVwIGluCj4+IHJlZ3Jlc3Np b25zIGZvciBvdGhlciBkZXZpY2VzLiBTbyBoZXJlIHdlIGFyZS4KPj4KPj4gdjI6IFJlYmFzZSBv biBEUk0gRFAgZGVzYyByZWFkIGhlbHBlcnMKPj4KPj4gdjM6IEZpeCB0aGUgT1VJIG1lbWNtcCBi bHVuZGVyIChDbGludCkKPgo+IFRlc3RlZC1ieTogQ2xpbnRvbiBUYXlsb3IgPGNsaW50b24uYS50 YXlsb3JAaW50ZWwuY29tPgo+IFJldmlld2VkLWJ5OiBDbGludG9uIFRheWxvciA8Y2xpbnRvbi5h LnRheWxvckBpbnRlbC5jb20+CgpJIHB1c2hlZCB0aGUgc2VyaWVzIHRvIGRybS1pbnRlbCB0b3Bp Yy9kcC1xdWlya3MgYnJhbmNoIGJhc2VkIG9uCnY0LjEyLXJjMywgd2l0aCB0aGUgZ29hbCBvZiBt ZXJnaW5nIHRoaXMgdG8gdjQuMTIuIFRoYW5rcyBmb3IgdGhlIHJldmlldwphbmQgdGVzdGluZyBz byBmYXI7IHdvdWxkIHlvdSBtaW5kIGdpdmluZyB0aGF0IGJyYW5jaCBhIGdvIHRvbywgdG8KZW5z dXJlIEkgZGlkbid0IHNjcmV3IGFueXRoaW5nIHVwIHdoaWxlIGFwcGx5aW5nPwoKQlIsCkphbmku CgoKPgo+Pgo+PiBDYzogVmlsbGUgU3lyasOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4LmludGVs LmNvbT4KPj4gQ2M6IERoaW5ha2FyYW4gUGFuZGl5YW4gPGRoaW5ha2FyYW4ucGFuZGl5YW5AaW50 ZWwuY29tPgo+PiBDYzogQ2xpbnQgVGF5bG9yIDxjbGludG9uLmEudGF5bG9yQGludGVsLmNvbT4K Pj4gQ2M6IEFkYW0gSmFja3NvbiA8YWpheEByZWRoYXQuY29tPgo+PiBDYzogSGFycnkgV2VudGxh bmQgPGhhcnJ5LndlbnRsYW5kQGFtZC5jb20+Cj4+IFNpZ25lZC1vZmYtYnk6IEphbmkgTmlrdWxh IDxqYW5pLm5pa3VsYUBpbnRlbC5jb20+Cj4+IC0tLQo+PiAgIGRyaXZlcnMvZ3B1L2RybS9kcm1f ZHBfaGVscGVyLmMgfCA1MiArKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKyst LQo+PiAgIGluY2x1ZGUvZHJtL2RybV9kcF9oZWxwZXIuaCAgICAgfCAzMiArKysrKysrKysrKysr KysrKysrKysrKysrCj4+ICAgMiBmaWxlcyBjaGFuZ2VkLCA4MiBpbnNlcnRpb25zKCspLCAyIGRl bGV0aW9ucygtKQo+Pgo+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2RybV9kcF9oZWxw ZXIuYyBiL2RyaXZlcnMvZ3B1L2RybS9kcm1fZHBfaGVscGVyLmMKPj4gaW5kZXggNTJlMGNhOWE1 YmIxLi4yMTNmYjgzN2UxYzQgMTAwNjQ0Cj4+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9kcm1fZHBf aGVscGVyLmMKPj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2RybV9kcF9oZWxwZXIuYwo+PiBAQCAt MTIwOSw2ICsxMjA5LDUxIEBAIGludCBkcm1fZHBfc3RvcF9jcmMoc3RydWN0IGRybV9kcF9hdXgg