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: [v7,1/2] dmaengine: 8250_mtk_dma: add MediaTek uart DMA support From: Long Cheng Message-Id: <1545819534.28871.93.camel@mhfsdcap03> Date: Wed, 26 Dec 2018 18:18:54 +0800 To: Nicolas Boichat Cc: Vinod Koul , Randy Dunlap , Rob Herring , Mark Rutland , Ryder Lee , Sean Wang , Matthias Brugger , Dan Williams , Greg Kroah-Hartman , Jiri Slaby , Sean Wang , dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-arm Mailing List , linux-mediatek@lists.infradead.org, lkml , linux-serial@vger.kernel.org, srv_heupstream@mediatek.com, Yingjoe Chen , YT Shen , Zhenbao Liu List-ID: T24gV2VkLCAyMDE4LTEyLTI2IGF0IDE3OjI4ICswODAwLCBOaWNvbGFzIEJvaWNoYXQgd3JvdGU6 CgouLi4uLi4KCj4gPiA+ID4gPiA+ICtzdGF0aWMgaW50IG10a191YXJ0X2FwZG1hX2RldmljZV9w YXVzZShzdHJ1Y3QgZG1hX2NoYW4gKmNoYW4pCj4gPiA+ID4gPiA+ICt7Cj4gPiA+ID4gPiA+ICsg ICAgICAgLyoganVzdCBmb3IgY2hlY2sgY2FwcyBwYXNzICovCj4gPiA+ID4gPiA+ICsgICAgICAg cmV0dXJuIDA7Cj4gPiA+ID4gPiA+ICt9Cj4gPiA+ID4gPiA+ICsKPiA+ID4gPiA+ID4gK3N0YXRp YyBpbnQgbXRrX3VhcnRfYXBkbWFfZGV2aWNlX3Jlc3VtZShzdHJ1Y3QgZG1hX2NoYW4gKmNoYW4p Cj4gPiA+ID4gPiA+ICt7Cj4gPiA+ID4gPiA+ICsgICAgICAgLyoganVzdCBmb3IgY2hlY2sgY2Fw cyBwYXNzICovCj4gPiA+ID4gPiA+ICsgICAgICAgcmV0dXJuIDA7Cj4gPiA+ID4gPiA+ICt9Cj4g PiA+Cj4gPiA+IFdoeSBkbyB5b3UgbmVlZCB0aGVzZT8gU2VlbXMgd3JvbmcgdG8gYWR2ZXJ0aXNl IGRldmljZV9wYXVzZS9yZXN1bWUKPiA+ID4gKGFuZCB0aGUgY2FwcykgaWYgd2UgZG9uJ3QgYWN0 dWFsbHkgc3VwcG9ydCB0aGF0Pwo+ID4gPgo+ID4KPiA+IGluIHNlcmlhbCA4MjUwX2RtYS5jIGZp bGUsIHdoZW4gcmVxdWVzdCBETUEsIHdpbGwgY2FsbGwKPiA+ICdkbWFfZ2V0X3NsYXZlX2NhcHMn IHRvIGdldCB0aGUgY2Fwcy4gYW5kIHRoZSB3aWxsIGNoZWNrIGNhcHMuY21kX3BhdXNlLgo+ID4g dGhlIHBhdXNlIGlzIGRldmljZV9wYXVzZS4gIG91ciBkZXZpY2UgY2FuJ3Qgc3VwcG9ydCB0aGUg ZnVuY3Rpb25zLiBidXQKPiA+IHRvIGNoZWNrIHBhc3MsIG5lZWQgYWRkIHRoZSBmYWtlIGZ1bmN0 aW9uLiBvciB5b3UgY2FuIGdpdmUgYmV0dGVyCj4gPiBjb21tZW50cy4gdGhhbmtzLgo+IAo+IFdl bGwsIHRoZW4gSSBndWVzcyB0aGlzIGlzIGEgaGFjay4uLiBJJ20gbm90IHRvbyBmYW1pbGlhciB3 aXRoCj4gODI1MF9kbWEuYywgYnV0IEkgZ3Vlc3MgdGhhdCBpZiBpdCByZXF1aXJlcyBwYXVzZS9y ZXN1bWUgdG8gYmUKPiBpbXBsZW1lbnRlZCwgdGhlbiB3ZSBzaG91bGQgaW1wbGVtZW50IHRoZW0s IG5vdCBqdXN0IHN0dWIgdGhlbSBvdXQuLi4KPiAKPiBJcyB0aGlzIHNvbWV0aGluZyB0aGF0IGNh biBiZSBpbXBsZW1lbnRlZCB3aXRoIDgyNTBfbXRrIERNQT8KPiAKCnRoZSBIVyBjYW4ndCBzdXBw b3J0IGl0LgoKPiBBbHNvLCBJIGRvbid0IHNlZSB3aGVyZSB5b3UgbmVlZCByZXN1bWUsIHNvIG1h eWJlIGltcGxlbWVudGluZyBwYXVzZSBpcyBlbm91Z2g/Cj4gCgp5ZXMuIHBhdXNlIGlzIGVub3Vn aC4gZm9yIHN5bW1ldHJ5LCBhZGQgcmVzdW1lIGZ1bmN0aW9uLgphbnl3YXksIHRoZSBwYXVzZSBm dW5jdGlvbiBuZWVkIHRvIGtlZXAuCgo+ID4gPiA+ID4gPiArCj4gPiA+ID4gPiA+ICtzdGF0aWMg dm9pZCBtdGtfdWFydF9hcGRtYV9mcmVlKHN0cnVjdCBtdGtfdWFydF9hcGRtYWRldiAqbXRrZCkK PiA+ID4gPiA+ID4gK3sKPiA+ID4gPiA+ID4gKyAgICAgICB3aGlsZSAobGlzdF9lbXB0eSgmbXRr ZC0+ZGRldi5jaGFubmVscykgPT0gMCkgewo+ID4gPiA+ID4gPiArICAgICAgICAgICAgICAgc3Ry dWN0IG10a19jaGFuICpjID0gbGlzdF9maXJzdF9lbnRyeSgmbXRrZC0+ZGRldi5jaGFubmVscywK PiA+ID4gPiA+ID4gKyAgICAgICAgICAgICAgICAgICAgICAgc3RydWN0IG10a19jaGFuLCB2Yy5j aGFuLmRldmljZV9ub2RlKTsKPiA+ID4gPiA+ID4gKwo+ID4gPiA+ID4gPiArICAgICAgICAgICAg ICAgbGlzdF9kZWwoJmMtPnZjLmNoYW4uZGV2aWNlX25vZGUpOwo+ID4gPiA+ID4gPiArICAgICAg ICAgICAgICAgdGFza2xldF9raWxsKCZjLT52Yy50YXNrKTsKPiA+ID4gPiA+ID4gKyAgICAgICB9 Cj4gPiA+ID4gPiA+ICt9Cj4gPiA+ID4gPiA+ICsKPiA+ID4gPiA+ID4gK3N0YXRpYyBjb25zdCBz dHJ1Y3Qgb2ZfZGV2aWNlX2lkIG10a191YXJ0X2FwZG1hX21hdGNoW10gPSB7Cj4gPiA+ID4gPiA+ ICsgICAgICAgeyAuY29tcGF0aWJsZSA9ICJtZWRpYXRlayxtdDY1NzctdWFydC1kbWEiLCB9LAo+ ID4gPiA+ID4gPiArICAgICAgIHsgLyogc2VudGluZWwgKi8gfSwKPiA+ID4gPiA+ID4gK307Cj4g PiA+ID4gPiA+ICtNT0RVTEVfREVWSUNFX1RBQkxFKG9mLCBtdGtfdWFydF9hcGRtYV9tYXRjaCk7 Cj4gPiA+ID4gPiA+ICsKPiA+ID4gPiA+ID4gK3N0YXRpYyBpbnQgbXRrX3VhcnRfYXBkbWFfcHJv YmUoc3RydWN0IHBsYXRmb3JtX2RldmljZSAqcGRldikKPiA+ID4gPiA+ID4gK3sKPiA+ID4gPiA+ ID4gKyAgICAgICBzdHJ1Y3QgbXRrX3VhcnRfYXBkbWFkZXYgKm10a2Q7Cj4gPiA+ID4gPiA+ICsg ICAgICAgc3RydWN0IHJlc291cmNlICpyZXM7Cj4gPiA+ID4gPiA+ICsgICAgICAgc3RydWN0IG10 a19jaGFuICpjOwo+ID4gPiA+ID4gPiArICAgICAgIHVuc2lnbmVkIGludCBpOwo+ID4gPiA+ID4g PiArICAgICAgIGludCByYzsKPiA+ID4gPiA+ID4gKwoKLi4uLi4uCg==