From patchwork Mon May 25 14:53:18 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomeu Vizoso X-Patchwork-Id: 6475491 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 140C69F1CC for ; Mon, 25 May 2015 15:10:53 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 54FFC203DB for ; Mon, 25 May 2015 15:10:49 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 73131203AB for ; Mon, 25 May 2015 15:10:48 +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 1Ywtz1-00040G-Mr; Mon, 25 May 2015 15:08:03 +0000 Received: from mail-wg0-x229.google.com ([2a00:1450:400c:c00::229]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Ywtq1-0004dF-HI for linux-arm-kernel@lists.infradead.org; Mon, 25 May 2015 14:58:49 +0000 Received: by wgbgq6 with SMTP id gq6so75003051wgb.3 for ; Mon, 25 May 2015 07:58:29 -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=PZkXANCnqiEqcr8rav6M+3RWpK8IzBooKwuJzn8+Eeo=; b=oZyKssNnQpI+6y9r8/s/UdJEc3ug9ffjqRqJb3lu4wxJOTyWR8rFmCaDYsSo1PZ8sY KWJ3HAQtT5nf2t3FX0JApWCIFUenbH1+SkZDzcxYJ7UnVzPM0kGr0wrfqs6yk/8GMuMQ 3sr2giHAFZ/IbhWRX7yydhubsSaIEydzMwz9CTc4J2Imh+oTbxzoGkEi4tOHlJ1dHKcz 87zg7YWzx0Y6X2+/rpZAs1ICfhYPf7KQRoQ8xH8rGFXntYX/RukZyYdRViyaCSlaNGEb ihe+4L3dsOpcCwXw5Ekji31zzHUos/Ud2iOwCsyOPr2mnm0p3O9lKqFh+kQfeQF82l8s Owow== X-Received: by 10.194.61.82 with SMTP id n18mr38407823wjr.35.1432565909804; Mon, 25 May 2015 07:58:29 -0700 (PDT) Received: from cizrna.lan ([109.72.12.80]) by mx.google.com with ESMTPSA id ez19sm12258917wid.19.2015.05.25.07.58.25 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 25 May 2015 07:58:26 -0700 (PDT) From: Tomeu Vizoso To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 14/21] pwm: Probe PWM chip devices on demand Date: Mon, 25 May 2015 16:53:18 +0200 Message-Id: <1432565608-26036-15-git-send-email-tomeu.vizoso@collabora.com> X-Mailer: git-send-email 2.4.1 In-Reply-To: <1432565608-26036-1-git-send-email-tomeu.vizoso@collabora.com> References: <1432565608-26036-1-git-send-email-tomeu.vizoso@collabora.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150525_075845_762442_81069E74 X-CRM114-Status: UNSURE ( 8.98 ) X-CRM114-Notice: Please train this message. X-Spam-Score: 0.0 (/) Cc: Mark Rutland , linux-pwm@vger.kernel.org, Tomeu Vizoso , Dmitry Torokhov , linux-kernel@vger.kernel.org, Rob Herring , =?UTF-8?q?St=C3=A9phane=20Marchesin?= , Thierry Reding , Grant Likely , Alexander Holler X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 PWM chip through its DT node, ensure that the corresponding device has been registered. Signed-off-by: Tomeu Vizoso --- drivers/pwm/core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index ba34c7d..31f486c 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -479,6 +480,8 @@ static struct pwm_chip *of_node_to_pwmchip(struct device_node *np) { struct pwm_chip *chip; + of_platform_device_ensure(np); + mutex_lock(&pwm_lock); list_for_each_entry(chip, &pwm_chips, list)