From patchwork Tue Jul 28 13:19:42 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomeu Vizoso X-Patchwork-Id: 6885051 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 4A0B0C05AC for ; Tue, 28 Jul 2015 13:26:21 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 671BB206D2 for ; Tue, 28 Jul 2015 13:26:20 +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 001612065B for ; Tue, 28 Jul 2015 13:26:14 +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 1ZK4rb-0007Ur-Ci; Tue, 28 Jul 2015 13:24:11 +0000 Received: from mail-wi0-x22a.google.com ([2a00:1450:400c:c05::22a]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZK4ok-0004xj-93 for linux-arm-kernel@lists.infradead.org; Tue, 28 Jul 2015 13:21:17 +0000 Received: by wicgb10 with SMTP id gb10so156501825wic.1 for ; Tue, 28 Jul 2015 06:20:54 -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=e0gHlLXJFRANFqFkIjKohofSlfSXyFbvBTjn7KJdXKI=; b=1DtRYCp3whec/Zlke54vPu+K0sHpu8OPM7llwWF8y+SKIQNEj5ZEuq/x96U0q8eJ/v 2ZupGGyzwgAfa1yZW0etIm3vvHI+36314E+PNk5+nu/wjO2jSQF4GOpk0QotRMYtDQRN SuioUViDGdddLGqdk96NJVL/BKRVtKdVw0h9QI3vIle8NOvY6cIEUKcCBW0jskvglZsk IyYjf43tC3DT9/C8D3+k5+8j4YoJu82vC92PojYJiziqVWJIFVW89XbzYBxg11zZWxJe QWSWzHcYHLfN/BB4iQFDdc8TmVaqao1JICfC3l9jXIMvaBRXlFdxopVcX50ck27/1xdr OJzA== X-Received: by 10.194.203.3 with SMTP id km3mr62709644wjc.114.1438089654863; Tue, 28 Jul 2015 06:20:54 -0700 (PDT) Received: from cizrna.lan ([109.72.12.179]) by smtp.gmail.com with ESMTPSA id h9sm33265696wjx.20.2015.07.28.06.20.52 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 28 Jul 2015 06:20:53 -0700 (PDT) From: Tomeu Vizoso To: linux-kernel@vger.kernel.org Subject: [PATCH v2 11/22] drm: Probe panels on demand Date: Tue, 28 Jul 2015 15:19:42 +0200 Message-Id: <1438089593-7696-12-git-send-email-tomeu.vizoso@collabora.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1438089593-7696-1-git-send-email-tomeu.vizoso@collabora.com> References: <1438089593-7696-1-git-send-email-tomeu.vizoso@collabora.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150728_062114_794530_8B3E6E3B X-CRM114-Status: GOOD ( 11.29 ) 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: devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, Arnd Bergmann , Stephen Warren , David Airlie , Linus Walleij , Dmitry Torokhov , "Rafael J. Wysocki" , Tomeu Vizoso , Javier Martinez Canillas , Mark Brown , Thierry Reding , dri-devel@lists.freedesktop.org, 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=-5.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID,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 panel through its firmware 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 v2: None drivers/gpu/drm/drm_panel.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c index 2ef988e037b7..374a964c3842 100644 --- a/drivers/gpu/drm/drm_panel.c +++ b/drivers/gpu/drm/drm_panel.c @@ -80,6 +80,8 @@ struct drm_panel *of_drm_find_panel(struct device_node *np) { struct drm_panel *panel; + fwnode_ensure_device(&np->fwnode); + mutex_lock(&panel_lock); list_for_each_entry(panel, &panel_list, list) {