From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robin Murphy Subject: Re: [PATCH v4 4/7] of: address: Add support for the parent DMA bus Date: Wed, 27 Mar 2019 12:46:43 +0000 Message-ID: <077b2e22-eb0d-8a0a-1e47-7dd078da1438@arm.com> References: <1ed042a4c5b8c13c6692e12b2d630d75effbb90a.1552595146.git-series.maxime.ripard@bootlin.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1ed042a4c5b8c13c6692e12b2d630d75effbb90a.1552595146.git-series.maxime.ripard@bootlin.com> Content-Language: en-GB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Maxime Ripard , Mark Rutland , Rob Herring , Frank Rowand , Chen-Yu Tsai Cc: devicetree@vger.kernel.org, Thomas Petazzoni , Arnd Bergmann , dri-devel@lists.freedesktop.org, Georgi Djakov , Paul Kocialkowski , Yong Deng , Dave Martin , linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org T24gMTQvMDMvMjAxOSAyMDoyNiwgTWF4aW1lIFJpcGFyZCB3cm90ZToKPiBTb21lIFNvQ3MgaGF2 ZSBkZXZpY2VzIHRoYXQgYXJlIHVzaW5nIGEgc2VwYXJhdGUgYnVzIGZyb20gdGhlIG1haW4gYnVz IHRvCj4gcGVyZm9ybSBETUEuCj4gCj4gVGhlc2UgYnVzZXMgbWlnaHQgaGF2ZSBzb21lIHJlc3Ry aWN0aW9ucyBhbmQvb3IgZGlmZmVyZW50IG1hcHBpbmcgdGhhbiBmcm9tCj4gdGhlIENQVSBzaWRl LCBzbyB3ZSdkIG5lZWQgdG8gZXhwcmVzcyB0aG9zZSB1c2luZyB0aGUgdXN1YWwgZG1hLXJhbmdl cywgYnV0Cj4gdXNpbmcgYSBkaWZmZXJlbnQgRFQgbm9kZSB0aGFuIHRoZSBub2RlJ3MgcGFyZW50 Lgo+IAo+IE5vdyB0aGF0IHRoZSBnZW5lcmljIGludGVyY29ubmVjdCBiaW5kaW5ncyBhcmUgYXZh aWxhYmxlLCB3ZSBjYW4gbW9kZWwgYW4KPiBpbnRlcmNvbm5lY3Qgd2l0aCB0aGUgcmVzZXJ2ZWQg bmFtZSAiZG1hIiBmb3IgdGhvc2UgdXNlLWNhc2VzLgoKTml0OiBpdCdzICJkbWEtbWVtIiBub3cu Cgo+IFNpZ25lZC1vZmYtYnk6IE1heGltZSBSaXBhcmQgPG1heGltZS5yaXBhcmRAYm9vdGxpbi5j b20+Cj4gLS0tCj4gICBkcml2ZXJzL29mL2FkZHJlc3MuYyB8IDI5ICsrKysrKysrKysrKysrKysr KysrKysrKysrLS0tCj4gICAxIGZpbGUgY2hhbmdlZCwgMjYgaW5zZXJ0aW9ucygrKSwgMyBkZWxl dGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9vZi9hZGRyZXNzLmMgYi9kcml2ZXJz L29mL2FkZHJlc3MuYwo+IGluZGV4IDE0MGJkMDcxODA2Ny4uOTVlNDdmMmU5MTk4IDEwMDY0NAo+ IC0tLSBhL2RyaXZlcnMvb2YvYWRkcmVzcy5jCj4gKysrIGIvZHJpdmVycy9vZi9hZGRyZXNzLmMK PiBAQCAtNjc4LDE0ICs2NzgsMzEgQEAgdTY0IG9mX3RyYW5zbGF0ZV9hZGRyZXNzKHN0cnVjdCBk ZXZpY2Vfbm9kZSAqZGV2LCBjb25zdCBfX2JlMzIgKmluX2FkZHIpCj4gICB9Cj4gICBFWFBPUlRf U1lNQk9MKG9mX3RyYW5zbGF0ZV9hZGRyZXNzKTsKPiAgIAo+ICtzdGF0aWMgc3RydWN0IGRldmlj ZV9ub2RlICpfX29mX2dldF9kbWFfcGFyZW50KGNvbnN0IHN0cnVjdCBkZXZpY2Vfbm9kZSAqbnAp Cj4gK3sKPiArCXN0cnVjdCBvZl9waGFuZGxlX2FyZ3MgYXJnczsKPiArCWludCByZXQsIGluZGV4 Owo+ICsKPiArCWluZGV4ID0gb2ZfcHJvcGVydHlfbWF0Y2hfc3RyaW5nKG5wLCAiaW50ZXJjb25u ZWN0LW5hbWVzIiwgImRtYS1tZW0iKTsKPiArCWlmIChpbmRleCA8IDApCj4gKwkJcmV0dXJuIG9m X2dldF9wYXJlbnQobnApOwo+ICsKPiArCXJldCA9IG9mX3BhcnNlX3BoYW5kbGVfd2l0aF9hcmdz KG5wLCAiaW50ZXJjb25uZWN0cyIsCj4gKwkJCQkJICIjaW50ZXJjb25uZWN0LWNlbGxzIiwKPiAr CQkJCQkgaW5kZXgsICZhcmdzKTsKPiArCWlmIChyZXQgPCAwKQo+ICsJCXJldHVybiBvZl9nZXRf cGFyZW50KG5wKTsKPiArCj4gKwlyZXR1cm4gb2Zfbm9kZV9nZXQoYXJncy5ucCk7Cj4gK30KPiAr Cj4gICB1NjQgb2ZfdHJhbnNsYXRlX2RtYV9hZGRyZXNzKHN0cnVjdCBkZXZpY2Vfbm9kZSAqZGV2 LCBjb25zdCBfX2JlMzIgKmluX2FkZHIpCj4gICB7Cj4gICAJc3RydWN0IGRldmljZV9ub2RlICpo b3N0Owo+ICAgCXU2NCByZXQ7Cj4gICAKPiAtCXJldCA9IF9fb2ZfdHJhbnNsYXRlX2FkZHJlc3Mo ZGV2LCBvZl9nZXRfcGFyZW50LAo+ICsJcmV0ID0gX19vZl90cmFuc2xhdGVfYWRkcmVzcyhkZXYs IF9fb2ZfZ2V0X2RtYV9wYXJlbnQsCj4gICAJCQkJICAgICBpbl9hZGRyLCAiZG1hLXJhbmdlcyIs ICZob3N0KTsKPiAtCgpOaXQ6IGlkZWFsbHkgcGF0Y2ggIzMgd291bGRuJ3QgaW50cm9kdWNlIHRo YXQgYmxhbmsgbGluZSBpbiB0aGUgZmlyc3QgcGxhY2UuCgpPdGhlcndpc2UsCgpSZXZpZXdlZC1i eTogUm9iaW4gTXVycGh5IDxyb2Jpbi5tdXJwaHlAYXJtLmNvbT4KCj4gICAJaWYgKGhvc3QpIHsK PiAgIAkJb2Zfbm9kZV9wdXQoaG9zdCk7Cj4gICAJCXJldHVybiBPRl9CQURfQUREUjsKPiBAQCAt OTEzLDkgKzkzMCwxNSBAQCBpbnQgb2ZfZG1hX2dldF9yYW5nZShzdHJ1Y3QgZGV2aWNlX25vZGUg Km5wLCB1NjQgKmRtYV9hZGRyLCB1NjQgKnBhZGRyLCB1NjQgKnNpego+ICAgCQlyZXR1cm4gLUVJ TlZBTDsKPiAgIAo+ICAgCXdoaWxlICgxKSB7Cj4gKwkJc3RydWN0IGRldmljZV9ub2RlICpwYXJl bnQ7Cj4gKwo+ICAgCQluYWRkciA9IG9mX25fYWRkcl9jZWxscyhub2RlKTsKPiAgIAkJbnNpemUg PSBvZl9uX3NpemVfY2VsbHMobm9kZSk7Cj4gLQkJbm9kZSA9IG9mX2dldF9uZXh0X3BhcmVudChu b2RlKTsKPiArCj4gKwkJcGFyZW50ID0gX19vZl9nZXRfZG1hX3BhcmVudChub2RlKTsKPiArCQlv Zl9ub2RlX3B1dChub2RlKTsKPiArCj4gKwkJbm9kZSA9IHBhcmVudDsKPiAgIAkJaWYgKCFub2Rl KQo+ICAgCQkJYnJlYWs7Cj4gICAKPiAKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJl ZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGlu Zm8vZHJpLWRldmVs