Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752516Ab0LUSQU (ORCPT ); Tue, 21 Dec 2010 13:16:20 -0500 Received: from mail-qw0-f46.google.com ([209.85.216.46]:45959 "EHLO mail-qw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751548Ab0LUSQT (ORCPT ); Tue, 21 Dec 2010 13:16:19 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:cc:content-type; b=Ff9KQxjCEyjnlj+ODx35y8Es/xPSggfam2Ez1K8Nh3EOoWKs0l2nvjnsCgh5ptcxFX fJO/5k0i7nIFbe5bwt0q4eSoU3qgS+C3FHCU/dkWG8QMn0d13VXsPdGxueeAXqlyE3Qi cnh6QI2I+F5ejlb0VsSugUQB0nsPMY952nth0= MIME-Version: 1.0 Date: Tue, 21 Dec 2010 19:16:18 +0100 Message-ID: Subject: [PATCHv2 3/11] RTC: Real-time clock module of DA9052 device driver From: dd diasemi To: a.zummo@towertech.it Cc: linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 32757 Lines: 1076 RTC module for DA9052 PMIC device from Dialog Semiconductor. Changes made since last submission: . added missing lock and unlock protection . added rtc alarm enable functionality . driver now uses platform_set_drvdata(). . rtc time getters are now validating parameter Linux Kernel Version: 2.6.34 Signed-off-by: D. Chen --- diff -Naur linux-2.6.34-orig2/drivers/rtc/Kconfig linux-2.6.34/drivers/rtc/Kconfig --- linux-2.6.34-orig2/drivers/rtc/Kconfig 2010-10-13 11:03:52.000000000 +0500 +++ linux-2.6.34/drivers/rtc/Kconfig 2010-10-12 14:21:41.000000000 +0500 @@ -433,6 +433,13 @@ This driver can also be built as a module. If so, the module will be called rtc-cmos. +config RTC_DRV_DA9052 + tristate "Dialog DA9052 RTC" + depends on PMIC_DA9052 + help + Say y here to support the RTC found on + Dialog Semiconductor DA9052 PMIC. + config RTC_DRV_DS1216 tristate "Dallas DS1216" depends on SNI_RM diff -Naur linux-2.6.34-orig2/drivers/rtc/Makefile linux-2.6.34/drivers/rtc/Makefile --- linux-2.6.34-orig2/drivers/rtc/Makefile 2010-10-13 11:03:52.000000000 +0500 +++ linux-2.6.34/drivers/rtc/Makefile 2010-10-12 14:21:29.000000000 +0500 @@ -27,6 +27,7 @@ obj-$(CONFIG_RTC_DRV_BQ4802) += rtc-bq4802.o obj-$(CONFIG_RTC_DRV_CMOS) += rtc-cmos.o obj-$(CONFIG_RTC_DRV_COH901331) += rtc-coh901331.o +obj-$(CONFIG_RTC_DRV_DA9052) += rtc-da9052.o obj-$(CONFIG_RTC_DRV_DM355EVM) += rtc-dm355evm.o obj-$(CONFIG_RTC_DRV_DS1216) += rtc-ds1216.o obj-$(CONFIG_RTC_DRV_DS1286) += rtc-ds1286.o diff -Naur linux-2.6.34-orig2/drivers/rtc/rtc-da9052.c linux-2.6.34/drivers/rtc/rtc-da9052.c --- linux-2.6.34-orig2/drivers/rtc/rtc-da9052.c 1970-01-01 05:00:00.000000000 +0500 +++ linux-2.6.34/drivers/rtc/rtc-da9052.c 2010-10-12 17:44:10.000000000 +0500 @@ -0,0 +1,693 @@ +/* + * Copyright(c) 2009 Dialog Semiconductor Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * rtc-da9052.c: RTC driver for DA9052 + */ + +#include +#include +#include +#include +#include + +#define DRIVER_NAME "da9052-rtc" +#define ENABLE 1 +#define DISABLE 0 + +struct da9052_rtc { + struct rtc_device *rtc; + struct da9052 *da9052; + struct da9052_eh_nb eh_data; + unsigned char is_min_alarm; + unsigned char enable_tick_alarm; + unsigned char enable_clk_buffer; + unsigned char set_osc_trim_freq; +}; + +static int da9052_rtc_enable_alarm(struct da9052 *da9052, unsigned char flag); + +void da9052_rtc_notifier(struct da9052_eh_nb *eh_data, unsigned int event) +{ + struct da9052_rtc *rtc = + container_of(eh_data, struct da9052_rtc, eh_data); + struct da9052_ssc_msg msg; + unsigned int ret; + + /* Check the alarm type - TIMER or TICK */ + msg.addr = DA9052_ALARMMI_REG; + + da9052_lock(rtc->da9052); + ret = rtc->da9052->read(rtc->da9052, &msg); + if (ret != 0) { + da9052_unlock(rtc->da9052); + return; + } + + da9052_unlock(rtc->da9052); + + + if (msg.data & DA9052_ALARMMI_ALARMTYPE) + da9052_rtc_enable_alarm(rtc->da9052, 0); +} + +static int da9052_rtc_validate_parameters(struct rtc_time *rtc_tm) +{ + + if (rtc_tm->tm_sec > DA9052_RTC_SECONDS_LIMIT) + return DA9052_RTC_INVALID_SECONDS; + + if (rtc_tm->tm_min > DA9052_RTC_MINUTES_LIMIT) + return DA9052_RTC_INVALID_MINUTES; + + if (rtc_tm->tm_hour > DA9052_RTC_HOURS_LIMIT) + return DA9052_RTC_INVALID_HOURS; + + if (rtc_tm->tm_mday == 0) + return DA9052_RTC_INVALID_DAYS; + + if ((rtc_tm->tm_mon > DA9052_RTC_MONTHS_LIMIT) || + (rtc_tm->tm_mon == 0)) + return DA9052_RTC_INVALID_MONTHS; + + if (rtc_tm->tm_year > DA9052_RTC_YEARS_LIMIT) + return DA9052_RTC_INVALID_YEARS; + + if ((rtc_tm->tm_mon == FEBRUARY)) { + if (((rtc_tm->tm_year % 4 == 0) && + (rtc_tm->tm_year % 100 != 0)) || + (rtc_tm->tm_year % 400 == 0)) { + if (rtc_tm->tm_mday > 29) + return DA9052_RTC_INVALID_DAYS; + } else if (rtc_tm->tm_mday > 28) { + return DA9052_RTC_INVALID_DAYS; + } + } + + if (((rtc_tm->tm_mon == APRIL) || (rtc_tm->tm_mon == JUNE) || + (rtc_tm->tm_mon == SEPTEMBER) || (rtc_tm->tm_mon == NOVEMBER)) + && (rtc_tm->tm_mday == 31)) { + return DA9052_RTC_INVALID_DAYS; + } + + + return 0; +} + +static int da9052_rtc_settime(struct da9052 *da9052, struct rtc_time *rtc_tm) +{ + + struct da9052_ssc_msg msg_arr[6]; + int validate_param = 0; + unsigned char loop_index = 0; + int ret = 0; + + + /* System compatability */ + rtc_tm->tm_year -= 100; + rtc_tm->tm_mon += 1; + + validate_param = da9052_rtc_validate_parameters(rtc_tm); + if (validate_param) + return validate_param; + + msg_arr[loop_index].addr = DA9052_COUNTS_REG; + msg_arr[loop_index++].data = DA9052_COUNTS_MONITOR | rtc_tm->tm_sec; + + msg_arr[loop_index].addr = DA9052_COUNTMI_REG; + msg_arr[loop_index].data = 0; + msg_arr[loop_index++].data = rtc_tm->tm_min; + + msg_arr[loop_index].addr = DA9052_COUNTH_REG; + msg_arr[loop_index].data = 0; + msg_arr[loop_index++].data = rtc_tm->tm_hour; + + msg_arr[loop_index].addr = DA9052_COUNTD_REG; + msg_arr[loop_index].data = 0; + msg_arr[loop_index++].data = rtc_tm->tm_mday; + + msg_arr[loop_index].addr = DA9052_COUNTMO_REG; + msg_arr[loop_index].data = 0; + msg_arr[loop_index++].data = rtc_tm->tm_mon; + + msg_arr[loop_index].addr = DA9052_COUNTY_REG; + msg_arr[loop_index].data = 0; + msg_arr[loop_index++].data = rtc_tm->tm_year; + + da9052_lock(da9052); + ret = da9052->write_many(da9052, msg_arr, loop_index); + if (ret != 0) { + da9052_unlock(da9052); + return ret; + } + + da9052_unlock(da9052); + return 0; +} + +static int da9052_rtc_gettime(struct da9052 *da9052, struct rtc_time *rtc_tm) +{ + + struct da9052_ssc_msg msg[6]; + unsigned char loop_index = 0; + int validate_param = 0; + int ret = 0; + + msg[loop_index].data = 0; + msg[loop_index++].addr = DA9052_COUNTS_REG; + + msg[loop_index].data = 0; + msg[loop_index++].addr = DA9052_COUNTMI_REG; + + msg[loop_index].data = 0; + msg[loop_index++].addr = DA9052_COUNTH_REG; + + msg[loop_index].data = 0; + msg[loop_index++].addr = DA9052_COUNTD_REG; + + msg[loop_index].data = 0; + msg[loop_index++].addr = DA9052_COUNTMO_REG; + + msg[loop_index].data = 0; + msg[loop_index++].addr = DA9052_COUNTY_REG; + + da9052_lock(da9052); + ret = da9052->read_many(da9052, msg, loop_index); + if (ret != 0) { + da9052_unlock(da9052); + return ret; + } + da9052_unlock(da9052); + + rtc_tm->tm_year = msg[--loop_index].data & DA9052_COUNTY_COUNTYEAR; + rtc_tm->tm_mon = msg[--loop_index].data & DA9052_COUNTMO_COUNTMONTH; + rtc_tm->tm_mday = msg[--loop_index].data & DA9052_COUNTD_COUNTDAY; + rtc_tm->tm_hour = msg[--loop_index].data & DA9052_COUNTH_COUNTHOUR; + rtc_tm->tm_min = msg[--loop_index].data & DA9052_COUNTMI_COUNTMIN; + rtc_tm->tm_sec = msg[--loop_index].data & DA9052_COUNTS_COUNTSEC; + + validate_param = da9052_rtc_validate_parameters(rtc_tm); + if (validate_param) + return validate_param; + + /* System compatability */ + rtc_tm->tm_year += 100; + rtc_tm->tm_mon -= 1; + return 0; +} + +static int da9052_alarm_gettime(struct da9052 *da9052, struct rtc_time *rtc_tm) +{ + struct da9052_ssc_msg msg[5]; + unsigned char loop_index = 0; + int validate_param = 0; + int ret = 0; + + msg[loop_index].data = 0; + msg[loop_index++].addr = DA9052_ALARMMI_REG; + + msg[loop_index].data = 0; + msg[loop_index++].addr = DA9052_ALARMH_REG; + + msg[loop_index].data = 0; + msg[loop_index++].addr = DA9052_ALARMD_REG; + + msg[loop_index].data = 0; + msg[loop_index++].addr = DA9052_ALARMMO_REG; + + msg[loop_index].data = 0; + msg[loop_index++].addr = DA9052_ALARMY_REG; + + da9052_lock(da9052); + ret = da9052->read_many(da9052, msg, loop_index); + if (ret != 0) { + da9052_unlock(da9052); + return ret; + } + da9052_unlock(da9052); + + rtc_tm->tm_year = msg[--loop_index].data & DA9052_ALARMY_ALARMYEAR; + rtc_tm->tm_mon = msg[--loop_index].data & DA9052_ALARMMO_ALARMMONTH; + rtc_tm->tm_mday = msg[--loop_index].data & DA9052_ALARMD_ALARMDAY; + rtc_tm->tm_hour = msg[--loop_index].data & DA9052_ALARMH_ALARMHOUR; + rtc_tm->tm_min = msg[--loop_index].data & DA9052_ALARMMI_ALARMMIN; + + validate_param = da9052_rtc_validate_parameters(rtc_tm); + if (validate_param) + return validate_param; + + /* System compatability */ + rtc_tm->tm_year += 100; + rtc_tm->tm_mon -= 1; + + return 0; +} + +static int da9052_alarm_settime(struct da9052 *da9052, struct rtc_time *rtc_tm) +{ + + struct da9052_ssc_msg msg_arr[5]; + struct da9052_ssc_msg msg; + int validate_param = 0; + unsigned char loop_index = 0; + int ret = 0; + + rtc_tm->tm_sec = 0; + + /* System compatability */ + rtc_tm->tm_year -= 100; + rtc_tm->tm_mon += 1; + + validate_param = da9052_rtc_validate_parameters(rtc_tm); + if (validate_param) + return validate_param; + + msg.addr = DA9052_ALARMMI_REG; + msg.data = 0; + + da9052_lock(da9052); + ret = da9052->read(da9052, &msg); + if (ret != 0) { + da9052_unlock(da9052); + return ret; + } + + msg.data = msg.data & ~(DA9052_ALARMMI_ALARMMIN); + msg.data |= rtc_tm->tm_min; + + msg_arr[loop_index].addr = DA9052_ALARMMI_REG; + msg_arr[loop_index].data = 0; + msg_arr[loop_index++].data = msg.data; + + msg_arr[loop_index].addr = DA9052_ALARMH_REG; + msg_arr[loop_index].data = 0; + msg_arr[loop_index++].data = rtc_tm->tm_hour; + + msg_arr[loop_index].addr = DA9052_ALARMD_REG; + msg_arr[loop_index].data = 0; + msg_arr[loop_index++].data = rtc_tm->tm_mday; + + msg_arr[loop_index].addr = DA9052_ALARMMO_REG; + msg_arr[loop_index].data = 0; + msg_arr[loop_index++].data = rtc_tm->tm_mon; + + msg.addr = DA9052_ALARMY_REG; + msg.data = 0; + ret = da9052->read(da9052, &msg); + if (ret != 0) { + da9052_unlock(da9052); + return ret; + } + + msg.data = msg.data & ~(DA9052_ALARMY_ALARMYEAR); + + + msg.data |= rtc_tm->tm_year; + msg_arr[loop_index].addr = DA9052_ALARMY_REG; + msg_arr[loop_index].data = 0; + msg_arr[loop_index++].data = msg.data; + + ret = da9052->write_many(da9052, msg_arr, loop_index); + if (ret) { + da9052_unlock(da9052); + return ret; + } + + da9052_unlock(da9052); + return 0; +} + +static int da9052_rtc_get_alarm_status(struct da9052 *da9052) +{ + struct da9052_ssc_msg msg; + int ret = 0; + + msg.addr = DA9052_ALARMY_REG; + msg.data = 0; + da9052_lock(da9052); + ret = da9052->read(da9052, &msg); + if (ret != 0) { + da9052_unlock(da9052); + return ret; + } + + da9052_unlock(da9052); + msg.data &= DA9052_ALARMY_ALARMON; + + return (msg.data > 0) ? 1 : 0; +} + + +static int da9052_rtc_enable_alarm(struct da9052 *da9052, unsigned char flag) +{ + struct da9052_ssc_msg msg; + int ret = 0; + + msg.addr = DA9052_ALARMY_REG; + da9052_lock(da9052); + ret = da9052->read(da9052, &msg); + if (ret != 0) { + da9052_unlock(da9052); + return ret; + } + + if (flag) + msg.data = msg.data | DA9052_ALARMY_ALARMON; + else + msg.data = msg.data & ~(DA9052_ALARMY_ALARMON); + + ret = da9052->write(da9052, &msg); + if (ret != 0) { + da9052_unlock(da9052); + return ret; + } + da9052_unlock(da9052); + + return 0; +} + + +static ssize_t da9052_rtc_mask_irq(struct da9052 *da9052) + { + unsigned char data = 0; + ssize_t ret = 0; + struct da9052_ssc_msg ssc_msg; + + ssc_msg.addr = DA9052_IRQMASKA_REG; + ssc_msg.data = 0; + + da9052_lock(da9052); + ret = da9052->read(da9052, &ssc_msg); + if (ret != 0) { + da9052_unlock(da9052); + return ret; + } + + data = ret; + ssc_msg.data = data |= DA9052_IRQMASKA_MALRAM; + + ret = da9052->write(da9052, &ssc_msg); + if (ret != 0) { + da9052_unlock(da9052); + return ret; + } + + da9052_unlock(da9052); + return 0; +} + + +static ssize_t da9052_rtc_unmask_irq(struct da9052 *da9052) +{ + unsigned char data = 0; + ssize_t ret = 0; + struct da9052_ssc_msg ssc_msg; + + ssc_msg.addr = DA9052_IRQMASKA_REG; + ssc_msg.data = 0; + + da9052_lock(da9052); + ret = da9052->read(da9052, &ssc_msg); + if (ret != 0) { + da9052_unlock(da9052); + return ret; + } + + data = ret; + ssc_msg.data = data &= ~DA9052_IRQMASKA_MALRAM; + + ret = da9052->write(da9052, &ssc_msg); + if (ret != 0) { + da9052_unlock(da9052); + return ret; + } + + da9052_unlock(da9052); + return 0; + +} + +static int da9052_rtc_class_ops_gettime + (struct device *dev, struct rtc_time *rtc_tm) +{ + int ret; + struct platform_device *pdev = to_platform_device(dev); + struct da9052 *da9052 = platform_get_drvdata(pdev); + + ret = da9052_rtc_gettime(da9052, rtc_tm); + if (ret) + return ret; + return 0; +} + + +static int da9052_rtc_class_ops_settime(struct device *dev, struct rtc_time *tm) +{ + int ret; + struct platform_device *pdev = to_platform_device(dev); + struct da9052 *da9052 = platform_get_drvdata(pdev); + + ret = da9052_rtc_settime(da9052, tm); + + return ret; +} + +static int da9052_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm) +{ + int ret; + struct rtc_time *tm = &alrm->time; + struct platform_device *pdev = to_platform_device(dev); + struct da9052 *da9052 = platform_get_drvdata(pdev); + + ret = da9052_alarm_gettime(da9052, tm); + + if (ret) + return ret; + + alrm->enabled = da9052_rtc_get_alarm_status(da9052); + + return 0; + +} + +static int da9052_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) +{ + int ret = 0; + struct rtc_time *tm = &alrm->time; + struct platform_device *pdev = to_platform_device(dev); + struct da9052 *da9052 = platform_get_drvdata(pdev); + + ret = da9052_alarm_settime(da9052, tm); + + if (ret) + return ret; + + ret = da9052_rtc_enable_alarm(da9052, 1); + + return ret; +} + +static int da9052_rtc_update_irq_enable(struct device *dev, + unsigned int enabled) +{ + struct da9052_rtc *priv = dev_get_drvdata(dev); + int ret = -ENODATA; + + da9052_lock(priv->da9052); + + ret = (enabled ? da9052_rtc_unmask_irq : da9052_rtc_mask_irq) + (priv->da9052); + + da9052_unlock(priv->da9052); + + return ret; +} + +static int da9052_rtc_alarm_irq_enable(struct device *dev, + unsigned int enabled) +{ + struct da9052_rtc *priv = dev_get_drvdata(dev); + + if (enabled) + return da9052_rtc_enable_alarm(priv->da9052, enabled); + else + return da9052_rtc_enable_alarm(priv->da9052, enabled); +} + +static const struct rtc_class_ops da9052_rtc_ops = { + .read_time = da9052_rtc_class_ops_gettime, + .set_time = da9052_rtc_class_ops_settime, + .read_alarm = da9052_rtc_readalarm, + .set_alarm = da9052_rtc_setalarm, +#if 0 + .update_irq_enable = da9052_rtc_update_irq_enable, + .alarm_irq_enable = da9052_rtc_alarm_irq_enable, +#endif +}; + + +static int __devinit da9052_rtc_probe(struct platform_device *pdev) +{ + int ret; + struct da9052_rtc *priv; + struct da9052_ssc_msg ssc_msg; + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->da9052 = dev_get_drvdata(pdev->dev.parent); + platform_set_drvdata(pdev, priv); + + /* Set the EH structure */ + priv->eh_data.eve_type = ALARM_EVE; + priv->eh_data.call_back = &da9052_rtc_notifier; + ret = priv->da9052->register_event_notifier(priv->da9052, + &priv->eh_data); + if (ret) + goto err_register_alarm; + + priv->is_min_alarm = 1; + priv->enable_tick_alarm = 1; + priv->enable_clk_buffer = 1; + priv->set_osc_trim_freq = 5; + /* Enable/Disable TICK Alarm */ + /* Read ALARM YEAR register */ + ssc_msg.addr = DA9052_ALARMY_REG; + ssc_msg.data = 0; + + da9052_lock(priv->da9052); + ret = priv->da9052->read(priv->da9052, &ssc_msg); + if (ret != 0) { + da9052_unlock(priv->da9052); + goto err_ssc_comm; + } + + if (priv->enable_tick_alarm) + ssc_msg.data = (ssc_msg.data | DA9052_ALARMY_TICKON); + else + ssc_msg.data = + ((ssc_msg.data & ~(DA9052_ALARMY_TICKON))); + + ret = priv->da9052->write(priv->da9052, &ssc_msg); + if (ret != 0) { + da9052_unlock(priv->da9052); + goto err_ssc_comm; + } + + /* Set TICK Alarm to 1 minute or 1 sec */ + /* Read ALARM MINUTES register */ + ssc_msg.addr = DA9052_ALARMMI_REG; + ssc_msg.data = 0; + + ret = priv->da9052->read(priv->da9052, &ssc_msg); + if (ret != 0) { + da9052_unlock(priv->da9052); + goto err_ssc_comm; + } + + if (priv->is_min_alarm) + /* Set 1 minute tick type */ + ssc_msg.data = (ssc_msg.data | DA9052_ALARMMI_TICKTYPE); + else + /* Set 1 sec tick type */ + ssc_msg.data = (ssc_msg.data & ~(DA9052_ALARMMI_TICKTYPE)); + + ret = priv->da9052->write(priv->da9052, &ssc_msg); + if (ret != 0) { + da9052_unlock(priv->da9052); + goto err_ssc_comm; + } + + /* Enable/Disable Clock buffer in Power Down Mode */ + ssc_msg.addr = DA9052_PDDIS_REG; + ssc_msg.data = 0; + + ret = priv->da9052->read(priv->da9052, &ssc_msg); + if (ret != 0) { + da9052_unlock(priv->da9052); + goto err_ssc_comm; + } + + if (priv->enable_clk_buffer) + ssc_msg.data = (ssc_msg.data | DA9052_PDDIS_OUT32KPD); + else + ssc_msg.data = (ssc_msg.data & ~(DA9052_PDDIS_OUT32KPD)); + + ret = priv->da9052->write(priv->da9052, &ssc_msg); + if (ret != 0) { + da9052_unlock(priv->da9052); + goto err_ssc_comm; + } + + /* Set clock trim frequency value */ + ssc_msg.addr = DA9052_OSCTRIM_REG; + ssc_msg.data = priv->set_osc_trim_freq; + + ret = priv->da9052->write(priv->da9052, &ssc_msg); + if (ret != 0) { + da9052_unlock(priv->da9052); + goto err_ssc_comm; + } + da9052_unlock(priv->da9052); + + priv->rtc = rtc_device_register(pdev->name, + &pdev->dev, &da9052_rtc_ops, THIS_MODULE); + if (IS_ERR(priv->rtc)) { + ret = PTR_ERR(priv->rtc); + goto err_ssc_comm; + } + return 0; + +err_ssc_comm: + priv->da9052->unregister_event_notifier + (priv->da9052, &priv->eh_data); +err_register_alarm: + platform_set_drvdata(pdev, NULL); + kfree(priv); + + return ret; +} + +static int __devexit da9052_rtc_remove(struct platform_device *pdev) +{ + struct da9052_rtc *priv = platform_get_drvdata(pdev); + rtc_device_unregister(priv->rtc); + da9052_lock(priv->da9052); + priv->da9052->unregister_event_notifier(priv->da9052, &priv->eh_data); + da9052_unlock(priv->da9052); + platform_set_drvdata(pdev, NULL); + kfree(priv); + return 0; +} + +static struct platform_driver da9052_rtc_driver = { + .probe = da9052_rtc_probe, + .remove = __devexit_p(da9052_rtc_remove), + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + }, +}; + + +static int __init da9052_rtc_init(void) +{ + return platform_driver_register(&da9052_rtc_driver); +} +module_init(da9052_rtc_init); + +static void __exit da9052_rtc_exit(void) +{ + platform_driver_unregister(&da9052_rtc_driver); +} +module_exit(da9052_rtc_exit); + +MODULE_AUTHOR("Dialog Semiconductor Ltd "); +MODULE_DESCRIPTION("RTC driver for Dialog DA9052 PMIC"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" DRIVER_NAME); + diff -Naur linux-2.6.34-orig2/include/linux/mfd/da9052/rtc.h linux-2.6.34/include/linux/mfd/da9052/rtc.h --- linux-2.6.34-orig2/include/linux/mfd/da9052/rtc.h 1970-01-01 05:00:00.000000000 +0500 +++ linux-2.6.34/include/linux/mfd/da9052/rtc.h 2010-10-12 17:47:05.000000000 +0500 @@ -0,0 +1,322 @@ +/* + * da9052 RTC module declarations. + * + * Copyright(c) 2009 Dialog Semiconductor Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef __LINUX_MFD_DA9052_RTC_H +#define __LINUX_MFD_DA9052_RTC_H + +#define DA9052_RTC_DEVICE_NAME "da9052_rtc" + +/* Limit values */ +#define DA9052_RTC_SECONDS_LIMIT 59 +#define DA9052_RTC_MINUTES_LIMIT 59 +#define DA9052_RTC_HOURS_LIMIT 23 +#define DA9052_RTC_DAYS_LIMIT 31 +#define DA9052_RTC_MONTHS_LIMIT 12 +#define DA9052_RTC_YEARS_LIMIT 63 + +/* Months */ +#define FEBRUARY 2 +#define APRIL 4 +#define JUNE 6 +#define SEPTEMBER 9 +#define NOVEMBER 11 + +/* BYTE shifts */ +#define DA9052_RTC_FOURTH_BYTE 24 +#define DA9052_RTC_THIRD_BYTE 16 +#define DA9052_RTC_SECOND_BYTE 8 +#define DA9052_RTC_FIRST_BYTE 0 + +/* Oscillator trim values */ +#define DA9052_RTC_OSC_FRQ_0_0ppm 0 +#define DA9052_RTC_OSC_FRQ_1_9ppm 1 +#define DA9052_RTC_OSC_FRQ_3_8ppm 2 +#define DA9052_RTC_OSC_FRQ_5_7ppm 3 +#define DA9052_RTC_OSC_FRQ_7_6ppm 4 +#define DA9052_RTC_OSC_FRQ_9_5ppm 5 +#define DA9052_RTC_OSC_FRQ_11_4ppm 6 +#define DA9052_RTC_OSC_FRQ_13_3ppm 7 +#define DA9052_RTC_OSC_FRQ_15_2ppm 8 +#define DA9052_RTC_OSC_FRQ_17_1ppm 9 +#define DA9052_RTC_OSC_FRQ_19_0ppm 10 +#define DA9052_RTC_OSC_FRQ_20_9ppm 11 +#define DA9052_RTC_OSC_FRQ_22_8ppm 12 +#define DA9052_RTC_OSC_FRQ_24_7ppm 13 +#define DA9052_RTC_OSC_FRQ_26_7ppm 14 +#define DA9052_RTC_OSC_FRQ_28_6ppm 15 +#define DA9052_RTC_OSC_FRQ_30_5ppm 16 +#define DA9052_RTC_OSC_FRQ_32_4ppm 17 +#define DA9052_RTC_OSC_FRQ_34_3ppm 18 +#define DA9052_RTC_OSC_FRQ_36_2ppm 19 +#define DA9052_RTC_OSC_FRQ_38_1ppm 20 +#define DA9052_RTC_OSC_FRQ_40_0ppm 21 +#define DA9052_RTC_OSC_FRQ_41_9ppm 22 +#define DA9052_RTC_OSC_FRQ_43_8ppm 23 +#define DA9052_RTC_OSC_FRQ_45_7ppm 24 +#define DA9052_RTC_OSC_FRQ_47_6ppm 25 +#define DA9052_RTC_OSC_FRQ_49_5ppm 26 +#define DA9052_RTC_OSC_FRQ_51_4ppm 27 +#define DA9052_RTC_OSC_FRQ_53_4ppm 28 +#define DA9052_RTC_OSC_FRQ_55_3ppm 29 +#define DA9052_RTC_OSC_FRQ_57_2ppm 30 +#define DA9052_RTC_OSC_FRQ_59_1ppm 31 +#define DA9052_RTC_OSC_FRQ_61_0ppm 32 +#define DA9052_RTC_OSC_FRQ_62_9ppm 33 +#define DA9052_RTC_OSC_FRQ_64_8ppm 34 +#define DA9052_RTC_OSC_FRQ_66_7ppm 35 +#define DA9052_RTC_OSC_FRQ_68_6ppm 36 +#define DA9052_RTC_OSC_FRQ_70_5ppm 37 +#define DA9052_RTC_OSC_FRQ_72_4ppm 38 +#define DA9052_RTC_OSC_FRQ_74_3ppm 39 +#define DA9052_RTC_OSC_FRQ_76_2ppm 40 +#define DA9052_RTC_OSC_FRQ_78_2ppm 41 +#define DA9052_RTC_OSC_FRQ_80_1ppm 42 +#define DA9052_RTC_OSC_FRQ_82_0ppm 43 +#define DA9052_RTC_OSC_FRQ_83_9ppm 44 +#define DA9052_RTC_OSC_FRQ_85_8ppm 45 +#define DA9052_RTC_OSC_FRQ_87_7ppm 46 +#define DA9052_RTC_OSC_FRQ_89_6ppm 47 +#define DA9052_RTC_OSC_FRQ_91_5ppm 48 +#define DA9052_RTC_OSC_FRQ_93_4ppm 49 +#define DA9052_RTC_OSC_FRQ_95_3ppm 50 +#define DA9052_RTC_OSC_FRQ_97_2ppm 51 +#define DA9052_RTC_OSC_FRQ_99_1ppm 52 +#define DA9052_RTC_OSC_FRQ_101_0ppm 53 +#define DA9052_RTC_OSC_FRQ_102_9ppm 54 +#define DA9052_RTC_OSC_FRQ_104_9ppm 55 +#define DA9052_RTC_OSC_FRQ_106_8ppm 56 +#define DA9052_RTC_OSC_FRQ_108_7ppm 57 +#define DA9052_RTC_OSC_FRQ_110_6ppm 58 +#define DA9052_RTC_OSC_FRQ_112_5ppm 59 +#define DA9052_RTC_OSC_FRQ_114_4ppm 60 +#define DA9052_RTC_OSC_FRQ_116_3ppm 61 +#define DA9052_RTC_OSC_FRQ_118_2ppm 62 +#define DA9052_RTC_OSC_FRQ_120_1ppm 63 +#define DA9052_RTC_OSC_FRQ_122_0ppm 64 +#define DA9052_RTC_OSC_FRQ_123_9ppm 65 +#define DA9052_RTC_OSC_FRQ_125_8ppm 66 +#define DA9052_RTC_OSC_FRQ_127_7ppm 67 +#define DA9052_RTC_OSC_FRQ_129_6ppm 68 +#define DA9052_RTC_OSC_FRQ_131_6ppm 69 +#define DA9052_RTC_OSC_FRQ_133_5ppm 70 +#define DA9052_RTC_OSC_FRQ_135_4ppm 71 +#define DA9052_RTC_OSC_FRQ_137_3ppm 72 +#define DA9052_RTC_OSC_FRQ_139_2ppm 73 +#define DA9052_RTC_OSC_FRQ_141_1ppm 74 +#define DA9052_RTC_OSC_FRQ_143_0ppm 75 +#define DA9052_RTC_OSC_FRQ_144_9ppm 76 +#define DA9052_RTC_OSC_FRQ_146_8ppm 77 +#define DA9052_RTC_OSC_FRQ_148_7ppm 78 +#define DA9052_RTC_OSC_FRQ_150_6ppm 79 +#define DA9052_RTC_OSC_FRQ_152_5ppm 80 +#define DA9052_RTC_OSC_FRQ_154_4ppm 81 +#define DA9052_RTC_OSC_FRQ_156_4ppm 82 +#define DA9052_RTC_OSC_FRQ_158_3ppm 83 +#define DA9052_RTC_OSC_FRQ_160_2ppm 84 +#define DA9052_RTC_OSC_FRQ_162_1ppm 85 +#define DA9052_RTC_OSC_FRQ_164_0ppm 86 +#define DA9052_RTC_OSC_FRQ_165_9ppm 87 +#define DA9052_RTC_OSC_FRQ_167_8ppm 88 +#define DA9052_RTC_OSC_FRQ_169_7ppm 89 +#define DA9052_RTC_OSC_FRQ_171_6ppm 90 +#define DA9052_RTC_OSC_FRQ_173_5ppm 91 +#define DA9052_RTC_OSC_FRQ_175_4ppm 92 +#define DA9052_RTC_OSC_FRQ_177_3ppm 93 +#define DA9052_RTC_OSC_FRQ_179_2ppm 94 +#define DA9052_RTC_OSC_FRQ_181_1ppm 95 +#define DA9052_RTC_OSC_FRQ_183_1ppm 96 +#define DA9052_RTC_OSC_FRQ_185_0ppm 97 +#define DA9052_RTC_OSC_FRQ_186_9ppm 98 +#define DA9052_RTC_OSC_FRQ_188_8ppm 99 +#define DA9052_RTC_OSC_FRQ_190_7ppm 100 +#define DA9052_RTC_OSC_FRQ_192_6ppm 101 +#define DA9052_RTC_OSC_FRQ_194_5ppm 102 +#define DA9052_RTC_OSC_FRQ_196_4ppm 103 +#define DA9052_RTC_OSC_FRQ_198_3ppm 104 +#define DA9052_RTC_OSC_FRQ_200_2ppm 105 +#define DA9052_RTC_OSC_FRQ_202_1ppm 106 +#define DA9052_RTC_OSC_FRQ_204_0ppm 107 +#define DA9052_RTC_OSC_FRQ_205_9ppm 108 +#define DA9052_RTC_OSC_FRQ_207_9ppm 109 +#define DA9052_RTC_OSC_FRQ_209_8ppm 110 +#define DA9052_RTC_OSC_FRQ_211_7ppm 111 +#define DA9052_RTC_OSC_FRQ_213_6ppm 112 +#define DA9052_RTC_OSC_FRQ_215_5ppm 113 +#define DA9052_RTC_OSC_FRQ_217_4ppm 114 +#define DA9052_RTC_OSC_FRQ_219_3ppm 115 +#define DA9052_RTC_OSC_FRQ_221_2ppm 116 +#define DA9052_RTC_OSC_FRQ_223_1ppm 117 +#define DA9052_RTC_OSC_FRQ_225_0ppm 118 +#define DA9052_RTC_OSC_FRQ_226_9ppm 119 +#define DA9052_RTC_OSC_FRQ_228_8ppm 120 +#define DA9052_RTC_OSC_FRQ_230_7ppm 121 +#define DA9052_RTC_OSC_FRQ_232_6ppm 122 +#define DA9052_RTC_OSC_FRQ_234_6ppm 123 +#define DA9052_RTC_OSC_FRQ_236_5ppm 124 +#define DA9052_RTC_OSC_FRQ_238_4ppm 125 +#define DA9052_RTC_OSC_FRQ_240_3ppm 126 +#define DA9052_RTC_OSC_FRQ_242_2ppm 127 +#define DA9052_RTC_OSC_FRQ_MINUS_244_1ppm 128 +#define DA9052_RTC_OSC_FRQ_MINUS_242_2ppm 129 +#define DA9052_RTC_OSC_FRQ_MINUS_240_3ppm 130 +#define DA9052_RTC_OSC_FRQ_MINUS_238_4ppm 131 +#define DA9052_RTC_OSC_FRQ_MINUS_236_5ppm 132 +#define DA9052_RTC_OSC_FRQ_MINUS_234_6ppm 133 +#define DA9052_RTC_OSC_FRQ_MINUS_232_6ppm 134 +#define DA9052_RTC_OSC_FRQ_MINUS_230_7ppm 135 +#define DA9052_RTC_OSC_FRQ_MINUS_228_8ppm 136 +#define DA9052_RTC_OSC_FRQ_MINUS_226_9ppm 137 +#define DA9052_RTC_OSC_FRQ_MINUS_225_0ppm 138 +#define DA9052_RTC_OSC_FRQ_MINUS_223_1ppm 139 +#define DA9052_RTC_OSC_FRQ_MINUS_221_2ppm 140 +#define DA9052_RTC_OSC_FRQ_MINUS_219_3ppm 141 +#define DA9052_RTC_OSC_FRQ_MINUS_217_4ppm 142 +#define DA9052_RTC_OSC_FRQ_MINUS_215_5ppm 143 +#define DA9052_RTC_OSC_FRQ_MINUS_213_6ppm 144 +#define DA9052_RTC_OSC_FRQ_MINUS_211_7ppm 145 +#define DA9052_RTC_OSC_FRQ_MINUS_209_8ppm 146 +#define DA9052_RTC_OSC_FRQ_MINUS_207_9ppm 147 +#define DA9052_RTC_OSC_FRQ_MINUS_205_9ppm 148 +#define DA9052_RTC_OSC_FRQ_MINUS_204_0ppm 149 +#define DA9052_RTC_OSC_FRQ_MINUS_202_1ppm 150 +#define DA9052_RTC_OSC_FRQ_MINUS_200_2ppm 151 +#define DA9052_RTC_OSC_FRQ_MINUS_198_3ppm 152 +#define DA9052_RTC_OSC_FRQ_MINUS_196_4ppm 153 +#define DA9052_RTC_OSC_FRQ_MINUS_194_5ppm 154 +#define DA9052_RTC_OSC_FRQ_MINUS_192_6ppm 155 +#define DA9052_RTC_OSC_FRQ_MINUS_190_7ppm 156 +#define DA9052_RTC_OSC_FRQ_MINUS_188_8ppm 157 +#define DA9052_RTC_OSC_FRQ_MINUS_186_9ppm 158 +#define DA9052_RTC_OSC_FRQ_MINUS_185_0ppm 159 +#define DA9052_RTC_OSC_FRQ_MINUS_183_1ppm 160 +#define DA9052_RTC_OSC_FRQ_MINUS_181_1ppm 161 +#define DA9052_RTC_OSC_FRQ_MINUS_179_2ppm 162 +#define DA9052_RTC_OSC_FRQ_MINUS_177_3ppm 163 +#define DA9052_RTC_OSC_FRQ_MINUS_175_4ppm 164 +#define DA9052_RTC_OSC_FRQ_MINUS_173_5ppm 165 +#define DA9052_RTC_OSC_FRQ_MINUS_171_6ppm 166 +#define DA9052_RTC_OSC_FRQ_MINUS_169_7ppm 167 +#define DA9052_RTC_OSC_FRQ_MINUS_167_8ppm 168 +#define DA9052_RTC_OSC_FRQ_MINUS_165_9ppm 169 +#define DA9052_RTC_OSC_FRQ_MINUS_164_0ppm 170 +#define DA9052_RTC_OSC_FRQ_MINUS_162_1ppm 171 +#define DA9052_RTC_OSC_FRQ_MINUS_160_2ppm 172 +#define DA9052_RTC_OSC_FRQ_MINUS_158_3ppm 173 +#define DA9052_RTC_OSC_FRQ_MINUS_156_4ppm 174 +#define DA9052_RTC_OSC_FRQ_MINUS_154_4ppm 175 +#define DA9052_RTC_OSC_FRQ_MINUS_152_5ppm 176 +#define DA9052_RTC_OSC_FRQ_MINUS_150_6ppm 177 +#define DA9052_RTC_OSC_FRQ_MINUS_148_7ppm 178 +#define DA9052_RTC_OSC_FRQ_MINUS_146_8ppm 179 +#define DA9052_RTC_OSC_FRQ_MINUS_144_9ppm 180 +#define DA9052_RTC_OSC_FRQ_MINUS_143_0ppm 181 +#define DA9052_RTC_OSC_FRQ_MINUS_141_1ppm 182 +#define DA9052_RTC_OSC_FRQ_MINUS_139_2ppm 183 +#define