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=-9.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 EEABFC433E0 for ; Thu, 9 Jul 2020 14:35:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CB8A02073A for ; Thu, 9 Jul 2020 14:35:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=marek-ca.20150623.gappssmtp.com header.i=@marek-ca.20150623.gappssmtp.com header.b="nBovAMxX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726795AbgGIOf3 (ORCPT ); Thu, 9 Jul 2020 10:35:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47654 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726353AbgGIOf2 (ORCPT ); Thu, 9 Jul 2020 10:35:28 -0400 Received: from mail-qt1-x841.google.com (mail-qt1-x841.google.com [IPv6:2607:f8b0:4864:20::841]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 93AF0C08C5CE for ; Thu, 9 Jul 2020 07:35:27 -0700 (PDT) Received: by mail-qt1-x841.google.com with SMTP id j10so1771838qtq.11 for ; Thu, 09 Jul 2020 07:35:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marek-ca.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=cpCnVG3Ny+sMfK7hbXlrQci+VvCzOJqiP+fTESc3hcY=; b=nBovAMxXOtOlB21HIcXob+wOcVhz/HQ6NeA4GArDhNdMytNKoLxSFBJZybMgitiHf2 agWC1mHylcc/k/qdBAfm/aYT3q0fKOQ98FogTVKA86ka60eiW63deQuJXK4FInJaTE0p j7UmZZG3Vr/I3D6aAYOqj+U+irjAY7zB/zn2VgdK19iiD2bduF3/AOEScqHZZ7lAlKA2 KtQbsMAs1uAPa4kXjTuUZDJKNL7kItc8WLg8sKG7KGC5o5vPuMMDK2uJzZLvmo7E2MOH Zs3eLaWwYGfboMiOsMr+gbvxBVWpetXz23iPH5ugqnrub7yIql2rZ9JHWV+UlWypx6Em 49Qg== 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:mime-version :content-transfer-encoding; bh=cpCnVG3Ny+sMfK7hbXlrQci+VvCzOJqiP+fTESc3hcY=; b=NXDMR16OxHoWUn/zu2jugxC5vMVp4CS06oBKYx8YukZgH2n0omEa3ver80akfx6Xg8 locjwwIhne19INC4O9Yinl5D5bCHT3oNpxgowUes28P4GvZ4/I8X+J//1QLACnMgOXpg Dc+feZVaAGt0v+mm76GAorrociTvY+rfAQlXHDhUJxiZsJvPjFPAFPKmhpoq4PImvtCH Slj8S4nJOV4C+xmqzNFKu55SY9LF62WCQVTW4OnSHTLncuZpItp75Dv7Kibmy+oVmcTc nJYBiRIQr14VNFNq9Fta/IpBxC6jNxctxXJ2lvUZxgccAqBruFL9bXO8h++dtlq3iFFo J+fA== X-Gm-Message-State: AOAM533s4yFXAzRJ5Jw/dW6cpsn/VuL5pTlqFHkoQ2FuZHyYsiKVHGn9 nxLyMiKLoQoMYi072hsDVFt/uA== X-Google-Smtp-Source: ABdhPJyKclkU0SHcqsPhYVrCQfK/o21m329RQOU3cmnglRUoG96k7rSJLAr8n5q3GQFPyk+Vcr14nw== X-Received: by 2002:ac8:36bb:: with SMTP id a56mr65925740qtc.201.1594305326678; Thu, 09 Jul 2020 07:35:26 -0700 (PDT) Received: from localhost.localdomain ([147.253.86.153]) by smtp.gmail.com with ESMTPSA id p7sm3937315qki.61.2020.07.09.07.35.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jul 2020 07:35:25 -0700 (PDT) From: Jonathan Marek To: freedreno@lists.freedesktop.org Cc: Rob Clark , Sean Paul , David Airlie , Daniel Vetter , Jordan Crouse , Bjorn Andersson , Brian Masney , Fabio Estevam , linux-arm-msm@vger.kernel.org (open list:DRM DRIVER FOR MSM ADRENO GPU), dri-devel@lists.freedesktop.org (open list:DRM DRIVER FOR MSM ADRENO GPU), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v2] drm/msm: handle for EPROBE_DEFER for of_icc_get Date: Thu, 9 Jul 2020 10:34:03 -0400 Message-Id: <20200709143404.11876-1-jonathan@marek.ca> X-Mailer: git-send-email 2.26.1 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 Check for errors instead of silently not using icc if the msm driver probes before the interconnect driver. Allow ENODATA for ocmem path, as it is optional and this error is returned when "gfx-mem" path is provided but not "ocmem". Remove the WARN_ON in msm_gpu_cleanup because INIT_LIST_HEAD won't have been called on the list yet when going through the defer error path. Changes in v2: * Changed to not only check for EPROBE_DEFER Signed-off-by: Jonathan Marek --- drivers/gpu/drm/msm/adreno/adreno_gpu.c | 17 ++++++++++++++--- drivers/gpu/drm/msm/msm_gpu.c | 2 -- 2 files changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 89673c7ed473..0f5217202eb5 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -940,12 +940,20 @@ static int adreno_get_pwrlevels(struct device *dev, */ gpu->icc_path = of_icc_get(dev, NULL); } - if (IS_ERR(gpu->icc_path)) + if (IS_ERR(gpu->icc_path)) { + ret = PTR_ERR(gpu->icc_path); gpu->icc_path = NULL; + return ret; + } gpu->ocmem_icc_path = of_icc_get(dev, "ocmem"); - if (IS_ERR(gpu->ocmem_icc_path)) + if (IS_ERR(gpu->ocmem_icc_path)) { + ret = PTR_ERR(gpu->ocmem_icc_path); gpu->ocmem_icc_path = NULL; + /* allow -ENODATA, ocmem icc is optional */ + if (ret != -ENODATA) + return ret; + } return 0; } @@ -996,6 +1004,7 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev, struct adreno_platform_config *config = pdev->dev.platform_data; struct msm_gpu_config adreno_gpu_config = { 0 }; struct msm_gpu *gpu = &adreno_gpu->base; + int ret; adreno_gpu->funcs = funcs; adreno_gpu->info = adreno_info(config->rev); @@ -1007,7 +1016,9 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev, adreno_gpu_config.nr_rings = nr_rings; - adreno_get_pwrlevels(&pdev->dev, gpu); + ret = adreno_get_pwrlevels(&pdev->dev, gpu); + if (ret) + return ret; pm_runtime_set_autosuspend_delay(&pdev->dev, adreno_gpu->info->inactive_period); diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index a22d30622306..ccf9a0dd9706 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -959,8 +959,6 @@ void msm_gpu_cleanup(struct msm_gpu *gpu) DBG("%s", gpu->name); - WARN_ON(!list_empty(&gpu->active_list)); - for (i = 0; i < ARRAY_SIZE(gpu->rb); i++) { msm_ringbuffer_destroy(gpu->rb[i]); gpu->rb[i] = NULL; -- 2.26.1