From patchwork Wed Feb 3 10:22:06 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hemanth V X-Patchwork-Id: 76677 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o13AMH7s018395 for ; Wed, 3 Feb 2010 10:22:17 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932428Ab0BCKWQ (ORCPT ); Wed, 3 Feb 2010 05:22:16 -0500 Received: from comal.ext.ti.com ([198.47.26.152]:45899 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932276Ab0BCKWQ (ORCPT ); Wed, 3 Feb 2010 05:22:16 -0500 Received: from dlep34.itg.ti.com ([157.170.170.115]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id o13AM65i026434 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 3 Feb 2010 04:22:06 -0600 Received: from dbdmail.itg.ti.com (localhost [127.0.0.1]) by dlep34.itg.ti.com (8.13.7/8.13.7) with ESMTP id o13AM30r026563; Wed, 3 Feb 2010 04:22:04 -0600 (CST) Received: from 10.24.255.17 (SquirrelMail authenticated user x0099946); by dbdmail.itg.ti.com with HTTP; Wed, 3 Feb 2010 15:52:06 +0530 (IST) Message-ID: <9735.10.24.255.17.1265192526.squirrel@dbdmail.itg.ti.com> Date: Wed, 3 Feb 2010 15:52:06 +0530 (IST) Subject: [PATCH V2 3/3] Add support for Slave mode From: "Hemanth V" To: spi-devel-general@lists.sourceforge.net Cc: linux-omap@vger.kernel.org, dbrownell@users.sourceforge.net, grant.likely@secretlab.ca User-Agent: SquirrelMail/1.4.3a X-Mailer: SquirrelMail/1.4.3a MIME-Version: 1.0 X-Priority: 3 (Normal) Importance: Normal References: In-Reply-To: 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-4.2.3 (demeter.kernel.org [140.211.167.41]); Wed, 03 Feb 2010 10:22:17 +0000 (UTC) diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c index d8e8ea0..f6041bf 100644 --- a/drivers/spi/omap2_mcspi.c +++ b/drivers/spi/omap2_mcspi.c @@ -428,6 +428,16 @@ static void omap2_mcspi_set_master_mode(struct spi_master *master) omap2_mcspi_ctx[master->bus_num - 1].modulctrl = l; } +static void omap2_mcspi_set_slave_mode(struct spi_master *master) +{ + u32 l; + + l = mcspi_read_reg(master, OMAP2_MCSPI_MODULCTRL); + MOD_REG_BIT(l, OMAP2_MCSPI_MODULCTRL_STEST, 0); + MOD_REG_BIT(l, OMAP2_MCSPI_MODULCTRL_MS, 1); + mcspi_write_reg(master, OMAP2_MCSPI_MODULCTRL, l); +} + static int mcspi_wait_for_reg_bit(void __iomem *reg, unsigned long bit) { unsigned long timeout; @@ -827,10 +837,11 @@ static int omap2_mcspi_setup_transfer(struct spi_device