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=-9.1 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,T_DKIMWL_WL_HIGH,URIBL_BLOCKED, 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 20D44C28CC0 for ; Wed, 29 May 2019 10:26:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EAFF62070D for ; Wed, 29 May 2019 10:26:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="Cuhppf15" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727047AbfE2K0y (ORCPT ); Wed, 29 May 2019 06:26:54 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:41308 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727015AbfE2K0w (ORCPT ); Wed, 29 May 2019 06:26:52 -0400 Received: by mail-pf1-f195.google.com with SMTP id q17so1339285pfq.8 for ; Wed, 29 May 2019 03:26:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=YcCSMOQNkzGaXhDk0okGAy0XqAbQi4G2u6aLWlPaPBw=; b=Cuhppf15fgs+ro5fQzou91thI1XLxU4KioJr8st6A+3rShMcYV8fSqZOp424wsNyS7 Yjt8ZDWKI8t5jY8/w/olvN9NejpmeXI58p0vNnxcpidO9I9OYs9PLq5hcAy2JUfwloW/ 0z63BUjUnVKb52ngcrkoQKYOWPV2zpLSKFZpM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=YcCSMOQNkzGaXhDk0okGAy0XqAbQi4G2u6aLWlPaPBw=; b=GA1pfKPoZwowsehaq6GCEmF3pqmtFXMxKahPkfZhzUGPMHx6GfQs5qY8Q+C+PwYVFN TkbgP+r2qrmL7tjFGySP1PNa4Va2jcRkLAwmQKN3LuSxhbeENCnsknibA4jGfp45NM/C RahWXZvBzj7NOSAnVq+/yY+kNGF+gsLIi7j6sJa3pnWTSED8fIVCUXHdUKUVuXfsZ7km WgMiEVnw5woHS0c8GrscAyz3qqB4KRMonATqmj+BwbdxUlmGbHxNMo744ADAAKeJms3I kJxxNTiLKI0EXClbEd3IjlfOPzPXzViItzOD04Ew95NKCkxrMLjOoxUogXV6UUtD09Lb Dplg== X-Gm-Message-State: APjAAAXZrVXfUI5E1suJzxd3Ivqz+3RZh4y8vuJl12257Ni0/0nbx0K1 6t9Egd0YJkpw+z+joOv6yfUipA== X-Google-Smtp-Source: APXvYqyyaROmC37HXAcccgz51No+HwGj0nRGT99eAspxv1IL1mnTD2gRQ1iaLO7Rvi00xcw+ddOyEQ== X-Received: by 2002:a17:90a:ac0d:: with SMTP id o13mr11037075pjq.139.1559125611164; Wed, 29 May 2019 03:26:51 -0700 (PDT) Received: from hsinyi-z840.tpe.corp.google.com ([2401:fa00:1:10:b852:bd51:9305:4261]) by smtp.gmail.com with ESMTPSA id e12sm18992183pfl.122.2019.05.29.03.26.49 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 29 May 2019 03:26:50 -0700 (PDT) From: Hsin-Yi Wang To: linux-arm-kernel@lists.infradead.org Cc: CK Hu , Philipp Zabel , David Airlie , Daniel Vetter , Matthias Brugger , dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 4/4] drm: mediatek: clear num_pipes when unbind driver Date: Wed, 29 May 2019 18:25:55 +0800 Message-Id: <20190529102555.251579-5-hsinyi@chromium.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190529102555.251579-1-hsinyi@chromium.org> References: <20190529102555.251579-1-hsinyi@chromium.org> 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 num_pipes is used for mutex created in mtk_drm_crtc_create(). If we don't clear num_pipes count, when rebinding driver, the count will be accumulated. From mtk_disp_mutex_get(), there can only be at most 10 mutex id. Clear this number so it starts from 0 in every rebind. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Hsin-Yi Wang --- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c index 8718d123ccaa..bbfe3a464aea 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -400,6 +400,7 @@ static void mtk_drm_unbind(struct device *dev) drm_dev_unregister(private->drm); mtk_drm_kms_deinit(private->drm); drm_dev_put(private->drm); + private->num_pipes = 0; private->drm = NULL; } -- 2.20.1