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: [v5,4/7] dmaengine: xilinx_dma: program hardware supported buffer length From: Vinod Koul Message-Id: <20180918162508.GD2613@vkoul-mobl> Date: Tue, 18 Sep 2018 09:25:08 -0700 To: Andrea Merello Cc: dan.j.williams@intel.com, michal.simek@xilinx.com, appana.durga.rao@xilinx.com, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, devicetree@vger.kernel.org, radhey.shyam.pandey@xilinx.com List-ID: T24gMDctMDktMTgsIDA4OjI0LCBBbmRyZWEgTWVyZWxsbyB3cm90ZToKPiBGcm9tOiBSYWRoZXkg U2h5YW0gUGFuZGV5IDxyYWRoZXkuc2h5YW0ucGFuZGV5QHhpbGlueC5jb20+Cj4gCj4gQVhJLURN QSBJUCBzdXBwb3J0cyBjb25maWd1cmFibGUgKGNfc2dfbGVuZ3RoX3dpZHRoKSBidWZmZXIgbGVu Z3RoCj4gcmVnaXN0ZXIgd2lkdGgsIGhlbmNlIHJlYWQgYnVmZmVyIGxlbmd0aCAoeGxueCxzZy1s ZW5ndGgtd2lkdGgpIERUCj4gcHJvcGVydHkgYW5kIGVuc3VyZSB0aGF0IGRyaXZlciBkb2Vzbid0 IHByb2dyYW0gYnVmZmVyIGxlbmd0aAo+IGV4Y2VlZGluZyB0aGUgc3VwcG9ydGVkIGxpbWl0LiBG b3IgVkRNQSBhbmQgQ0RNQSB0aGVyZSBpcyBubyBjaGFuZ2UuCj4gCj4gQ2M6IFJvYiBIZXJyaW5n IDxyb2JoK2R0QGtlcm5lbC5vcmc+Cj4gQ2M6IE1hcmsgUnV0bGFuZCA8bWFyay5ydXRsYW5kQGFy bS5jb20+Cj4gQ2M6IGRldmljZXRyZWVAdmdlci5rZXJuZWwub3JnCj4gU2lnbmVkLW9mZi1ieTog UmFkaGV5IFNoeWFtIFBhbmRleSA8cmFkaGV5LnNoeWFtLnBhbmRleUB4aWxpbnguY29tPgo+IFNp Z25lZC1vZmYtYnk6IE1pY2hhbCBTaW1layA8bWljaGFsLnNpbWVrQHhpbGlueC5jb20+Cj4gU2ln bmVkLW9mZi1ieTogQW5kcmVhIE1lcmVsbG8gPGFuZHJlYS5tZXJlbGxvQGdtYWlsLmNvbT4gW3Jl YmFzZSwgcmV3b3JkXQo+IC0tLQo+IENoYW5nZXMgaW4gdjI6Cj4gICAgICAgICAtIGRyb3Agb3Jp Z2luYWwgcGF0Y2ggYW5kIHJlcGxhY2Ugd2l0aCB0aGUgb25lIGluIFhpbGlueCB0cmVlCj4gQ2hh bmdlcyBpbiB2MzoKPiAJLSBjYyBEVCBtYWludGFpbmVycy9NTAo+IENoYW5nZXMgaW4gdjQ6Cj4g CS0gdXBwZXIgYm91bmQgZm9yIHRoZSBwcm9wZXJ0eSBzaG91bGQgYmUgMjYsIG5vdCAyMwo+IAkt IGFkZCB3YXJuIGZvciB3aWR0aCA+IDIzIGFzIHBlciB4aWxpbnggb3JpZ2luYWwgcGF0Y2gKPiAJ LSByZXdvcmsgZHVlIHRvIGNoYW5nZXMgaW50cm9kdWNlZCBpbiAxLzYKPiBDaGFuZ2VzIGluIHY1 Ogo+IAlOb25lCj4gLS0tCj4gIGRyaXZlcnMvZG1hL3hpbGlueC94aWxpbnhfZG1hLmMgfCAzNiAr KysrKysrKysrKysrKysrKysrKysrKysrLS0tLS0tLS0KPiAgMSBmaWxlIGNoYW5nZWQsIDI4IGlu