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 A34CE895B5 for ; Wed, 3 Apr 2019 14:34:14 +0000 (UTC) Received: by mail-ed1-x541.google.com with SMTP id q3so15162115edg.0 for ; Wed, 03 Apr 2019 07:34:14 -0700 (PDT) Date: Wed, 3 Apr 2019 16:34:10 +0200 From: Daniel Vetter Message-ID: <20190403143410.GM2665@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> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <155427749709.24691.14658564444185406872@skylake-alporthouse-com> 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: T24gV2VkLCBBcHIgMDMsIDIwMTkgYXQgMDg6NDQ6NTdBTSArMDEwMCwgQ2hyaXMgV2lsc29uIHdy b3RlOgo+IFF1b3RpbmcgQ2hlZ29uZGksIEhhcmlzaCAoMjAxOS0wNC0wMyAwMTo0NzowOSkKPiA+ IE9uIFRodSwgMjAxOS0wMy0xNCBhdCAwNzo0NiArMDAwMCwgQ2hyaXMgV2lsc29uIHdyb3RlOgo+ ID4gPiBRdW90aW5nIEhhcmlzaCBDaGVnb25kaSAoMjAxOS0wMy0xNCAwNjo0MTo0OCkKPiA+ID4g PiBiYWNrbGlnaHQgZmFkZSB3aXRoIHN1c3BlbmQgdGVzdCB0dXJucyBvZmYgZHBtcyB3aGljaCB0 dXJucyBvZmYKPiA+ID4gPiB0aGUgZWRwIGJhY2tsaWdodCBhbmQgcGFuZWwuIFRoZW4gaXQgZG9l cyBhIHJ1bnRpbWUgc3VzcGVuZCwKPiA+ID4gPiBzeXN0ZW0gc3VzcGVuZCBhbmQgcmVzdW1lLiBB ZnRlciByZXN1bWUsIGl0IGRvZXMgYSBmYWRlIG91dCBhbmQKPiA+ID4gPiBmYWRlIGluIG9mIHRo ZSBiYWNrbGlnaHQgYnJpZ2h0bmVzcy4gRnJvbSB0aGUgZG1lc2cgbG9ncyBvZiB0aGUKPiA+ID4g PiBjaSB0ZXN0cyBpdCBhcHBlYXJzIHRoYXQgdGhlIHRlc3QgaXMgc2V0dGluZyB0aGUgYnJpZ2h0 bmVzcwo+ID4gPiA+IGV2ZW4gYmVmb3JlIHRoZSBlZHAgcGFuZWwgYW5kIGJhY2tsaWdodCBhcmUg dHVybmVkIG9uIHJlc3VpbHRpbmcKPiA+ID4gPiBpbiB0aGUgYnJpZ2h0bmVzcyB2YWx1ZXMgd3Jp dHRlbiBhbmQgcmVhZCB0byBiZSBkaWZmZXJlbnQuCj4gPiA+ID4gVHVybiBvbiB0aGUgZHBtcyB3 aGljaCB0dXJucyBvbiB0aGUgZWRwIHBhbmVsIGFuZCBiYWNrbGlnaHQKPiA+ID4gPiBiZWZvcmUg YmFja2xpZ2h0IGZhZGUgb3V0IGFuZCBmYWRlIGluLiBXaXRoIHRoaXMgY2hhbmdlIHRoZQo+ID4g PiA+IGZhZGVfd2l0aF9zdXNwZW5kIHRlc3QgcGFzc2VzLgo+ID4gCj4gPiBDaHJpcywKPiA+IAo+ ID4gTXkgY29tbWl0IG1lc3NhZ2Ugd2FzIGNvbmZ1c2luZy4gSSB3aWxsIHJlZG8gdGhlIGNvbW1p dCBtZXNzYWdlIGluIHRoZQo+ID4gbmV4dCB2ZXJzaW9uIG9mIG15IHBhdGNoLgo+ID4gCj4gPiA+ IAo+ID4gPiBCdXQgaXMgaXQgbGVnYWwgZm9yIHRoZSBrZXJuZWwgdG8gdGhhdD8gSXMgdGhlIGtl cm5lbCBtZWFudCB0bwo+ID4gPiByZXN0b3JlCj4gPiA+IHRoZSBwcmV2aW91cyBjb25maWd1cmF0 aW9uIHVwb24gcmVzdW1lIG9yIGxlYXZlIGl0IHRvIHVzZXJzcGFjZT8gV2hhdAo+ID4gPiBhYm91 dCBmb3IgZmJjb24/Cj4gPiAKPiA+IFllcywgdGhlIGtlcm5lbCBpcyBtZWFudCB0byByZXN0b3Jl IHRoZSBwcmV2aW91cyBjb25maWd1cmF0aW9uIHVwb24KPiA+IHJlc3VtZS4KPiAKPiBBcmUgeW91 IHN1cmU/Cj4gCj4gV2Ugc2VuZCBhIGhvdHBsdWcgdG8gdXNlcnNwYWNlIHRvIHRlbGwgdGhlbSB0 byByZXN0b3JlIHRoZSBjb25maWd1cmF0aW9uCj4gYXMgdGhleSBzZWUgZml0IChiZWNhdXNlIHRo ZSBjb25maWd1cmF0aW9uIHdpbGwgb2Z0ZW4gY2hhbmdlKS4gSWYgZmJjb24KPiBpcyBhY3RpdmUs IGl0IHJlc3RvcmVzIHRoZSBmYmNvbiBzY3JlZW4gd2hpY2ggY2FuIGp1c3QgYmUgdGhlIGNvbnNl cXVlbmNlCj4gb2YgaGFuZGxpbmcgaXRzIGhvdHBsdWcgZXZlbnQuCgpCdW5jaCBvZiBjb21tZW50 cyBmcm9tIGlyYyBkaXNjdXNzaW9uOgotIGtlcm5lbCBpcyBzdXBwb3NlZCB0byByZXN0b3JlCi0g YnV0IHNpbmNlIHRoZSB0ZXN0IGRvZXMgYSBkcG1zIG9mZiwgd2UgZG8gbmVlZCB0byBkbyBhIGRw bXMgb24KLSBidXQgdGhhdCdzIHNpbGx5LCBiZWNhdXNlIGRlZmFjdG8gdGhhdCBtZWFucyB3ZSB0 ZXN0IG5vdGhpbmcKCldvcnNlOgotIHRoZSB0ZXN0IGRvZXNuJ3Qgc2h1dCB1cCBmYmNvbiwgc28g dW5jb250cm9sbGVkIGVudgotIGl0IGFsc28gZG9lc24ndCBzZXQgdXAgYSBtb2RlIGV4cGxpY2l0 bHksIHNvIGFnYWluIHVuY29udHJvbGxlZCBlbnYKClJvZHJpZ28gc2hvdWxkbid0IGhhdmUgci1i J2VkIHRoaXMgaW1vLiBUaGVyZSdzIGEgbG90IG1vcmUgd29yayBuZWVkZWQKaGVyZSB0aGFuIGR1 Y3QtdGFwaW5nIGEgZmV3IG1vcmUgY29tbWFuZHMgb24gdG9wLCBJIHRoaW5rIHN0YXJ0aW5nIHdp dGgKYSkgd2hhdCBleGFjdGx5IGFyZSB3ZSB0cnlpbmcgdG8gdGVzdCBoZXJlICh0ZXN0aW5nIGZh bmN5IGVmZmVjdHMgaXNuJ3QKdXNlZnVsIGluIHRoZSBjb250ZXh0IG9mIENJLCBubyBvbmUgaXMg bG9va2luZykKYikgaGF2ZSB3ZSBzZXQgdXAgdGhlIHJpZ2h0IHN0YXJ0aW5nIGNvbmRpdGlvbnMg dG8gYWN0dWFsbHkgcnVuIHRoYXQgdGVzdAoKQ2hlZXJzLCBEYW5pZWwKLS0gCkRhbmllbCBWZXR0 ZXIKU29mdHdhcmUgRW5naW5lZXIsIEludGVsIENvcnBvcmF0aW9uCmh0dHA6Ly9ibG9nLmZmd2xs LmNoCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmlndC1k ZXYgbWFpbGluZyBsaXN0CmlndC1kZXZAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaWd0LWRldg==