From patchwork Tue Mar 10 12:39:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 184350 Delivered-To: patch@linaro.org Received: by 2002:a92:1f12:0:0:0:0:0 with SMTP id i18csp684597ile; Tue, 10 Mar 2020 06:02:16 -0700 (PDT) X-Google-Smtp-Source: ADFU+vuYwt+OcKI3PWERafc8adXZ5718fAzMsuSggJ2ASvZYlihAVZ27cVKEFDChOH1LCavhvEVd X-Received: by 2002:a17:902:a409:: with SMTP id p9mr20956838plq.211.1583845336595; Tue, 10 Mar 2020 06:02:16 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1583845336; cv=none; d=google.com; s=arc-20160816; b=xGm4ULiQ1V9j+BVL1uYH1yksGNp2HwLtXnUtwXaLFMbBTMm20JGpTXV+8Y6b0HOx/Y fPZd+LzZN3NskR+15XLFAuoq2Gedd68Jl/IslTpjEP1b1b8Gwly8xFpyBHSmU9IrfjaJ 8aIQfFD6Q9/Y8CkZEqJ92liNznPx+DlfxTFg7Xmvchzvx4anqfxm4CJYvc2GEayoNJvT tJaM0WG70ELKBZ+gm1ShQx3aE/tU2EUGM91n8zH7ip3Nydld8D6reK259Ez8i3yzTIj4 NSoWMRu3HEjZ52EOX+a50BNgGI5hMaa8FtEEYPoUIc0xIKixUlKilLoBucXZf0GDODzf CuAQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:cc:list-subscribe :list-help:list-post:list-archive:list-unsubscribe:list-id :precedence:mime-version:user-agent:references:in-reply-to :message-id:date:subject:to:from:dkim-signature:delivered-to; bh=jMC7Fbs8QFU+Lz0y22ouaXqUfxz7X+g5KOr6oPWXfiQ=; b=uI+uVEyPiMISnUKXbHAroh0jwX1dk8tyTv1oxkHa+itH36yv4mLmfDb0V8D/hn9Oli +o7mLe3WGVyMfRn4GE6YMdH07SCqEBQGeLS00/AIsfNkjLf82mvKBNxUY1UnVoyEN6f6 eafoKq/dIEIVMgNyfuTxDAp+b7aB/2FOr9UyZZFaL+8vwLXU/Z00shk1MN+RYJToHqQ0 adsz74qnsKnLQs9REAGPTO22z164/R63K9fJbEzIhiGrjjCfpvQcJ2G0rtYGnbGrPzoM DqVcbw7VWzZZWLYRM4ReRfP/tdTtv90a98Bav/tv32auurDTyh/0UQoTGA/kmdZ8NMy2 zFkg== ARC-Authentication-Results: i=1; mx.google.com; dkim=neutral (body hash did not verify) header.i=@kernel.org header.s=default header.b=PFep8quA; spf=pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 2610:10:20:722:a800:ff:fe36:1795 as permitted sender) smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Return-Path: Received: from gabe.freedesktop.org (gabe.freedesktop.org. [2610:10:20:722:a800:ff:fe36:1795]) by mx.google.com with ESMTPS id v15si16488384pgc.463.2020.03.10.06.02.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Mar 2020 06:02:16 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 2610:10:20:722:a800:ff:fe36:1795 as permitted sender) client-ip=2610:10:20:722:a800:ff:fe36:1795; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@kernel.org header.s=default header.b=PFep8quA; spf=pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 2610:10:20:722:a800:ff:fe36:1795 as permitted sender) smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A07E389DB4; Tue, 10 Mar 2020 13:02:15 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9D3D789DB4 for ; Tue, 10 Mar 2020 13:02:14 +0000 (UTC) Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 03B1320409; Tue, 10 Mar 2020 13:02:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583845334; bh=AVzm+BISmI/wJXjIKEQkgYUROhyHeNW4UtDhWxsdGk0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PFep8quAmuiL7YNiBfZDgAZFeQQsLkQS+IDx2w/pGFwFgaKnLY5zOlMDUUsW0QiPb 47UfeFuBEARVaJgF+vHrqYj3YRlZvdas1MHR+cA8fbxFhfcchm5fG8rQNlYboVAzNG PJkKid2S0B3OajdGEfI4dMtiXSS+4f6RftACWqdE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Subject: [PATCH 5.5 144/189] drm: kirin: Revert "Fix for hikey620 display offset problem" Date: Tue, 10 Mar 2020 13:39:41 +0100 Message-Id: <20200310123654.404244877@linuxfoundation.