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: 476233 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 4D8ED1402B4 for ; Tue, 26 May 2015 01:01:57 +1000 (AEST) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b=oZyKssNn; dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752152AbbEYPB4 (ORCPT ); Mon, 25 May 2015 11:01:56 -0400 Received: from mail-wg0-f41.google.com ([74.125.82.41]:34242 "EHLO mail-wg0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751111AbbEYO6b (ORCPT ); Mon, 25 May 2015 10:58:31 -0400 Received: by wghq2 with SMTP id q2so74982746wgh.1; 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 Cc: =?UTF-8?q?St=C3=A9phane=20Marchesin?= , Thierry Reding , Dmitry Torokhov , Alexander Holler , Grant Likely , Rob Herring , Mark Rutland , Tomeu Vizoso , linux-pwm@vger.kernel.org, linux-kernel@vger.kernel.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> Sender: linux-pwm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pwm@vger.kernel.org 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)