From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laurent Pinchart Subject: Re: [PATCH] drm: rcar-du: Support panels connected directly to the DPAD outputs Date: Wed, 6 Mar 2019 15:01:23 +0200 Message-ID: <20190306130123.GA4791@pendragon.ideasonboard.com> References: <20190302161725.25104-1-laurent.pinchart+renesas@ideasonboard.com> <38c22c56-6cf2-0930-4ed5-fde20e1e4915@ideasonboard.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0D0706E0A7 for ; Wed, 6 Mar 2019 13:01:33 +0000 (UTC) Content-Disposition: inline In-Reply-To: <38c22c56-6cf2-0930-4ed5-fde20e1e4915@ideasonboard.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Kieran Bingham Cc: linux-renesas-soc@vger.kernel.org, Kevin Key , Laurent Pinchart , dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org SGkgS2llcmFuLAoKT24gV2VkLCBNYXIgMDYsIDIwMTkgYXQgMTA6MDc6MTJBTSArMDAwMCwgS2ll cmFuIEJpbmdoYW0gd3JvdGU6Cj4gT24gMDIvMDMvMjAxOSAxNjoxNywgTGF1cmVudCBQaW5jaGFy dCB3cm90ZToKPiA+IFRoZSBSLUNhciBEVSBkcml2ZXIgYXNzdW1lcyB0aGF0IGEgYnJpZGdlIGlz IGFsd2F5cyBjb25uZWN0ZWQgdG8gdGhlIERVCj4gPiBvdXRwdXQuIFRoaXMgaXMgdmFsaWQgZm9y IHRoZSBMVkRTIGFuZCBIRE1JIG91dHB1dHMsIGJ1dCB0aGUgRFBBRAo+ID4gb3V0cHV0cyBjYW4g YmUgY29ubmVjdGVkIGRpcmVjdGx5IHRvIGEgcGFuZWwsIGluIHdoaWNoIGNhc2Ugbm8gYnJpZGdl IGlzCj4gPiBhdmFpbGFibGUuCj4gPiAKPiA+IFRvIHN1cHBvcnQgdGhpcyB1c2UgY2FzZSwgZGV0 ZWN0IHdoZXRoZXIgdGhlIGVudGl0aWVzIGNvbm5lY3RlZCB0byB0aGUKPiA+IERVIERQQUQgb3V0 cHV0cyBhcmUgZW5jb2RlcnMgb3IgcGFuZWxzIGJhc2VkIG9uIHRoZSBudW1iZXIgb2YgcG9ydHMg b2YKPiA+IHRoZWlyIERUIG5vZGUsIGFuZCByZXRyaWV2ZSB0aGUgY29ycmVzcG9uZGluZyB0eXBl IG9mIERSTSBvYmplY3RzLiBGb3IKPiA+IHBhbmVscywgYWRkaXRpb25hbGx5IGNyZWF0ZSBwYW5l bCBicmlkZ2UgaW5zdGFuY2VzLgo+ID4gCj4gPiBTaWduZWQtb2ZmLWJ5OiBMYXVyZW50IFBpbmNo YXJ0IDxsYXVyZW50LnBpbmNoYXJ0K3JlbmVzYXNAaWRlYXNvbmJvYXJkLmNvbT4KPiAKPiBFeGNl cHQgZm9yIHNvbWUgbWlub3Igd29yZGluZyBvbiB0aGUgY29tbWVudCwgd2hpY2ggSSdsbCBsZXQg eW91IGhhbmRsZSwKPiAKPiBSZXZpZXdlZC1ieTogS2llcmFuIEJpbmdoYW0gPGtpZXJhbi5iaW5n aGFtK3JlbmVzYXNAaWRlYXNvbmJvYXJkLmNvbT4KPiAKPiA+IC0tLQo+ID4gIGRyaXZlcnMvZ3B1 L2RybS9yY2FyLWR1L3JjYXJfZHVfZW5jb2Rlci5jIHwgNTQgKysrKysrKysrKysrKysrKysrKyst LS0KPiA+ICAxIGZpbGUgY2hhbmdlZCwgNDggaW5zZXJ0aW9ucygrKSwgNiBkZWxldGlvbnMoLSkK PiA+IAo+ID4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9yY2FyLWR1L3JjYXJfZHVfZW5j b2Rlci5jIGIvZHJpdmVycy9ncHUvZHJtL3JjYXItZHUvcmNhcl9kdV9lbmNvZGVyLmMKPiA+IGlu ZGV4IDhlZTRlNzYyZjRlNS4uNTk1ZWNmYTFmZjBlIDEwMDY0NAo+ID4gLS0tIGEvZHJpdmVycy9n cHUvZHJtL3JjYXItZHUvcmNhcl9kdV9lbmNvZGVyLmMKPiA+ICsrKyBiL2RyaXZlcnMvZ3B1L2Ry bS9yY2FyLWR1L3JjYXJfZHVfZW5jb2Rlci5jCj4gPiBAQCAtMjgsMTMgKzI4LDMzIEBAIHN0YXRp YyBjb25zdCBzdHJ1Y3QgZHJtX2VuY29kZXJfZnVuY3MgZW5jb2Rlcl9mdW5jcyA9IHsKPiA+ICAJ LmRlc3Ryb3kgPSBkcm1fZW5jb2Rlcl9jbGVhbnVwLAo+ID4gIH07Cj4gPiAgCj4gPiArc3RhdGlj IHVuc2lnbmVkIGludCByY2FyX2R1X2VuY29kZXJfY291bnRfcG9ydHMoc3RydWN0IGRldmljZV9u b2RlICpub2RlKQo+ID4gK3sKPiA+ICsJc3RydWN0IGRldmljZV9ub2RlICpwb3J0czsKPiA+ICsJ c3RydWN0IGRldmljZV9ub2RlICpwb3J0Owo+ID4gKwl1bnNpZ25lZCBpbnQgbnVtX3BvcnRzID0g MDsKPiA+ICsKPiA+ICsJcG9ydHMgPSBvZl9nZXRfY2hpbGRfYnlfbmFtZShub2RlLCAicG9ydHMi KTsKPiA+ICsJaWYgKCFwb3J0cykKPiA+ICsJCXBvcnRzID0gb2Zfbm9kZV9nZXQobm9kZSk7Cj4g PiArCj4gPiArCWZvcl9lYWNoX2NoaWxkX29mX25vZGUocG9ydHMsIHBvcnQpIHsKPiA+ICsJCWlm IChvZl9ub2RlX25hbWVfZXEocG9ydCwgInBvcnQiKSkKPiA+ICsJCQludW1fcG9ydHMrKzsKPiA+ ICsJfQo+ID4gKwo+ID4gKwlvZl9ub2RlX3B1dChub2RlKTsKPiA+ICsKPiA+ICsJcmV0dXJuIG51 bV9wb3J0czsKPiA+ICt9Cj4gPiArCj4gPiAgaW50IHJjYXJfZHVfZW5jb2Rlcl9pbml0KHN0cnVj dCByY2FyX2R1X2RldmljZSAqcmNkdSwKPiA+ICAJCQkgZW51bSByY2FyX2R1X291dHB1dCBvdXRw dXQsCj4gPiAgCQkJIHN0cnVjdCBkZXZpY2Vfbm9kZSAqZW5jX25vZGUpCj4gPiAgewo+ID4gIAlz dHJ1Y3QgcmNhcl9kdV9lbmNvZGVyICpyZW5jOwo+ID4gIAlzdHJ1Y3QgZHJtX2VuY29kZXIgKmVu Y29kZXI7Cj4gPiAtCXN0cnVjdCBkcm1fYnJpZGdlICpicmlkZ2UgPSBOVUxMOwo+ID4gKwlzdHJ1 Y3QgZHJtX2JyaWRnZSAqYnJpZGdlOwo+ID4gIAlpbnQgcmV0Owo+ID4gIAo+ID4gIAlyZW5jID0g ZGV2bV9remFsbG9jKHJjZHUtPmRldiwgc2l6ZW9mKCpyZW5jKSwgR0ZQX0tFUk5FTCk7Cj4gPiBA QCAtNDgsMTEgKzY4LDMzIEBAIGludCByY2FyX2R1X2VuY29kZXJfaW5pdChzdHJ1Y3QgcmNhcl9k dV9kZXZpY2UgKnJjZHUsCj4gPiAgCWRldl9kYmcocmNkdS0+ZGV2LCAiaW5pdGlhbGl6aW5nIGVu Y29kZXIgJXBPRiBmb3Igb3V0cHV0ICV1XG4iLAo+ID4gIAkJZW5jX25vZGUsIG91dHB1dCk7Cj4g PiAgCj4gPiAtCS8qIExvY2F0ZSB0aGUgRFJNIGJyaWRnZSBmcm9tIHRoZSBlbmNvZGVyIERUIG5v ZGUuICovCj4gPiAtCWJyaWRnZSA9IG9mX2RybV9maW5kX2JyaWRnZShlbmNfbm9kZSk7Cj4gPiAt CWlmICghYnJpZGdlKSB7Cj4gPiAtCQlyZXQgPSAtRVBST0JFX0RFRkVSOwo+ID4gLQkJZ290byBk b25lOwo+ID4gKwkvKgo+ID4gKwkgKiBMb2NhdGUgdGhlIERSTSBicmlkZ2UgZnJvbSB0aGUgRFQg