From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756567Ab2IDIkz (ORCPT ); Tue, 4 Sep 2012 04:40:55 -0400 Received: from pegase1.c-s.fr ([93.17.236.30]:25701 "EHLO mailhub1.si.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754658Ab2IDIkx (ORCPT ); Tue, 4 Sep 2012 04:40:53 -0400 Date: Tue, 4 Sep 2012 10:40:44 +0200 Message-Id: <201209040840.q848eiPg028975@localhost.localdomain> From: Christophe Leroy To: Jean Delvare , Guenter Roeck CC: linux-kernel@vger.kernel.org, lm-sensors@lm-sensors.org Subject: [PATCH 1/2] hwmon/lm70: Allow 4wire SPI bus with LM70 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Removing the 3wire limitation on LM70 as the component also allows operation on 4wire SPI bus Signed-off-by: Christophe Leroy diff -u linux-3.5-vanilla/drivers/hwmon/lm70.c linux-3.5/drivers/hwmon/lm70.c --- linux-3.5-vanilla/drivers/hwmon/lm70.c 2012-07-21 22:58:29.000000000 +0200 +++ linux-3.5/drivers/hwmon/lm70.c 2012-08-25 00:35:40.000000000 +0200 @@ -143,10 +143,6 @@ if (spi->mode & (SPI_CPOL | SPI_CPHA)) return -EINVAL; - /* 3-wire link (shared SI/SO) for LM70 */ - if (chip == LM70_CHIP_LM70 && !(spi->mode & SPI_3WIRE)) - return -EINVAL; - /* NOTE: we assume 8-bit words, and convert to 16 bits manually */ p_lm70 = kzalloc(sizeof *p_lm70, GFP_KERNEL); diff -u linux-3.5-vanilla/Documentation/hwmon/lm70 linux-3.5/Documentation/hwmon/lm70 --- linux-3.5-vanilla/Documentation/hwmon/lm70 2012-07-21 22:58:29.000000000 +0200 +++ linux-3.5/Documentation/hwmon/lm70 2012-08-25 00:37:15.000000000 +0200 @@ -31,9 +31,8 @@ with a "SPI master controller driver", see drivers/spi/spi_lm70llp.c and its associated documentation. -The TMP121/TMP123 are very similar; main differences are 4 wire SPI inter- -face (read only) and 13-bit temperature data (0.0625 degrees celsius reso- -lution). +The TMP121/TMP123 are very similar; main difference is 13-bit temperature +data (0.0625 degrees celsius resolution). Thanks to ---------