c2VydGlvbnMoKyksIDggZGVsZXRpb25zKC0pCj4gCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZG1h L3hpbGlueC94aWxpbnhfZG1hLmMgYi9kcml2ZXJzL2RtYS94aWxpbngveGlsaW54X2RtYS5jCj4g aW5kZXggYWFhNmRlOGE3MGU0Li5iMTdmMjRlNGVjMzUgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9k bWEveGlsaW54L3hpbGlueF9kbWEuYwo+ICsrKyBiL2RyaXZlcnMvZG1hL3hpbGlueC94aWxpbnhf ZG1hLmMKPiBAQCAtMTU4LDcgKzE1OCw5IEBACj4gICNkZWZpbmUgWElMSU5YX0RNQV9SRUdfQlRU CQkweDI4Cj4gIAo+ICAvKiBBWEkgRE1BIFNwZWNpZmljIE1hc2tzL0JpdCBmaWVsZHMgKi8KPiAt I2RlZmluZSBYSUxJTlhfRE1BX01BWF9UUkFOU19MRU4JR0VOTUFTSygyMiwgMCkKPiArI2RlZmlu ZSBYSUxJTlhfRE1BX01BWF9UUkFOU19MRU5fTUlOCTgKPiArI2RlZmluZSBYSUxJTlhfRE1BX01B WF9UUkFOU19MRU5fTUFYCTIzCj4gKyNkZWZpbmUgWElMSU5YX0RNQV9WMl9NQVhfVFJBTlNfTEVO X01BWAkyNgo+ICAjZGVmaW5lIFhJTElOWF9ETUFfQ1JfQ09BTEVTQ0VfTUFYCUdFTk1BU0soMjMs IDE2KQo+ICAjZGVmaW5lIFhJTElOWF9ETUFfQ1JfQ1lDTElDX0JEX0VOX01BU0sJQklUKDQpCj4g ICNkZWZpbmUgWElMSU5YX0RNQV9DUl9DT0FMRVNDRV9TSElGVAkxNgo+IEBAIC00MTgsNiArNDIw LDcgQEAgc3RydWN0IHhpbGlueF9kbWFfY29uZmlnIHsKPiAgICogQHJ4c19jbGs6IERNQSBzMm1t IHN0cmVhbSBjbG9jawo+ICAgKiBAbnJfY2hhbm5lbHM6IE51bWJlciBvZiBjaGFubmVscyBETUEg ZGV2aWNlIHN1cHBvcnRzCj4gICAqIEBjaGFuX2lkOiBETUEgY2hhbm5lbCBpZGVudGlmaWVyCj4g KyAqIEBtYXhfYnVmZmVyX2xlbjogTWF4IGJ1ZmZlciBsZW5ndGgKPiAgICovCj4gIHN0cnVjdCB4 aWxpbnhfZG1hX2RldmljZSB7Cj4gIAl2b2lkIF9faW9tZW0gKnJlZ3M7Cj4gQEAgLTQzNyw2ICs0 NDAsNyBAQCBzdHJ1Y3QgeGlsaW54X2RtYV9kZXZpY2Ugewo+ICAJc3RydWN0IGNsayAqcnhzX2Ns azsKPiAgCXUzMiBucl9jaGFubmVsczsKPiAgCXUzMiBjaGFuX2lkOwo+ICsJdTMyIG1heF9idWZm ZXJfbGVuOwo+ICB9Owo+ICAKPiAgLyogTWFjcm9zICovCj4gQEAgLTk2NCw3ICs5NjgsNyBAQCBz dGF0aWMgaW50IHhpbGlueF9kbWFfY2FsY19jb3B5c2l6ZShzdHJ1Y3QgeGlsaW54X2RtYV9jaGFu ICpjaGFuLAo+ICAJCQkJICAgIGludCBzaXplLCBpbnQgZG9uZSkKPiAgewo+ICAJc2l6ZV90IGNv cHkgPSBtaW5fdChzaXplX3QsIHNpemUgLSBkb25lLAo+IC0JCSAgICAgWElMSU5YX0RNQV9NQVhf VFJBTlNfTEVOKTsKPiArCQkJICAgIGNoYW4tPnhkZXYtPm1heF9idWZmZXJfbGVuKTsKCmhtbSB3 aHkgbm90IGFkZCBtYXhfYnVmZmVyX2xlbiBpbiBwYXRjaCAxIGFnYWluLCBhbmQgdGhlbiB1c2Ug ZGVmYXVsdApsZW4gYXMgWElMSU5YX0RNQV9NQVhfVFJBTlNfTEVOIGFuZCBhZGQgbXVsdGlwbGUg bGVuZ3RocyBoZXJlIDopCgotIAp+Vmlub2QK