From patchwork Thu Sep 17 12:57:05 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomeu Vizoso X-Patchwork-Id: 7207391 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id CBE8F9F336 for ; Thu, 17 Sep 2015 13:25:14 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D65122088C for ; Thu, 17 Sep 2015 13:25:13 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0522A2084B for ; Thu, 17 Sep 2015 13:25:13 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZcZA4-00071N-FE; Thu, 17 Sep 2015 13:23:40 +0000 Received: from casper.infradead.org ([2001:770:15f::2]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZcZ9R-0006Jz-ET for linux-arm-kernel@bombadil.infradead.org; Thu, 17 Sep 2015 13:23:01 +0000 Received: from mail-wi0-x231.google.com ([2a00:1450:400c:c05::231]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZcYld-0005U2-4t for linux-arm-kernel@lists.infradead.org; Thu, 17 Sep 2015 12:58:26 +0000 Received: by wicgb1 with SMTP id gb1so116794329wic.1 for ; Thu, 17 Sep 2015 05:58:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=NRL729GGYRYpnRQE+Ezjs7cyVUE+LyC4YMg8Er0sqGk=; b=Vc1exw+2Etgc1vWAgoK7dcJsHpuqHYoVga9SrGJhOnW6iSeNQcRNe6Nry/S2Y/J46w bUps3m+Ev9Sy2naJRZWh62wuvTwlkdzLhzFR1QlzPZZ+N1esY4ggF89vPawe+U0Ocwts eYa7eNijUUs2KT6FbTwsFJGGEhzYT/+SdUHNiGl2pEAAF58k7iw1Ez5EBgMUouXBjmU3 +HuKytv7f76Pdqt10W3+hnra49EKLJK8jahLMUW1OYaOXcpn5JRWrBz1cIj5ogT5InIR jScY4+3LBWahVroZ9zGwbcSH5OM35l74NT/anQAUkHqGTwu/wf+cobvU3LwFtKW9R7Gv OW0A== X-Received: by 10.180.8.132 with SMTP id r4mr30902381wia.70.1442494683639; Thu, 17 Sep 2015 05:58:03 -0700 (PDT) Received: from cizrna.lan ([109.72.12.203]) by smtp.gmail.com with ESMTPSA id jr5sm2203032wjc.26.2015.09.17.05.58.01 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 17 Sep 2015 05:58:02 -0700 (PDT) From: Tomeu Vizoso To: linux-kernel@vger.kernel.org Subject: [PATCH v5 11/23] drm/tegra: Probe dpaux devices on demand Date: Thu, 17 Sep 2015 14:57:05 +0200 Message-Id: <1442494637-3674-12-git-send-email-tomeu.vizoso@collabora.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1442494637-3674-1-git-send-email-tomeu.vizoso@collabora.com> References: <1442494637-3674-1-git-send-email-tomeu.vizoso@collabora.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150917_135825_234144_0AD69B11 X-CRM114-Status: GOOD ( 13.14 ) X-Spam-Score: -2.6 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Tomeu Vizoso , devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, Arnd Bergmann , Stephen Warren , Greg Kroah-Hartman , Linus Walleij , Dmitry Torokhov , "Rafael J. Wysocki" , Rob Herring , Javier Martinez Canillas , Mark Brown , Thierry Reding , Alan Stern , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP When looking up a dpaux device through its OF node, probe it if it hasn't already. The goal is to reduce deferred probes to a minimum, as it makes it very cumbersome to find out why a device failed to probe, and can introduce very big delays in when a critical device is probed. Signed-off-by: Tomeu Vizoso --- Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None drivers/gpu/drm/tegra/dpaux.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/tegra/dpaux.c b/drivers/gpu/drm/tegra/dpaux.c index 6aecb6647313..40bdc2a98548 100644 --- a/drivers/gpu/drm/tegra/dpaux.c +++ b/drivers/gpu/drm/tegra/dpaux.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -440,6 +441,8 @@ struct tegra_dpaux *tegra_dpaux_find_by_of_node(struct device_node *np) { struct tegra_dpaux *dpaux; + of_device_probe(np); + mutex_lock(&dpaux_lock); list_for_each_entry(dpaux, &dpaux_list, list)