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: [09/15] dmaengine: img-mdc: Handle early status read From: Vinod Koul Message-Id: <20180724113654.GL3219@vkoul-mobl> Date: Tue, 24 Jul 2018 17:06:54 +0530 To: Andreas =?iso-8859-1?Q?F=E4rber?= Cc: linux-mips@linux-mips.org, Ralf Baechle , Paul Burton , James Hogan , linux-kernel@vger.kernel.org, Damien Horsley , Dan Williams , dmaengine@vger.kernel.org List-ID: T24gMjItMDctMTgsIDIzOjIwLCBBbmRyZWFzIEbDpHJiZXIgd3JvdGU6Cj4gRnJvbTogRGFtaWVu IEhvcnNsZXkgPGRhbWllbi5ob3JzbGV5QGltZ3RlYy5jb20+Cj4gCj4gSXQgaXMgcG9zc2libGUg dGhhdCBtZGNfdHhfc3RhdHVzIG1heSBiZSBjYWxsZWQgYmVmb3JlIHRoZSBmaXJzdAo+IG5vZGUg aGFzIGJlZW4gcmVhZCBmcm9tIG1lbW9yeS4KPiAKPiBJbiB0aGlzIGNhc2UsIHRoZSByZXNpZHVl IHZhbHVlIHN0b3JlZCBpbiB0aGUgcmVnaXN0ZXIgaXMgdW5kZWZpbmVkLgo+IFJldHVybiB0aGUg dHJhbnNmZXIgc2l6ZSBpbnN0ZWFkLgo+IAo+IFNpZ25lZC1vZmYtYnk6IERhbWllbiBIb3JzbGV5 IDxkYW1pZW4uaG9yc2xleUBpbWd0ZWMuY29tPgo+IFNpZ25lZC1vZmYtYnk6IEFuZHJlYXMgRsOk cmJlciA8YWZhZXJiZXJAc3VzZS5kZT4KPiAtLS0KPiAgZHJpdmVycy9kbWEvaW1nLW1kYy1kbWEu YyB8IDQwICsrKysrKysrKysrKysrKysrKysrKysrKy0tLS0tLS0tLS0tLS0tLS0KPiAgMSBmaWxl IGNoYW5nZWQsIDI0IGluc2VydGlvbnMoKyksIDE2IGRlbGV0aW9ucygtKQo+IAo+IGRpZmYgLS1n aXQgYS9kcml2ZXJzL2RtYS9pbWctbWRjLWRtYS5jIGIvZHJpdmVycy9kbWEvaW1nLW1kYy1kbWEu Ywo+IGluZGV4IDI1Y2VjOWMyNDNlMS4uMGYyZjBmNTJkODNhIDEwMDY0NAo+IC0tLSBhL2RyaXZl cnMvZG1hL2ltZy1tZGMtZG1hLmMKPiArKysgYi9kcml2ZXJzL2RtYS9pbWctbWRjLWRtYS5jCj4g QEAgLTYyMSwyNSArNjIxLDMzIEBAIHN0YXRpYyBlbnVtIGRtYV9zdGF0dXMgbWRjX3R4X3N0YXR1 cyhzdHJ1Y3QgZG1hX2NoYW4gKmNoYW4sCj4gIAkJCShNRENfQ01EU19QUk9DRVNTRURfQ01EU19E T05FX01BU0sgKyAxKTsKPiAgCj4gIAkJLyoKPiAtCQkgKiBJZiB0aGUgY29tbWFuZCBsb2FkZWQg ZXZlbnQgaGFzbid0IGJlZW4gcHJvY2Vzc2VkIHlldCwgdGhlbgo+IC0JCSAqIHRoZSBkaWZmZXJl bmNlIGFib3ZlIGluY2x1ZGVzIGFuIGV4dHJhIGNvbW1hbmQuCj4gKwkJICogSWYgdGhlIGZpcnN0 IG5vZGUgaGFzIG5vdCB5ZXQgYmVlbiByZWFkIGZyb20gbWVtb3J5LAo+ICsJCSAqIHRoZSByZXNp ZHVlIHJlZ2lzdGVyIHZhbHVlIGlzIHVuZGVmaW5lZAoKc28gaXMgdGhpcyB0aGUgY2FzZSB3aGVu IHRyYW5zZmVyIGlzIG5vdCBzdGFydGVkID8KCj4gIAkJICovCj4gLQkJaWYgKCFtZGVzYy0+Y21k X2xvYWRlZCkKPiAtCQkJY21kcy0tOwo+IC0JCWVsc2UKPiAtCQkJY21kcyArPSBtZGVzYy0+bGlz dF9jbWRzX2RvbmU7Cj4gLQo+IC0JCWJ5dGVzID0gbWRlc2MtPmxpc3RfeGZlcl9zaXplOwo+IC0J CWxkZXNjID0gbWRlc2MtPmxpc3Q7Cj4gLQkJZm9yIChpID0gMDsgaSA8IGNtZHM7IGkrKykgewo+ IC0JCQlieXRlcyAtPSBsZGVzYy0+eGZlcl9zaXplICsgMTsKPiAtCQkJbGRlc2MgPSBsZGVzYy0+ bmV4dF9kZXNjOwo+IC0JCX0KPiAtCQlpZiAobGRlc2MpIHsKPiAtCQkJaWYgKHJlc2lkdWUgIT0g TURDX1RSQU5TRkVSX1NJWkVfTUFTSykKPiAtCQkJCWJ5dGVzIC09IGxkZXNjLT54ZmVyX3NpemUg LSByZXNpZHVlOwo+ICsJCWlmICghbWRlc2MtPmNtZF9sb2FkZWQgJiYgIWNtZHMpIHsKPiArCQkJ Ynl0ZXMgPSBtZGVzYy0+bGlzdF94ZmVyX3NpemU7Cj4gKwkJfSBlbHNlIHsKPiArCQkJLyoKPiAr CQkJICogSWYgdGhlIGNvbW1hbmQgbG9hZGVkIGV2ZW50IGhhc24ndCBiZWVuIHByb2Nlc3NlZCB5 ZXQsIHRoZW4KPiArCQkJICogdGhlIGRpZmZlcmVuY2UgYWJvdmUgaW5jbHVkZXMgYW4gZXh0cmEg Y29tbWFuZC4KPiArCQkJICovCj4gKwkJCWlmICghbWRlc2MtPmNtZF9sb2FkZWQpCj4gKwkJCQlj bWRzLS07Cj4gIAkJCWVsc2UKPiArCQkJCWNtZHMgKz0gbWRlc2MtPmxpc3RfY21kc19kb25lOwo+ ICsKPiArCQkJYnl0ZXMgPSBtZGVzYy0+bGlzdF94ZmVyX3NpemU7Cj4gKwkJCWxkZXNjID0gbWRl c2MtPmxpc3Q7Cj4gKwkJCWZvciAoaSA9IDA7IGkgPCBjbWRzOyBpKyspIHsKPiAgCQkJCWJ5dGVz IC09IGxkZXNjLT54ZmVyX3NpemUgKyAxOwo+ICsJCQkJbGRlc2MgPSBsZGVzYy0+bmV4dF9kZXNj Owo+ICsJCQl9Cj4gKwkJCWlmIChsZGVzYykgewo+ICsJCQkJaWYgKHJlc2lkdWUgIT0gTURDX1RS QU5TRkVSX1NJWkVfTUFTSykKPiArCQkJCQlieXRlcyAtPSBsZGVzYy0+eGZlcl9zaXplIC0gcmVz aWR1ZTsKPiArCQkJCWVsc2UKPiArCQkJCQlieXRlcyAtPSBsZGVzYy0+eGZlcl9zaXplICsgMTsK PiArCQkJfQo+ICAJCX0KPiAgCX0KPiAgCXNwaW5fdW5sb2NrX2lycXJlc3RvcmUoJm1jaGFuLT52 Yy5sb2NrLCBmbGFncyk7Cj4gLS0gCj4gMi4xNi40Cg==