From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932107Ab2ETQY1 (ORCPT ); Sun, 20 May 2012 12:24:27 -0400 Received: from hqemgate04.nvidia.com ([216.228.121.35]:1265 "EHLO hqemgate04.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755468Ab2ETQYY (ORCPT ); Sun, 20 May 2012 12:24:24 -0400 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Sun, 20 May 2012 09:24:19 -0700 From: Laxman Dewangan To: , CC: , Laxman Dewangan Subject: [PATCH 2/3] regulator: tps65910: dt: support when "regulators" node found Date: Sun, 20 May 2012 21:48:49 +0530 Message-ID: <1337530730-16605-3-git-send-email-ldewangan@nvidia.com> X-Mailer: git-send-email 1.7.1.1 In-Reply-To: <1337530730-16605-1-git-send-email-ldewangan@nvidia.com> References: <1337530730-16605-1-git-send-email-ldewangan@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The device tree binding for the tps65910 is described as: tps65911 { reg = <0x2d> ::::::::: regulators { compatible = "ti,tps65911"; ldo1_reg: ldo1 { /** regulator entry */ }; ldo2_reg: ldo2 { /** regulator entry */ }; :::::::::: }; }; Support the regulators functionality only when there is "regulators" child node available for tps65910. Signed-off-by: Laxman Dewangan --- drivers/regulator/tps65910-regulator.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c index 94c1801..0190f29 100644 --- a/drivers/regulator/tps65910-regulator.c +++ b/drivers/regulator/tps65910-regulator.c @@ -1090,6 +1090,10 @@ static struct tps65910_board *tps65910_parse_dt_reg_data( } regulators = of_find_node_by_name(np, "regulators"); + if (!regulators) { + dev_err(&pdev->dev, "regulator node not found\n"); + return NULL; + } switch (tps65910_chip_id(tps65910)) { case TPS65910: -- 1.7.1.1