From patchwork Wed Jun 10 09:26:26 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lokesh Vutla X-Patchwork-Id: 6578381 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 72B4B9F326 for ; Wed, 10 Jun 2015 09:41:34 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 98ADD20582 for ; Wed, 10 Jun 2015 09:41:33 +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 8E8F120576 for ; Wed, 10 Jun 2015 09:41:32 +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 1Z2cSn-000259-GN; Wed, 10 Jun 2015 09:38:25 +0000 Received: from devils.ext.ti.com ([198.47.26.153]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Z2cK7-0002JD-Vz for linux-arm-kernel@lists.infradead.org; Wed, 10 Jun 2015 09:29:29 +0000 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id t5A9T5gW001552; Wed, 10 Jun 2015 04:29:05 -0500 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id t5A9T5vq023086; Wed, 10 Jun 2015 04:29:05 -0500 Received: from dflp32.itg.ti.com (10.64.6.15) by DFLE73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.3.224.2; Wed, 10 Jun 2015 04:29:04 -0500 Received: from a0131933.apr.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id t5A9SsPE025025; Wed, 10 Jun 2015 04:29:03 -0500 From: Lokesh Vutla To: , Subject: [PATCH 3/3] ARM: AMx3xx: hwmod: RTC: Add lock and unlock functions Date: Wed, 10 Jun 2015 14:56:26 +0530 Message-ID: <1433928386-24891-4-git-send-email-lokeshvutla@ti.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1433928386-24891-1-git-send-email-lokeshvutla@ti.com> References: <1433928386-24891-1-git-send-email-lokeshvutla@ti.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150610_022928_276616_8F002BC0 X-CRM114-Status: UNSURE ( 7.53 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -5.0 (-----) Cc: t-kristo@ti.com, lokeshvutla@ti.com, linux-omap@vger.kernel.org, nsekhar@ti.com, linux-arm-kernel@lists.infradead.org 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable 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 RTC IP have kicker feature which prevents spurious writes to its registers. In order to write into any of the RTC registers, KICK values has to be written to KICK registers. omap_hwmod_rtc_unlock/lock functions writes into these KICK registers inorder to lock and unlock RTC registers. This patch hooks omap_hwmod_rtc_unlock/lock functions into RTC hwmod, so that SYSCONFIG register is updated properly. Signed-off-by: Lokesh Vutla --- arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c index cabc569..2d92958 100644 --- a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c @@ -904,6 +904,8 @@ static struct omap_hwmod_class_sysconfig am33xx_rtc_sysc = { static struct omap_hwmod_class am33xx_rtc_hwmod_class = { .name = "rtc", .sysc = &am33xx_rtc_sysc, + .unlock = &omap_hwmod_rtc_unlock, + .lock = &omap_hwmod_rtc_lock, }; struct omap_hwmod am33xx_rtc_hwmod = {