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: [2/2] dmaengine: sh: rcar-dmac: Fix glitch in dmaengine_tx_status From: Dirk Behme Message-Id: <20190305055628.11826-2-dirk.behme@de.bosch.com> Date: Tue, 5 Mar 2019 06:56:28 +0100 To: linux-renesas-soc@vger.kernel.org Cc: dmaengine@vger.kernel.org, vkoul@kernel.org, geert+renesas@glider.be, niklas.soderlund+renesas@ragnatech.se, laurent.pinchart+renesas@ideasonboard.com, Achim.Dahlhoff@de.bosch.com, dirk.behme@de.bosch.com, stable@vger.kernel.org List-ID: RnJvbTogQWNoaW0gRGFobGhvZmYgPEFjaGltLkRhaGxob2ZmQGRlLmJvc2NoLmNvbT4KClRoZSB0 eF9zdGF0dXMgcG9sbCBpbiB0aGUgcmNhcl9kbWFjIGRyaXZlciByZWFkcyB0aGUgc3RhdHVzIHJl Z2lzdGVyCndoaWNoIGluZGljYXRlcyB3aGljaCBjaHVuayBpcyBidXN5IChETUFDSENSQikuIEFm dGVyd2FyZHMgdGhlIHBvaW50Cmluc2lkZSB0aGUgY2h1bmsgaXMgcmVhZCBmcm9tIERNQVRDUkIu IEl0IGlzIHBvc3NpYmxlIHRoYXQgdGhlIGNodW5rCmhhcyBjaGFuZ2VkIGJldHdlZW4gdGhlIHR3 byByZWFkcy4gVGhlIHJlc3VsdCBpcyBhIG5vbi1tb25vdG9ub3VzCmluY3JlYXNlIG9mIHRoZSBy ZXNpZHVlLiBGaXggdGhpcyBieSBpbnRyb2R1Y2luZyBhICdzYWZlIHJlYWQnIGxvZ2ljLgoKRml4 ZXM6IDczYTQ3YmQwZGE2NiAoImRtYWVuZ2luZTogcmNhci1kbWFjOiB1c2UgVENSQiBpbnN0ZWFk IG9mIFRDUiBmb3IgcmVzaWR1ZSIpClNpZ25lZC1vZmYtYnk6IEFjaGltIERhaGxob2ZmIDxBY2hp bS5EYWhsaG9mZkBkZS5ib3NjaC5jb20+ClNpZ25lZC1vZmYtYnk6IERpcmsgQmVobWUgPGRpcmsu YmVobWVAZGUuYm9zY2guY29tPgpDYzogPHN0YWJsZUB2Z2VyLmtlcm5lbC5vcmc+ICMgdjQuMTYr Ci0tLQpOb3RlOiBQYXRjaCBkb25lIGFnYWluc3QgbWFpbmxpbmUgdjUuMAoKQ2hhbmdlcyBpbiB2 MjogU3dpdGNoIGdvdG8vcmV0cnkgdG8gZm9yIGxvb3AKCiBkcml2ZXJzL2RtYS9zaC9yY2FyLWRt YWMuYyB8IDI2ICsrKysrKysrKysrKysrKysrKysrKysrLS0tCiAxIGZpbGUgY2hhbmdlZCwgMjMg aW5zZXJ0aW9ucygrKSwgMyBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2RtYS9z aC9yY2FyLWRtYWMuYyBiL2RyaXZlcnMvZG1hL3NoL3JjYXItZG1hYy5jCmluZGV4IDJlYTU5MjI5 ZDdmNS4uY2NlZGRjNzA5OWIwIDEwMDY0NAotLS0gYS9kcml2ZXJzL2RtYS9zaC9yY2FyLWRtYWMu YworKysgYi9kcml2ZXJzL2RtYS9zaC9yY2FyLWRtYWMuYwpAQCAtMTI4Miw2ICsxMjgyLDkgQEAg c3RhdGljIHVuc2lnbmVkIGludCByY2FyX2RtYWNfY2hhbl9nZXRfcmVzaWR1ZShzdHJ1Y3QgcmNh cl9kbWFjX2NoYW4gKmNoYW4sCiAJZW51bSBkbWFfc3RhdHVzIHN0YXR1czsKIAl1bnNpZ25lZCBp bnQgcmVzaWR1ZSA9IDA7CiAJdW5zaWduZWQgaW50IGRwdHIgPSAwOworCXVuc2lnbmVkIGludCBj aGNyYjsKKwl1bnNpZ25lZCBpbnQgdGNyYjsKKwl1bnNpZ25lZCBpbnQgaTsKIAogCWlmICghZGVz YykKIAkJcmV0dXJuIDA7CkBAIC0xMzI5LDYgKzEzMzIsMjQgQEAgc3RhdGljIHVuc2lnbmVkIGlu dCByY2FyX2RtYWNfY2hhbl9nZXRfcmVzaWR1ZShzdHJ1Y3QgcmNhcl9kbWFjX2NoYW4gKmNoYW4s CiAJCXJldHVybiAwOwogCX0KIAorCS8qCisJICogV2UgbmVlZCB0byByZWFkIHR3byByZWdpc3Rl cnMuCisJICogTWFrZSBzdXJlIHRoZSBjb250cm9sIHJlZ2lzdGVyIGRvZXMgbm90IHNraXAgdG8g bmV4dCBjaHVuaworCSAqIHdoaWxlIHJlYWRpbmcgdGhlIGNvdW50ZXIuCisJICogVHJ5aW5nIGl0 IDMgdGltZXMgc2hvdWxkIGJlIGVub3VnaDogSW5pdGlhbCByZWFkLCByZXRyeSwgcmV0cnkKKwkg KiBmb3IgdGhlIHBhcmFub2lkLgorCSAqLworCWZvciAoaSA9IDA7IGkgPCAzOyBpKyspIHsKKwkJ Y2hjcmIgPSByY2FyX2RtYWNfY2hhbl9yZWFkKGNoYW4sIFJDQVJfRE1BQ0hDUkIpICYKKwkJCQkJ ICAgIFJDQVJfRE1BQ0hDUkJfRFBUUl9NQVNLOworCQl0Y3JiID0gcmNhcl9kbWFjX2NoYW5fcmVh ZChjaGFuLCBSQ0FSX0RNQVRDUkIpOworCQkvKiBTdGlsbCB0aGUgc2FtZT8gKi8KKwkJaWYgKGNo Y3JiID09IChyY2FyX2RtYWNfY2hhbl9yZWFkKGNoYW4sIFJDQVJfRE1BQ0hDUkIpICYKKwkJCSAg ICAgIFJDQVJfRE1BQ0hDUkJfRFBUUl9NQVNLKSkKKwkJCWJyZWFrOworCX0KKwlXQVJOX09OQ0Uo aSA+PSAzLCAicmVzaWR1ZSBtaWdodCBiZSBub3QgY29udGludW91cyEiKTsKKwogCS8qCiAJICog SW4gZGVzY3JpcHRvciBtb2RlIHRoZSBkZXNjcmlwdG9yIHJ1bm5pbmcgcG9pbnRlciBpcyBub3Qg bWFpbnRhaW5lZAogCSAqIGJ5IHRoZSBpbnRlcnJ1cHQgaGFuZGxlciwgZmluZCB0aGUgcnVubmlu ZyBkZXNjcmlwdG9yIGZyb20gdGhlCkBAIC0xMzM2LDggKzEzNTcsNyBAQCBzdGF0aWMgdW5zaWdu ZWQgaW50IHJjYXJfZG1hY19jaGFuX2dldF9yZXNpZHVlKHN0cnVjdCByY2FyX2RtYWNfY2hhbiAq Y2hhbiwKIAkgKiBtb2RlIGp1c3QgdXNlIHRoZSBydW5uaW5nIGRlc2NyaXB0b3IgcG9pbnRlci4K IAkgKi8KIAlpZiAoZGVzYy0+aHdkZXNjcy51c2UpIHsKLQkJZHB0ciA9IChyY2FyX2RtYWNfY2hh bl9yZWFkKGNoYW4sIFJDQVJfRE1BQ0hDUkIpICYKLQkJCVJDQVJfRE1BQ0hDUkJfRFBUUl9NQVNL KSA+PiBSQ0FSX0RNQUNIQ1JCX0RQVFJfU0hJRlQ7CisJCWRwdHIgPSBjaGNyYiA+PiBSQ0FSX0RN QUNIQ1JCX0RQVFJfU0hJRlQ7CiAJCWlmIChkcHRyID09IDApCiAJCQlkcHRyID0gZGVzYy0+bmNo dW5rczsKIAkJZHB0ci0tOwpAQCAtMTM1NSw3ICsxMzc1LDcgQEAgc3RhdGljIHVuc2lnbmVkIGlu dCByY2FyX2RtYWNfY2hhbl9nZXRfcmVzaWR1ZShzdHJ1Y3QgcmNhcl9kbWFjX2NoYW4gKmNoYW4s CiAJfQogCiAJLyogQWRkIHRoZSByZXNpZHVlIGZvciB0aGUgY3VycmVudCBjaHVuay4gKi8KLQly ZXNpZHVlICs9IHJjYXJfZG1hY19jaGFuX3JlYWQoY2hhbiwgUkNBUl9ETUFUQ1JCKSA8PCBkZXNj LT54ZmVyX3NoaWZ0OworCXJlc2lkdWUgKz0gdGNyYiA8PCBkZXNjLT54ZmVyX3NoaWZ0OwogCiAJ cmV0dXJuIHJlc2lkdWU7CiB9Cg==