From patchwork Thu Feb 18 10:48:54 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hemanth V X-Patchwork-Id: 80242 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 o1IAn50l029835 for ; Thu, 18 Feb 2010 10:49:06 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757151Ab0BRKtE (ORCPT ); Thu, 18 Feb 2010 05:49:04 -0500 Received: from devils.ext.ti.com ([198.47.26.153]:38610 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751912Ab0BRKtD (ORCPT ); Thu, 18 Feb 2010 05:49:03 -0500 Received: from dlep34.itg.ti.com ([157.170.170.115]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id o1IAmtOm009114 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 18 Feb 2010 04:48:55 -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 o1IAmqY7020444; Thu, 18 Feb 2010 04:48:53 -0600 (CST) Received: from 10.24.255.18 (SquirrelMail authenticated user x0099946); by dbdmail.itg.ti.com with HTTP; Thu, 18 Feb 2010 16:18:54 +0530 (IST) Message-ID: <50566.10.24.255.18.1266490134.squirrel@dbdmail.itg.ti.com> Date: Thu, 18 Feb 2010 16:18:54 +0530 (IST) Subject: [RESEND][PATCH V2 3/3] Add support for Slave mode From: "Hemanth V" To: grant.likely@secretlab.ca Cc: linux-omap@vger.kernel.org, spi-devel-general@lists.sourceforge.net User-Agent: SquirrelMail/1.4.3a X-Mailer: SquirrelMail/1.4.3a MIME-Version: 1.0 X-Priority: 3 (Normal) Importance: Normal 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]); Thu, 18 Feb 2010 10:49:06 +0000 (UTC) diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c index 75a3f04..03d61cf 100644 --- a/drivers/spi/omap2_mcspi.c +++ b/drivers/spi/omap2_mcspi.c @@ -428,6 +428,18 @@ 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); + + omap2_mcspi_ctx[master->bus_num - 1].modulctrl = l; +} + static int mcspi_wait_for_reg_bit(void __iomem *reg, unsigned long bit) {