From mboxrd@z Thu Jan 1 00:00:00 1970 From: Inki Dae Subject: Re: exynos boot falures in linux-next Date: Tue, 18 Nov 2014 11:30:18 +0900 Message-ID: <546AAF3A.5090604@samsung.com> References: <7hoas54y7k.fsf@deeprootsystems.com> <7hlhn9zcse.fsf@deeprootsystems.com> <546A83D6.9060504@collabora.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mailout2.samsung.com ([203.254.224.25]:23162 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752045AbaKRCa0 convert rfc822-to-8bit (ORCPT ); Mon, 17 Nov 2014 21:30:26 -0500 Received: from epcpsbgr2.samsung.com (u142.gpu120.samsung.co.kr [203.254.230.142]) by mailout2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0NF7009J1QYJ3J70@mailout2.samsung.com> for linux-samsung-soc@vger.kernel.org; Tue, 18 Nov 2014 11:30:19 +0900 (KST) In-reply-to: <546A83D6.9060504@collabora.co.uk> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: Javier Martinez Canillas Cc: Kevin Hilman , linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel-build-reports@lists.linaro.org, Olof Johansson , Arnd Bergmann Hello all, On 2014=EB=85=84 11=EC=9B=94 18=EC=9D=BC 08:25, Javier Martinez Canilla= s wrote: > Hello Kevin, >=20 > On 11/17/2014 11:24 PM, Kevin Hilman wrote: >> >> As might have been expected, reverting the change that enables the >> DRM/display options in exynos_defconfig fixes the problem. >> >> Kevin >> >=20 > I'm sorry for causing a boot failure but when I first posted that pat= ch, > the Exynos DRM driver was working correctly (at least on the Exynos b= oards > I've access to) so it seems the regression was introduced while the p= atch > was posted but not yet picked. >=20 > I'm not sure what is the correct step in this case but I'm OK with > reverting the patch until the Exynos DRM driver bug is fixed. I found out a bug of Exynos DRM, which is infinite loop issue incurred by -EPROBE_DEFER. I thought that we resolved this issue with some fixup= s but not yet. The problem is because -EPROBE_DEFER is returned in case o= f adding a component of a crtc device but one of a connector device. I will fix it up soon. Thanks for report, Inki Dae >=20 > Best regards, > Javier > -- > To unsubscribe from this list: send the line "unsubscribe linux-samsu= ng-soc" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >=20 From mboxrd@z Thu Jan 1 00:00:00 1970 From: inki.dae@samsung.com (Inki Dae) Date: Tue, 18 Nov 2014 11:30:18 +0900 Subject: exynos boot falures in linux-next In-Reply-To: <546A83D6.9060504@collabora.co.uk> References: <7hoas54y7k.fsf@deeprootsystems.com> <7hlhn9zcse.fsf@deeprootsystems.com> <546A83D6.9060504@collabora.co.uk> Message-ID: <546AAF3A.5090604@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hello all, On 2014? 11? 18? 08:25, Javier Martinez Canillas wrote: > Hello Kevin, > > On 11/17/2014 11:24 PM, Kevin Hilman wrote: >> >> As might have been expected, reverting the change that enables the >> DRM/display options in exynos_defconfig fixes the problem. >> >> Kevin >> > > I'm sorry for causing a boot failure but when I first posted that patch, > the Exynos DRM driver was working correctly (at least on the Exynos boards > I've access to) so it seems the regression was introduced while the patch > was posted but not yet picked. > > I'm not sure what is the correct step in this case but I'm OK with > reverting the patch until the Exynos DRM driver bug is fixed. I found out a bug of Exynos DRM, which is infinite loop issue incurred by -EPROBE_DEFER. I thought that we resolved this issue with some fixups but not yet. The problem is because -EPROBE_DEFER is returned in case of adding a component of a crtc device but one of a connector device. I will fix it up soon. Thanks for report, Inki Dae > > Best regards, > Javier > -- > To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in > the body of a message to majordomo at vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >