From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_SANE_2 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9D1FCC2D0BF for ; Fri, 13 Dec 2019 08:22:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6F62224658 for ; Fri, 13 Dec 2019 08:22:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="E0OJZXP7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725882AbfLMIWr (ORCPT ); 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Fri, 13 Dec 2019 16:02:52 +0800 Received: from [10.17.3.153] (172.27.4.253) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Fri, 13 Dec 2019 16:03:11 +0800 Message-ID: <1576224191.31822.2.camel@mhfsdcap03> Subject: Re: [PATCH v2, 1/2] drm/mediatek: Fix gamma correction issue From: Yongqiang Niu Reply-To: Yongqiang Niu To: CK Hu CC: Philipp Zabel , Rob Herring , Matthias Brugger , "David Airlie" , Daniel Vetter , Mark Rutland , , , , , Date: Fri, 13 Dec 2019 16:03:11 +0800 In-Reply-To: <1576223336.9817.3.camel@mtksdaap41> References: <1576222132-31586-1-git-send-email-yongqiang.niu@mediatek.com> <1576222132-31586-2-git-send-email-yongqiang.niu@mediatek.com> <1576223336.9817.3.camel@mtksdaap41> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-MTK: N Content-Transfer-Encoding: base64 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org T24gRnJpLCAyMDE5LTEyLTEzIGF0IDE1OjQ4ICswODAwLCBDSyBIdSB3cm90ZToNCj4gSGksIFlv bmdxaWFuZzoNCj4gDQo+IFRoZSB0aXRsZSBpcyB0b28gcm91Z2guIEFueSBidWcgb2YgZ2FtbWEg d291bGQgYmUgdGhpcyB0aXRsZS4gSSB3b3VsZA0KPiBsaWtlIHRoZSB0aXRsZSBzaG93IGV4cGxp Y2l0bHkgd2hhdCBpdCBkb2VzLg0KPiANCj4gT24gRnJpLCAyMDE5LTEyLTEzIGF0IDE1OjI4ICsw ODAwLCBZb25ncWlhbmcgTml1IHdyb3RlOg0KPiA+IGlmIHRoZXJlIGlzIG5vIGdhbW1hIGZ1bmN0 aW9uIGluIHRoZSBjcnRjDQo+ID4gZGlzcGxheSBwYXRoLCBkb24ndCBhZGQgZ2FtbWEgcHJvcGVy dHkNCj4gPiBmb3IgY3J0Yw0KPiA+IA0KPiA+IFNpZ25lZC1vZmYtYnk6IFlvbmdxaWFuZyBOaXUg PHlvbmdxaWFuZy5uaXVAbWVkaWF0ZWsuY29tPg0KPiA+IC0tLQ0KPiA+ICBkcml2ZXJzL2dwdS9k cm0vbWVkaWF0ZWsvbXRrX2RybV9jcnRjLmMgfCAxMCArKysrKysrKy0tDQo+ID4gIDEgZmlsZSBj aGFuZ2VkLCA4IGluc2VydGlvbnMoKyksIDIgZGVsZXRpb25zKC0pDQo+ID4gDQo+ID4gZGlmZiAt LWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9tZWRpYXRlay9tdGtfZHJtX2NydGMuYyBiL2RyaXZlcnMv Z3B1L2RybS9tZWRpYXRlay9tdGtfZHJtX2NydGMuYw0KPiA+IGluZGV4IGNhNGZjNDcuLjlhOGUx ZDQgMTAwNjQ0DQo+ID4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL21lZGlhdGVrL210a19kcm1fY3J0 Yy5jDQo+ID4gKysrIGIvZHJpdmVycy9ncHUvZHJtL21lZGlhdGVrL210a19kcm1fY3J0Yy5jDQo+ ID4gQEAgLTczNCw2ICs3MzQsNyBAQCBpbnQgbXRrX2RybV9jcnRjX2NyZWF0ZShzdHJ1Y3QgZHJt X2RldmljZSAqZHJtX2RldiwNCj4gPiAgCWludCBwaXBlID0gcHJpdi0+bnVtX3BpcGVzOw0KPiA+ ICAJaW50IHJldDsNCj4gPiAgCWludCBpOw0KPiA+ICsJdWludCBnYW1tYV9sdXRfc2l6ZSA9IDA7 DQo+ID4gIA0KPiA+ICAJaWYgKCFwYXRoKQ0KPiA+ICAJCXJldHVybiAwOw0KPiA+IEBAIC03ODUs NiArNzg2LDkgQEAgaW50IG10a19kcm1fY3J0Y19jcmVhdGUoc3RydWN0IGRybV9kZXZpY2UgKmRy bV9kZXYsDQo+ID4gIAkJfQ0KPiA+ICANCj4gPiAgCQltdGtfY3J0Yy0+ZGRwX2NvbXBbaV0gPSBj b21wOw0KPiA+ICsNCj4gPiArCQlpZiAoY29tcC0+ZnVuY3MtPmdhbW1hX3NldCkNCj4gPiArCQkJ Z2FtbWFfbHV0X3NpemUgPSBNVEtfTFVUX1NJWkU7DQo+ID4gIAl9DQo+ID4gIA0KPiA+ICAJZm9y IChpID0gMDsgaSA8IG10a19jcnRjLT5kZHBfY29tcF9ucjsgaSsrKQ0KPiA+IEBAIC04MDUsOCAr ODA5LDEwIEBAIGludCBtdGtfZHJtX2NydGNfY3JlYXRlKHN0cnVjdCBkcm1fZGV2aWNlICpkcm1f ZGV2LA0KPiA+ICAJCQkJTlVMTCwgcGlwZSk7DQo+ID4gIAlpZiAocmV0IDwgMCkNCj4gPiAgCQly ZXR1cm4gcmV0Ow0KPiA+IC0JZHJtX21vZGVfY3J0Y19zZXRfZ2FtbWFfc2l6ZSgmbXRrX2NydGMt PmJhc2UsIE1US19MVVRfU0laRSk7DQo+ID4gLQlkcm1fY3J0Y19lbmFibGVfY29sb3JfbWdtdCgm bXRrX2NydGMtPmJhc2UsIDAsIGZhbHNlLCBNVEtfTFVUX1NJWkUpOw0KPiA+ICsNCj4gPiArCWlm IChnYW1tYV9sdXRfc2l6ZSkNCj4gPiArCQlkcm1fbW9kZV9jcnRjX3NldF9nYW1tYV9zaXplKCZt dGtfY3J0Yy0+YmFzZSwgZ2FtbWFfbHV0X3NpemUpOw0KPiA+ICsJZHJtX2NydGNfZW5hYmxlX2Nv bG9yX21nbXQoJm10a19jcnRjLT5iYXNlLCAwLCBmYWxzZSwgZ2FtbWFfbHV0X3NpemUpOw0KPiAN Cj4gSWYgdGhlcmUgaXMgbm8gZ2FtbWEsIHNoYWxsIHdlIGVuYWJsZSBjb2xvciBtYW5hZ2VtZW50 Pw0KPiANCj4gUmVnYXJkcywNCj4gQ0sNCg0KZHJtX2NydGNfZW5hYmxlX2NvbG9yX21nbXQgd2ls bCBjaGVjayB0aGUgZ2FtbWFfbHV0X3NpemUgcGFyYW1ldGVyLA0KaWYgbm8gZ2FtbWEsIGdhbW1h X2x1dF9zaXplIHdpbGwgYmUgMCwgYW5kIGdhbW1hX2x1dF9zaXplIHdpbGwgbm90IGF0dGNoDQpn YW1tYSBwcm9wZXJ0eSBmb3IgdGhlIGNydGMNCj4gDQo+ID4gIAlwcml2LT5udW1fcGlwZXMrKzsN Cj4gPiAgCW11dGV4X2luaXQoJm10a19jcnRjLT5od19sb2NrKTsNCj4gPiAgDQo+IA0KPiANCg0K