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=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 B16E7C04AB6 for ; Wed, 29 May 2019 02:46:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 85CE121019 for ; Wed, 29 May 2019 02:46:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=onstation.org header.i=@onstation.org header.b="C9rPPdfa" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725917AbfE2Cqu (ORCPT ); Tue, 28 May 2019 22:46:50 -0400 Received: from onstation.org ([52.200.56.107]:41642 "EHLO onstation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725830AbfE2Cqu (ORCPT ); Tue, 28 May 2019 22:46:50 -0400 Received: from localhost (c-98-239-145-235.hsd1.wv.comcast.net [98.239.145.235]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: masneyb) by onstation.org (Postfix) with ESMTPSA id AF6A73E93F; Wed, 29 May 2019 02:46:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=onstation.org; s=default; t=1559098009; bh=aRBBhy0Kk6XSGsl/Ftb8O8lFKtAxihQWGmXQEY0I06w=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=C9rPPdfaKmSr7mTVb+0Lk2lfnDbgZbDzftRQhz3hjeRFgTNa0pRlOicd50dvk90EX taUjiI1yBvgyypyXxKqtcP+/7WALm3KK7iRwqrpZxCxjplv7JEC7NEX91fCSLCDA4F l27G7XLjh2AtIX3DNrY7JEldf2XaU3DKwU7EsExo= Date: Tue, 28 May 2019 22:46:48 -0400 From: Brian Masney To: Jeffrey Hugo Cc: Linus Walleij , Sean Paul , Rob Herring , Jonathan Marek , Dave Airlie , MSM , "linux-kernel@vger.kernel.org" , "open list:DRM PANEL DRIVERS" , Rob Clark , Daniel Vetter , freedreno@lists.freedesktop.org Subject: Re: [Freedreno] [PATCH RFC v2 0/6] ARM: qcom: initial Nexus 5 display support Message-ID: <20190529024648.GA13436@basecamp> References: <20190509020352.14282-1-masneyb@onstation.org> <20190529011705.GA12977@basecamp> <20190529013713.GA13245@basecamp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On Tue, May 28, 2019 at 07:42:19PM -0600, Jeffrey Hugo wrote: > > > Do you know if the nexus 5 has a video or command mode panel? There > > > is some glitchyness with vblanks and command mode panels. > > > > Its in command mode. I know this because I see two 'pp done time out' > > messages, even on 4.17. Based on my understanding, the ping pong code is > > only applicable for command mode panels. > > Actually, the ping pong element exists in both modes, but 'pp done > time out' is a good indicator that it is command mode. > > Are you also seeing vblank timeouts? Yes, here's a snippet of the first one. [ 2.556014] WARNING: CPU: 0 PID: 5 at drivers/gpu/drm/drm_atomic_helper.c:1429 drm_atomic_helper_wait_for_vblanks.part.1+0x288/0x290 [ 2.556020] [CRTC:49:crtc-0] vblank wait timed out [ 2.556023] Modules linked in: [ 2.556034] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.2.0-rc1-00178-g72c3c1fd5f86-dirty #426 [ 2.556038] Hardware name: Generic DT based system [ 2.556056] Workqueue: events deferred_probe_work_func ... > Do you have busybox? > > Can you run - > sudo busybox devmem 0xFD900614 > sudo busybox devmem 0xFD900714 > sudo busybox devmem 0xFD900814 > sudo busybox devmem 0xFD900914 > sudo busybox devmem 0xFD900A14 # busybox devmem 0xFD900614 0x00020020 # busybox devmem 0xFD900714 0x00000000 # busybox devmem 0xFD900814 0x00000000 # busybox devmem 0xFD900914 0x00000000 # busybox devmem 0xFD900A14 0x00000000 I get the same values with the mainline kernel and 4.17. Brian From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brian Masney Subject: Re: [PATCH RFC v2 0/6] ARM: qcom: initial Nexus 5 display support Date: Tue, 28 May 2019 22:46:48 -0400 Message-ID: <20190529024648.GA13436@basecamp> References: <20190509020352.14282-1-masneyb@onstation.org> <20190529011705.GA12977@basecamp> <20190529013713.GA13245@basecamp> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: freedreno-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Freedreno" To: Jeffrey Hugo Cc: Rob Herring , Jonathan Marek , Dave Airlie , MSM , Linus Walleij , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "open list:DRM PANEL DRIVERS" , Rob Clark , Daniel Vetter , freedreno-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, Sean Paul List-Id: dri-devel@lists.freedesktop.org T24gVHVlLCBNYXkgMjgsIDIwMTkgYXQgMDc6NDI6MTlQTSAtMDYwMCwgSmVmZnJleSBIdWdvIHdy b3RlOgo+ID4gPiBEbyB5b3Uga25vdyBpZiB0aGUgbmV4dXMgNSBoYXMgYSB2aWRlbyBvciBjb21t YW5kIG1vZGUgcGFuZWw/ICBUaGVyZQo+ID4gPiBpcyBzb21lIGdsaXRjaHluZXNzIHdpdGggdmJs YW5rcyBhbmQgY29tbWFuZCBtb2RlIHBhbmVscy4KPiA+Cj4gPiBJdHMgaW4gY29tbWFuZCBtb2Rl LiBJIGtub3cgdGhpcyBiZWNhdXNlIEkgc2VlIHR3byAncHAgZG9uZSB0aW1lIG91dCcKPiA+IG1l c3NhZ2VzLCBldmVuIG9uIDQuMTcuIEJhc2VkIG9uIG15IHVuZGVyc3RhbmRpbmcsIHRoZSBwaW5n IHBvbmcgY29kZSBpcwo+ID4gb25seSBhcHBsaWNhYmxlIGZvciBjb21tYW5kIG1vZGUgcGFuZWxz Lgo+IAo+IEFjdHVhbGx5LCB0aGUgcGluZyBwb25nIGVsZW1lbnQgZXhpc3RzIGluIGJvdGggbW9k ZXMsIGJ1dCAncHAgZG9uZQo+IHRpbWUgb3V0JyBpcyBhIGdvb2QgaW5kaWNhdG9yIHRoYXQgaXQg aXMgY29tbWFuZCBtb2RlLgo+IAo+IEFyZSB5b3UgYWxzbyBzZWVpbmcgdmJsYW5rIHRpbWVvdXRz PwoKWWVzLCBoZXJlJ3MgYSBzbmlwcGV0IG9mIHRoZSBmaXJzdCBvbmUuCgpbICAgIDIuNTU2MDE0 XSBXQVJOSU5HOiBDUFU6IDAgUElEOiA1IGF0IGRyaXZlcnMvZ3B1L2RybS9kcm1fYXRvbWljX2hl bHBlci5jOjE0MjkgZHJtX2F0b21pY19oZWxwZXJfd2FpdF9mb3JfdmJsYW5rcy5wYXJ0LjErMHgy ODgvMHgyOTAKWyAgICAyLjU1NjAyMF0gW0NSVEM6NDk6Y3J0Yy0wXSB2Ymxhbmsgd2FpdCB0aW1l ZCBvdXQKWyAgICAyLjU1NjAyM10gTW9kdWxlcyBsaW5rZWQgaW46ClsgICAgMi41NTYwMzRdIENQ VTogMCBQSUQ6IDUgQ29tbToga3dvcmtlci8wOjAgTm90IHRhaW50ZWQgNS4yLjAtcmMxLTAwMTc4 LWc3MmMzYzFmZDVmODYtZGlydHkgIzQyNgpbICAgIDIuNTU2MDM4XSBIYXJkd2FyZSBuYW1lOiBH ZW5lcmljIERUIGJhc2VkIHN5c3RlbQpbICAgIDIuNTU2MDU2XSBXb3JrcXVldWU6IGV2ZW50cyBk ZWZlcnJlZF9wcm9iZV93b3JrX2Z1bmMKLi4uCgo+IERvIHlvdSBoYXZlIGJ1c3lib3g/Cj4gCj4g Q2FuIHlvdSBydW4gLQo+IHN1ZG8gYnVzeWJveCBkZXZtZW0gMHhGRDkwMDYxNAo+IHN1ZG8gYnVz eWJveCBkZXZtZW0gMHhGRDkwMDcxNAo+IHN1ZG8gYnVzeWJveCBkZXZtZW0gMHhGRDkwMDgxNAo+ IHN1ZG8gYnVzeWJveCBkZXZtZW0gMHhGRDkwMDkxNAo+IHN1ZG8gYnVzeWJveCBkZXZtZW0gMHhG RDkwMEExNAoKIyBidXN5Ym94IGRldm1lbSAweEZEOTAwNjE0CjB4MDAwMjAwMjAKIyBidXN5Ym94 IGRldm1lbSAweEZEOTAwNzE0CjB4MDAwMDAwMDAKIyBidXN5Ym94IGRldm1lbSAweEZEOTAwODE0 CjB4MDAwMDAwMDAKIyBidXN5Ym94IGRldm1lbSAweEZEOTAwOTE0CjB4MDAwMDAwMDAKIyBidXN5 Ym94IGRldm1lbSAweEZEOTAwQTE0CjB4MDAwMDAwMDAKCkkgZ2V0IHRoZSBzYW1lIHZhbHVlcyB3 aXRoIHRoZSBtYWlubGluZSBrZXJuZWwgYW5kIDQuMTcuCgpCcmlhbgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpGcmVlZHJlbm8gbWFpbGluZyBsaXN0CkZy ZWVkcmVub0BsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5v cmcvbWFpbG1hbi9saXN0aW5mby9mcmVlZHJlbm8=