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Tue, 07 Jan 2020 10:46:41 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 414D0100034; Tue, 7 Jan 2020 10:46:41 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 2EE722A8204; Tue, 7 Jan 2020 10:46:41 +0100 (CET) Received: from SFHDAG5NODE2.st.com (10.75.127.14) by SFHDAG3NODE2.st.com (10.75.127.8) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Tue, 7 Jan 2020 10:46:40 +0100 Received: from SFHDAG5NODE2.st.com ([fe80::1cb5:6767:370b:9af0]) by SFHDAG5NODE2.st.com ([fe80::1cb5:6767:370b:9af0%20]) with mapi id 15.00.1473.003; Tue, 7 Jan 2020 10:46:40 +0100 From: Hugues FRUCHET To: Peter Ujfalusi , "mchehab@kernel.org" , "mcoquelin.stm32@gmail.com" , Alexandre TORGUE CC: "vkoul@kernel.org" , "linux-media@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-stm32@st-md-mailman.stormreply.com" , "linux-arm-kernel@lists.infradead.org" Subject: Re: [PATCH] media: stm32-dcmi: Use dma_request_chan() instead dma_request_slave_channel() Thread-Topic: [PATCH] media: stm32-dcmi: Use dma_request_chan() instead dma_request_slave_channel() Thread-Index: AQHVtMaOm1nAskP+t06Lg3ivGfEhOKe/qEeAgB9cIQA= Date: Tue, 7 Jan 2020 09:46:40 +0000 Message-ID: <8229c7ed-b513-6bf8-5684-60d87a92d41f@st.com> References: <20191217104135.23554-1-peter.ujfalusi@ti.com> <84946ffd-8e90-7b6a-6667-a10e27d31655@st.com> In-Reply-To: <84946ffd-8e90-7b6a-6667-a10e27d31655@st.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.75.127.47] Content-Type: text/plain; charset="utf-8" Content-ID: <7CF506707FC8704EA5378A1A551351F2@st.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2020-01-07_02:2020-01-06,2020-01-07 signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org SGkgUGV0ZXIsDQoNCklmIG5vdCB0b28gbGF0ZSwgY291bGQgeW91IGNoYW5nZSB0cmFjZSB0byBv bmx5IHRyaWcgZXJyb3IgdHJhY2Ugd2hlbg0KZXJyb3IgaXMgbm90ICJwcm9iZSBkZWZlcmVkIiA/ IFNlZSBiZWxvdzoNCg0KLQljaGFuID0gZG1hX3JlcXVlc3Rfc2xhdmVfY2hhbm5lbCgmcGRldi0+ ZGV2LCAidHgiKTsNCi0JaWYgKCFjaGFuKSB7DQotCQlkZXZfaW5mbygmcGRldi0+ZGV2LCAiVW5h YmxlIHRvIHJlcXVlc3QgRE1BIGNoYW5uZWwsIGRlZmVyIHByb2JpbmdcbiIpOw0KLQkJcmV0dXJu IC1FUFJPQkVfREVGRVI7DQorCWNoYW4gPSBkbWFfcmVxdWVzdF9jaGFuKCZwZGV2LT5kZXYsICJ0 eCIpOw0KKwlpZiAoSVNfRVJSKGNoYW4pKSB7DQorCQlpZiAoUFRSX0VSUihjaGFuKSAhPSAtRVBS T0JFX0RFRkVSKQ0KKwkJCWRldl9lcnIoJnBkZXYtPmRldiwgIlVuYWJsZSB0byByZXF1ZXN0IERN QSBjaGFubmVsXG4iKTsNCisJCXJldHVybiBQVFJfRVJSKGNoYW4pOw0KDQoNCkJlc3QgcmVnYXJk cywNCkh1Z3Vlcy4NCg0KT24gMTIvMTgvMTkgMTE6NTIgQU0sIEh1Z3VlcyBGUlVDSEVUIHdyb3Rl Og0KPiBUaGFua3MgZm9yIHBhdGNoaW5nIFBldGVyLA0KPiANCj4gTm8gcmVncmVzc2lvbiBvYnNl cnZlZCBvbiBteSBzaWRlLg0KPiANCj4gQWNrZWQtYnk6IEh1Z3VlcyBGcnVjaGV0IDxodWd1ZXMu ZnJ1Y2hldEBzdC5jb20+DQo+IA0KPiBCZXN0IHJlZ2FyZHMsDQo+IEh1Z3Vlcy4NCj4gDQo+IE9u IDEyLzE3LzE5IDExOjQxIEFNLCBQZXRlciBVamZhbHVzaSB3cm90ZToNCj4+IGRtYV9yZXF1ZXN0 X3NsYXZlX2NoYW5uZWwoKSBpcyBhIHdyYXBwZXIgb24gdG9wIG9mIGRtYV9yZXF1ZXN0X2NoYW4o KQ0KPj4gZWF0aW5nIHVwIHRoZSBlcnJvciBjb2RlLg0KPj4NCj4+IEJ5IHVzaW5nIGRtYV9yZXF1 ZXN0X2NoYW4oKSBkaXJlY3RseSB0aGUgZHJpdmVyIGNhbiBzdXBwb3J0IGRlZmVycmVkDQo+PiBw cm9iaW5nIGFnYWluc3QgRE1BLg0KPj4NCj4+IFNpZ25lZC1vZmYtYnk6IFBldGVyIFVqZmFsdXNp IDxwZXRlci51amZhbHVzaUB0aS5jb20+DQo+PiAtLS0NCj4+IMKgIGRyaXZlcnMvbWVkaWEvcGxh dGZvcm0vc3RtMzIvc3RtMzItZGNtaS5jIHwgNiArKystLS0NCj4+IMKgIDEgZmlsZSBjaGFuZ2Vk LCAzIGluc2VydGlvbnMoKyksIDMgZGVsZXRpb25zKC0pDQo+Pg0KPj4gZGlmZiAtLWdpdCBhL2Ry aXZlcnMvbWVkaWEvcGxhdGZvcm0vc3RtMzIvc3RtMzItZGNtaS5jIA0KPj4gYi9kcml2ZXJzL21l ZGlhL3BsYXRmb3JtL3N0bTMyL3N0bTMyLWRjbWkuYw0KPj4gaW5kZXggOTM5MmUzNDA5ZmJhLi41 NTM1MTg3MmIwYzcgMTAwNjQ0DQo+PiAtLS0gYS9kcml2ZXJzL21lZGlhL3BsYXRmb3JtL3N0bTMy L3N0bTMyLWRjbWkuYw0KPj4gKysrIGIvZHJpdmVycy9tZWRpYS9wbGF0Zm9ybS9zdG0zMi9zdG0z Mi1kY21pLmMNCj4+IEBAIC0xOTEwLDEwICsxOTEwLDEwIEBAIHN0YXRpYyBpbnQgZGNtaV9wcm9i ZShzdHJ1Y3QgcGxhdGZvcm1fZGV2aWNlIA0KPj4gKnBkZXYpDQo+PiDCoMKgwqDCoMKgwqDCoMKg wqAgcmV0dXJuIFBUUl9FUlIobWNsayk7DQo+PiDCoMKgwqDCoMKgIH0NCj4+IC3CoMKgwqAgY2hh biA9IGRtYV9yZXF1ZXN0X3NsYXZlX2NoYW5uZWwoJnBkZXYtPmRldiwgInR4Iik7DQo+PiAtwqDC oMKgIGlmICghY2hhbikgew0KPj4gK8KgwqDCoCBjaGFuID0gZG1hX3JlcXVlc3RfY2hhbigmcGRl di0+ZGV2LCAidHgiKTsNCj4+ICvCoMKgwqAgaWYgKElTX0VSUihjaGFuKSkgew0KPj4gwqDCoMKg wqDCoMKgwqDCoMKgIGRldl9pbmZvKCZwZGV2LT5kZXYsICJVbmFibGUgdG8gcmVxdWVzdCBETUEg Y2hhbm5lbCwgZGVmZXIgDQo+PiBwcm9iaW5nXG4iKTsNCj4+IC3CoMKgwqDCoMKgwqDCoCByZXR1 cm4gLUVQUk9CRV9ERUZFUjsNCj4+ICvCoMKgwqDCoMKgwqDCoCByZXR1cm4gUFRSX0VSUihjaGFu KTsNCj4+IMKgwqDCoMKgwqAgfQ0KPj4gwqDCoMKgwqDCoCBzcGluX2xvY2tfaW5pdCgmZGNtaS0+ aXJxbG9jayk7DQo+Pg==