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200310123639.608886314@linuxfoundation.org> References: <20200310123639.608886314@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Xinliang Liu , Greg Kroah-Hartman , stable@vger.kernel.org, David Airlie , Xinwei Kong , dri-devel , Chen Feng , Rongrong Zou , Sam Ravnborg Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: John Stultz commit 1b79cfd99ff5127e6a143767b51694a527b3ea38 upstream. This reverts commit ff57c6513820efe945b61863cf4a51b79f18b592. With the commit ff57c6513820 ("drm: kirin: Fix for hikey620 display offset problem") we added support for handling LDI overflows by resetting the hardware. However, its been observed that when we do hit the LDI overflow condition, the irq seems to be screaming, and we do nothing but stream: [drm:ade_irq_handler [kirin_drm]] *ERROR* LDI underflow! over and over to the screen I've tried a few appraoches to avoid this, but none has yet been successful and the cure here is worse then the original disease, so revert this for now. Cc: Xinliang Liu Cc: Rongrong Zou Cc: Xinwei Kong Cc: Chen Feng Cc: Sam Ravnborg Cc: David Airlie Cc: Daniel Vetter Cc: dri-devel Fixes: ff57c6513820 ("drm: kirin: Fix for hikey620 display offset problem") Signed-off-by: John Stultz Acked-by: Xinliang Liu Signed-off-by: Xinliang Liu Link: https://patchwork.freedesktop.org/patch/msgid/20200303163228.52741-1-john.stultz@linaro.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/hisilicon/kirin/kirin_ade_reg.h | 1 - drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 20 -------------------- 2 files changed, 21 deletions(-) _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel --- a/drivers/gpu/drm/hisilicon/kirin/kirin_ade_reg.h +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_ade_reg.h @@ -83,7 +83,6 @@ #define VSIZE_OFST 20 #define LDI_INT_EN 0x741C #define FRAME_END_INT_EN_OFST 1 -#define UNDERFLOW_INT_EN_OFST 2 #define LDI_CTRL 0x7420 #define BPP_OFST 3 #define DATA_GATE_EN BIT(2) --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c @@ -46,7 +46,6 @@ struct ade_hw_ctx { struct clk *media_noc_clk; struct clk *ade_pix_clk; struct reset_control *reset; - struct work_struct display_reset_wq; bool power_on; int irq; @@ -136,7 +135,6 @@ static void ade_init(struct ade_hw_ctx * */ ade_update_bits(base + ADE_CTRL, FRM_END_START_OFST, FRM_END_START_MASK, REG_EFFECTIVE_IN_ADEEN_FRMEND); - ade_update_bits(base + LDI_INT_EN, UNDERFLOW_INT_EN_OFST, MASK(1), 1); } static bool ade_crtc_mode_fixup(struct drm_crtc *crtc, @@ -304,17 +302,6 @@ static void ade_crtc_disable_vblank(stru MASK(1), 0); } -static void drm_underflow_wq(struct work_struct *work) -{ - struct ade_hw_ctx *ctx = container_of(work, struct ade_hw_ctx, - display_reset_wq); - struct drm_device *drm_dev = ctx->crtc->dev; - struct drm_atomic_state *state; - - state = drm_atomic_helper_suspend(drm_dev); - drm_atomic_helper_resume(drm_dev, state); -} - static irqreturn_t ade_irq_handler(int irq, void *data) { struct ade_hw_ctx *ctx = data; @@ -331,12 +318,6 @@ static irqreturn_t ade_irq_handler(int i MASK(1), 1); drm_crtc_handle_vblank(crtc); } - if (status & BIT(UNDERFLOW_INT_EN_OFST)) { - ade_update_bits(base + LDI_INT_CLR, UNDERFLOW_INT_EN_OFST, - MASK(1), 1); - DRM_ERROR("LDI underflow!"); - schedule_work(&ctx->display_reset_wq); - } return IRQ_HANDLED; } @@ -919,7 +900,6 @@ static void *ade_hw_ctx_alloc(struct pla if (ret) return ERR_PTR(-EIO); - INIT_WORK(&ctx->display_reset_wq, drm_underflow_wq); ctx->crtc = crtc; return ctx;