From patchwork Mon Sep 7 12:23:35 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomeu Vizoso X-Patchwork-Id: 7134821 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D17B1BEEC1 for ; Mon, 7 Sep 2015 12:45:07 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 565B0206B2 for ; Mon, 7 Sep 2015 12:45:02 +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 7C93820678 for ; Mon, 7 Sep 2015 12:45:01 +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 1ZYvlP-0008DS-J5; Mon, 07 Sep 2015 12:43:11 +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 1ZYvlC-0007xU-QF for linux-arm-kernel@bombadil.infradead.org; Mon, 07 Sep 2015 12:43:00 +0000 Received: from mail-wi0-x22a.google.com ([2a00:1450:400c:c05::22a]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZYvTa-00053M-Nt for linux-arm-kernel@lists.infradead.org; Mon, 07 Sep 2015 12:24:47 +0000 Received: by wiclk2 with SMTP id lk2so82446161wic.1 for ; Mon, 07 Sep 2015 05:24:24 -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=HllCLjDZduo50zXlLQ0z9OEazkOYgWxwFE33q4nr760=; b=zbIEECE5e+SYoVdgccqJhPJvJInejBQXY63og67LtHTwfsrvNexUeXF22geZZlVr3x 15iir7+I/Kx3vn4z6kVt43SDWfwKGbzoVf462BWrJjam5mtOe8pJjokFm6Sk/k5YAlO5 z0lAMXrW+IHseybu8GdtKT98XCD+b8VbIQGzBL3dKkRb5nrxZchg4gBt8vBeEV/hmhue GYv44nzmszSK/bOZ6OrKUMKWWbr1DENdK67lH5MDJ6/8VK6U+qvD5HozWrrP9esb4zf0 f8W1UT+69B3G53Jm2dwkx7QKxruecqxNZPlT1OD0vzQbkO9NSjr8lfdRJFmxx2bQ9Yiq b9Tw== X-Received: by 10.194.133.73 with SMTP id pa9mr35299269wjb.148.1441628664366; Mon, 07 Sep 2015 05:24:24 -0700 (PDT) Received: from cizrna.lan ([109.72.12.78]) by smtp.gmail.com with ESMTPSA id cm6sm15438wib.22.2015.09.07.05.24.22 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 07 Sep 2015 05:24:23 -0700 (PDT) From: Tomeu Vizoso To: linux-kernel@vger.kernel.org Subject: [PATCH v4 10/22] drm/tegra: Probe dpaux devices on demand Date: Mon, 7 Sep 2015 14:23:35 +0200 Message-Id: <1441628627-5143-11-git-send-email-tomeu.vizoso@collabora.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1441628627-5143-1-git-send-email-tomeu.vizoso@collabora.com> References: <1441628627-5143-1-git-send-email-tomeu.vizoso@collabora.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150907_132446_828962_524175BE X-CRM114-Status: GOOD ( 14.07 ) X-Spam-Score: -2.4 (--) 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, =?UTF-8?q?Terje=20Bergstr=C3=B6m?= , linux-acpi@vger.kernel.org, Arnd Bergmann , Stephen Warren , David Airlie , Linus Walleij , Dmitry Torokhov , "Rafael J. Wysocki" , Rob Herring , Javier Martinez Canillas , Mark Brown , Thierry Reding , dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org, Alexandre Courbot , 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 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 224a7dc8e4ed..96a2eec7e020 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 @@ -439,6 +440,8 @@ 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)