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Tue, 07 Jan 2020 14:38:58 +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 5F30510002A; Tue, 7 Jan 2020 14:38:57 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag3node3.st.com [10.75.127.9]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 4F0E12AD2CF; Tue, 7 Jan 2020 14:38:57 +0100 (CET) Received: from SFHDAG5NODE2.st.com (10.75.127.14) by SFHDAG3NODE3.st.com (10.75.127.9) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Tue, 7 Jan 2020 14:38:56 +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 14:38:57 +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 v2] media: stm32-dcmi: Use dma_request_chan() instead dma_request_slave_channel() Thread-Topic: [PATCH v2] media: stm32-dcmi: Use dma_request_chan() instead dma_request_slave_channel() Thread-Index: AQHVxVGbHPd1NuwJTkW5aQNGUInX/KffJDYA Date: Tue, 7 Jan 2020 13:38:56 +0000 Message-ID: References: <20200107115253.8351-1-peter.ujfalusi@ti.com> In-Reply-To: <20200107115253.8351-1-peter.ujfalusi@ti.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: [10.75.127.49] Content-Type: text/plain; charset="utf-8" Content-ID: <4BB28C0379F2FE4CA71ECF47693910DA@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_03:2020-01-06,2020-01-07 signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org QWNrZWQtYnk6IEh1Z3VlcyBGcnVjaGV0IDxodWd1ZXMuZnJ1Y2hldEBzdC5jb20+DQoNCk9uIDEv Ny8yMCAxMjo1MiBQTSwgUGV0ZXIgVWpmYWx1c2kgd3JvdGU6DQo+IGRtYV9yZXF1ZXN0X3NsYXZl X2NoYW5uZWwoKSBpcyBhIHdyYXBwZXIgb24gdG9wIG9mIGRtYV9yZXF1ZXN0X2NoYW4oKQ0KPiBl YXRpbmcgdXAgdGhlIGVycm9yIGNvZGUuDQo+IA0KPiBCeSB1c2luZyBkbWFfcmVxdWVzdF9jaGFu KCkgZGlyZWN0bHkgdGhlIGRyaXZlciBjYW4gc3VwcG9ydCBkZWZlcnJlZA0KPiBwcm9iaW5nIGFn YWluc3QgRE1BLg0KPiANCj4gU2lnbmVkLW9mZi1ieTogUGV0ZXIgVWpmYWx1c2kgPHBldGVyLnVq ZmFsdXNpQHRpLmNvbT4NCj4gLS0tDQo+IEhpLA0KPiANCj4gQ2hhbmdlcyBzaW5jZSB2MToNCj4g LSBEbyBub3QgcHJpbnQgZXJyb3IgZm9yIEVQUk9CRV9ERUZFUg0KPiANCj4gUmVnYXJkcywNCj4g UGV0ZXINCj4gDQo+ICAgZHJpdmVycy9tZWRpYS9wbGF0Zm9ybS9zdG0zMi9zdG0zMi1kY21pLmMg fCAxMSArKysrKysrLS0tLQ0KPiAgIDEgZmlsZSBjaGFuZ2VkLCA3IGluc2VydGlvbnMoKyksIDQg ZGVsZXRpb25zKC0pDQo+IA0KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9tZWRpYS9wbGF0Zm9ybS9z dG0zMi9zdG0zMi1kY21pLmMgYi9kcml2ZXJzL21lZGlhL3BsYXRmb3JtL3N0bTMyL3N0bTMyLWRj bWkuYw0KPiBpbmRleCA5MzkyZTM0MDlmYmEuLmI2M2ZmOGQ2MzZjZSAxMDA2NDQNCj4gLS0tIGEv ZHJpdmVycy9tZWRpYS9wbGF0Zm9ybS9zdG0zMi9zdG0zMi1kY21pLmMNCj4gKysrIGIvZHJpdmVy cy9tZWRpYS9wbGF0Zm9ybS9zdG0zMi9zdG0zMi1kY21pLmMNCj4gQEAgLTE5MTAsMTAgKzE5MTAs MTMgQEAgc3RhdGljIGludCBkY21pX3Byb2JlKHN0cnVjdCBwbGF0Zm9ybV9kZXZpY2UgKnBkZXYp DQo+ICAgCQlyZXR1cm4gUFRSX0VSUihtY2xrKTsNCj4gICAJfQ0KPiAgIA0KPiAtCWNoYW4gPSBk bWFfcmVxdWVzdF9zbGF2ZV9jaGFubmVsKCZwZGV2LT5kZXYsICJ0eCIpOw0KPiAtCWlmICghY2hh bikgew0KPiAtCQlkZXZfaW5mbygmcGRldi0+ZGV2LCAiVW5hYmxlIHRvIHJlcXVlc3QgRE1BIGNo YW5uZWwsIGRlZmVyIHByb2JpbmdcbiIpOw0KPiAtCQlyZXR1cm4gLUVQUk9CRV9ERUZFUjsNCj4g KwljaGFuID0gZG1hX3JlcXVlc3RfY2hhbigmcGRldi0+ZGV2LCAidHgiKTsNCj4gKwlpZiAoSVNf RVJSKGNoYW4pKSB7DQo+ICsJCXJldCA9IFBUUl9FUlIoY2hhbik7DQo+ICsJCWlmIChyZXQgIT0g LUVQUk9CRV9ERUZFUikNCj4gKwkJCWRldl9lcnIoJnBkZXYtPmRldiwNCj4gKwkJCQkiRmFpbGVk IHRvIHJlcXVlc3QgRE1BIGNoYW5uZWw6ICVkXG4iLCByZXQpOw0KPiArCQlyZXR1cm4gcmV0Ow0K PiAgIAl9DQo+ICAgDQo+ICAgCXNwaW5fbG9ja19pbml0KCZkY21pLT5pcnFsb2NrKTsNCj4g