From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [v5,2/6] dmaengine: fsl-qdma: Add qDMA controller driver for Layerscape SoCs From: Vinod Koul Message-Id: <20180529101954.GJ5666@vkoul-mobl> Date: Tue, 29 May 2018 15:49:54 +0530 To: Wen He Cc: "dmaengine@vger.kernel.org" , "robh+dt@kernel.org" , "devicetree@vger.kernel.org" , Leo Li , Jiafei Pan , Jiaheng Fan List-ID: T24gMjktMDUtMTgsIDA5OjU5LCBXZW4gSGUgd3JvdGU6Cj4gPiBPbiAyNS0wNS0xOCwgMTk6MTks IFdlbiBIZSB3cm90ZToKPiA+IAo+ID4gPiArLyoqCj4gPiA+ICsgKiBzdHJ1Y3QgZnNsX3FkbWFf Zm9ybWF0IC0gVGhpcyBpcyB0aGUgc3RydWN0IGhvbGRpbmcgZGVzY3JpYmluZyBjb21wb3VuZAo+ ID4gPiArICoJCQkgICAgZGVzY3JpcHRvciBmb3JtYXQgd2l0aCBxRE1BLgo+ID4gPiArICogQHN0 YXR1czoJCSAgICBUaGlzIGZpZWxkIHdoaWNoIGRlc2NyaWJlcyBjb21tYW5kIHN0YXR1cyBhbmQK PiA+ID4gKyAqCQkJICAgIGVucXVldWUgc3RhdHVzIG5vdGlmaWNhdGlvbi4KPiA+ID4gKyAqIEBj Zmc6CQkgICAgVGhpcyBmaWVsZCB3aGljaCBkZXNjcmliZXMgZnJhbWUgb2Zmc2V0IGFuZCBmcmFt ZQo+ID4gPiArICoJCQkgICAgZm9ybWF0Lgo+ID4gPiArICogQGFkZHJfbG86CQkgICAgVGhpcyBm aWVsZCB3aGljaCBpbmRpY2F0aW5nIHRoZSBzdGFydCBvZiB0aGUgYnVmZmVyCj4gPiA+ICsgKgkJ CSAgICBob2xkaW5nIHRoZSBjb21wb3VuZCBkZXNjcmlwdG9yIG9mIHRoZSBsb3dlciAzMi1iaXRz Cj4gPiA+ICsgKgkJCSAgICBhZGRyZXNzIGluIG1lbW9yeSA0MC1iaXQgYWRkcmVzcy4KPiA+ID4g KyAqIEBhZGRyX2hpOgkJICAgIFRoaXMgZmllbGQncyB0aGUgc2FtZSBhcyBhYm92ZSBmaWVsZCwg YnV0IHBvaW50Cj4gPiBoaWdoCj4gPiA+ICsgKgkJCSAgICA4LWJpdHMgaW4gbWVtb3J5IDQwLWJp dCBhZGRyZXNzLgo+ID4gPiArICogQF9fcmVzZXJ2ZWQxOgkgICAgUmVzZXJ2ZWQgZmllbGQuCj4g PiA+ICsgKiBAY2ZnOGJfdzE6CQkgICAgVGhpcyBmaWVsZCB3aGljaCBkZXNjcmliZXMgY29tcG91 bmQgZGVzY3JpcHRvcgo+ID4gPiArICoJCQkgICAgY29tbWFuZCBxdWV1ZSBvcmlnaW4gcHJvZHVj ZWQgYnkgcURNQSBhbmQKPiA+IGR5bmFtaWMKPiA+IAo+ID4geW91IG1heSByZW1vdmUgJ1RoaXMg ZmllbGQgd2hpY2ggZGVzY3JpYmVzJy4uLiBpbiBhYm92ZSBsaW5lcywgZ2l2ZSByZWFkZXIgbm8K PiA+IGluZm9ybWF0aW9uIDopCj4gPiAKPiAKPiBPaywgc28gSSByZW1vdmUgJ3RoaXMgZmlsZWQg d2hpY2ggZGVzY3JpYmVzJyBidXQga2VlcCB0aGUgc2Vjb25kIGhhbGYsIHJpZ2h0PwoKcmlnaHQK Cj4gPiA+ICsJZm9yIChpID0gMDsgaSA8IHF1ZXVlX251bTsgaSsrKSB7Cj4gPiA+ICsJCWlmIChx dWV1ZV9zaXplW2ldID4gRlNMX1FETUFfQ0lSQ1VMQVJfREVTQ19TSVpFX01BWAo+ID4gPiArCQkJ fHwgcXVldWVfc2l6ZVtpXSA8IEZTTF9RRE1BX0NJUkNVTEFSX0RFU0NfU0laRV9NSU4pIHsKPiA+ ID4gKwkJCWRldl9lcnIoJnBkZXYtPmRldiwgIkdldCB3cm9uZyBxdWV1ZS1zaXplcy5cbiIpOwo+ ID4gPiArCQkJcmV0dXJuIE5VTEw7Cj4gPiAKPiA+IHRoZSBpbmRlbnRzIGhlcmUgYXJlIGJhZCBm b3IgcmVhZGluZy4uCj4gPiAKPiAKPiBTbyBJIGFkZCBhIGVtcHR5IGxpbmUgaW4gaGVyZT8KCk5v LCBpbmRlbnQgb2YgdHJhaWxpbmcgY29uZGl0aW9uIGlzIHNhbWUgYXMgY29kZSBibG9jaywgdGhh dCBjYXVzZXMgY29uZnVzaW9uLAp0aGV5IHNob3VsZCBoYXZlIGRpZmZlcmVudCBpbmRlbnQKCj4g PiA+ICsJLyoKPiA+ID4gKwkgKiBDbGVhciB0aGUgY29tbWFuZCBxdWV1ZSBpbnRlcnJ1cHQgZGV0 ZWN0IHJlZ2lzdGVyIGZvciBhbGwgcXVldWVzLgo+ID4gPiArCSAqLwo+ID4gPiArCXFkbWFfd3Jp dGVsKGZzbF9xZG1hLCAweGZmZmZmZmZmLCBibG9jayArIEZTTF9RRE1BX0JDUUlEUigwKSk7Cj4g PiAKPiA+IGJ1bmNoIG9mIHdyaXRlcyB3aXRoIDB4ZmZmZmZmZmYsIGNhbiB5b3UgZXhwbGFpbiB3 aHk/IEFsc28gaGVscHMgdG8gbWFrZSBhCj4gPiBtYWNybyBmb3IgdGhpcwo+ID4gCj4gCj4gTWF5 YmUgSSBtaXNzZWQgdGhhdCBJIHNob3VsZCBkZWZpbmVkIHRoZSB2YWx1ZSB0byB0aGUgbWFjcm8g YW5kIGFkZCBjb21tZW50Lgo+IFJpZ2h0PwoKdGhhdCB3b3VsZCBoZWxwLCBidXQgd2h5IGFyZSB5 b3Ugd3JpdGluZyAweGZmZmZmZmZmIGF0IGFsbCB0aGVzZSBwbGFjZXM/Cgo+ID4gPiArc3RhdGlj IHZvaWQgZnNsX3FkbWFfaXNzdWVfcGVuZGluZyhzdHJ1Y3QgZG1hX2NoYW4gKmNoYW4pIHsKPiA+ ID4gKwlzdHJ1Y3QgZnNsX3FkbWFfY2hhbiAqZnNsX2NoYW4gPSB0b19mc2xfcWRtYV9jaGFuKGNo YW4pOwo+ID4gPiArCXN0cnVjdCBmc2xfcWRtYV9xdWV1ZSAqZnNsX3F1ZXVlID0gZnNsX2NoYW4t PnF1ZXVlOwo+ID4gPiArCXVuc2lnbmVkIGxvbmcgZmxhZ3M7Cj4gPiA+ICsKPiA+ID4gKwlzcGlu X2xvY2tfaXJxc2F2ZSgmZnNsX3F1ZXVlLT5xdWV1ZV9sb2NrLCBmbGFncyk7Cj4gPiA+ICsJc3Bp bl9sb2NrKCZmc2xfY2hhbi0+dmNoYW4ubG9jayk7Cj4gPiA+ICsJaWYgKHZjaGFuX2lzc3VlX3Bl bmRpbmcoJmZzbF9jaGFuLT52Y2hhbikpCj4gPiA+ICsJCWZzbF9xZG1hX2VucXVldWVfZGVzYyhm c2xfY2hhbik7Cj4gPiA+ICsJc3Bpbl91bmxvY2soJmZzbF9jaGFuLT52Y2hhbi5sb2NrKTsKPiA+ ID4gKwlzcGluX3VubG9ja19pcnFyZXN0b3JlKCZmc2xfcXVldWUtPnF1ZXVlX2xvY2ssIGZsYWdz KTsKPiA+IAo+ID4gd2h5IGRvIHdlIG5lZWQgdHdvIGxvY2tzLCBhbmQgc2luY2UgeW91IGFyZSBk b2luZyB2Y2hhbiB3aHkgc2hvdWxkIHlvdSBhZGQKPiA+IHlvdXIgb3duIGxvY2sgb24gdG9wCj4g PiAKPiAKPiBZZXMsIHdlIG5lZWQgdHdvIGxvY2tzLgo+IEFzIHlvdSBrbm93LCB0aGUgUURNQSBz dXBwb3J0IG11bHRpcGxlIHZpcnR1YWxpemVkIGJsb2NrcyBmb3IgbXVsdGktY29yZSBzdXBwb3J0 Lgo+IHNvIHdlIG5lZWQgdG8gbWFrZSBzdXJlIHRoYXQgbXVsaXRpLWNvcmUgYWNjZXNzIGlzc3Vl cy4KCmJ1dCB3aHkgY2FudCB5b3UgdXNlIHZjaGFuIGxvY2sgZm9yIGFsbD8K