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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-25 21:00:19 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-25 21:00:19 -0700 |
commit | 45b583b10a8b438b970e95a7d1d4db22c9e35004 (patch) | |
tree | 14fa481598289df0459580c582b48a9d95db51f6 /drivers/rtc/rtc-s3c.c | |
parent | 154dd78d30b56ffb8b447f629bfcceb14150e5c4 (diff) | |
parent | f19da2ce8ef5e49b8b8ea199c3601dd45d71b262 (diff) | |
download | op-kernel-dev-45b583b10a8b438b970e95a7d1d4db22c9e35004.zip op-kernel-dev-45b583b10a8b438b970e95a7d1d4db22c9e35004.tar.gz |
Merge 'akpm' patch series
* Merge akpm patch series: (122 commits)
drivers/connector/cn_proc.c: remove unused local
Documentation/SubmitChecklist: add RCU debug config options
reiserfs: use hweight_long()
reiserfs: use proper little-endian bitops
pnpacpi: register disabled resources
drivers/rtc/rtc-tegra.c: properly initialize spinlock
drivers/rtc/rtc-twl.c: check return value of twl_rtc_write_u8() in twl_rtc_set_time()
drivers/rtc: add support for Qualcomm PMIC8xxx RTC
drivers/rtc/rtc-s3c.c: support clock gating
drivers/rtc/rtc-mpc5121.c: add support for RTC on MPC5200
init: skip calibration delay if previously done
misc/eeprom: add eeprom access driver for digsy_mtc board
misc/eeprom: add driver for microwire 93xx46 EEPROMs
checkpatch.pl: update $logFunctions
checkpatch: make utf-8 test --strict
checkpatch.pl: add ability to ignore various messages
checkpatch: add a "prefer __aligned" check
checkpatch: validate signature styles and To: and Cc: lines
checkpatch: add __rcu as a sparse modifier
checkpatch: suggest using min_t or max_t
...
Did this as a merge because of (trivial) conflicts in
- Documentation/feature-removal-schedule.txt
- arch/xtensa/include/asm/uaccess.h
that were just easier to fix up in the merge than in the patch series.
Diffstat (limited to 'drivers/rtc/rtc-s3c.c')
-rw-r--r-- | drivers/rtc/rtc-s3c.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index 2a65e85..9329dbb 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -57,11 +57,13 @@ static irqreturn_t s3c_rtc_alarmirq(int irq, void *id) { struct rtc_device *rdev = id; + clk_enable(rtc_clk); rtc_update_irq(rdev, 1, RTC_AF | RTC_IRQF); if (s3c_rtc_cpu_type == TYPE_S3C64XX) writeb(S3C2410_INTP_ALM, s3c_rtc_base + S3C2410_INTP); + clk_disable(rtc_clk); return IRQ_HANDLED; } @@ -69,11 +71,13 @@ static irqreturn_t s3c_rtc_tickirq(int irq, void *id) { struct rtc_device *rdev = id; + clk_enable(rtc_clk); rtc_update_irq(rdev, 1, RTC_PF | RTC_IRQF); if (s3c_rtc_cpu_type == TYPE_S3C64XX) writeb(S3C2410_INTP_TIC, s3c_rtc_base + S3C2410_INTP); + clk_disable(rtc_clk); return IRQ_HANDLED; } @@ -84,12 +88,14 @@ static int s3c_rtc_setaie(struct device *dev, unsigned int enabled) pr_debug("%s: aie=%d\n", __func__, enabled); + clk_enable(rtc_clk); tmp = readb(s3c_rtc_base + S3C2410_RTCALM) & ~S3C2410_RTCALM_ALMEN; if (enabled) tmp |= S3C2410_RTCALM_ALMEN; writeb(tmp, s3c_rtc_base + S3C2410_RTCALM); + clk_disable(rtc_clk); return 0; } @@ -103,6 +109,7 @@ static int s3c_rtc_setfreq(struct device *dev, int freq) if (!is_power_of_2(freq)) return -EINVAL; + clk_enable(rtc_clk); spin_lock_irq(&s3c_rtc_pie_lock); if (s3c_rtc_cpu_type == TYPE_S3C2410) { @@ -114,6 +121,7 @@ static int s3c_rtc_setfreq(struct device *dev, int freq) writel(tmp, s3c_rtc_base + S3C2410_TICNT); spin_unlock_irq(&s3c_rtc_pie_lock); + clk_disable(rtc_clk); return 0; } @@ -125,6 +133,7 @@ static int s3c_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm) unsigned int have_retried = 0; void __iomem *base = s3c_rtc_base; + clk_enable(rtc_clk); retry_get_time: rtc_tm->tm_min = readb(base + S3C2410_RTCMIN); rtc_tm->tm_hour = readb(base + S3C2410_RTCHOUR); @@ -157,6 +166,7 @@ static int s3c_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm) rtc_tm->tm_year += 100; rtc_tm->tm_mon -= 1; + clk_disable(rtc_clk); return rtc_valid_tm(rtc_tm); } @@ -165,6 +175,7 @@ static int s3c_rtc_settime(struct device *dev, struct rtc_time *tm) void __iomem *base = s3c_rtc_base; int year = tm->tm_year - 100; + clk_enable(rtc_clk); pr_debug("set time %04d.