KmF1eCkKPj4gICB9Cj4+ICAgRVhQT1JUX1NZTUJPTChkcm1fZHBfc3RvcF9jcmMpOwo+PiAgIAo+ PiArc3RydWN0IGRwY2RfcXVpcmsgewo+PiArCXU4IG91aVszXTsKPj4gKwlib29sIGlzX2JyYW5j aDsKPj4gKwl1MzIgcXVpcmtzOwo+PiArfTsKPj4gKwo+PiArI2RlZmluZSBPVUkoZmlyc3QsIHNl Y29uZCwgdGhpcmQpIHsgKGZpcnN0KSwgKHNlY29uZCksICh0aGlyZCkgfQo+PiArCj4+ICtzdGF0 aWMgY29uc3Qgc3RydWN0IGRwY2RfcXVpcmsgZHBjZF9xdWlya19saXN0W10gPSB7Cj4+ICsJLyog QW5hbG9naXggNzczNyBuZWVkcyByZWR1Y2VkIE0gYW5kIE4gYXQgSEJSMiBsaW5rIHJhdGVzICov Cj4+ICsJeyBPVUkoMHgwMCwgMHgyMiwgMHhiOSksIHRydWUsIEJJVChEUF9EUENEX1FVSVJLX0xJ TUlURURfTV9OKSB9LAo+PiArfTsKPj4gKwo+PiArI3VuZGVmIE9VSQo+PiArCj4+ICsvKgo+PiAr ICogR2V0IGEgYml0IG1hc2sgb2YgRFBDRCBxdWlya3MgZm9yIHRoZSBzaW5rL2JyYW5jaCBkZXZp Y2UgaWRlbnRpZmllZCBieQo+PiArICogaWRlbnQuIFRoZSBxdWlyayBkYXRhIGlzIHNoYXJlZCBi dXQgaXQncyB1cCB0byB0aGUgZHJpdmVycyB0byBhY3Qgb24gdGhlCj4+ICsgKiBkYXRhLgo+PiAr ICoKPj4gKyAqIEZvciBub3csIG9ubHkgdGhlIE9VSSAoZmlyc3QgdGhyZWUgYnl0ZXMpIGlzIHVz ZWQsIGJ1dCB0aGlzIG1heSBiZSBleHRlbmRlZAo+PiArICogdG8gZGV2aWNlIGlkZW50aWZpY2F0 aW9uIHN0cmluZyBhbmQgaGFyZHdhcmUvZmlybXdhcmUgcmV2aXNpb25zIGxhdGVyLgo+PiArICov Cj4+ICtzdGF0aWMgdTMyCj4+ICtkcm1fZHBfZ2V0X3F1aXJrcyhjb25zdCBzdHJ1Y3QgZHJtX2Rw X2RwY2RfaWRlbnQgKmlkZW50LCBib29sIGlzX2JyYW5jaCkKPj4gK3sKPj4gKwljb25zdCBzdHJ1 Y3QgZHBjZF9xdWlyayAqcXVpcms7Cj4+ICsJdTMyIHF1aXJrcyA9IDA7Cj4+ICsJaW50IGk7Cj4+ ICsKPj4gKwlmb3IgKGkgPSAwOyBpIDwgQVJSQVlfU0laRShkcGNkX3F1aXJrX2xpc3QpOyBpKysp IHsKPj4gKwkJcXVpcmsgPSAmZHBjZF9xdWlya19saXN0W2ldOwo+PiArCj4+ICsJCWlmIChxdWly ay0+aXNfYnJhbmNoICE9IGlzX2JyYW5jaCkKPj4gKwkJCWNvbnRpbnVlOwo+PiArCj4+ICsJCWlm IChtZW1jbXAocXVpcmstPm91aSwgaWRlbnQtPm91aSwgc2l6ZW9mKGlkZW50LT5vdWkpKSAhPSAw KQo+PiArCQkJY29udGludWU7Cj4+ICsKPj4gKwkJcXVpcmtzIHw9IHF1aXJrLT5xdWlya3M7Cj4+ ICsJfQo+PiArCj4+ICsJcmV0dXJuIHF1aXJrczsKPj4gK30KPj4gKwo+PiAgIC8qKgo+PiAgICAq