From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ed1-x541.google.com (mail-ed1-x541.google.com [IPv6:2a00:1450:4864:20::541]) by gabe.freedesktop.org (Postfix) with ESMTPS id B87B66E8A4 for ; Wed, 3 Apr 2019 16:10:13 +0000 (UTC) Received: by mail-ed1-x541.google.com with SMTP id x61so15410673edc.9 for ; Wed, 03 Apr 2019 09:10:13 -0700 (PDT) Date: Wed, 3 Apr 2019 18:10:09 +0200 From: Daniel Vetter Message-ID: <20190403161009.GN2665@phenom.ffwll.local> References: <36a00595c5083adb40d496ff30ebc820ae770474.1552545177.git.harish.chegondi@intel.com> <155254958544.4168.8591390419495126785@skylake-alporthouse-com> <8eb9c24250eb482bda91f1bcc430a21053d16017.camel@intel.com> <155427749709.24691.14658564444185406872@skylake-alporthouse-com> <20190403143410.GM2665@phenom.ffwll.local> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190403143410.GM2665@phenom.ffwll.local> Subject: Re: [igt-dev] [RFC i-g-t 1/1] i915/pm_backlight: turn on dpms before backlight fade out and fade in List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" To: Chris Wilson Cc: "igt-dev@lists.freedesktop.org" , "Taylor, Clinton A" , "Yadav, Jyoti R" List-ID: T24gV2VkLCBBcHIgMDMsIDIwMTkgYXQgMDQ6MzQ6MTBQTSArMDIwMCwgRGFuaWVsIFZldHRlciB3 cm90ZToKPiBPbiBXZWQsIEFwciAwMywgMjAxOSBhdCAwODo0NDo1N0FNICswMTAwLCBDaHJpcyBX aWxzb24gd3JvdGU6Cj4gPiBRdW90aW5nIENoZWdvbmRpLCBIYXJpc2ggKDIwMTktMDQtMDMgMDE6 NDc6MDkpCj4gPiA+IE9uIFRodSwgMjAxOS0wMy0xNCBhdCAwNzo0NiArMDAwMCwgQ2hyaXMgV2ls c29uIHdyb3RlOgo+ID4gPiA+IFF1b3RpbmcgSGFyaXNoIENoZWdvbmRpICgyMDE5LTAzLTE0IDA2 OjQxOjQ4KQo+ID4gPiA+ID4gYmFja2xpZ2h0IGZhZGUgd2l0aCBzdXNwZW5kIHRlc3QgdHVybnMg b2ZmIGRwbXMgd2hpY2ggdHVybnMgb2ZmCj4gPiA+ID4gPiB0aGUgZWRwIGJhY2tsaWdodCBhbmQg cGFuZWwuIFRoZW4gaXQgZG9lcyBhIHJ1bnRpbWUgc3VzcGVuZCwKPiA+ID4gPiA+IHN5c3RlbSBz dXNwZW5kIGFuZCByZXN1bWUuIEFmdGVyIHJlc3VtZSwgaXQgZG9lcyBhIGZhZGUgb3V0IGFuZAo+ ID4gPiA+ID4gZmFkZSBpbiBvZiB0aGUgYmFja2xpZ2h0IGJyaWdodG5lc3MuIEZyb20gdGhlIGRt ZXNnIGxvZ3Mgb2YgdGhlCj4gPiA+ID4gPiBjaSB0ZXN0cyBpdCBhcHBlYXJzIHRoYXQgdGhlIHRl c3QgaXMgc2V0dGluZyB0aGUgYnJpZ2h0bmVzcwo+ID4gPiA+ID4gZXZlbiBiZWZvcmUgdGhlIGVk cCBwYW5lbCBhbmQgYmFja2xpZ2h0IGFyZSB0dXJuZWQgb24gcmVzdWlsdGluZwo+ID4gPiA+ID4g aW4gdGhlIGJyaWdodG5lc3MgdmFsdWVzIHdyaXR0ZW4gYW5kIHJlYWQgdG8gYmUgZGlmZmVyZW50 Lgo+ID4gPiA+ID4gVHVybiBvbiB0aGUgZHBtcyB3aGljaCB0dXJucyBvbiB0aGUgZWRwIHBhbmVs IGFuZCBiYWNrbGlnaHQKPiA+ID4gPiA+IGJlZm9yZSBiYWNrbGlnaHQgZmFkZSBvdXQgYW5kIGZh ZGUgaW4uIFdpdGggdGhpcyBjaGFuZ2UgdGhlCj4gPiA+ID4gPiBmYWRlX3dpdGhfc3VzcGVuZCB0 ZXN0IHBhc3Nlcy4KPiA+ID4gCj4gPiA+IENocmlzLAo+ID4gPiAKPiA+ID4gTXkgY29tbWl0IG1l c3NhZ2Ugd2FzIGNvbmZ1c2luZy4gSSB3aWxsIHJlZG8gdGhlIGNvbW1pdCBtZXNzYWdlIGluIHRo ZQo+ID4gPiBuZXh0IHZlcnNpb24gb2YgbXkgcGF0Y2guCj4gPiA+IAo+ID4gPiA+IAo+ID4gPiA+ IEJ1dCBpcyBpdCBsZWdhbCBmb3IgdGhlIGtlcm5lbCB0byB0aGF0PyBJcyB0aGUga2VybmVsIG1l YW50IHRvCj4gPiA+ID4gcmVzdG9yZQo+ID4gPiA+IHRoZSBwcmV2aW91cyBjb25maWd1cmF0aW9u IHVwb24gcmVzdW1lIG9yIGxlYXZlIGl0IHRvIHVzZXJzcGFjZT8gV2hhdAo+ID4gPiA+IGFib3V0 IGZvciBmYmNvbj8KPiA+ID4gCj4gPiA+IFllcywgdGhlIGtlcm5lbCBpcyBtZWFudCB0byByZXN0 b3JlIHRoZSBwcmV2aW91cyBjb25maWd1cmF0aW9uIHVwb24KPiA+ID4gcmVzdW1lLgo+ID4gCj4g PiBBcmUgeW91IHN1cmU/Cj4gPiAKPiA+IFdlIHNlbmQgYSBob3RwbHVnIHRvIHVzZXJzcGFjZSB0 byB0ZWxsIHRoZW0gdG8gcmVzdG9yZSB0aGUgY29uZmlndXJhdGlvbgo+ID4gYXMgdGhleSBzZWUg Zml0IChiZWNhdXNlIHRoZSBjb25maWd1cmF0aW9uIHdpbGwgb2Z0ZW4gY2hhbmdlKS4gSWYgZmJj b24KPiA+IGlzIGFjdGl2ZSwgaXQgcmVzdG9yZXMgdGhlIGZiY29uIHNjcmVlbiB3aGljaCBjYW4g anVzdCBiZSB0aGUgY29uc2VxdWVuY2UKPiA+IG9mIGhhbmRsaW5nIGl0cyBob3RwbHVnIGV2ZW50 Lgo+IAo+IEJ1bmNoIG9mIGNvbW1lbnRzIGZyb20gaXJjIGRpc2N1c3Npb246Cj4gLSBrZXJuZWwg aXMgc3VwcG9zZWQgdG8gcmVzdG9yZQo+IC0gYnV0IHNpbmNlIHRoZSB0ZXN0IGRvZXMgYSBkcG1z IG9mZiwgd2UgZG8gbmVlZCB0byBkbyBhIGRwbXMgb24KPiAtIGJ1dCB0aGF0J3Mgc2lsbHksIGJl Y2F1c2UgZGVmYWN0byB0aGF0IG1lYW5zIHdlIHRlc3Qgbm90aGluZwo+IAo+IFdvcnNlOgo+IC0g dGhlIHRlc3QgZG9lc24ndCBzaHV0IHVwIGZiY29uLCBzbyB1bmNvbnRyb2xsZWQgZW52Cj4gLSBp dCBhbHNvIGRvZXNuJ3Qgc2V0IHVwIGEgbW9kZSBleHBsaWNpdGx5LCBzbyBhZ2FpbiB1bmNvbnRy b2xsZWQgZW52CgpDb3JyZWN0aW9uOiBJIHdhcyBibGluZCwgaXQncyBhbGwgdGhlcmUgaW4gdGhl IGlndF9maXh0dXJlLiBBcG9sb2dpZXMuCgo+IFJvZHJpZ28gc2hvdWxkbid0IGhhdmUgci1iJ2Vk IHRoaXMgaW1vLiBUaGVyZSdzIGEgbG90IG1vcmUgd29yayBuZWVkZWQKPiBoZXJlIHRoYW4gZHVj dC10YXBpbmcgYSBmZXcgbW9yZSBjb21tYW5kcyBvbiB0b3AsIEkgdGhpbmsgc3RhcnRpbmcgd2l0 aAo+IGEpIHdoYXQgZXhhY3RseSBhcmUgd2UgdHJ5aW5nIHRvIHRlc3QgaGVyZSAodGVzdGluZyBm YW5jeSBlZmZlY3RzIGlzbid0Cj4gdXNlZnVsIGluIHRoZSBjb250ZXh0IG9mIENJLCBubyBvbmUg aXMgbG9va2luZykKPiBiKSBoYXZlIHdlIHNldCB1cCB0aGUgcmlnaHQgc3RhcnRpbmcgY29uZGl0 aW9ucyB0byBhY3R1YWxseSBydW4gdGhhdCB0ZXN0CgpGb3IgdGhlIHRlc3QgaXRzZWxmIEkgdGhp bmsgd2Ugc2hvdWxkIGluc3RlYWQgZHJvcCB0aGUgZHBtcyBvZmYuIFRoZXJlJ3MKbm90IG11Y2gg dG8gdGVzdCByZWFsbHkgaWYgd2Ugc3VzcGVuZCB3aXRoIHRoZSBkaXNwbGF5IG9mZi4gT3IgYXQg bGVhc3Qgd2UKc2hvdWxkIGNoZWNrIGJvdGggd2F5cyBJIHRoaW5rLCBidXQgc3VzcGVuZGluZyB3 aXRoIGRpc3BsYXkgb24gaXMgYSBsb3QKbW9yZSBpbnRlcmVzdGluZy4gQW5kIGZvciB0aGF0IGNh c2UgdGhlIGtlcm5lbCBzaG91bGQgcmVzdW1lIHRoZSBkaXNwbGF5CmZvciB1cyBhZ2Fpbiwgbm90 IGV4cGxpY2l0IGRwbXMgb24gbmVlZGVkLgotRGFuaWVsCi0tIApEYW5pZWwgVmV0dGVyClNvZnR3 YXJlIEVuZ2luZWVyLCBJbnRlbCBDb3Jwb3JhdGlvbgpodHRwOi8vYmxvZy5mZndsbC5jaApfX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwppZ3QtZGV2IG1haWxp bmcgbGlzdAppZ3QtZGV2QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVk ZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2lndC1kZXY=