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: [RFC,2/5] dmaengine: Add function to request slave channel from a dma_device From: Peter Ujfalusi Message-Id: <2cafdbd7-6057-487a-2c11-5d6620135e2c@ti.com> Date: Fri, 12 Oct 2018 15:07:49 +0300 To: Vinod Cc: dan.j.williams@intel.com, dmaengine@vger.kernel.org, grygorii.strashko@ti.com List-ID: T24gMjAxOC0xMC0wOSAxNDoyMiwgUGV0ZXIgVWpmYWx1c2kgd3JvdGU6Cj4gCj4gCj4gT24gMjAx OC0xMC0wOSAxMzo0OSwgVmlub2Qgd3JvdGU6Cj4+IE9uIDI0LTA5LTE4LCAxNjowMCwgUGV0ZXIg VWpmYWx1c2kgd3JvdGU6Cj4+PiBkbWFfZ2V0X2FueV9zbGF2ZV9jaGFubmVsKCkgd291bGQgc2tp cCB1c2luZyB0aGUgZmlsdGVyIGZ1bmN0aW9uLCB3aGljaAo+Pj4gaW4gc29tZSBjYXNlcyBuZWVk ZWQgdG8gYmUgZXhlY3V0ZWQgYmVmb3JlIHRoZSBhbGxvY19jaGFuX3Jlc291cmNlcwo+Pj4gY2Fs bGJhY2sgdG8gbWFrZSBzdXJlIHRoYXQgYWxsIHBhcmFtZXRlcnMgYXJlIHByb3ZpZGVkIGZvciB0 aGUgc2xhdmUKPj4+IGNoYW5uZWwuCj4+Cj4+IEFub3RoZXIgcmVxdWVzdCBBUEksIGkgdGhvdWdo IHlvdSBoYWQgc29sdmVkIHRoYXQgbGFzdCB0aW1lIGFyb3VuZCA6KAo+IAo+IFllcywgSSB0aG91 Z2h0IHNvLCBidXQgdGhpcyB0aW1lIGl0IGlzIGRpZmZlcmVudC4KPiBJIHdhbnQgdG8gZHJvcCB0 aGlzIHBhdGNoIG15c2VsZiBhbHNvLCBidXQgSSBuZWVkIHRvIGZpZ3VyZSBvdXQgYSB3YXkgdG8K PiBkbyB3aGF0IHRoZSBkbWFkZXZfZ2V0X3NsYXZlX2NoYW5uZWwoKSBhbGxvd3MgbWUgdG8gZG8u Cj4gCj4gSW4gcGF0aCA0LCB1ZG1hX29mX3hsYXRlKCkgYW5kIHRoZSB1ZG1hX2RtYV9maWx0ZXJf Zm4oKQo+IAo+IEl0IG1pZ2h0IGJlIHBvc3NpYmxlIHRoYXQgSSBsb29rIHVwIGEgZnJlZSB1ZG1h X2NoYW4sIGRvIHRoZSBzZXR1cCB2aWEKPiB0aGUgZmlsdGVyX2ZuKCkgYW5kIGZpbmFsbHkgY2Fs bCB0aGUgZG1hX2dldF9zbGF2ZV9jaGFubmVsKCkuCj4gTWlnaHQgd29yayBmaW5lLCBidXQgSSB3 YW50ZWQgdG8gYXZvaWQgdG8gaW1wbGVtZW50IG15IG93biBmaW5kIGZyZWUKPiBjaGFubmVsIGNv ZGUgd2hlbiB3ZSBoYXZlIGl0IGFscmVhZHkgaW4gRE1BZW5naW5lIGNvcmUuCgpJdCBpcyBnb2lu ZyB0byBiZSByYWN5IGFnYWluc3QgcGFyYWxsZWwgY2hhbm5lbCByZXF1ZXN0cywgYnV0Cgo+Pj4g ZGlmZiAtLWdpdCBhL2luY2x1ZGUvbGludXgvZG1hZW5naW5lLmggYi9pbmNsdWRlL2xpbnV4L2Rt YWVuZ2luZS5oCj4+PiBpbmRleCAxNmM5ZDAyMTk4OGEuLjMyMDEwYzZhZTEzYSAxMDA2NDQKPj4+ IC0tLSBhL2luY2x1ZGUvbGludXgvZG1hZW5naW5lLmgKPj4+ICsrKyBiL2luY2x1ZGUvbGludXgv ZG1hZW5naW5lLmgKPj4+IEBAIC0xNTQyLDYgKzE1NDIsOCBAQCB2b2lkIGRtYV9hc3luY19kZXZp Y2VfdW5yZWdpc3RlcihzdHJ1Y3QgZG1hX2RldmljZSAqZGV2aWNlKTsKPj4+ICB2b2lkIGRtYV9y dW5fZGVwZW5kZW5jaWVzKHN0cnVjdCBkbWFfYXN5bmNfdHhfZGVzY3JpcHRvciAqdHgpOwo+Pj4g IHN0cnVjdCBkbWFfY2hhbiAqZG1hX2dldF9zbGF2ZV9jaGFubmVsKHN0cnVjdCBkbWFfY2hhbiAq Y2hhbik7Cj4+PiAgc3RydWN0IGRtYV9jaGFuICpkbWFfZ2V0X2FueV9zbGF2ZV9jaGFubmVsKHN0 cnVjdCBkbWFfZGV2aWNlICpkZXZpY2UpOwo+Pj4gK3N0cnVjdCBkbWFfY2hhbiAqZG1hZGV2X2dl dF9zbGF2ZV9jaGFubmVsKHN0cnVjdCBkbWFfZGV2aWNlICpkZXZpY2UsCj4+PiArCQkJCQkgIGRt YV9maWx0ZXJfZm4gZm4sIHZvaWQgKmZuX3BhcmFtKTsKCi1zdHJ1Y3QgZG1hX2NoYW4gKmRtYV9n ZXRfYW55X3NsYXZlX2NoYW5uZWwoc3RydWN0IGRtYV9kZXZpY2UgKmRldmljZSk7CitzdHJ1Y3Qg ZG1hX2NoYW4gKmRtYWRldl9nZXRfc2xhdmVfY2hhbm5lbChzdHJ1Y3QgZG1hX2RldmljZSAqZGV2 aWNlLAogCQkJCWRtYV9maWx0ZXJfZm4gZm4sIHZvaWQgKmZuX3BhcmFtKTsKKyNkZWZpbmUgZG1h X2dldF9hbnlfc2xhdmVfY2hhbm5lbChkZXZpY2UpXAoJIGRtYWRldl9nZXRfc2xhdmVfY2hhbm5l bChkZXZpY2UsIE5VTEwsIE5VTEwpCgpTaG91bGQgY3V0IGRvd24gb24gZHVwbGljYXRlZCBjb2Rl IGF0IGxlYXN0LgoKCj4+PiAgI2RlZmluZSBkbWFfcmVxdWVzdF9jaGFubmVsKG1hc2ssIHgsIHkp IF9fZG1hX3JlcXVlc3RfY2hhbm5lbCgmKG1hc2spLCB4LCB5KQo+Pj4gICNkZWZpbmUgZG1hX3Jl cXVlc3Rfc2xhdmVfY2hhbm5lbF9jb21wYXQobWFzaywgeCwgeSwgZGV2LCBuYW1lKSBcCj4+PiAg CV9fZG1hX3JlcXVlc3Rfc2xhdmVfY2hhbm5lbF9jb21wYXQoJihtYXNrKSwgeCwgeSwgZGV2LCBu YW1lKQo+Pj4gLS0gCj4+PiBQZXRlcgo+Pj4KPj4+IFRleGFzIEluc3RydW1lbnRzIEZpbmxhbmQg T3ksIFBvcmtrYWxhbmthdHUgMjIsIDAwMTgwIEhlbHNpbmtpLgo+Pj4gWS10dW5udXMvQnVzaW5l c3MgSUQ6IDA2MTU1MjEtNC4gS290aXBhaWtrYS9Eb21pY2lsZTogSGVsc2lua2kKPj4KPiAKPiAt IFDDqXRlcgo+IAo+IFRleGFzIEluc3RydW1lbnRzIEZpbmxhbmQgT3ksIFBvcmtrYWxhbmthdHUg MjIsIDAwMTgwIEhlbHNpbmtpLgo+IFktdHVubnVzL0J1c2luZXNzIElEOiAwNjE1NTIxLTQuIEtv dGlwYWlra2EvRG9taWNpbGU6IEhlbHNpbmtpCj4gCgotIFDDqXRlcgoKVGV4YXMgSW5zdHJ1bWVu dHMgRmlubGFuZCBPeSwgUG9ya2thbGFua2F0dSAyMiwgMDAxODAgSGVsc2lua2kuClktdHVubnVz L0J1c2luZXNzIElEOiAwNjE1NTIxLTQuIEtvdGlwYWlra2EvRG9taWNpbGU6IEhlbHNpbmtpCg==