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: [v3] dmaengine: rcar-dmac: clear channel register when error From: Kuninori Morimoto Message-Id: <877emdrwsf.wl-kuninori.morimoto.gx@renesas.com> Date: Tue, 3 Jul 2018 00:29:29 +0000 To: Vinod Cc: Geert Uytterhoeven , Dan Williams , Magnus Damm , Linux-Renesas , Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , dmaengine@vger.kernel.org, Hiroki Negishi List-ID: RnJvbTogS3VuaW5vcmkgTW9yaW1vdG8gPGt1bmlub3JpLm1vcmltb3RvLmd4QHJlbmVzYXMuY29t PgoKV2UgbmVlZCB0byBjbGVhciBjaGFubmVsIHJlZ2lzdGVyIGluIGVycm9yIGNhc2UgYXMgcmVj b3ZlcnkuClRoZSBjaGFubmVsIGlzIGFscmVhZHkgc3RvcHBlZCBpbiBzdWNoIGNhc2UsIHRodXMg d2UgZG9uJ3QgbmVlZCB0byBjYWxsCnJjYXJfZG1hY19jaGFuX2hhbHQoKSBiZWZvcmUgY2xlYXJp bmcuCgpyY2FyX2RtYWNfY2hhbl9oYWx0KCkgd2lsbCBjbGVhciBhbmQgY29uZmlybSBERSBiaXQu CkJ1dCBpdCB3aWxsIGJlIGZhaWxlZCBiZWNhdXNlIGNoYW5uZWwgaXMgYWxyZWFkeSBzdG9wcGVk IGluIGVycm9yIGNhc2UuCkluIG90aGVyIHdvcmRzLCB3ZSBzaG91bGRuJ3QgY2FsbCBpdCB0aGVu LgoKUmVwb3J0ZWQtYnk6IEhpcm9raSBOZWdpc2hpIDxoaXJva2kubmVnaXNoaS5ieEByZW5lc2Fz LmNvbT4KU2lnbmVkLW9mZi1ieTogS3VuaW5vcmkgTW9yaW1vdG8gPGt1bmlub3JpLm1vcmltb3Rv Lmd4QHJlbmVzYXMuY29tPgpSZXZpZXdlZC1ieTogSGlyb2tpIE5lZ2lzaGkgPGhpcm9raS5uZWdp c2hpLmJ4QHJlbmVzYXMuY29tPgpSZXZpZXdlZC1ieTogU2ltb24gSG9ybWFuIDxob3JtcytyZW5l c2FzQHZlcmdlLm5ldC5hdT4KLS0tCnYyIC0+IHYzCgogLSB1c2UgdG9fcmNhcl9kbWFjKCkKIC0g YWRkIFNpbW9uJ3MgUmV2aWV3ZWQtYnkKCiBkcml2ZXJzL2RtYS9zaC9yY2FyLWRtYWMuYyB8IDEw ICsrKysrKysrKy0KIDEgZmlsZSBjaGFuZ2VkLCA5IGluc2VydGlvbnMoKyksIDEgZGVsZXRpb24o LSkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2RtYS9zaC9yY2FyLWRtYWMuYyBiL2RyaXZlcnMvZG1h L3NoL3JjYXItZG1hYy5jCmluZGV4IDI3OWM5MzAuLjc5ZDE0YWYgMTAwNjQ0Ci0tLSBhL2RyaXZl cnMvZG1hL3NoL3JjYXItZG1hYy5jCisrKyBiL2RyaXZlcnMvZG1hL3NoL3JjYXItZG1hYy5jCkBA IC0xNTI1LDcgKzE1MjUsMTUgQEAgc3RhdGljIGlycXJldHVybl90IHJjYXJfZG1hY19pc3JfY2hh bm5lbChpbnQgaXJxLCB2b2lkICpkZXYpCiAKIAljaGNyID0gcmNhcl9kbWFjX2NoYW5fcmVhZChj aGFuLCBSQ0FSX0RNQUNIQ1IpOwogCWlmIChjaGNyICYgUkNBUl9ETUFDSENSX0NBRSkgewotCQly Y2FyX2RtYWNfY2hhbl9oYWx0KGNoYW4pOworCQlzdHJ1Y3QgcmNhcl9kbWFjICpkbWFjID0gdG9f cmNhcl9kbWFjKGNoYW4tPmNoYW4uZGV2aWNlKTsKKworCQkvKgorCQkgKiBXZSBkb24ndCBuZWVk IHRvIGNhbGwgcmNhcl9kbWFjX2NoYW5faGFsdCgpCisJCSAqIGJlY2F1c2UgY2hhbm5lbCBpcyBh bHJlYWR5IHN0b3BwZWQgaW4gZXJyb3IgY2FzZS4KKwkJICogV2UgbmVlZCB0byBjbGVhciByZWdp c3RlciBhbmQgY2hlY2sgREUgYml0IGFzIHJlY292ZXJ5LgorCQkgKi8KKwkJcmNhcl9kbWFjX3dy aXRlKGRtYWMsIFJDQVJfRE1BQ0hDTFIsIDEgPDwgY2hhbi0+aW5kZXgpOworCQlyY2FyX2RtYWNf Y2hjcl9kZV9iYXJyaWVyKGNoYW4pOwogCQlyZWluaXQgPSB0cnVlOwogCQlnb3RvIHNwaW5fbG9j a19lbmQ7CiAJfQo=