IGRybV9kcF9yZWFkX2Rlc2MgLSByZWFkIHNpbmsvYnJhbmNoIGRlc2NyaXB0b3IgZnJvbSBEUENE Cj4+ICAgICogQGF1eDogRGlzcGxheVBvcnQgQVVYIGNoYW5uZWwKPj4gQEAgLTEyMzEsMTQgKzEy NzYsMTcgQEAgaW50IGRybV9kcF9yZWFkX2Rlc2Moc3RydWN0IGRybV9kcF9hdXggKmF1eCwgc3Ry dWN0IGRybV9kcF9kZXNjICpkZXNjLAo+PiAgIAlpZiAocmV0IDwgMCkKPj4gICAJCXJldHVybiBy ZXQ7Cj4+ICAgCj4+ICsJZGVzYy0+cXVpcmtzID0gZHJtX2RwX2dldF9xdWlya3MoaWRlbnQsIGlz X2JyYW5jaCk7Cj4+ICsKPj4gICAJZGV2X2lkX2xlbiA9IHN0cm5sZW4oaWRlbnQtPmRldmljZV9p ZCwgc2l6ZW9mKGlkZW50LT5kZXZpY2VfaWQpKTsKPj4gICAKPj4gLQlEUk1fREVCVUdfS01TKCJE UCAlczogT1VJICUqcGhEIGRldi1JRCAlKnBFIEhXLXJldiAlZC4lZCBTVy1yZXYgJWQuJWRcbiIs Cj4+ICsJRFJNX0RFQlVHX0tNUygiRFAgJXM6IE9VSSAlKnBoRCBkZXYtSUQgJSpwRSBIVy1yZXYg JWQuJWQgU1ctcmV2ICVkLiVkIHF1aXJrcyAweCUwNHhcbiIsCj4+ICAgCQkgICAgICBpc19icmFu Y2ggPyAiYnJhbmNoIiA6ICJzaW5rIiwKPj4gICAJCSAgICAgIChpbnQpc2l6ZW9mKGlkZW50LT5v dWkpLCBpZGVudC0+b3VpLAo+PiAgIAkJICAgICAgZGV2X2lkX2xlbiwgaWRlbnQtPmRldmljZV9p ZCwKPj4gICAJCSAgICAgIGlkZW50LT5od19yZXYgPj4gNCwgaWRlbnQtPmh3X3JldiAmIDB4ZiwK Pj4gLQkJICAgICAgaWRlbnQtPnN3X21ham9yX3JldiwgaWRlbnQtPnN3X21pbm9yX3Jldik7Cj4+ ICsJCSAgICAgIGlkZW50LT5zd19tYWpvcl9yZXYsIGlkZW50LT5zd19taW5vcl9yZXYsCj4+ICsJ CSAgICAgIGRlc2MtPnF1aXJrcyk7Cj4+ICAgCj4+ICAgCXJldHVybiAwOwo+PiAgIH0KPj4gZGlm ZiAtLWdpdCBhL2luY2x1ZGUvZHJtL2RybV9kcF9oZWxwZXIuaCBiL2luY2x1ZGUvZHJtL2RybV9k cF9oZWxwZXIuaAo+PiBpbmRleCBhZWU1Yjk2YjUxZDcuLjcxN2NiODQ5NjcyNSAxMDA2NDQKPj4g LS0tIGEvaW5jbHVkZS9kcm0vZHJtX2RwX2hlbHBlci5oCj4+ICsrKyBiL2luY2x1ZGUvZHJtL2Ry bV9kcF9oZWxwZXIuaAo+PiBAQCAtMTA5MCwxMiArMTA5MCw0NCBAQCBzdHJ1Y3QgZHJtX2RwX2Rw Y2RfaWRlbnQgewo+PiAgIC8qKgo+PiAgICAqIHN0cnVjdCBkcm1fZHBfZGVzYyAtIERQIGJyYW5j aC9zaW5rIGRldmljZSBkZXNjcmlwdG9yCj4+ICAgICogQGlkZW50OiBEUCBkZXZpY2UgaWRlbnRp ZmljYXRpb24gZnJvbSBEUENEIDB4NDAwIChzaW5rKSBvciAweDUwMCAoYnJhbmNoKS4KPj4gKyAq IEBxdWlya3M6IFF1aXJrczsgdXNlIGRybV9kcF9oYXNfcXVpcmsoKSB0byBxdWVyeSBmb3IgdGhl