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: [v2,2/2] dmaengine: sprd: Add Spreadtrum DMA configuration From: Vinod Koul Message-Id: <20180511115306.GC30118@vkoul-mobl> Date: Fri, 11 May 2018 17:23:06 +0530 To: Baolin Wang Cc: Dan Williams , Eric Long , Mark Brown , Lars-Peter Clausen , dmaengine@vger.kernel.org, LKML List-ID: T24gMTEtMDUtMTgsIDE5OjQ0LCBCYW9saW4gV2FuZyB3cm90ZToKPiBIaSBWaW5vZCwKPiAKPiBP biAxMSBNYXkgMjAxOCBhdCAxOToyMiwgVmlub2QgS291bCA8dmtvdWxAa2VybmVsLm9yZz4gd3Jv dGU6Cj4gPiBPbiAwOS0wNS0xOCwgMTk6MTIsIEJhb2xpbiBXYW5nIHdyb3RlOgo+ID4KPiA+PiAr LyoKPiA+PiArICogc3RydWN0IHNwcmRfZG1hX2NvbmZpZyAtIERNQSBjb25maWd1cmF0aW9uIHN0 cnVjdHVyZQo+ID4+ICsgKiBAY2ZnOiBkbWEgc2xhdmUgY2hhbm5lbCBydW50aW1lIGNvbmZpZwo+ ID4+ICsgKiBAc3JjX2FkZHI6IHRoZSBzb3VyY2UgcGh5c2ljYWwgYWRkcmVzcwo+ID4+ICsgKiBA ZHN0X2FkZHI6IHRoZSBkZXN0aW5hdGlvbiBwaHlzaWNhbCBhZGRyZXNzCj4gPj4gKyAqIEBibG9j a19sZW46IHNwZWNpZnkgb25lIGJsb2NrIHRyYW5zZmVyIGxlbmd0aAo+ID4+ICsgKiBAdHJhbnNj YXRpb25fbGVuOiBzcGVjaWZ5IG9uZSB0cmFuc2NhdGlvbiB0cmFuc2ZlciBsZW5ndGgKPiA+PiAr ICogQHNyY19zdGVwOiBzb3VyY2UgdHJhbnNmZXIgc3RlcAo+ID4+ICsgKiBAZHN0X3N0ZXA6IGRl c3RpbmF0aW9uIHRyYW5zZmVyIHN0ZXAKPiA+PiArICogQHdyYXBfcHRyOiB3cmFwIHBvaW50ZXIg YWRkcmVzcywgb25jZSB0aGUgdHJhbnNmZXIgYWRkcmVzcyByZWFjaGVzIHRoZQo+ID4+ICsgKiAn d3JhcF9wdHInLCB0aGUgbmV4dCB0cmFuc2ZlciBhZGRyZXNzIHdpbGwganVtcCB0byB0aGUgJ3dy YXBfdG8nIGFkZHJlc3MuCj4gPj4gKyAqIEB3cmFwX3RvOiB3cmFwIGp1bXAgdG8gYWRkcmVzcwo+ ID4+ICsgKiBAcmVxX21vZGU6IHNwZWNpZnkgdGhlIERNQSByZXF1ZXN0IG1vZGUKPiA+PiArICog QGludF9tb2RlOiBzcGVjaWZ5IHRoZSBETUEgaW50ZXJydXB0IHR5cGUKPiA+PiArICovCj4gPj4g K3N0cnVjdCBzcHJkX2RtYV9jb25maWcgewo+ID4+ICsgICAgIHN0cnVjdCBkbWFfc2xhdmVfY29u ZmlnIGNmZzsKPiA+PiArICAgICBwaHlzX2FkZHJfdCBzcmNfYWRkcjsKPiA+PiArICAgICBwaHlz X2FkZHJfdCBkc3RfYWRkcjsKPiA+Cj4gPiB0aGVzZSBhcmUgYWxyZWFkeSBpbiBjZmcgc28gd2h5 IGR1cGxpY2F0ZSwgc2FtZSBmb3IgZmV3IG1vcmUgaGVyZS4KPiAKPiBXZSBzYXZlIHRoZW0gaW4g J3N0cnVjdCBzcHJkX2RtYV9jb25maWcnIGFzIG9uZSBwYXJhbWV0ZXIgZm9yCj4gc3ByZF9kbWFf