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=-4.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 80720C04E53 for ; Wed, 15 May 2019 20:04:54 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 4E63820818 for ; Wed, 15 May 2019 20:04:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="S/u0S5+i" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4E63820818 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=sntech.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=8qoApGj1hAxp0uEwhNN07MQfbgG4A7rfBEgJdW6hrl4=; b=S/u0S5+iCQxIwC ubDd1bD4iFfMNvSpqAevoTEjJlTYSc5X03kXRgHI1ZYi9gCEtgv5DOJN8mYyw5Q4oMtSMDygGlc6u I7AlIdL/qAwg1p9WeNYgTIL9MEJ7t6snosNtvZnmXvqBF5dPmW85olrH0tLw/PGYd3B2XWWcBrI2c RDAeWWcCa3DZ6DwCGtP3QPnhWV1dcmYJRwZ1Wg8bvttObUVgfDMKxSUT2vwjVAawDz5buZqKIDsXF C0GgkC51AmdUEN0Bd0RfbC5+L+jWnHm+AqkJRcXEZLQYRjoAVSkCXVzVmNqh7fAUvnaVcIGrwe0S6 j2Y10fo8IJU5AVOn14wQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hR08r-0007XP-DE; Wed, 15 May 2019 20:04:45 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hR08n-0007T8-FZ; Wed, 15 May 2019 20:04:43 +0000 Received: from ip5f5a6320.dynamic.kabel-deutschland.de ([95.90.99.32] helo=diego.localnet) by gloria.sntech.de with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1hR08h-0000bv-3f; Wed, 15 May 2019 22:04:35 +0200 From: Heiko =?ISO-8859-1?Q?St=FCbner?= To: Douglas Anderson Subject: Re: [PATCH 2/2] drm/rockchip: dw_hdmi: Handle suspend/resume Date: Wed, 15 May 2019 22:04:34 +0200 Message-ID: <16767939.RRcxLiLXmc@diego> In-Reply-To: <20190502223808.185180-2-dianders@chromium.org> References: <20190502223808.185180-1-dianders@chromium.org> <20190502223808.185180-2-dianders@chromium.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190515_130441_724426_B36BDAF6 X-CRM114-Status: UNSURE ( 8.84 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-rockchip@lists.infradead.org, David Airlie , Neil Armstrong , Sandy Huang , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Andrzej Hajda , mka@chromium.org, Sean Paul , Laurent Pinchart , Daniel Vetter , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Am Freitag, 3. Mai 2019, 00:38:08 CEST schrieb Douglas Anderson: > On Rockchip rk3288-based Chromebooks when you do a suspend/resume > cycle: > > 1. You lose the ability to detect an HDMI device being plugged in. > > 2. If you're using the i2c bus built in to dw_hdmi then it stops > working. > > Let's call the core dw-hdmi's suspend/resume functions to restore > things. > > NOTE: in downstream Chrome OS (based on kernel 3.14) we used the > "late/early" versions of suspend/resume because we found that the VOP > was sometimes resuming before dw_hdmi and then calling into us before > we were fully resumed. For now I have gone back to the normal > suspend/resume because I can't reproduce the problems. > > Signed-off-by: Douglas Anderson Reviewed-by: Heiko Stuebner _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel