From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Brezillon Subject: Re: [PATCH] drm/bridge: sii902x: fix get edid may fail Date: Mon, 23 Jan 2017 11:20:54 +0100 Message-ID: <20170123112054.148e3e2d@bbrezillon> References: <1485165602-19264-1-git-send-email-andrea.merello@iit.it> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail.free-electrons.com (mail.free-electrons.com [62.4.15.54]) by gabe.freedesktop.org (Postfix) with ESMTP id CE8146E424 for ; Mon, 23 Jan 2017 10:21:08 +0000 (UTC) In-Reply-To: <1485165602-19264-1-git-send-email-andrea.merello@iit.it> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Andrea Merello Cc: dri-devel@lists.freedesktop.org, Andrea Merello List-Id: dri-devel@lists.freedesktop.org SGkgQW5kcmVhLAoKT24gTW9uLCAyMyBKYW4gMjAxNyAxMTowMDowMiArMDEwMApBbmRyZWEgTWVy ZWxsbyA8YW5kcmVhLm1lcmVsbG9AZ21haWwuY29tPiB3cm90ZToKCj4gRnJvbTogQW5kcmVhIE1l cmVsbG8gPGFuZHJlYS5tZXJlbGxvQGdtYWlsLmNvbT4KPiAKPiBUaGUgc3RhbmRhcmQgRFJNIGZ1 bmN0aW9uIHRvIGdldCB0aGUgZWRpZCBmcm9tIHRoZSBpMmMgYnVzIHBlcmZvcm1zCj4gKGF0IGxl YXN0KSB0d28gdHJhbnNmZXJzLgo+IAo+IEJ5IGV4cGVyaW1lbnRzIGl0IHNlZW1zIHRoYXQgdGhl IHNpaTkwMjJhIGhhdmUgcHJvYmxlbXMgd2l0aCB0aGUKPiAybmQgSTJDIHN0YXJ0LCBhdCBsZWFz dCB1bmxlc3MgYSB3YWl0IGlzIGludHJvZHVjZWQgZGV0d2VlbiB0aGUKCgkJCQkJCSAgICAgIF4g YmV0d2VlbgoKPiB0d28gdHJhbnNmZXJzLgo+IAo+IFNvIHdlIHBlcmZvcm0gb25lIHNpbmdsZSBJ MkMgdHJhbnNmZXIsIGFuZCBpZiB0aGUgdHJhbnNmZXIgbXVzdCBiZQo+IHNwbGl0LCB0aGVuIHdl IGludHJvZHVjZSBhIGRlbGF5LgoKVGhhdCdzIG5vdCBleGFjdGx5IHdoYXQgdGhpcyBwYXRjaCBk b2VzOiB5b3UncmUgaW50cm9kdWNpbmcgYSBkZWxheQpiZXR3ZWVuIGVhY2ggcmV0cnkuIFNvLCBp ZiB0aGUgdHJhbnNjZWl2ZXIgcmVhbGx5IHJlcXVpcmVzIGEgZGVsYXkKYmV0d2VlbiBlYWNoIHRy YW5zZmVyLCB5b3UnbGwgaGF2ZSB0byByZXRyeSBhdCBsZWFzdCBvbmNlIG9uIHRoZSAybmQKdHJh bnNmZXIuCgpJIGd1ZXNzIGEgYmV0dGVyIHNvbHV0aW9uIHdvdWxkIGJlIHRvIGFkZCBhIGRlbGF5 IGV2ZW4gaW4gY2FzZSBvZgpzdWNjZXNzLCBvciBtYXliZSBtb2RpZnkgZHJtX2RvX2dldF9lZGlk KCkgdG8gb3B0aW9uYWxseSB3YWl0IGZvciBhCnNwZWNpZmllZCB0aW1lIGJldHdlZW4gZWFjaCB0 cmFuc2Zlci4KCkJUVywgc2lpOTAyeF9kb19wcm9iZV9kZGNfZWRpZCgpIGFuZCBkcm1fZG9fcHJv YmVfZGRjX2VkaWQoKSBhcmUgYWxtb3N0CmlkZW50aWNhbCAoZXhjZXB0IGZvciB0aGUgZXh0cmEg ZGVsYXkoKSksIHNvIG1heWJlIHdlIHNob3VsZCBleHBvcnQKZHJtX2RvX3Byb2JlX2RkY19lZGlk KCkgYW5kIGFkZCBhbiBleHRyYSBkZWxheV91cyB0byBpdC4KCj4gCj4gU2lnbmVkLW9mZi1ieTog QW5kcmVhIE1lcmVsbG8gPGFuZHJlYS5tZXJlbGxvQGlpdC5pdD4KPiBDYzogQW5kcmVhIE1lcmVs bG8gPGFuZHJlYS5tZXJlbGxvQGdtYWlsLmNvbT4KPiBDYzogQm9yaXMgQnJlemlsbG9uIDxib3Jp cy5icmV6aWxsb25AZnJlZS1lbGVjdHJvbnMuY29tPgo+IENjOiBBcmNoaXQgVGFuZWphIDxhcmNo aXR0QGNvZGVhdXJvcmEub3JnPgo+IENjOiBEYXZpZCBBaXJsaWUgPGFpcmxpZWRAbGludXguaWU+ Cj4gLS0tCj4gIGRyaXZlcnMvZ3B1L2RybS9icmlkZ2Uvc2lpOTAyeC5jIHwgNzAgKysrKysrKysr KysrKysrKysrKysrKysrKysrKysrKysrKysrKysrLQo+ICAxIGZpbGUgY2hhbmdlZCwgNjkgaW5z ZXJ0aW9ucygrKSwgMSBkZWxldGlvbigtKQo+IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9k cm0vYnJpZGdlL3NpaTkwMnguYyBiL2RyaXZlcnMvZ3B1L2RybS9icmlkZ2Uvc2lpOTAyeC5jCj4g aW5kZXggOTEyNmQwMy4uMDQyZDdlMiAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vYnJp ZGdlL3NpaTkwMnguYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9icmlkZ2Uvc2lpOTAyeC5jCj4g QEAgLTEzMyw2ICsxMzMsNjIgQEAgc3RhdGljIGNvbnN0IHN0cnVjdCBkcm1fY29ubmVjdG9yX2Z1 bmNzIHNpaTkwMnhfY29ubmVjdG9yX2Z1bmNzID0gewo+ICAJLmF0b21pY19kZXN0cm95X3N0YXRl ID0gZHJtX2F0b21pY19oZWxwZXJfY29ubmVjdG9yX2Rlc3Ryb3lfc3RhdGUsCj4gIH07Cj4gIAo+ ICsjZGVmaW5lIEREQ19TRUdNRU5UX0FERFIgMHgzMAo+ICtzdGF0aWMgaW50IHNpaTkwMnhfZG9f cHJvYmVfZGRjX2VkaWQodm9pZCAqZGF0YSwgdTggKmJ1ZiwKPiArCQkJCSAgICAgdW5zaWduZWQg aW50IGJsb2NrLCBzaXplX3QgbGVuKQo+ICt7Cj4gKwlzdHJ1Y3QgaTJjX2FkYXB0ZXIgKmFkYXB0 ZXIgPSBkYXRhOwo+ICsJdW5zaWduZWQgY2hhciBzdGFydCA9IGJsb2NrICogRURJRF9MRU5HVEg7 Cj4gKwl1bnNpZ25lZCBjaGFyIHNlZ21lbnQgPSBibG9jayA+PiAxOwo+ICsJdW5zaWduZWQgY2hh ciB4ZmVycyA9IHNlZ21lbnQgPyAzIDogMjsKPiArCWludCByZXQsIHJldHJpZXMgPSA1Owo+ICsK PiArCS8qCj4gKwkgKiBUaGUgY29yZSBJMkMgZHJpdmVyIHdpbGwgYXV0b21hdGljYWxseSByZXRy eSB0aGUgdHJhbnNmZXIgaWYgdGhlCj4gKwkgKiBhZGFwdGVyIHJlcG9ydHMgRUFHQUlOLiBIb3dl dmVyLCB3ZSBmaW5kIHRoYXQgYml0LWJhbmdpbmcgdHJhbnNmZXJzCj4gKwkgKiBhcmUgc3VzY2Vw dGlibGUgdG8gZXJyb3JzIHVuZGVyIGEgaGVhdmlseSBsb2FkZWQgbWFjaGluZSBhbmQKPiArCSAq IGdlbmVyYXRlIHNwdXJpb3VzIE5BS3MgYW5kIHRpbWVvdXRzLiBSZXRyeWluZyB0aGUgdHJhbnNm ZXIKPiArCSAqIG9mIHRoZSBpbmRpdmlkdWFsIGJsb2NrIGEgZmV3IHRpbWVzIHNlZW1zIHRvIG92 ZXJjb21lIHRoaXMuCj4gKwkgKi8KPiArCXdoaWxlICgxKSB7Cj4gKwkJc3RydWN0IGkyY19tc2cg bXNnc1tdID0gewo+ICsJCQl7Cj4gKwkJCQkuYWRkcgk9IEREQ19TRUdNRU5UX0FERFIsCj4gKwkJ CQkuZmxhZ3MJPSAwLAo+ICsJCQkJLmxlbgk9IDEsCj4gKwkJCQkuYnVmCT0gJnNlZ21lbnQsCj4g KwkJCX0sIHsKPiArCQkJCS5hZGRyCT0gRERDX0FERFIsCj4gKwkJCQkuZmxhZ3MJPSAwLAo+ICsJ CQkJLmxlbgk9IDEsCj4gKwkJCQkuYnVmCT0gJnN0YXJ0LAo+ICsJCQl9LCB7Cj4gKwkJCQkuYWRk cgk9IEREQ19BRERSLAo+ICsJCQkJLmZsYWdzCT0gSTJDX01fUkQsCj4gKwkJCQkubGVuCT0gbGVu LAo+ICsJCQkJLmJ1Zgk9IGJ1ZiwKPiArCQkJfQo+ICsJCX07Cj4gKwo+ICsJCS8qCj4gKwkJICog QXZvaWQgc2VuZGluZyB0aGUgc2VnbWVudCBhZGRyIHRvIG5vdCB1cHNldCBub24tY29tcGxpYW50 Cj4gKwkJICogRERDIG1vbml0b3JzLgo+ICsJCSAqLwo+ICsJCXJldCA9IGkyY190cmFuc2Zlcihh ZGFwdGVyLCAmbXNnc1szIC0geGZlcnNdLCB4ZmVycyk7Cj4gKwo+ICsJCWlmIChyZXQgPT0gLUVO WElPKSB7Cj4gKwkJCURSTV9ERUJVR19LTVMoImRybTogc2tpcHBpbmcgbm9uLWV4aXN0ZW50IGFk YXB0ZXIgJXNcbiIsCj4gKwkJCQkgICAgICBhZGFwdGVyLT5uYW1lKTsKPiArCQkJYnJlYWs7Cj4g KwkJfQo+ICsJCWlmIChyZXQgPT0geGZlcnMgfHwgLS1yZXRyaWVzID09IDApCj4gKwkJCWJyZWFr Owo+ICsKPiArCQl1ZGVsYXkoMTAwKTsKPiArCX0KPiArCj4gKwlyZXR1cm4gcmV0ID09IHhmZXJz ID8gMCA6IC0xOwo+ICt9CgpNaXNzaW5nIGVtcHR5IGxpbmUgaGVyZS4KCj4gIHN0YXRpYyBpbnQg c2lpOTAyeF9nZXRfbW9kZXMoc3RydWN0IGRybV9jb25uZWN0b3IgKmNvbm5lY3RvcikKPiAgewo+ ICAJc3RydWN0IHNpaTkwMnggKnNpaTkwMnggPSBjb25uZWN0b3JfdG9fc2lpOTAyeChjb25uZWN0 b3IpOwo+IEBAIC0xNjgsOCArMjI0LDIwIEBAIHN0YXRpYyBpbnQgc2lpOTAyeF9nZXRfbW9kZXMo c3RydWN0IGRybV9jb25uZWN0b3IgKmNvbm5lY3RvcikKPiAgCWlmIChyZXQpCj4gIAkJcmV0dXJu IHJldDsKPiAgCj4gLQllZGlkID0gZHJtX2dldF9lZGlkKGNvbm5lY3Rvciwgc2lpOTAyeC0+aTJj LT5hZGFwdGVyKTsKPiArCS8qIGRybV9nZXRfZWRpZCgpIHJ1bnMgdHdvIEkyQyB0cmFuc2ZlcnMu IFRoZSBzaWk5MDJ4IHNlZW1zCgpQbGVhc2UgdXNlIGtlcm5lbCBjb21tZW50IHN0eWxlOgoKCS8q CgkgKiAuLi4KCj4gKwkgKiB0byBoYXZlIHByb2JsZW0gd2l0aCB0aGUgMm5kIEkyQyBzdGFydC4g QSB3YWl0IHNlZW1zIG5lZWRlZC4KPiArCSAqIFNvLCB3ZSBkb24ndCBwZXJmb3JtIHVzZSBkcm1f Z2V0X2VkaWQoKS4gV2UgZG9uJ3QgcGVyZm9ybQo+ICsJICogdGhlIGZpcnN0ICJwcm9iZSIgdHJh bnNmZXIsIGFuZCB3ZSB1c2UgYSBjdXN0b20gYmxvY2sgcmVhZAo+ICsJICogZnVuY3Rpb24gdGhh dCwgaW4gY2FzZSB0aGUgdHJhc2ZlciBpcyBzcGxpdCwgZG9lcyBpbnRyb2R1Y2UKPiArCSAqIGEg ZGVsYXkuCj4gKwkgKi8KPiArCWVkaWQgPSBkcm1fZG9fZ2V0X2VkaWQoY29ubmVjdG9yLCBzaWk5 MDJ4X2RvX3Byb2JlX2RkY19lZGlkLAo+ICsJCQkgICAgICAgc2lpOTAyeC0+aTJjLT5hZGFwdGVy KTsKPiArCWlmICghZWRpZCkKPiArCQlyZXR1cm4gbnVtOwo+ICsKCmRybV9nZXRfZWRpZCgpIGNh bGxzIGRybV9nZXRfZGlzcGxheWlkKCkganVzdCBhZnRlciBkcm1fZG9fZ2V0X2VkaWQoKS4KQXJl IHlvdSBzdXJlIHRoaXMgaXMgbm90IG5lZWRlZCBoZXJlPwoKPiAgCWRybV9tb2RlX2Nvbm5lY3Rv cl91cGRhdGVfZWRpZF9wcm9wZXJ0eShjb25uZWN0b3IsIGVkaWQpOwo+ICsKPiAgCWlmIChlZGlk KSB7Cj4gIAkJbnVtID0gZHJtX2FkZF9lZGlkX21vZGVzKGNvbm5lY3RvciwgZWRpZCk7Cj4gIAkJ a2ZyZWUoZWRpZCk7CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5v cmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2 ZWwK