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Fri, 13 Dec 2019 15:48:39 +0800 Received: from [172.21.77.4] (172.21.77.4) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Fri, 13 Dec 2019 15:48:46 +0800 Message-ID: <1576223336.9817.3.camel@mtksdaap41> Subject: Re: [PATCH v2, 1/2] drm/mediatek: Fix gamma correction issue From: CK Hu To: Yongqiang Niu CC: Philipp Zabel , Rob Herring , Matthias Brugger , "David Airlie" , Daniel Vetter , Mark Rutland , , , , , Date: Fri, 13 Dec 2019 15:48:56 +0800 In-Reply-To: <1576222132-31586-2-git-send-email-yongqiang.niu@mediatek.com> References: <1576222132-31586-1-git-send-email-yongqiang.niu@mediatek.com> <1576222132-31586-2-git-send-email-yongqiang.niu@mediatek.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-TM-SNTS-SMTP: B2D976F46AAC6B6E1746EF1ECE6AC29281FF83D79D292527E390BA3DF3F8755E2000:8 X-MTK: N Content-Transfer-Encoding: base64 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org SGksIFlvbmdxaWFuZzoNCg0KVGhlIHRpdGxlIGlzIHRvbyByb3VnaC4gQW55IGJ1ZyBvZiBnYW1t YSB3b3VsZCBiZSB0aGlzIHRpdGxlLiBJIHdvdWxkDQpsaWtlIHRoZSB0aXRsZSBzaG93IGV4cGxp Y2l0bHkgd2hhdCBpdCBkb2VzLg0KDQpPbiBGcmksIDIwMTktMTItMTMgYXQgMTU6MjggKzA4MDAs IFlvbmdxaWFuZyBOaXUgd3JvdGU6DQo+IGlmIHRoZXJlIGlzIG5vIGdhbW1hIGZ1bmN0aW9uIGlu IHRoZSBjcnRjDQo+IGRpc3BsYXkgcGF0aCwgZG9uJ3QgYWRkIGdhbW1hIHByb3BlcnR5DQo+IGZv ciBjcnRjDQo+IA0KPiBTaWduZWQtb2ZmLWJ5OiBZb25ncWlhbmcgTml1IDx5b25ncWlhbmcubml1 QG1lZGlhdGVrLmNvbT4NCj4gLS0tDQo+ICBkcml2ZXJzL2dwdS9kcm0vbWVkaWF0ZWsvbXRrX2Ry bV9jcnRjLmMgfCAxMCArKysrKysrKy0tDQo+ICAxIGZpbGUgY2hhbmdlZCwgOCBpbnNlcnRpb25z KCspLCAyIGRlbGV0aW9ucygtKQ0KPiANCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9t ZWRpYXRlay9tdGtfZHJtX2NydGMuYyBiL2RyaXZlcnMvZ3B1L2RybS9tZWRpYXRlay9tdGtfZHJt X2NydGMuYw0KPiBpbmRleCBjYTRmYzQ3Li45YThlMWQ0IDEwMDY0NA0KPiAtLS0gYS9kcml2ZXJz L2dwdS9kcm0vbWVkaWF0ZWsvbXRrX2RybV9jcnRjLmMNCj4gKysrIGIvZHJpdmVycy9ncHUvZHJt L21lZGlhdGVrL210a19kcm1fY3J0Yy5jDQo+IEBAIC03MzQsNiArNzM0LDcgQEAgaW50IG10a19k cm1fY3J0Y19jcmVhdGUoc3RydWN0IGRybV9kZXZpY2UgKmRybV9kZXYsDQo+ICAJaW50IHBpcGUg PSBwcml2LT5udW1fcGlwZXM7DQo+ICAJaW50IHJldDsNCj4gIAlpbnQgaTsNCj4gKwl1aW50IGdh bW1hX2x1dF9zaXplID0gMDsNCj4gIA0KPiAgCWlmICghcGF0aCkNCj4gIAkJcmV0dXJuIDA7DQo+ IEBAIC03ODUsNiArNzg2LDkgQEAgaW50IG10a19kcm1fY3J0Y19jcmVhdGUoc3RydWN0IGRybV9k ZXZpY2UgKmRybV9kZXYsDQo+ICAJCX0NCj4gIA0KPiAgCQltdGtfY3J0Yy0+ZGRwX2NvbXBbaV0g PSBjb21wOw0KPiArDQo+ICsJCWlmIChjb21wLT5mdW5jcy0+Z2FtbWFfc2V0KQ0KPiArCQkJZ2Ft bWFfbHV0X3NpemUgPSBNVEtfTFVUX1NJWkU7DQo+ICAJfQ0KPiAgDQo+ICAJZm9yIChpID0gMDsg aSA8IG10a19jcnRjLT5kZHBfY29tcF9ucjsgaSsrKQ0KPiBAQCAtODA1LDggKzgwOSwxMCBAQCBp bnQgbXRrX2RybV9jcnRjX2NyZWF0ZShzdHJ1Y3QgZHJtX2RldmljZSAqZHJtX2RldiwNCj4gIAkJ CQlOVUxMLCBwaXBlKTsNCj4gIAlpZiAocmV0IDwgMCkNCj4gIAkJcmV0dXJuIHJldDsNCj4gLQlk cm1fbW9kZV9jcnRjX3NldF9nYW1tYV9zaXplKCZtdGtfY3J0Yy0+YmFzZSwgTVRLX0xVVF9TSVpF KTsNCj4gLQlkcm1fY3J0Y19lbmFibGVfY29sb3JfbWdtdCgmbXRrX2NydGMtPmJhc2UsIDAsIGZh bHNlLCBNVEtfTFVUX1NJWkUpOw0KPiArDQo+ICsJaWYgKGdhbW1hX2x1dF9zaXplKQ0KPiArCQlk cm1fbW9kZV9jcnRjX3NldF9nYW1tYV9zaXplKCZtdGtfY3J0Yy0+YmFzZSwgZ2FtbWFfbHV0X3Np emUpOw0KPiArCWRybV9jcnRjX2VuYWJsZV9jb2xvcl9tZ210KCZtdGtfY3J0Yy0+YmFzZSwgMCwg ZmFsc2UsIGdhbW1hX2x1dF9zaXplKTsNCg0KSWYgdGhlcmUgaXMgbm8gZ2FtbWEsIHNoYWxsIHdl IGVuYWJsZSBjb2xvciBtYW5hZ2VtZW50Pw0KDQpSZWdhcmRzLA0KQ0sNCg0KPiAgCXByaXYtPm51 bV9waXBlcysrOw0KPiAgCW11dGV4X2luaXQoJm10a19jcnRjLT5od19sb2NrKTsNCj4gIA0KDQo=