diff options
Diffstat (limited to 'drivers/rtc/rtc-88pm80x.c')
| -rw-r--r-- | drivers/rtc/rtc-88pm80x.c | 48 |
1 files changed, 20 insertions, 28 deletions
diff --git a/drivers/rtc/rtc-88pm80x.c b/drivers/rtc/rtc-88pm80x.c index cab293cb2bf0..a3e52a5a708f 100644 --- a/drivers/rtc/rtc-88pm80x.c +++ b/drivers/rtc/rtc-88pm80x.c @@ -1,22 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Real Time Clock driver for Marvell 88PM80x PMIC * * Copyright (c) 2012 Marvell International Ltd. * Wenzeng Chen<wzch@marvell.com> * Qiao Zhou <zhouqiao@marvell.com> - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file "COPYING" in the main directory of this - * archive for more details. - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/kernel.h> @@ -114,12 +102,14 @@ static int pm80x_rtc_read_time(struct device *dev, struct rtc_time *tm) unsigned char buf[4]; unsigned long ticks, base, data; regmap_raw_read(info->map, PM800_RTC_EXPIRE2_1, buf, 4); - base = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0]; + base = ((unsigned long)buf[3] << 24) | (buf[2] << 16) | + (buf[1] << 8) | buf[0]; dev_dbg(info->dev, "%x-%x-%x-%x\n", buf[0], buf[1], buf[2], buf[3]); /* load 32-bit read-only counter */ regmap_raw_read(info->map, PM800_RTC_COUNTER1, buf, 4); - data = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0]; + data = ((unsigned long)buf[3] << 24) | (buf[2] << 16) | + (buf[1] << 8) | buf[0]; ticks = base + data; dev_dbg(info->dev, "get base:0x%lx, RO count:0x%lx, ticks:0x%lx\n", base, data, ticks); @@ -137,7 +127,8 @@ static int pm80x_rtc_set_time(struct device *dev, struct rtc_time *tm) /* load 32-bit read-only counter */ regmap_raw_read(info->map, PM800_RTC_COUNTER1, buf, 4); - data = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0]; + data = ((unsigned long)buf[3] << 24) | (buf[2] << 16) | + (buf[1] << 8) | buf[0]; base = ticks - data; dev_dbg(info->dev, "set base:0x%lx, RO count:0x%lx, ticks:0x%lx\n", base, data, ticks); @@ -158,11 +149,13 @@ static int pm80x_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) int ret; regmap_raw_read(info->map, PM800_RTC_EXPIRE2_1, buf, 4); - base = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0]; + base = ((unsigned long)buf[3] << 24) | (buf[2] << 16) | + (buf[1] << 8) | buf[0]; dev_dbg(info->dev, "%x-%x-%x-%x\n", buf[0], buf[1], buf[2], buf[3]); regmap_raw_read(info->map, PM800_RTC_EXPIRE1_1, buf, 4); - data = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0]; + data = ((unsigned long)buf[3] << 24) | (buf[2] << 16) | + (buf[1] << 8) | buf[0]; ticks = base + data; dev_dbg(info->dev, "get base:0x%lx, RO count:0x%lx, ticks:0x%lx\n", base, data, ticks); @@ -185,12 +178,14 @@ static int pm80x_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) regmap_update_bits(info->map, PM800_RTC_CONTROL, PM800_ALARM1_EN, 0); regmap_raw_read(info->map, PM800_RTC_EXPIRE2_1, buf, 4); - base = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0]; + base = ((unsigned long)buf[3] << 24) | (buf[2] << 16) | + (buf[1] << 8) | buf[0]; dev_dbg(info->dev, "%x-%x-%x-%x\n", buf[0], buf[1], buf[2], buf[3]); /* load 32-bit read-only counter */ regmap_raw_read(info->map, PM800_RTC_COUNTER1, buf, 4); - data = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0]; + data = ((unsigned long)buf[3] << 24) | (buf[2] << 16) | + (buf[1] << 8) | buf[0]; ticks = base + data; dev_dbg(info->dev, "get base:0x%lx, RO count:0x%lx, ticks:0x%lx\n", base, data, ticks); @@ -269,7 +264,6 @@ static int pm80x_rtc_probe(struct platform_device *pdev) return -ENOMEM; info->irq = platform_get_irq(pdev, 0); if (info->irq < 0) { - dev_err(&pdev->dev, "No IRQ resource!\n"); ret = -EINVAL; goto out; } @@ -300,11 +294,10 @@ static int pm80x_rtc_probe(struct platform_device *pdev) info->rtc_dev->ops = &pm80x_rtc_ops; info->rtc_dev->range_max = U32_MAX; - ret = rtc_register_device(info->rtc_dev); - if (ret) { - dev_err(&pdev->dev, "Failed to register RTC device: %d\n", ret); + ret = devm_rtc_register_device(info->rtc_dev); + if (ret) goto out_rtc; - } + /* * enable internal XO instead of internal 3.25MHz clock since it can * free running in PMIC power-down state. @@ -315,7 +308,7 @@ static int pm80x_rtc_probe(struct platform_device *pdev) /* remember whether this power up is caused by PMIC RTC or not */ info->rtc_dev->dev.platform_data = &pdata->rtc_wakeup; - device_init_wakeup(&pdev->dev, 1); + device_init_wakeup(&pdev->dev, true); return 0; out_rtc: @@ -324,11 +317,10 @@ out: return ret; } -static int pm80x_rtc_remove(struct platform_device *pdev) +static void pm80x_rtc_remove(struct platform_device *pdev) { struct pm80x_rtc_info *info = platform_get_drvdata(pdev); pm80x_free_irq(info->chip, info->irq, info); - return 0; } static struct platform_driver pm80x_rtc_driver = { |