IHF1aXJrcy4KPj4gICAgKi8KPj4gICBzdHJ1Y3QgZHJtX2RwX2Rlc2Mgewo+PiAgIAlzdHJ1Y3Qg ZHJtX2RwX2RwY2RfaWRlbnQgaWRlbnQ7Cj4+ICsJdTMyIHF1aXJrczsKPj4gICB9Owo+PiAgIAo+ PiAgIGludCBkcm1fZHBfcmVhZF9kZXNjKHN0cnVjdCBkcm1fZHBfYXV4ICphdXgsIHN0cnVjdCBk cm1fZHBfZGVzYyAqZGVzYywKPj4gICAJCSAgICAgYm9vbCBpc19icmFuY2gpOwo+PiAgIAo+PiAr LyoqCj4+ICsgKiBlbnVtIGRybV9kcF9xdWlyayAtIERpc3BsYXkgUG9ydCBzaW5rL2JyYW5jaCBk ZXZpY2Ugc3BlY2lmaWMgcXVpcmtzCj4+ICsgKgo+PiArICogRGlzcGxheSBQb3J0IHNpbmsgYW5k IGJyYW5jaCBkZXZpY2VzIGluIHRoZSB3aWxkIGhhdmUgYSB2YXJpZXR5IG9mIGJ1Z3MsIHRyeQo+ PiArICogdG8gY29sbGVjdCB0aGVtIGhlcmUuIFRoZSBxdWlya3MgYXJlIHNoYXJlZCwgYnV0IGl0 J3MgdXAgdG8gdGhlIGRyaXZlcnMgdG8KPj4gKyAqIGltcGxlbWVudCB3b3JrYXJvdW5kcyBmb3Ig dGhlbS4KPj4gKyAqLwo+PiArZW51bSBkcm1fZHBfcXVpcmsgewo+PiArCS8qKgo+PiArCSAqIEBE UF9EUENEX1FVSVJLX0xJTUlURURfTV9OOgo+PiArCSAqCj4+ICsJICogVGhlIGRldmljZSByZXF1 aXJlcyBtYWluIGxpbmsgYXR0cmlidXRlcyBNZGl2IGFuZCBOZGl2IHRvIGJlIGxpbWl0ZWQKPj4g KwkgKiB0byAxNiBiaXRzLgo+PiArCSAqLwo+PiArCURQX0RQQ0RfUVVJUktfTElNSVRFRF9NX04s Cj4+ICt9Owo+PiArCj4+ICsvKioKPj4gKyAqIGRybV9kcF9oYXNfcXVpcmsoKSAtIGRvZXMgdGhl IERQIGRldmljZSBoYXZlIGEgc3BlY2lmaWMgcXVpcmsKPj4gKyAqIEBkZXNjOiBEZXZpY2UgZGVj cmlwdG9yIGZpbGxlZCBieSBkcm1fZHBfcmVhZF9kZXNjKCkKPj4gKyAqIEBxdWlyazogUXVpcmsg dG8gcXVlcnkgZm9yCj4+ICsgKgo+PiArICogUmV0dXJuIHRydWUgaWYgRFAgZGV2aWNlIGlkZW50 aWZpZWQgYnkgQGRlc2MgaGFzIEBxdWlyay4KPj4gKyAqLwo+PiArc3RhdGljIGlubGluZSBib29s Cj4+ICtkcm1fZHBfaGFzX3F1aXJrKGNvbnN0IHN0cnVjdCBkcm1fZHBfZGVzYyAqZGVzYywgZW51 bSBkcm1fZHBfcXVpcmsgcXVpcmspCj4+ICt7Cj4+ICsJcmV0dXJuIGRlc2MtPnF1aXJrcyAmIEJJ VChxdWlyayk7Cj4+ICt9Cj4+ICsKPj4gICAjZW5kaWYgLyogX0RSTV9EUF9IRUxQRVJfSF8gKi8K PgoKLS0gCkphbmkgTmlrdWxhLCBJbnRlbCBPcGVuIFNvdXJjZSBUZWNobm9sb2d5IENlbnRlcgpf X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwg bWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0 cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwK