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=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 0CDBBC433DF for ; Wed, 8 Jul 2020 17:46:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DEF31206DF for ; Wed, 8 Jul 2020 17:46:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=cerno.tech header.i=@cerno.tech header.b="ExGHd29F"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="tAfmDmsm" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726912AbgGHRnU (ORCPT ); Wed, 8 Jul 2020 13:43:20 -0400 Received: from wnew4-smtp.messagingengine.com ([64.147.123.18]:38969 "EHLO wnew4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726874AbgGHRnQ (ORCPT ); Wed, 8 Jul 2020 13:43:16 -0400 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailnew.west.internal (Postfix) with ESMTP id D65852F9; Wed, 8 Jul 2020 13:43:14 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute4.internal (MEProxy); Wed, 08 Jul 2020 13:43:15 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cerno.tech; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm3; bh=3s7A79hlJ6aoT TArQxLfI/bgm5kubVGhL2NYCp3KEL8=; b=ExGHd29FPMPpLEofb2OW1vdLBxwLx 8BThsw2+PokH1WKRCXFgxEuvB/FhbXlpVaI61llj+Hw1UZhcEsWNZicjQFLDRWvB ZkwN7VLreEjhcXr0Xn0GaBmvhCdQ85gdBVB7lHl3U+UViInDii3rCbr9WK/il40N s1mdQ+ZcEAboqnB6fUjGeVvjgbjg06NJDLLRICiUEtP04PE5875JchhYX/thHV+z P7wCtlp8z55w95vQHnGGTg8oJT6BMVg8Yd5a7B5xMGIjuNqpQIb5RGCBOrkdVgLP GrFsMVhooL8PQGmxkWu5tTWpfLD5LD6CB6uixl4SZLzCvYuo+YwpcVPgQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm3; bh=3s7A79hlJ6aoTTArQxLfI/bgm5kubVGhL2NYCp3KEL8=; b=tAfmDmsm X+nstJiwVkyMSkzINkPzOGV30UF3sX5eieaDErLHMvCrSOXSo7MBre8D/v3Y0hw2 lDPbcf71y20xdZZmWRIwZ3nKEuHp684QZre0i6rVYRv9imM50R3EPu6AdCGnHX6l +rcVwDyMUiXlK5egtRK2Jfahlv6GnnAi0zDsznNmyx3uocojlYcttudIcXCSPYvM /zJXARpm/EC8eQOZs1sTYImJknuayk4pDTfb676rQO/TMALaJbQ1vdxV0w4Y7aR7 uO4th1IEtUJAxxI95e2yiuzL9VSwiC1Gcl3be/jmTSV5TScgMilXZq09W891vmuM AOlltHnu5kZQYQ== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduiedrudejgdduudejucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvufffkffojghfggfgsedtkeertdertddtnecuhfhrohhmpeforgigihhm vgcutfhiphgrrhguuceomhgrgihimhgvsegtvghrnhhordhtvggthheqnecuggftrfgrth htvghrnhepvdekleevfeffkeejhfffueelteelfeduieefheduudfggffhhfffheevveeh hedvnecukfhppeeltddrkeelrdeikedrjeeinecuvehluhhsthgvrhfuihiivgepvdekne curfgrrhgrmhepmhgrihhlfhhrohhmpehmrgigihhmvgestggvrhhnohdrthgvtghh X-ME-Proxy: Received: from localhost (lfbn-tou-1-1502-76.w90-89.abo.wanadoo.fr [90.89.68.76]) by mail.messagingengine.com (Postfix) with ESMTPA id 1F68B3280063; Wed, 8 Jul 2020 13:43:14 -0400 (EDT) From: Maxime Ripard To: Nicolas Saenz Julienne , Eric Anholt Cc: dri-devel@lists.freedesktop.org, linux-rpi-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Dave Stevenson , Tim Gover , Phil Elwell , Maxime Ripard Subject: [PATCH v4 30/78] drm/vc4: crtc: Clear the PixelValve FIFO on disable Date: Wed, 8 Jul 2020 19:41:38 +0200 Message-Id: X-Mailer: git-send-email 2.26.2 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In order to avoid a stale pixel getting stuck on mode change or a disable / enable cycle, we need to make sure to flush the PV FIFO on disable. Signed-off-by: Maxime Ripard --- drivers/gpu/drm/vc4/vc4_crtc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index 7b178d67187f..13fe0e370fb3 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -408,8 +408,7 @@ static void vc4_crtc_atomic_disable(struct drm_crtc *crtc, if (vc4_encoder->post_crtc_disable) vc4_encoder->post_crtc_disable(encoder); - CRTC_WRITE(PV_CONTROL, CRTC_READ(PV_CONTROL) & ~PV_CONTROL_EN); - + vc4_crtc_pixelvalve_reset(crtc); vc4_hvs_atomic_disable(crtc, old_state); if (vc4_encoder->post_crtc_powerdown) -- git-series 0.9.1