Y29uZmlnKCksIG90aGVyd2lzZSB3ZSBuZWVkIGFkZCAyIG1vcmUgcGFyYW1ldGVycyAoc3JjIGFu ZAo+IGRzdCkgZm9yIHNwcmRfZG1hX2NvbmZpZygpLgoKSSBhbSBub3Qgc3VyZSBJIGZvbGxvdy4u LgoKSSBtZWFudCB5b3UgY2FuIHVzZSBzcHJkX2RtYV9jb25maWcuY2ZnLT5zcmNfYWRkci9kc3Rf YWRkciBhbmQgcmVtb3ZlIHNyY19hZGRyICYKZHN0X2FkZHIgaW4gdGhlIHNwcmRfZG1hX2NvbmZp Zy4gSXQgZHVwbGljYXRlLi4KClNhbWUgZm9yIGZldyBtb3JlIHBhcmFtcy4uLgoKPiA+PiArICAg ICBpZiAoIWlzX3NsYXZlX2RpcmVjdGlvbihkaXIpIHx8IHNnbGVuID4gMSkKPiA+PiArICAgICAg ICAgICAgIHJldHVybiBOVUxMOwo+ID4+ICsKPiA+PiArICAgICBzZGVzYyA9IGt6YWxsb2Moc2l6 ZW9mKCpzZGVzYyksIEdGUF9OT1dBSVQpOwo+ID4+ICsgICAgIGlmICghc2Rlc2MpCj4gPj4gKyAg ICAgICAgICAgICByZXR1cm4gTlVMTDsKPiA+PiArCj4gPj4gKyAgICAgZm9yX2VhY2hfc2coc2ds LCBzZywgc2dsZW4sIGkpIHsKPiA+PiArICAgICAgICAgICAgIGlmIChkaXIgPT0gRE1BX01FTV9U T19ERVYpIHsKPiA+PiArICAgICAgICAgICAgICAgICAgICAgc2xhdmVfY2ZnLT5zcmNfYWRkciA9 IHNnX2RtYV9hZGRyZXNzKHNnKTsKPiA+PiArICAgICAgICAgICAgICAgICAgICAgc2xhdmVfY2Zn LT5kc3RfYWRkciA9IHNsYXZlX2NmZy0+Y2ZnLmRzdF9hZGRyOwo+ID4+ICsgICAgICAgICAgICAg ICAgICAgICBzbGF2ZV9jZmctPnNyY19zdGVwID0KPiA+PiArICAgICAgICAgICAgICAgICAgICAg c3ByZF9kbWFfZ2V0X3N0ZXAoc2xhdmVfY2ZnLT5jZmcuc3JjX2FkZHJfd2lkdGgpOwo+ID4+ICsg ICAgICAgICAgICAgICAgICAgICBzbGF2ZV9jZmctPmRzdF9zdGVwID0gU1BSRF9ETUFfTk9ORV9T VEVQOwo+ID4+ICsgICAgICAgICAgICAgfSBlbHNlIHsKPiA+PiArICAgICAgICAgICAgICAgICAg ICAgc2xhdmVfY2ZnLT5zcmNfYWRkciA9IHNsYXZlX2NmZy0+Y2ZnLnNyY19hZGRyOwo+ID4+ICsg ICAgICAgICAgICAgICAgICAgICBzbGF2ZV9jZmctPmRzdF9hZGRyID0gc2dfZG1hX2FkZHJlc3Mo c2cpOwo+ID4+ICsgICAgICAgICAgICAgICAgICAgICBzbGF2ZV9jZmctPnNyY19zdGVwID0gU1BS RF9ETUFfTk9ORV9TVEVQOwo+ID4+ICsgICAgICAgICAgICAgICAgICAgICBzbGF2ZV9jZmctPmRz dF9zdGVwID0KPiA+PiArICAgICAgICAgICAgICAgICAgICAgc3ByZF9kbWFfZ2V0X3N0ZXAoc2xh dmVfY2ZnLT5jZmcuZHN0X2FkZHJfd2lkdGgpOwo+ID4KPiA+IHVzZSBhIGhlbHBlciBmb3IgZmls bGluZyB0aGlzIGFuZCBwYXNzaW5nIHJpZ2h0IHZhbHVlcyBmb3IgZWFjaCBjYXNlPwo+IAo+IFdl IG5lZWQgcGFzcyBtYW55IHZhbHVlcyB0byB0aGlzIGhlbHBlciwgYnV0IHdpbGwgdHJ5LiBUaGFu a3MuCgpJIHRoaW5rIDUgYW5kIHRoYXQgbWF5IGhlbHAgdG8gbG9vayBpdCBiZXR0ZXIgOikK