DA9052_RTC_OSC_FRQ_MINUS_137_3ppm 184 +#define DA9052_RTC_OSC_FRQ_MINUS_135_4ppm 185 +#define DA9052_RTC_OSC_FRQ_MINUS_133_5ppm 186 +#define DA9052_RTC_OSC_FRQ_MINUS_131_6ppm 187 +#define DA9052_RTC_OSC_FRQ_MINUS_129_6ppm 188 +#define DA9052_RTC_OSC_FRQ_MINUS_127_7ppm 189 +#define DA9052_RTC_OSC_FRQ_MINUS_125_8ppm 190 +#define DA9052_RTC_OSC_FRQ_MINUS_123_9ppm 191 +#define DA9052_RTC_OSC_FRQ_MINUS_122_0ppm 192 +#define DA9052_RTC_OSC_FRQ_MINUS_120_1ppm 193 +#define DA9052_RTC_OSC_FRQ_MINUS_118_2ppm 194 +#define DA9052_RTC_OSC_FRQ_MINUS_116_3ppm 195 +#define DA9052_RTC_OSC_FRQ_MINUS_114_4ppm 196 +#define DA9052_RTC_OSC_FRQ_MINUS_112_5ppm 197 +#define DA9052_RTC_OSC_FRQ_MINUS_110_6ppm 198 +#define DA9052_RTC_OSC_FRQ_MINUS_108_7ppm 199 +#define DA9052_RTC_OSC_FRQ_MINUS_106_8ppm 200 +#define DA9052_RTC_OSC_FRQ_MINUS_104_9ppm 201 +#define DA9052_RTC_OSC_FRQ_MINUS_102_9ppm 202 +#define DA9052_RTC_OSC_FRQ_MINUS_101_0ppm 203 +#define DA9052_RTC_OSC_FRQ_MINUS_99_1ppm 204 +#define DA9052_RTC_OSC_FRQ_MINUS_97_2ppm 205 +#define DA9052_RTC_OSC_FRQ_MINUS_95_3ppm 206 +#define DA9052_RTC_OSC_FRQ_MINUS_93_4ppm 207 +#define DA9052_RTC_OSC_FRQ_MINUS_91_5ppm 208 +#define DA9052_RTC_OSC_FRQ_MINUS_89_6ppm 209 +#define DA9052_RTC_OSC_FRQ_MINUS_87_7ppm 210 +#define DA9052_RTC_OSC_FRQ_MINUS_85_8ppm 211 +#define DA9052_RTC_OSC_FRQ_MINUS_83_9ppm 212 +#define DA9052_RTC_OSC_FRQ_MINUS_82_0ppm 213 +#define DA9052_RTC_OSC_FRQ_MINUS_80_1ppm 214 +#define DA9052_RTC_OSC_FRQ_MINUS_78_2ppm 215 +#define DA9052_RTC_OSC_FRQ_MINUS_76_2ppm 216 +#define DA9052_RTC_OSC_FRQ_MINUS_74_3ppm 217 +#define DA9052_RTC_OSC_FRQ_MINUS_72_4ppm 218 +#define DA9052_RTC_OSC_FRQ_MINUS_70_5ppm 219 +#define DA9052_RTC_OSC_FRQ_MINUS_68_6ppm 220 +#define DA9052_RTC_OSC_FRQ_MINUS_66_7ppm 221 +#define DA9052_RTC_OSC_FRQ_MINUS_64_8ppm 222 +#define DA9052_RTC_OSC_FRQ_MINUS_62_9ppm 223 +#define DA9052_RTC_OSC_FRQ_MINUS_61_0ppm 224 +#define DA9052_RTC_OSC_FRQ_MINUS_59_1ppm 225 +#define DA9052_RTC_OSC_FRQ_MINUS_57_2ppm 226 +#define DA9052_RTC_OSC_FRQ_MINUS_55_3ppm 227 +#define DA9052_RTC_OSC_FRQ_MINUS_53_4ppm 228 +#define DA9052_RTC_OSC_FRQ_MINUS_51_4ppm 229 +#define DA9052_RTC_OSC_FRQ_MINUS_49_5ppm 230 +#define DA9052_RTC_OSC_FRQ_MINUS_47_6ppm 231 +#define DA9052_RTC_OSC_FRQ_MINUS_45_7ppm 232 +#define DA9052_RTC_OSC_FRQ_MINUS_43_8ppm 233 +#define DA9052_RTC_OSC_FRQ_MINUS_41_9ppm 234 +#define DA9052_RTC_OSC_FRQ_MINUS_40_0ppm 235 +#define DA9052_RTC_OSC_FRQ_MINUS_38_1ppm 236 +#define DA9052_RTC_OSC_FRQ_MINUS_36_2ppm 237 +#define DA9052_RTC_OSC_FRQ_MINUS_34_3ppm 238 +#define DA9052_RTC_OSC_FRQ_MINUS_32_4ppm 239 +#define DA9052_RTC_OSC_FRQ_MINUS_30_5ppm 240 +#define DA9052_RTC_OSC_FRQ_MINUS_28_6ppm 241 +#define DA9052_RTC_OSC_FRQ_MINUS_26_7ppm 242 +#define DA9052_RTC_OSC_FRQ_MINUS_24_7ppm 243 +#define DA9052_RTC_OSC_FRQ_MINUS_22_8ppm 244 +#define DA9052_RTC_OSC_FRQ_MINUS_20_9ppm 245 +#define DA9052_RTC_OSC_FRQ_MINUS_19_0ppm 246 +#define DA9052_RTC_OSC_FRQ_MINUS_17_1ppm 247 +#define DA9052_RTC_OSC_FRQ_MINUS_15_2ppm 248 +#define DA9052_RTC_OSC_FRQ_MINUS_13_3ppm 249 +#define DA9052_RTC_OSC_FRQ_MINUS_11_4ppm 250 +#define DA9052_RTC_OSC_FRQ_MINUS_9_5ppm 251 +#define DA9052_RTC_OSC_FRQ_MINUS_7_6ppm 252 +#define DA9052_RTC_OSC_FRQ_MINUS_5_7ppm 253 +#define DA9052_RTC_OSC_FRQ_MINUS_3_8ppm 254 +#define DA9052_RTC_OSC_FRQ_MINUS_1_9ppm 255 + +/* RTC error codes */ +#define DA9052_RTC_INVALID_SECONDS 3 +#define DA9052_RTC_INVALID_MINUTES 4 +#define DA9052_RTC_INVALID_HOURS 5 +#define DA9052_RTC_INVALID_DAYS 6 +#define DA9052_RTC_INVALID_MONTHS 7 +#define DA9052_RTC_INVALID_YEARS 8 +#define DA9052_RTC_INVALID_EVENT 9 +#define DA9052_RTC_INVALID_IOCTL 10 +#define DA9052_RTC_INVALID_SETTING 11 +#define DA9052_RTC_EVENT_ALREADY_REGISTERED 12 +#define DA9052_RTC_EVENT_UNREGISTERED 13 +#define DA9052_RTC_EVENT_REGISTRATION_FAILED 14 +#define DA9052_RTC_EVENT_UNREGISTRATION_FAILED 15 + +#endif +/* __LINUX_MFD_DA9052_RTC_H */ -- 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/