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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E4B54C2BA4C for ; Wed, 26 Jan 2022 09:37:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=FwjtbeeBLFM/xcJmOMmv40Vb0HmTHG04iExAFbLkYRg=; b=MGJAfvMc2xOIwT fRJlv9BxLtJVXC+FTnwV3TUHJwIh7rwxL2zpSW0YNPI8GoVtLX3ve+znkZvs8FJE3rDV7a/Aa9NTY VaFEz7FSXoq0Dw5C8pLl81olxyRiLM1+2h6kQATX2hXc/GycVTClafgr/WA4tElY6Mr6jUZITaAZ5 auQxyhRIbBTcgfCxCucVAhKn4ZgMc4EP8L58eUGWke2Mmqf3jn0QWSrkU6Q/TOb8eg9/EPS1vtzsD flYIM8Rt6ce3A++WhyWYGEVnzBS+P49yKKCUFvDpiNvpto3ThEkuXV6cCEpRHIQYw9otbu53nBFBw +oUuphS4U7ZPrfuEZn5Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nCeiy-00B0Vf-FB; Wed, 26 Jan 2022 09:36:21 +0000 Received: from sin.source.kernel.org ([145.40.73.55]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nCeir-00B0TW-Eo for linux-arm-kernel@lists.infradead.org; Wed, 26 Jan 2022 09:36:14 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 3B7E7CE1BDA; Wed, 26 Jan 2022 09:36:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8CE56C340E3; Wed, 26 Jan 2022 09:36:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1643189765; bh=aQM0q2S8evodH/WEjYRiOEZ0nH6KQTk5G4P9myouHpM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=hoC8GxKKGjbyi3oyF+tWoyK5pREXBctG5k0i6Cu7rwaVIAiI/nHSXZ+UYzs9bNso+ AQcAZA8fVUua1fLe66E1oi9x+S3fIa5J5iNs6nxjgm2XBcb4EJCUdkB4x8ENHKXjB0 /VdxSGKZbx42OeHFGx4MTtEw8jot/yXfBWBLnHJdxzYG/Xf9OyMRsNGko8FwaIghU2 Yv89FofXjkl/jXTFJ1kpzFOSpeB9zV+nKB9XULErezuiFfwerNYtjDlfci+2fZrcQV 92ssUyhhn9n0jLwtDdC/Tqz901gi4MYG1JcjBsGMpW3DB5hazS/96ebVJRSUH1bxgM cTOGCA58QmORA== Date: Wed, 26 Jan 2022 17:35:58 +0800 From: Shawn Guo To: Tim Harvey Cc: Rob Herring , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Adam Ford , Lucas Stach Subject: Re: [PATCH] arm64: dts: imx8mn-venice-gw7902: disable gpu Message-ID: <20220126093558.GL4686@dragon> References: <20211216161227.31960-1-tharvey@gateworks.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20211216161227.31960-1-tharvey@gateworks.com> User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220126_013613_715945_84533151 X-CRM114-Status: GOOD ( 20.51 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Dec 16, 2021 at 08:12:27AM -0800, Tim Harvey wrote: > Since commit 99aa29932271 ("arm64: dts: imx8mn: Enable GPU") > imx8mn-venice-gw7902 will hang during kernel init because it uses > a MIMX8MN5CVTI which does not have a GPU. I do not quite follow on this. i.MX8MN integrates a GPU, and MIMX8MN5CVTI is built on i.MX8MN, correct? If so, how comes MIMX8MN5CVTI doesn't have a GPU? > > Disable pgc_gpumix to work around this. We also disable the GPU devices > that depend on the gpumix power domain and pgc_gpu to avoid them staying > in a probe deferred state forever. Is this an indication that GPU should be disabled in imx8mn.dtsi and enabled board by board? Shawn > > Cc: Adam Ford > Cc: Lucas Stach > Signed-off-by: Tim Harvey > --- > .../boot/dts/freescale/imx8mn-venice-gw7902.dts | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/arch/arm64/boot/dts/freescale/imx8mn-venice-gw7902.dts b/arch/arm64/boot/dts/freescale/imx8mn-venice-gw7902.dts > index 236f425e1570..2d58005d20e4 100644 > --- a/arch/arm64/boot/dts/freescale/imx8mn-venice-gw7902.dts > +++ b/arch/arm64/boot/dts/freescale/imx8mn-venice-gw7902.dts > @@ -220,6 +220,10 @@ > }; > }; > > +&disp_blk_ctrl { > + status = "disabled"; > +}; > + > /* off-board header */ > &ecspi2 { > pinctrl-names = "default"; > @@ -251,6 +255,10 @@ > }; > }; > > +&gpu { > + status = "disabled"; > +}; > + > &i2c1 { > clock-frequency = <100000>; > pinctrl-names = "default"; > @@ -546,6 +554,10 @@ > status = "okay"; > }; > > +&pgc_gpumix { > + status = "disabled"; > +}; > + > /* off-board header */ > &sai3 { > pinctrl-names = "default"; > -- > 2.17.1 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel