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: [v4,15/18] dmaengine: dma-jz4780: Use dma_set_residue() From: Paul Cercueil Message-Id: <20180807114218.20091-16-paul@crapouillou.net> Date: Tue, 7 Aug 2018 13:42:15 +0200 To: Vinod Koul , Rob Herring , Mark Rutland , Ralf Baechle , Paul Burton , James Hogan , Zubair Lutfullah Kakakhel Cc: Paul Cercueil , dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mips@linux-mips.org, Daniel Silsby List-ID: RnJvbTogRGFuaWVsIFNpbHNieSA8ZGFuc2lsc2J5QGdtYWlsLmNvbT4KClRoaXMgaXMgdGhlIHN0 YW5kYXJkIG1ldGhvZCBwcm92aWRlZCBieSBkbWFlbmdpbmUgaGVhZGVyLgoKU2lnbmVkLW9mZi1i eTogRGFuaWVsIFNpbHNieSA8ZGFuc2lsc2J5QGdtYWlsLmNvbT4KU2lnbmVkLW9mZi1ieTogUGF1 bCBDZXJjdWVpbCA8cGF1bEBjcmFwb3VpbGxvdS5uZXQ+ClRlc3RlZC1ieTogTWF0aGlldSBNYWxh dGVycmUgPG1hbGF0QGRlYmlhbi5vcmc+Ci0tLQogZHJpdmVycy9kbWEvZG1hLWp6NDc4MC5jIHwg OSArKysrKy0tLS0KIDEgZmlsZSBjaGFuZ2VkLCA1IGluc2VydGlvbnMoKyksIDQgZGVsZXRpb25z KC0pCgogdjI6IE5vIGNoYW5nZQoKIHYzOiBObyBjaGFuZ2UKCiB2NDogQWRkIG15IFNpZ25lZC1v ZmYtYnkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2RtYS9kbWEtano0NzgwLmMgYi9kcml2ZXJzL2Rt YS9kbWEtano0NzgwLmMKaW5kZXggMzUxZGM4MjY4NTE1Li4zMmUxMGVkYzU1ZTAgMTAwNjQ0Ci0t LSBhL2RyaXZlcnMvZG1hL2RtYS1qejQ3ODAuYworKysgYi9kcml2ZXJzL2RtYS9kbWEtano0Nzgw LmMKQEAgLTYzOSw2ICs2MzksNyBAQCBzdGF0aWMgZW51bSBkbWFfc3RhdHVzIGp6NDc4MF9kbWFf dHhfc3RhdHVzKHN0cnVjdCBkbWFfY2hhbiAqY2hhbiwKIAlzdHJ1Y3QgdmlydF9kbWFfZGVzYyAq dmRlc2M7CiAJZW51bSBkbWFfc3RhdHVzIHN0YXR1czsKIAl1bnNpZ25lZCBsb25nIGZsYWdzOwor CXVuc2lnbmVkIGxvbmcgcmVzaWR1ZSA9IDA7CiAKIAlzdGF0dXMgPSBkbWFfY29va2llX3N0YXR1 cyhjaGFuLCBjb29raWUsIHR4c3RhdGUpOwogCWlmICgoc3RhdHVzID09IERNQV9DT01QTEVURSkg fHwgKHR4c3RhdGUgPT0gTlVMTCkpCkBAIC02NDksMTMgKzY1MCwxMyBAQCBzdGF0aWMgZW51bSBk bWFfc3RhdHVzIGp6NDc4MF9kbWFfdHhfc3RhdHVzKHN0cnVjdCBkbWFfY2hhbiAqY2hhbiwKIAl2 ZGVzYyA9IHZjaGFuX2ZpbmRfZGVzYygmanpjaGFuLT52Y2hhbiwgY29va2llKTsKIAlpZiAodmRl c2MpIHsKIAkJLyogT24gdGhlIGlzc3VlZCBsaXN0LCBzbyBoYXNuJ3QgYmVlbiBwcm9jZXNzZWQg eWV0ICovCi0JCXR4c3RhdGUtPnJlc2lkdWUgPSBqejQ3ODBfZG1hX2Rlc2NfcmVzaWR1ZShqemNo YW4sCisJCXJlc2lkdWUgPSBqejQ3ODBfZG1hX2Rlc2NfcmVzaWR1ZShqemNoYW4sCiAJCQkJCXRv X2p6NDc4MF9kbWFfZGVzYyh2ZGVzYyksIDApOwogCX0gZWxzZSBpZiAoY29va2llID09IGp6Y2hh bi0+ZGVzYy0+dmRlc2MudHguY29va2llKSB7Ci0JCXR4c3RhdGUtPnJlc2lkdWUgPSBqejQ3ODBf ZG1hX2Rlc2NfcmVzaWR1ZShqemNoYW4sIGp6Y2hhbi0+ZGVzYywKKwkJcmVzaWR1ZSA9IGp6NDc4 MF9kbWFfZGVzY19yZXNpZHVlKGp6Y2hhbiwganpjaGFuLT5kZXNjLAogCQkJCQlqemNoYW4tPmN1 cnJfaHdkZXNjICsgMSk7Ci0JfSBlbHNlCi0JCXR4c3RhdGUtPnJlc2lkdWUgPSAwOworCX0KKwlk bWFfc2V0X3Jlc2lkdWUodHhzdGF0ZSwgcmVzaWR1ZSk7CiAKIAlpZiAodmRlc2MgJiYganpjaGFu LT5kZXNjICYmIHZkZXNjID09ICZqemNoYW4tPmRlc2MtPnZkZXNjCiAJICAgICYmIGp6Y2hhbi0+ ZGVzYy0+c3RhdHVzICYgKEpaX0RNQV9EQ1NfQVIgfCBKWl9ETUFfRENTX0hMVCkpCg==