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=-0.3 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 B6D68C31E49 for ; Wed, 19 Jun 2019 13:44:36 +0000 (UTC) Received: from shelob.surriel.com (shelob.surriel.com [96.67.55.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8109521670 for ; Wed, 19 Jun 2019 13:44:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="OIdFgOci" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8109521670 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=fail smtp.mailfrom=kernelnewbies-bounces@kernelnewbies.org Received: from localhost ([::1] helo=shelob.surriel.com) by shelob.surriel.com with esmtp (Exim 4.92) (envelope-from ) id 1hdasw-00017J-DD; Wed, 19 Jun 2019 09:44:22 -0400 Received: from mail-lf1-x142.google.com ([2a00:1450:4864:20::142]) by shelob.surriel.com with esmtps (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.92) (envelope-from ) id 1hdasu-00017D-2g for kernelnewbies@kernelnewbies.org; Wed, 19 Jun 2019 09:44:20 -0400 Received: by mail-lf1-x142.google.com with SMTP id r15so12157439lfm.11 for ; Wed, 19 Jun 2019 06:44:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Sh/qIBw1XKDUdQ0Wxpr8WG15MJA13mpU4YtnzOpaKLE=; b=OIdFgOcig0sQN7irVtXlKzuUYnNpdV1QiD1wZV9NUpIz3rzt9QrMhB2vZdMgO0dDZ5 N05RhZia6MmkDuZ9lReuExcnttV/eCkIHQgXv/bZyL0H2+jP84zT/qvY96zXDf4iJop7 UQyt7pn+TmFRgSRFTdk2qnP0JvNi5N6WNQWx0sWNnI/PczhgPk4YRwlkPDEM98kTV7wX Ei2qA5i40HrzUql+JbtY/4oYdMRtBrcpkVpmBHsd1GrLZcDURYD1zf2IPuovqT1PZ3jA NeBkY8lEZtzL6WQs4D644wb00nPn5IdFpZssFJDs5AGV5X4+jfZu2clZjaHYEiJUIIji Vokg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Sh/qIBw1XKDUdQ0Wxpr8WG15MJA13mpU4YtnzOpaKLE=; b=VphIy4O4KcTHlE+VkzSyc56MM9a41coO9wzdCyOkQeZBPBG2ryx5wrGQDPZvhYUFTR tguo3aRbUAa50kxftYrfgPyzhurWCtK0D5rFTpyy681YQ54xuQdeP2nRrcu2/zwHtroq YJkp2jK88Dqk7BX2xDukRhLco7u6k4jCMGqEYz/9LO0vr2jK9DX8qkA6jSTjwIsDnctN A0YeSfWKFCMdwhzMEFfo1IjPPXsdLqt5ocVSVHIMlJLQquuF4TJs3Dh56KZY1RrCtJcY tUTBLwemnqhPWNIgep1t+ZSqJfxpj4p/4KxJe3UHARL007DkqgMIj45SVhpHYk4KmSEM hGyg== X-Gm-Message-State: APjAAAVFn/ty3qRvNdBkPcm1JD1g7i1IhlIfZl0OigeS0sbkoYhee1UD 9d6xb7vXwVbdVBeh+0t8KgOWk4Zttd0G0q3t/eQStVq+ X-Google-Smtp-Source: APXvYqzIHC2qwwy1WwyVkFuivPy0ti/t0LmJDTX/uQQG/dGgpZBVy8Yf6Ax2JhyVKa5qoMS4Z7Nr8uBXW6Fx5oQqAF8= X-Received: by 2002:a05:6512:29a:: with SMTP id j26mr28443954lfp.44.1560951858594; Wed, 19 Jun 2019 06:44:18 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Fabio Estevam Date: Wed, 19 Jun 2019 10:44:31 -0300 Message-ID: Subject: Re: [IMX] [DRM]: suspend/resume support To: Pintu Agarwal Cc: linux-pm@vger.kernel.org, open list , "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" , Kernelnewbies X-BeenThere: kernelnewbies@kernelnewbies.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Learn about the Linux kernel List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kernelnewbies-bounces@kernelnewbies.org On Wed, Jun 19, 2019 at 10:33 AM Pintu Agarwal wrote: > You can think that the version I am using right now is almost 4.9 itself. "almost 4.9" does not help, sorry. > Upgrading again to higher kernel version is again difficult, also > customer does not want it. dw-hdmi is well supported on i.MX6 with mainline, so you could simply try that. Try booting 5.1.11 on your custom board with a very minimal dts with HDMI support. Then you can test suspend/resume and see if HDMI hangs or not. > Another approach I tried is, installing hdmi {dw-hdmi.ko, > dw_hdmi-imx.ko} as a module, just after the resume. > With this also system hangs during installation of dw_hdmi-imx.ko at > below location: > > imx_drm_driver_load(..) > | > |--> component_bind_all(...) > | > |-> component_bind(ipu) > | > | > ipu_drm_bind(..) > | > |-> ipu_crtc_init(..) > | > |-> ipu_plane_irq(..) > | > | ----> << __HANGS HERE__ >> I am not able to reproduce this hang. As I mentioned yesterday suspend/resume is working just fine. We would be glad to help fixing the hang if you could reproduce it with a mainline kernel. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies