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Tue, 07 Jan 2020 12:08:18 +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 D9107100034; Tue, 7 Jan 2020 12:08:17 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag3node1.st.com [10.75.127.7]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id C880A2AD2C6; Tue, 7 Jan 2020 12:08:17 +0100 (CET) Received: from SFHDAG5NODE2.st.com (10.75.127.14) by SFHDAG3NODE1.st.com (10.75.127.7) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 7 Jan 2020 12:08:17 +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 12:08:17 +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/qEeAgB9cIQCAAA6aAIAACDIA Date: Tue, 7 Jan 2020 11:08:17 +0000 Message-ID: <2434a772-f8b2-a954-e370-2d8dff60ade2@st.com> References: <20191217104135.23554-1-peter.ujfalusi@ti.com> <84946ffd-8e90-7b6a-6667-a10e27d31655@st.com> <8229c7ed-b513-6bf8-5684-60d87a92d41f@st.com> In-Reply-To: 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: 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 WSdyZSB3ZWxjb21lLg0KDQpPbiAxLzcvMjAgMTE6MzggQU0sIFBldGVyIFVqZmFsdXNpIHdyb3Rl Og0KPiBIaSBIdWd1ZXMsDQo+IA0KPiBPbiAwNy8wMS8yMDIwIDExLjQ2LCBIdWd1ZXMgRlJVQ0hF VCB3cm90ZToNCj4+IEhpIFBldGVyLA0KPj4NCj4+IElmIG5vdCB0b28gbGF0ZSwgY291bGQgeW91 IGNoYW5nZSB0cmFjZSB0byBvbmx5IHRyaWcgZXJyb3IgdHJhY2Ugd2hlbg0KPj4gZXJyb3IgaXMg bm90ICJwcm9iZSBkZWZlcmVkIiA/IFNlZSBiZWxvdzoNCj4+DQo+PiAtCWNoYW4gPSBkbWFfcmVx dWVzdF9zbGF2ZV9jaGFubmVsKCZwZGV2LT5kZXYsICJ0eCIpOw0KPj4gLQlpZiAoIWNoYW4pIHsN Cj4+IC0JCWRldl9pbmZvKCZwZGV2LT5kZXYsICJVbmFibGUgdG8gcmVxdWVzdCBETUEgY2hhbm5l bCwgZGVmZXIgcHJvYmluZ1xuIik7DQo+PiAtCQlyZXR1cm4gLUVQUk9CRV9ERUZFUjsNCj4+ICsJ Y2hhbiA9IGRtYV9yZXF1ZXN0X2NoYW4oJnBkZXYtPmRldiwgInR4Iik7DQo+PiArCWlmIChJU19F UlIoY2hhbikpIHsNCj4+ICsJCWlmIChQVFJfRVJSKGNoYW4pICE9IC1FUFJPQkVfREVGRVIpDQo+ PiArCQkJZGV2X2VycigmcGRldi0+ZGV2LCAiVW5hYmxlIHRvIHJlcXVlc3QgRE1BIGNoYW5uZWxc biIpOw0KPj4gKwkJcmV0dXJuIFBUUl9FUlIoY2hhbik7DQo+IA0KPiBTdXJlLCBJIGRvbid0IGtu b3cgaG93IEkgbWlzc2VkIGl0Lg0KPiANCj4gUmVnYXJkcywNCj4gLSBQw6l0ZXINCj4gDQo+Pg0K Pj4gQmVzdCByZWdhcmRzLA0KPj4gSHVndWVzLg0KPj4NCj4+IE9uIDEyLzE4LzE5IDExOjUyIEFN LCBIdWd1ZXMgRlJVQ0hFVCB3cm90ZToNCj4+PiBUaGFua3MgZm9yIHBhdGNoaW5nIFBldGVyLA0K