From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965320Ab2CNVkJ (ORCPT ); Wed, 14 Mar 2012 17:40:09 -0400 Received: from mail-pz0-f52.google.com ([209.85.210.52]:35760 "EHLO mail-pz0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1031032Ab2CNVkB (ORCPT ); Wed, 14 Mar 2012 17:40:01 -0400 From: Marc Reilly To: sameo@linux.intel.com Cc: linux-arm-kernel@lists.infradead.org, spi-devel-general@lists.sourceforge.net, linux-i2c@vger.kernel.org, u.kleine-koenig@pengutronix.de, oskar@scara.com, linux-kernel@vger.kernel.org, broonie@opensource.wolfsonmicro.com, Marc Reilly Subject: [PATCH v3 1/6] regmap: add support for 7_25 format Date: Thu, 15 Mar 2012 07:43:05 +1100 Message-Id: <1331757790-10583-2-git-send-email-marc@cpdesign.com.au> X-Mailer: git-send-email 1.7.3.4 In-Reply-To: <1331757790-10583-1-git-send-email-marc@cpdesign.com.au> References: <1331757790-10583-1-git-send-email-marc@cpdesign.com.au> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds support for devices with 7 address bits and 25 data bits. The initial intended user for this are the mc13xxx mfds in spi mode. (The 25th data bit is actually a dummy bit) Signed-off-by: Marc Reilly --- drivers/base/regmap/regmap.c | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-) diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index be10a4f..62ef0df 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -100,6 +100,14 @@ static void regmap_format_10_14_write(struct regmap *map, out[0] = reg >> 2; } +static void regmap_format_7_25_write(struct regmap *map, + unsigned int reg, unsigned int val) +{ + __be32 *out = map->work_buf; + + *out = (reg << 25) | val; +} + static void regmap_format_8(void *buf, unsigned int val) { u8 *b = buf; @@ -193,6 +201,9 @@ struct regmap *regmap_init(struct device *dev, case 9: map->format.format_write = regmap_format_7_9_write; break; + case 25: + map->format.format_write = regmap_format_7_25_write; + break; default: goto err_map; } -- 1.7.3.4