bm9kZS4gRm9yIHRoZSBEUEFEIG91dHB1dHMsIGlmIHRoZQo+ID4gKwkgKiBEVCBub2RlIGhhcyBh IHNpbmdsZSBwb3J0LCBjb25zaWRlciBpdCBkZXNjcmliZXMgYSBwYW5lbCBhbmQgY3JlYXRlIGEK PiAKPiAKPiBjb25zaWRlciBpdCBhcyBkZXNjcmliaW5nPyAoaWYgaXQncyBhbiBhc3N1bXB0aW9u IHRoYXQgaGFzIGJlZW4gbWFkZSkKPiAKPiBjb25zaWRlciBpZiBpdCBkZXNjcmliZXM/IChpZiBp dCdzIGNvbmRpdGlvbmFsKQo+IAo+IEknbSBub3Qgc3VyZSBJIGZ1bGx5IHVuZGVyc3RhbmQgdGhl IGludGVudCBvZiB0aGUgc2VudGVuY2UgdG8gY29ycmVjdCBpdAo+IC0gYnV0IGl0IG5lZWRzIGEg bGl0dGxlIHR3ZWFrLiBUaGUgdXNlIG9mIHRoZSB3b3JkICdjb25zaWRlcicgbWFrZXMgbWUKPiBh c3N1bWUgdGhhdCBpdCBtaWdodCBub3QgbmVlZCBhIHBhbmVsIGJyaWRnZSwgYW5kIHNvbWUgZnVy dGhlciBkZWNpc2lvbgo+IG5lZWRzIHRvIGJlIG1hZGUsIGJ1dCB0aGUgY29kZSBsb29rcyBsaWtl IGl0IGFzc3VtZXMgb25lIHBvcnQgbWVhbnMKPiB0aGVyZSBzaG91bGQgYmUgYSBwYW5lbCAtIGFu ZCBhIGJyaWRnZSB3aWxsIGJlIGFkZGVkLgoKU2hvdWxkIEkgd3JpdGUgaXQgYXMgImFzc3VtZSB0 aGF0IGl0IC4uLiIgPyBJIGNvbnNpZGVyZWQgImNvbnNpZGVyIiBhcwpiZWluZyBsZXNzIGNvbmRp dGlvbmFsIHRoYW4gImFzc3VtZSIsIGJ1dCBJJ2xsIHRydXN0IHlvdXIganVkZ2VtZW50IG9uCnRo YXQuCgo+ID4gKwkgKiBwYW5lbCBicmlkZ2UuCj4gPiArCSAqLwo+ID4gKwlpZiAoKG91dHB1dCA9 PSBSQ0FSX0RVX09VVFBVVF9EUEFEMCB8fAo+ID4gKwkgICAgIG91dHB1dCA9PSBSQ0FSX0RVX09V VFBVVF9EUEFEMSkgJiYKPiA+ICsJICAgIHJjYXJfZHVfZW5jb2Rlcl9jb3VudF9wb3J0cyhlbmNf bm9kZSkgPT0gMSkgewo+ID4gKwkJc3RydWN0IGRybV9wYW5lbCAqcGFuZWwgPSBvZl9kcm1fZmlu ZF9wYW5lbChlbmNfbm9kZSk7Cj4gPiArCj4gPiArCQlpZiAoSVNfRVJSKHBhbmVsKSkgewo+ID4g KwkJCXJldCA9IFBUUl9FUlIocGFuZWwpOwo+ID4gKwkJCWdvdG8gZG9uZTsKPiA+ICsJCX0KPiA+ ICsKPiA+ICsJCWJyaWRnZSA9IGRldm1fZHJtX3BhbmVsX2JyaWRnZV9hZGQocmNkdS0+ZGV2LCBw YW5lbCwKPiA+ICsJCQkJCQkgICBEUk1fTU9ERV9DT05ORUNUT1JfRFBJKTsKPiA+ICsJCWlmIChJ U19FUlIoYnJpZGdlKSkgewo+ID4gKwkJCXJldCA9IFBUUl9FUlIoYnJpZGdlKTsKPiA+ICsJCQln b3RvIGRvbmU7Cj4gPiArCQl9Cj4gPiArCX0gZWxzZSB7Cj4gPiArCQlicmlkZ2UgPSBvZl9kcm1f ZmluZF9icmlkZ2UoZW5jX25vZGUpOwo+ID4gKwkJaWYgKCFicmlkZ2UpIHsKPiA+ICsJCQlyZXQg PSAtRVBST0JFX0RFRkVSOwo+ID4gKwkJCWdvdG8gZG9uZTsKPiA+ICsJCX0KPiA+ICAJfQo+ID4g IAo+ID4gIAlyZXQgPSBkcm1fZW5jb2Rlcl9pbml0KHJjZHUtPmRkZXYsIGVuY29kZXIsICZlbmNv ZGVyX2Z1bmNzLAoKLS0gClJlZ2FyZHMsCgpMYXVyZW50IFBpbmNoYXJ0Cl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QK ZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9w Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbA==