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Tue, 18 Aug 2020 10:41:25 +0800 Received: from [10.16.6.141] (10.16.6.141) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 18 Aug 2020 10:41:24 +0800 Message-ID: <1597718492.6381.6.camel@mszsdaap41> Subject: Re: [PATCH v2] drm/mediatek: dsi: fix scrolling of panel with small hfp or hbp From: Jitao Shi To: Chun-Kuang Hu CC: Rob Herring , Mark Rutland , Matthias Brugger , Daniel Vetter , David Airlie , DRI Development , linux-kernel , , srv_heupstream , , , , "moderated list:ARM/Mediatek SoC support" , Bibby Hsieh , CK Hu , , , Linux ARM Date: Tue, 18 Aug 2020 10:41:32 +0800 In-Reply-To: References: <20200817130640.18021-1-jitao.shi@mediatek.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-TM-SNTS-SMTP: B2EDE1793418E9C320064DD32C4D7E50B37FF645537BA7075AAD17680B2B1B742000:8 X-MTK: N Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gVHVlLCAyMDIwLTA4LTE4IGF0IDA3OjQyICswODAwLCBDaHVuLUt1YW5nIEh1IHdyb3RlOg0K PiBIaSwgSml0YW86DQo+IA0KPiBKaXRhbyBTaGkgPGppdGFvLnNoaUBtZWRpYXRlay5jb20+IOaW vCAyMDIw5bm0OOaciDE35pelIOmAseS4gCDkuIvljYg5OjA35a+r6YGT77yaDQo+ID4NCj4gPiBo b3Jpem9udGFsX2JhY2twb3JjaF9ieXRlIHNob3VsZCBiZSBoYnAgKiBicHAgLSBoYnAgZXh0cmEg Ynl0ZXMuDQo+ID4gU28gcmVtb3ZlIHRoZSB3cm9uZyBzdWJ0cmFjdGlvbiAxMC4NCj4gPg0KPiA+ IFNpZ25lZC1vZmYtYnk6IEppdGFvIFNoaSA8aml0YW8uc2hpQG1lZGlhdGVrLmNvbT4NCj4gPiAt LS0NCj4gPiAgZHJpdmVycy9ncHUvZHJtL21lZGlhdGVrL210a19kc2kuYyB8IDkgKysrKy0tLS0t DQo+ID4gIDEgZmlsZSBjaGFuZ2VkLCA0IGluc2VydGlvbnMoKyksIDUgZGVsZXRpb25zKC0pDQo+ ID4NCj4gPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL21lZGlhdGVrL210a19kc2kuYyBi L2RyaXZlcnMvZ3B1L2RybS9tZWRpYXRlay9tdGtfZHNpLmMNCj4gPiBpbmRleCAyNzBiZjIyYzk4 ZmUuLjVkMDMxZTYzNDU3MSAxMDA2NDQNCj4gPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vbWVkaWF0 ZWsvbXRrX2RzaS5jDQo+ID4gKysrIGIvZHJpdmVycy9ncHUvZHJtL21lZGlhdGVrL210a19kc2ku Yw0KPiA+IEBAIC00NzMsMTQgKzQ3MywxMyBAQCBzdGF0aWMgdm9pZCBtdGtfZHNpX2NvbmZpZ192 ZG9fdGltaW5nKHN0cnVjdCBtdGtfZHNpICpkc2kpDQo+ID4gICAgICAgICBob3Jpem9udGFsX3N5 bmNfYWN0aXZlX2J5dGUgPSAodm0tPmhzeW5jX2xlbiAqIGRzaV90bXBfYnVmX2JwcCAtIDEwKTsN Cj4gDQo+IFNvIHRoaXMgc3VidHJhY3Rpb24gMTAgaXMgY29ycmVjdD8NCj4gDQo+IFJlZ2FyZHMs DQo+IENodW4tS3VhbmcuDQo+IA0KDQpZZXMsIEl0IGlzIHJpZ2h0Lg0KDQpJbiB0aGUgY2VhODYx IGFuZCBkbXQgc3BlYyB0aGUgbWluaSBoc3luYyBpcyA0MCBwaXhlbHMuDQpTbyB0aGUgdm0tPmhz eW5jX2xlbiAqIGRzaV90bXBfYnVmX2JwcCA+PSAxMjAgPiAxMA0KDQpCZXN0IFJlZ2FyZHMNCmpp dGFvDQo+ID4NCj4gPiAgICAgICAgIGlmIChkc2ktPm1vZGVfZmxhZ3MgJiBNSVBJX0RTSV9NT0RF X1ZJREVPX1NZTkNfUFVMU0UpDQo+ID4gLSAgICAgICAgICAgICAgIGhvcml6b250YWxfYmFja3Bv cmNoX2J5dGUgPQ0KPiA+IC0gICAgICAgICAgICAgICAgICAgICAgICh2bS0+aGJhY2tfcG9yY2gg KiBkc2lfdG1wX2J1Zl9icHAgLSAxMCk7DQo+ID4gKyAgICAgICAgICAgICAgIGhvcml6b250YWxf YmFja3BvcmNoX2J5dGUgPSB2bS0+aGJhY2tfcG9yY2ggKiBkc2lfdG1wX2J1Zl9icHA7DQo+ID4g ICAgICAgICBlbHNlDQo+ID4gLSAgICAgICAgICAgICAgIGhvcml6b250YWxfYmFja3BvcmNoX2J5 dGUgPSAoKHZtLT5oYmFja19wb3JjaCArIHZtLT5oc3luY19sZW4pICoNCj4gPiAtICAgICAgICAg ICAgICAgICAgICAgICBkc2lfdG1wX2J1Zl9icHAgLSAxMCk7DQo+ID4gKyAgICAgICAgICAgICAg IGhvcml6b250YWxfYmFja3BvcmNoX2J5dGUgPSAodm0tPmhiYWNrX3BvcmNoICsgdm0tPmhzeW5j X2xlbikgKg0KPiA+ICsgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ZHNpX3RtcF9idWZfYnBwOw0KPiA+DQo+ID4gICAgICAgICBkYXRhX3BoeV9jeWNsZXMgPSB0aW1p bmctPmxweCArIHRpbWluZy0+ZGFfaHNfcHJlcGFyZSArDQo+ID4gLSAgICAgICAgICAgICAgICAg ICAgICAgICB0aW1pbmctPmRhX2hzX3plcm8gKyB0aW1pbmctPmRhX2hzX2V4aXQgKyAzOw0KPiA+ ICsgICAgICAgICAgICAgICAgICAgICAgICAgdGltaW5nLT5kYV9oc196ZXJvICsgdGltaW5nLT5k YV9oc19leGl0Ow0KPiA+DQo+ID4gICAgICAgICBpZiAoZHNpLT5tb2RlX2ZsYWdzICYgTUlQSV9E U0lfTU9ERV9WSURFT19CVVJTVCkgew0KPiA+ICAgICAgICAgICAgICAgICBpZiAoKHZtLT5oZnJv bnRfcG9yY2ggKyB2bS0+aGJhY2tfcG9yY2gpICogZHNpX3RtcF9idWZfYnBwID4NCj4gPiAtLQ0K PiA+IDIuMTIuNQ0KPiA+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fDQo+ID4gTGludXgtbWVkaWF0ZWsgbWFpbGluZyBsaXN0DQo+ID4gTGludXgtbWVkaWF0 ZWtAbGlzdHMuaW5mcmFkZWFkLm9yZw0KPiA+IGh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21h aWxtYW4vbGlzdGluZm8vbGludXgtbWVkaWF0ZWsNCg0K