From patchwork Mon May 16 11:41:36 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tarun Kanti DebBarma X-Patchwork-Id: 787682 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter2.kernel.org (8.14.4/8.14.3) with ESMTP id p4GBg3UA010698 for ; Mon, 16 May 2011 11:42:03 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753523Ab1EPLly (ORCPT ); Mon, 16 May 2011 07:41:54 -0400 Received: from devils.ext.ti.com ([198.47.26.153]:48338 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753366Ab1EPLlx (ORCPT ); Mon, 16 May 2011 07:41:53 -0400 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id p4GBfnvm031833 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 16 May 2011 06:41:51 -0500 Received: from dbde70.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id p4GBfiQH006818; Mon, 16 May 2011 17:11:45 +0530 (IST) Received: from dbdp31.itg.ti.com (172.24.170.98) by DBDE70.ent.ti.com (172.24.170.148) with Microsoft SMTP Server id 8.3.106.1; Mon, 16 May 2011 17:11:44 +0530 Received: from localhost.localdomain ([172.24.191.168]) by dbdp31.itg.ti.com (8.13.8/8.13.8) with ESMTP id p4GBfgOK021559; Mon, 16 May 2011 17:11:44 +0530 (IST) From: Tarun Kanti DebBarma To: CC: Charulatha V , Santosh Shilimkar , Kevin Hilman , Tony Lindgren Subject: [RFC PATCH 02/10] ZOOM: QUART: Request reset GPIO Date: Mon, 16 May 2011 17:11:36 +0530 Message-ID: <1305546104-1511-3-git-send-email-tarun.kanti@ti.com> X-Mailer: git-send-email 1.6.0.4 In-Reply-To: <1305546104-1511-1-git-send-email-tarun.kanti@ti.com> References: <1305546104-1511-1-git-send-email-tarun.kanti@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter2.kernel.org [140.211.167.43]); Mon, 16 May 2011 11:42:03 +0000 (UTC) From: Charulatha V Reset GPIO (OMAP_GPIO_152) for QUART in zoom2/zoom3 debug-board is not requested at all. This would lead to problems if this GPIO is wrongly requested. Hence request OMAP GPIO 152 for QUART RESET but do not apply a reset pulse as it would reset QUART and disturb the QUART settings. Signed-off-by: Charulatha V Cc: Santosh Shilimkar Cc: Kevin Hilman Cc: Tony Lindgren Acked-by: Kevin Hilman --- arch/arm/mach-omap2/board-zoom-debugboard.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-omap2/board-zoom-debugboard.c b/arch/arm/mach-omap2/board-zoom-debugboard.c index 007ebdc..a5f62f8 100644 --- a/arch/arm/mach-omap2/board-zoom-debugboard.c +++ b/arch/arm/mach-omap2/board-zoom-debugboard.c @@ -22,6 +22,7 @@ #define ZOOM_SMSC911X_GPIO 158 #define ZOOM_QUADUART_CS 3 #define ZOOM_QUADUART_GPIO 102 +#define ZOOM_QUADUART_RST_GPIO 152 #define QUART_CLK 1843200 #define DEBUG_BASE 0x08000000 #define ZOOM_ETHR_START DEBUG_BASE @@ -110,6 +111,14 @@ static inline void __init zoom_init_quaduart(void) unsigned long cs_mem_base; int quart_gpio = 0; + if (gpio_request_one(ZOOM_QUADUART_RST_GPIO, + GPIOF_OUT_INIT_LOW, + "TL16CP754C GPIO") < 0) { + pr_err("Failed to request GPIO%d for TL16CP754C\n", + ZOOM_QUADUART_RST_GPIO); + return; + } + quart_cs = ZOOM_QUADUART_CS; if (gpmc_cs_request(quart_cs, SZ_1M, &cs_mem_base) < 0) {