From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756529Ab2CPCJK (ORCPT ); Thu, 15 Mar 2012 22:09:10 -0400 Received: from mail-pz0-f46.google.com ([209.85.210.46]:57337 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755483Ab2CPCIh (ORCPT ); Thu, 15 Mar 2012 22:08:37 -0400 From: Marc Reilly To: broonie@opensource.wolfsonmicro.com Cc: linux-kernel@vger.kernel.org, Marc Reilly Subject: [PATCH 1/2] regmap: Add support for device with 24 data bits. Date: Fri, 16 Mar 2012 12:11:42 +1100 Message-Id: <1331860303-9483-1-git-send-email-marc@cpdesign.com.au> X-Mailer: git-send-email 1.7.3.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support for devices with 24 data bits. Signed-off-by: Marc Reilly --- drivers/base/regmap/regmap.c | 23 +++++++++++++++++++++++ 1 files changed, 23 insertions(+), 0 deletions(-) diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 253882d..9cfe203 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -126,6 +126,15 @@ static void regmap_format_16(void *buf, unsigned int val) b[0] = cpu_to_be16(val); } +static void regmap_format_24(void *buf, unsigned int val) +{ + u8 *b = buf; + + b[0] = val >> 16; + b[1] = val >> 8; + b[2] = val; +} + static void regmap_format_32(void *buf, unsigned int val) { __be32 *b = buf; @@ -149,6 +158,16 @@ static unsigned int regmap_parse_16(void *buf) return b[0]; } +static unsigned int regmap_parse_24(void *buf) +{ + u8 *b = buf; + unsigned int ret = b[2]; + ret |= ((unsigned int)b[1]) << 8; + ret |= ((unsigned int)b[0]) << 16; + + return ret; +} + static unsigned int regmap_parse_32(void *buf) { __be32 *b = buf; @@ -273,6 +292,10 @@ struct regmap *regmap_init(struct device *dev, map->format.format_val = regmap_format_16; map->format.parse_val = regmap_parse_16; break; + case 24: + map->format.format_val = regmap_format_24; + map->format.parse_val = regmap_parse_24; + break; case 32: map->format.format_val = regmap_format_32; map->format.parse_val = regmap_parse_32; -- 1.7.3.4