Pj4+DQo+Pj4gTm8gcmVncmVzc2lvbiBvYnNlcnZlZCBvbiBteSBzaWRlLg0KPj4+DQo+Pj4gQWNr ZWQtYnk6IEh1Z3VlcyBGcnVjaGV0IDxodWd1ZXMuZnJ1Y2hldEBzdC5jb20+DQo+Pj4NCj4+PiBC ZXN0IHJlZ2FyZHMsDQo+Pj4gSHVndWVzLg0KPj4+DQo+Pj4gT24gMTIvMTcvMTkgMTE6NDEgQU0s IFBldGVyIFVqZmFsdXNpIHdyb3RlOg0KPj4+PiBkbWFfcmVxdWVzdF9zbGF2ZV9jaGFubmVsKCkg aXMgYSB3cmFwcGVyIG9uIHRvcCBvZiBkbWFfcmVxdWVzdF9jaGFuKCkNCj4+Pj4gZWF0aW5nIHVw IHRoZSBlcnJvciBjb2RlLg0KPj4+Pg0KPj4+PiBCeSB1c2luZyBkbWFfcmVxdWVzdF9jaGFuKCkg ZGlyZWN0bHkgdGhlIGRyaXZlciBjYW4gc3VwcG9ydCBkZWZlcnJlZA0KPj4+PiBwcm9iaW5nIGFn YWluc3QgRE1BLg0KPj4+Pg0KPj4+PiBTaWduZWQtb2ZmLWJ5OiBQZXRlciBVamZhbHVzaSA8cGV0 ZXIudWpmYWx1c2lAdGkuY29tPg0KPj4+PiAtLS0NCj4+Pj4gIMKgIGRyaXZlcnMvbWVkaWEvcGxh dGZvcm0vc3RtMzIvc3RtMzItZGNtaS5jIHwgNiArKystLS0NCj4+Pj4gIMKgIDEgZmlsZSBjaGFu Z2VkLCAzIGluc2VydGlvbnMoKyksIDMgZGVsZXRpb25zKC0pDQo+Pj4+DQo+Pj4+IGRpZmYgLS1n aXQgYS9kcml2ZXJzL21lZGlhL3BsYXRmb3JtL3N0bTMyL3N0bTMyLWRjbWkuYw0KPj4+PiBiL2Ry aXZlcnMvbWVkaWEvcGxhdGZvcm0vc3RtMzIvc3RtMzItZGNtaS5jDQo+Pj4+IGluZGV4IDkzOTJl MzQwOWZiYS4uNTUzNTE4NzJiMGM3IDEwMDY0NA0KPj4+PiAtLS0gYS9kcml2ZXJzL21lZGlhL3Bs YXRmb3JtL3N0bTMyL3N0bTMyLWRjbWkuYw0KPj4+PiArKysgYi9kcml2ZXJzL21lZGlhL3BsYXRm b3JtL3N0bTMyL3N0bTMyLWRjbWkuYw0KPj4+PiBAQCAtMTkxMCwxMCArMTkxMCwxMCBAQCBzdGF0 aWMgaW50IGRjbWlfcHJvYmUoc3RydWN0IHBsYXRmb3JtX2RldmljZQ0KPj4+PiAqcGRldikNCj4+ Pj4gIMKgwqDCoMKgwqDCoMKgwqDCoCByZXR1cm4gUFRSX0VSUihtY2xrKTsNCj4+Pj4gIMKgwqDC oMKgwqAgfQ0KPj4+PiAtwqDCoMKgIGNoYW4gPSBkbWFfcmVxdWVzdF9zbGF2ZV9jaGFubmVsKCZw ZGV2LT5kZXYsICJ0eCIpOw0KPj4+PiAtwqDCoMKgIGlmICghY2hhbikgew0KPj4+PiArwqDCoMKg IGNoYW4gPSBkbWFfcmVxdWVzdF9jaGFuKCZwZGV2LT5kZXYsICJ0eCIpOw0KPj4+PiArwqDCoMKg IGlmIChJU19FUlIoY2hhbikpIHsNCj4+Pj4gIMKgwqDCoMKgwqDCoMKgwqDCoCBkZXZfaW5mbygm cGRldi0+ZGV2LCAiVW5hYmxlIHRvIHJlcXVlc3QgRE1BIGNoYW5uZWwsIGRlZmVyDQo+Pj4+IHBy b2JpbmdcbiIpOw0KPj4+PiAtwqDCoMKgwqDCoMKgwqAgcmV0dXJuIC1FUFJPQkVfREVGRVI7DQo+ Pj4+ICvCoMKgwqDCoMKgwqDCoCByZXR1cm4gUFRSX0VSUihjaGFuKTsNCj4+Pj4gIMKgwqDCoMKg wqAgfQ0KPj4+PiAgwqDCoMKgwqDCoCBzcGluX2xvY2tfaW5pdCgmZGNtaS0+aXJxbG9jayk7DQo+ Pj4+DQo+IA0KPiANCj4gVGV4YXMgSW5zdHJ1bWVudHMgRmlubGFuZCBPeSwgUG9ya2thbGFua2F0 dSAyMiwgMDAxODAgSGVsc2lua2kuDQo+IFktdHVubnVzL0J1c2luZXNzIElEOiAwNjE1NTIxLTQu IEtvdGlwYWlra2EvRG9taWNpbGU6IEhlbHNpbmtpDQo+IA==