diff options
Diffstat (limited to 'drivers/rtc/rtc-msm6242.c')
| -rw-r--r-- | drivers/rtc/rtc-msm6242.c | 31 |
1 files changed, 11 insertions, 20 deletions
diff --git a/drivers/rtc/rtc-msm6242.c b/drivers/rtc/rtc-msm6242.c index 426cb5189daa..80e364baac53 100644 --- a/drivers/rtc/rtc-msm6242.c +++ b/drivers/rtc/rtc-msm6242.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Oki MSM6242 RTC Driver * @@ -7,6 +8,8 @@ * Copyright (C) 1993 Hamish Macdonald */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/delay.h> #include <linux/io.h> #include <linux/kernel.h> @@ -85,39 +88,27 @@ static inline void msm6242_write(struct msm6242_priv *priv, unsigned int val, __raw_writel(val, &priv->regs[reg]); } -static inline void msm6242_set(struct msm6242_priv *priv, unsigned int val, - unsigned int reg) -{ - msm6242_write(priv, msm6242_read(priv, reg) | val, reg); -} - -static inline void msm6242_clear(struct msm6242_priv *priv, unsigned int val, - unsigned int reg) -{ - msm6242_write(priv, msm6242_read(priv, reg) & ~val, reg); -} - static void msm6242_lock(struct msm6242_priv *priv) { int cnt = 5; - msm6242_set(priv, MSM6242_CD_HOLD, MSM6242_CD); + msm6242_write(priv, MSM6242_CD_HOLD|MSM6242_CD_IRQ_FLAG, MSM6242_CD); while ((msm6242_read(priv, MSM6242_CD) & MSM6242_CD_BUSY) && cnt) { - msm6242_clear(priv, MSM6242_CD_HOLD, MSM6242_CD); + msm6242_write(priv, MSM6242_CD_IRQ_FLAG, MSM6242_CD); udelay(70); - msm6242_set(priv, MSM6242_CD_HOLD, MSM6242_CD); + msm6242_write(priv, MSM6242_CD_HOLD|MSM6242_CD_IRQ_FLAG, MSM6242_CD); cnt--; } if (!cnt) - pr_warn("msm6242: timed out waiting for RTC (0x%x)\n", + pr_warn("timed out waiting for RTC (0x%x)\n", msm6242_read(priv, MSM6242_CD)); } static void msm6242_unlock(struct msm6242_priv *priv) { - msm6242_clear(priv, MSM6242_CD_HOLD, MSM6242_CD); + msm6242_write(priv, MSM6242_CD_IRQ_FLAG, MSM6242_CD); } static int msm6242_read_time(struct device *dev, struct rtc_time *tm) @@ -130,7 +121,8 @@ static int msm6242_read_time(struct device *dev, struct rtc_time *tm) msm6242_read(priv, MSM6242_SECOND1); tm->tm_min = msm6242_read(priv, MSM6242_MINUTE10) * 10 + msm6242_read(priv, MSM6242_MINUTE1); - tm->tm_hour = (msm6242_read(priv, MSM6242_HOUR10 & 3)) * 10 + + tm->tm_hour = (msm6242_read(priv, MSM6242_HOUR10) & + MSM6242_HOUR10_HR_MASK) * 10 + msm6242_read(priv, MSM6242_HOUR1); tm->tm_mday = msm6242_read(priv, MSM6242_DAY10) * 10 + msm6242_read(priv, MSM6242_DAY1); @@ -153,7 +145,7 @@ static int msm6242_read_time(struct device *dev, struct rtc_time *tm) msm6242_unlock(priv); - return rtc_valid_tm(tm); + return 0; } static int msm6242_set_time(struct device *dev, struct rtc_time *tm) @@ -225,7 +217,6 @@ static int __init msm6242_rtc_probe(struct platform_device *pdev) static struct platform_driver msm6242_rtc_driver = { .driver = { .name = "rtc-msm6242", - .owner = THIS_MODULE, }, }; |