Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030704AbbKDPhM (ORCPT ); Wed, 4 Nov 2015 10:37:12 -0500 Received: from mail-pa0-f51.google.com ([209.85.220.51]:33520 "EHLO mail-pa0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030597AbbKDPhD (ORCPT ); Wed, 4 Nov 2015 10:37:03 -0500 From: Joshua Clayton To: Alessandro Zummo , Alexandre Belloni Cc: rtc-linux@googlegroups.com, linux-kernel@vger.kernel.org, Joshua Clayton Subject: [PATCH 0/9] rtc-2123: access the clock offset feature Date: Wed, 4 Nov 2015 07:36:31 -0800 Message-Id: X-Mailer: git-send-email 2.5.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1544 Lines: 38 Greetings, This series was prompted by a need to adjust the clock rate of the rtc The existing code performs a soft reset during probe, which wipes out several registers including the offset register, which performs adjustments to the clock rate. The first several patches are cleanup, with patch 5 and 6 avoiding the reset, and patch 9 adding a nice sysfs interface to the clock offset. I know that this is not the only rtc to provide a programmable clock offset I wonder if this interface would make a good addition to the rtc api? The rtc chips I have seen list their clock adjustments in parts per million. I went with parts per billion, since the ppm listed was listed with a fractional component. Joshua Clayton (9): rtc-pcf2123: Document all registers and useful bits rtc-pcf2123: clean up reads from the chip rtc-pcf2123: clean up writes to the rtc chip rtc-pcf2123: replace magic numbers with defines rtc-pcf2123: put the chip reset into a function rtc-pcf2123: avoid resetting the clock if possible rtc-pcf2123: allow sysfs to accept hexidecimal rtc-pcf2123: use sysfs groups rtc-pcf2123: adjust the clock rate via sysfs drivers/rtc/rtc-pcf2123.c | 391 ++++++++++++++++++++++++++++++---------------- 1 file changed, 257 insertions(+), 134 deletions(-) -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/