%02d.%02d %02d:%02d:%02d\n", 1900 + tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec); @@ -182,6 +193,7 @@ static int s3c_rtc_settime(struct device *dev, struct rtc_time *tm) writeb(bin2bcd(tm->tm_mday), base + S3C2410_RTCDATE); writeb(bin2bcd(tm->tm_mon + 1), base + S3C2410_RTCMON); writeb(bin2bcd(year), base + S3C2410_RTCYEAR); + clk_disable(rtc_clk); return 0; } @@ -192,6 +204,7 @@ static int s3c_rtc_getalarm(struct device *dev, struct rtc_wkalrm *alrm) void __iomem *base = s3c_rtc_base; unsigned int alm_en; + clk_enable(rtc_clk); alm_tm->tm_sec = readb(base + S3C2410_ALMSEC); alm_tm->tm_min = readb(base + S3C2410_ALMMIN); alm_tm->tm_hour = readb(base + S3C2410_ALMHOUR); @@ -243,6 +256,7 @@ static int s3c_rtc_getalarm(struct device *dev, struct rtc_wkalrm *alrm) else alm_tm->tm_year = -1; + clk_disable(rtc_clk); return 0; } @@ -252,6 +266,7 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) void __iomem *base = s3c_rtc_base; unsigned int alrm_en; + clk_enable(rtc_clk); pr_debug("s3c_rtc_setalarm: %d, %04d.%02d.%02d %02d:%02d:%02d\n", alrm->enabled, 1900 + tm->tm_year, tm->tm_mon, tm->tm_mday, @@ -282,6 +297,7 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) s3c_rtc_setaie(dev, alrm->enabled); + clk_disable(rtc_clk); return 0; } @@ -289,6 +305,7 @@ static int s3c_rtc_proc(struct device *dev, struct seq_file *seq) { unsigned int ticnt; + clk_enable(rtc_clk); if (s3c_rtc_cpu_type == TYPE_S3C64XX) { ticnt = readw(s3c_rtc_base + S3C2410_RTCCON); ticnt &= S3C64XX_RTCCON_TICEN; @@ -298,6 +315,7 @@ static int s3c_rtc_proc(struct device *dev, struct seq_file *seq) } seq_printf(seq, "periodic_IRQ\t: %s\n", ticnt ? "yes" : "no"); + clk_disable(rtc_clk); return 0; } @@ -360,6 +378,7 @@ static void s3c_rtc_enable(struct platform_device *pdev, int en) if (s3c_rtc_base == NULL) return; + clk_enable(rtc_clk); if (!en) { tmp = readw(base + S3C2410_RTCCON); if (s3c_rtc_cpu_type == TYPE_S3C64XX) @@ -399,6 +418,7 @@ static void s3c_rtc_enable(struct platform_device *pdev, int en) base + S3C2410_RTCCON); } } + clk_disable(rtc_clk); } static int __devexit s3c_rtc_remove(struct platform_device *dev) @@ -410,7 +430,6 @@ static int __devexit s3c_rtc_remove(struct platform_device *dev) s3c_rtc_setaie(&dev->dev, 0); - clk_disable(rtc_clk); clk_put(rtc_clk); rtc_clk = NULL; @@ -529,6 +548,8 @@ static int __devinit s3c_rtc_probe(struct platform_device *pdev) s3c_rtc_setfreq(&pdev->dev, 1); + clk_disable(rtc_clk); + return 0; err_nortc: @@ -554,6 +575,7 @@ static int ticnt_save, ticnt_en_save; static int s3c_rtc_suspend(struct platform_device *pdev, pm_message_t state) { + clk_enable(rtc_clk); /* save TICNT for anyone using periodic interrupts */ ticnt_save = readb(s3c_rtc_base + S3C2410_TICNT); if (s3c_rtc_cpu_type == TYPE_S3C64XX) { @@ -568,6 +590,7 @@ static int s3c_rtc_suspend(struct platform_device *pdev, pm_message_t state) else dev_err(&pdev->dev, "enable_irq_wake failed\n"); } + clk_disable(rtc_clk); return 0; } @@ -576,6 +599,7 @@ static int s3c_rtc_resume(struct platform_device *pdev) { unsigned int tmp; + clk_enable(rtc_clk); s3c_rtc_enable(pdev, 1); writeb(ticnt_save, s3c_rtc_base + S3C2410_TICNT); if (s3c_rtc_cpu_type == TYPE_S3C64XX && ticnt_en_save) { @@ -587,6 +611,7 @@ static int s3c_rtc_resume(struct platform_device *pdev) disable_irq_wake(s3c_rtc_alarmno); wake_en = false; } + clk_disable(rtc_clk); return 0; } |