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: <20180924130021.20530-3-peter.ujfalusi@ti.com> Date: Mon, 24 Sep 2018 16:00:18 +0300 To: vkoul@kernel.org, dan.j.williams@intel.com Cc: dmaengine@vger.kernel.org, grygorii.strashko@ti.com List-ID: ZG1hX2dldF9hbnlfc2xhdmVfY2hhbm5lbCgpIHdvdWxkIHNraXAgdXNpbmcgdGhlIGZpbHRlciBm dW5jdGlvbiwgd2hpY2gKaW4gc29tZSBjYXNlcyBuZWVkZWQgdG8gYmUgZXhlY3V0ZWQgYmVmb3Jl IHRoZSBhbGxvY19jaGFuX3Jlc291cmNlcwpjYWxsYmFjayB0byBtYWtlIHN1cmUgdGhhdCBhbGwg cGFyYW1ldGVycyBhcmUgcHJvdmlkZWQgZm9yIHRoZSBzbGF2ZQpjaGFubmVsLgoKU2lnbmVkLW9m Zi1ieTogUGV0ZXIgVWpmYWx1c2kgPHBldGVyLnVqZmFsdXNpQHRpLmNvbT4KLS0tCiBkcml2ZXJz L2RtYS9kbWFlbmdpbmUuYyAgIHwgMjAgKysrKysrKysrKysrKysrKysrKysKIGluY2x1ZGUvbGlu dXgvZG1hZW5naW5lLmggfCAgMiArKwogMiBmaWxlcyBjaGFuZ2VkLCAyMiBpbnNlcnRpb25zKCsp CgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9kbWEvZG1hZW5naW5lLmMgYi9kcml2ZXJzL2RtYS9kbWFl bmdpbmUuYwppbmRleCAyN2I2ZDdjMmQ4YTAuLmI4MGYxYmRkODgxMyAxMDA2NDQKLS0tIGEvZHJp dmVycy9kbWEvZG1hZW5naW5lLmMKKysrIGIvZHJpdmVycy9kbWEvZG1hZW5naW5lLmMKQEAgLTYz NCw2ICs2MzQsMjYgQEAgc3RydWN0IGRtYV9jaGFuICpkbWFfZ2V0X2FueV9zbGF2ZV9jaGFubmVs KHN0cnVjdCBkbWFfZGV2aWNlICpkZXZpY2UpCiB9CiBFWFBPUlRfU1lNQk9MX0dQTChkbWFfZ2V0 X2FueV9zbGF2ZV9jaGFubmVsKTsKIAorc3RydWN0IGRtYV9jaGFuICpkbWFkZXZfZ2V0X3NsYXZl X2NoYW5uZWwoc3RydWN0IGRtYV9kZXZpY2UgKmRldmljZSwKKwkJCQkJICBkbWFfZmlsdGVyX2Zu IGZuLCB2b2lkICpmbl9wYXJhbSkKK3sKKwlkbWFfY2FwX21hc2tfdCBtYXNrOworCXN0cnVjdCBk bWFfY2hhbiAqY2hhbjsKKworCWRtYV9jYXBfemVybyhtYXNrKTsKKwlkbWFfY2FwX3NldChETUFf U0xBVkUsIG1hc2spOworCisJLyogbG9jayBhZ2FpbnN0IF9fZG1hX3JlcXVlc3RfY2hhbm5lbCAq LworCW11dGV4X2xvY2soJmRtYV9saXN0X211dGV4KTsKKworCWNoYW4gPSBmaW5kX2NhbmRpZGF0 ZShkZXZpY2UsICZtYXNrLCBmbiwgZm5fcGFyYW0pOworCisJbXV0ZXhfdW5sb2NrKCZkbWFfbGlz dF9tdXRleCk7CisKKwlyZXR1cm4gSVNfRVJSKGNoYW4pID8gTlVMTCA6IGNoYW47Cit9CitFWFBP UlRfU1lNQk9MX0dQTChkbWFkZXZfZ2V0X3NsYXZlX2NoYW5uZWwpOworCiAvKioKICAqIF9fZG1h X3JlcXVlc3RfY2hhbm5lbCAtIHRyeSB0byBhbGxvY2F0ZSBhbiBleGNsdXNpdmUgY2hhbm5lbAog ICogQG1hc2s6IGNhcGFiaWxpdGllcyB0aGF0IHRoZSBjaGFubmVsIG11c3Qgc2F0aXNmeQpkaWZm IC0tZ2l0IGEvaW5jbHVkZS9saW51eC9kbWFlbmdpbmUuaCBiL2luY2x1ZGUvbGludXgvZG1hZW5n aW5lLmgKaW5kZXggMTZjOWQwMjE5ODhhLi4zMjAxMGM2YWUxM2EgMTAwNjQ0Ci0tLSBhL2luY2x1 ZGUvbGludXgvZG1hZW5naW5lLmgKKysrIGIvaW5jbHVkZS9saW51eC9kbWFlbmdpbmUuaApAQCAt MTU0Miw2ICsxNTQyLDggQEAgdm9pZCBkbWFfYXN5bmNfZGV2aWNlX3VucmVnaXN0ZXIoc3RydWN0 IGRtYV9kZXZpY2UgKmRldmljZSk7CiB2b2lkIGRtYV9ydW5fZGVwZW5kZW5jaWVzKHN0cnVjdCBk bWFfYXN5bmNfdHhfZGVzY3JpcHRvciAqdHgpOwogc3RydWN0IGRtYV9jaGFuICpkbWFfZ2V0X3Ns YXZlX2NoYW5uZWwoc3RydWN0IGRtYV9jaGFuICpjaGFuKTsKIHN0cnVjdCBkbWFfY2hhbiAqZG1h X2dldF9hbnlfc2xhdmVfY2hhbm5lbChzdHJ1Y3QgZG1hX2RldmljZSAqZGV2aWNlKTsKK3N0cnVj dCBkbWFfY2hhbiAqZG1hZGV2X2dldF9zbGF2ZV9jaGFubmVsKHN0cnVjdCBkbWFfZGV2aWNlICpk ZXZpY2UsCisJCQkJCSAgZG1hX2ZpbHRlcl9mbiBmbiwgdm9pZCAqZm5fcGFyYW0pOwogI2RlZmlu ZSBkbWFfcmVxdWVzdF9jaGFubmVsKG1hc2ssIHgsIHkpIF9fZG1hX3JlcXVlc3RfY2hhbm5lbCgm KG1hc2spLCB4LCB5KQogI2RlZmluZSBkbWFfcmVxdWVzdF9zbGF2ZV9jaGFubmVsX2NvbXBhdCht YXNrLCB4LCB5LCBkZXYsIG5hbWUpIFwKIAlfX2RtYV9yZXF1ZXN0X3NsYXZlX2NoYW5uZWxfY29t cGF0KCYobWFzayksIHgsIHksIGRldiwgbmFtZSkK