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: [v7,1/6] dmaengine: xilinx_dma: Check for channel idle state before submitting dma descriptor From: Vinod Koul Message-Id: <20171218041711.GN18649@localhost> Date: Mon, 18 Dec 2017 09:47:11 +0530 To: Kedareswara rao Appana Cc: dan.j.williams@intel.com, michal.simek@xilinx.com, appanad@xilinx.com, lars@metafoo.de, akinobu.mita@gmail.com, joabreu@synopsys.com, mike.looijmans@topic.nl, kedare06@gmail.com, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org List-ID: T24gVGh1LCBEZWMgMDcsIDIwMTcgYXQgMTA6NTE6MDJBTSArMDUzMCwgS2VkYXJlc3dhcmEgcmFv IEFwcGFuYSB3cm90ZToKCj4gQEAgLTIwMjksNiArMjAwNiw3IEBAIHN0YXRpYyBpbnQgeGlsaW54 X2RtYV90ZXJtaW5hdGVfYWxsKHN0cnVjdCBkbWFfY2hhbiAqZGNoYW4pCj4gIAo+ICAJLyogUmVt b3ZlIGFuZCBmcmVlIGFsbCBvZiB0aGUgZGVzY3JpcHRvcnMgaW4gdGhlIGxpc3RzICovCj4gIAl4 aWxpbnhfZG1hX2ZyZWVfZGVzY3JpcHRvcnMoY2hhbik7Cj4gKwljaGFuLT5pZGxlID0gdHJ1ZTsK PiAgCj4gIAlpZiAoY2hhbi0+Y3ljbGljKSB7Cj4gIAkJcmVnID0gZG1hX2N0cmxfcmVhZChjaGFu LCBYSUxJTlhfRE1BX1JFR19ETUFDUik7Cj4gQEAgLTIzNDQsNiArMjMyMiwxMiBAQCBzdGF0aWMg aW50IHhpbGlueF9kbWFfY2hhbl9wcm9iZShzdHJ1Y3QgeGlsaW54X2RtYV9kZXZpY2UgKnhkZXYs Cj4gIAljaGFuLT5oYXNfc2cgPSB4ZGV2LT5oYXNfc2c7Cj4gIAljaGFuLT5kZXNjX3BlbmRpbmdj b3VudCA9IDB4MDsKPiAgCWNoYW4tPmV4dF9hZGRyID0geGRldi0+ZXh0X2FkZHI7Cj4gKwkvKiBU aGlzIHZhcmlhYmxlIGVudXNyZXMgdGhhdCBkZXNjcmlwb3RycyBhcmUgbm90CgkJCQkgICAgICBe Xl5eXl5eXl5eCgp0eXBvCg==