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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-18 09:43:09 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-18 09:43:09 -0700 |
commit | 515b696b282f856c3ad1679ccd658120faa387d0 (patch) | |
tree | d9d7c1185c396617f128ca23463062308d11393b /drivers/rtc | |
parent | fa877c71e2136bd682b45022c96d5e073ced9f58 (diff) | |
parent | 064a16dc41be879d12bd5de5d2f9d38d890e0ee7 (diff) | |
download | kernel_samsung_tuna-515b696b282f856c3ad1679ccd658120faa387d0.zip kernel_samsung_tuna-515b696b282f856c3ad1679ccd658120faa387d0.tar.gz kernel_samsung_tuna-515b696b282f856c3ad1679ccd658120faa387d0.tar.bz2 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (262 commits)
sh: mach-ecovec24: Add user debug switch support
sh: Kill off unused se_skipped in alignment trap notification code.
sh: Wire up HAVE_SYSCALL_TRACEPOINTS.
video: sh_mobile_lcdcfb: use both register sets for display panning
video: sh_mobile_lcdcfb: implement display panning
sh: Fix up sh7705 flush_dcache_page() build.
sh: kfr2r09: document the PLL/FLL <-> RF relationship.
sh: mach-ecovec24: need asm/clock.h.
sh: mach-ecovec24: deassert usb irq on boot.
sh: Add KEYSC support for EcoVec24
sh: add kycr2_delay for sh_keysc
sh: cpufreq: Include CPU id in info messages.
sh: multi-evt support for SH-X3 proto CPU.
sh: clkfwk: remove bogus set_bus_parent() from SH7709.
sh: Fix the indication point of the liquid crystal of AP-325RXA(AP3300)
sh: Add EcoVec24 romImage defconfig
sh: USB disable process is needed if romImage boot for EcoVec24
sh: EcoVec24: add HIZA setting for LED
sh: EcoVec24: write MAC address in boot
sh: Add romImage support for EcoVec24
...
Diffstat (limited to 'drivers/rtc')
-rw-r--r-- | drivers/rtc/rtc-ds1302.c | 69 | ||||
-rw-r--r-- | drivers/rtc/rtc-sh.c | 97 |
2 files changed, 48 insertions, 118 deletions
diff --git a/drivers/rtc/rtc-ds1302.c b/drivers/rtc/rtc-ds1302.c index 1845566..d490628 100644 --- a/drivers/rtc/rtc-ds1302.c +++ b/drivers/rtc/rtc-ds1302.c @@ -1,26 +1,25 @@ /* * Dallas DS1302 RTC Support * - * Copyright (C) 2002 David McCullough - * Copyright (C) 2003 - 2007 Paul Mundt + * Copyright (C) 2002 David McCullough + * Copyright (C) 2003 - 2007 Paul Mundt * * This file is subject to the terms and conditions of the GNU General Public - * License version 2. See the file "COPYING" in the main directory of + * License version 2. See the file "COPYING" in the main directory of * this archive for more details. */ + #include <linux/init.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/platform_device.h> -#include <linux/time.h> #include <linux/rtc.h> -#include <linux/spinlock.h> #include <linux/io.h> #include <linux/bcd.h> #include <asm/rtc.h> #define DRV_NAME "rtc-ds1302" -#define DRV_VERSION "0.1.0" +#define DRV_VERSION "0.1.1" #define RTC_CMD_READ 0x81 /* Read command */ #define RTC_CMD_WRITE 0x80 /* Write command */ @@ -47,11 +46,6 @@ #error "Add support for your platform" #endif -struct ds1302_rtc { - struct rtc_device *rtc_dev; - spinlock_t lock; -}; - static void ds1302_sendbits(unsigned int val) { int i; @@ -103,10 +97,6 @@ static void ds1302_writebyte(unsigned int addr, unsigned int val) static int ds1302_rtc_read_time(struct device *dev, struct rtc_time *tm) { - struct ds1302_rtc *rtc = dev_get_drvdata(dev); - - spin_lock_irq(&rtc->lock); - tm->tm_sec = bcd2bin(ds1302_readbyte(RTC_ADDR_SEC)); tm->tm_min = bcd2bin(ds1302_readbyte(RTC_ADDR_MIN)); tm->tm_hour = bcd2bin(ds1302_readbyte(RTC_ADDR_HOUR)); @@ -118,26 +108,17 @@ static int ds1302_rtc_read_time(struct device *dev, struct rtc_time *tm) if (tm->tm_year < 70) tm->tm_year += 100; - spin_unlock_irq(&rtc->lock); - dev_dbg(dev, "%s: tm is secs=%d, mins=%d, hours=%d, " "mday=%d, mon=%d, year=%d, wday=%d\n", __func__, tm->tm_sec, tm->tm_min, tm->tm_hour, tm->tm_mday, tm->tm_mon + 1, tm->tm_year, tm->tm_wday); - if (rtc_valid_tm(tm) < 0) - dev_err(dev, "invalid date\n"); - - return 0; + return rtc_valid_tm(tm); } static int ds1302_rtc_set_time(struct device *dev, struct rtc_time *tm) { - struct ds1302_rtc *rtc = dev_get_drvdata(dev); - - spin_lock_irq(&rtc->lock); - /* Stop RTC */ ds1302_writebyte(RTC_ADDR_SEC, ds1302_readbyte(RTC_ADDR_SEC) | 0x80); @@ -152,8 +133,6 @@ static int ds1302_rtc_set_time(struct device *dev, struct rtc_time *tm) /* Start RTC */ ds1302_writebyte(RTC_ADDR_SEC, ds1302_readbyte(RTC_ADDR_SEC) & ~0x80); - spin_unlock_irq(&rtc->lock); - return 0; } @@ -170,9 +149,7 @@ static int ds1302_rtc_ioctl(struct device *dev, unsigned int cmd, if (copy_from_user(&tcs_val, (int __user *)arg, sizeof(int))) return -EFAULT; - spin_lock_irq(&rtc->lock); ds1302_writebyte(RTC_ADDR_TCR, (0xa0 | tcs_val * 0xf)); - spin_unlock_irq(&rtc->lock); return 0; } #endif @@ -187,10 +164,9 @@ static struct rtc_class_ops ds1302_rtc_ops = { .ioctl = ds1302_rtc_ioctl, }; -static int __devinit ds1302_rtc_probe(struct platform_device *pdev) +static int __init ds1302_rtc_probe(struct platform_device *pdev) { - struct ds1302_rtc *rtc; - int ret; + struct rtc_device *rtc; /* Reset */ set_dp(get_dp() & ~(RTC_RESET | RTC_IODATA | RTC_SCLK)); @@ -200,37 +176,23 @@ static int __devinit ds1302_rtc_probe(struct platform_device *pdev) if (ds1302_readbyte(RTC_ADDR_RAM0) != 0x42) return -ENODEV; - rtc = kzalloc(sizeof(struct ds1302_rtc), GFP_KERNEL); - if (unlikely(!rtc)) - return -ENOMEM; - - spin_lock_init(&rtc->lock); - rtc->rtc_dev = rtc_device_register("ds1302", &pdev->dev, + rtc = rtc_device_register("ds1302", &pdev->dev, &ds1302_rtc_ops, THIS_MODULE); - if (IS_ERR(rtc->rtc_dev)) { - ret = PTR_ERR(rtc->rtc_dev); - goto out; - } + if (IS_ERR(rtc)) + return PTR_ERR(rtc); platform_set_drvdata(pdev, rtc); return 0; -out: - kfree(rtc); - return ret; } static int __devexit ds1302_rtc_remove(struct platform_device *pdev) { - struct ds1302_rtc *rtc = platform_get_drvdata(pdev); - - if (likely(rtc->rtc_dev)) - rtc_device_unregister(rtc->rtc_dev); + struct rtc_device *rtc = platform_get_drvdata(pdev); + rtc_device_unregister(rtc); platform_set_drvdata(pdev, NULL); - kfree(rtc); - return 0; } @@ -239,13 +201,12 @@ static struct platform_driver ds1302_platform_driver = { .name = DRV_NAME, .owner = THIS_MODULE, }, - .probe = ds1302_rtc_probe, - .remove = __devexit_p(ds1302_rtc_remove), + .remove = __exit_p(ds1302_rtc_remove), }; static int __init ds1302_rtc_init(void) { - return platform_driver_register(&ds1302_platform_driver); + return platform_driver_probe(&ds1302_platform_driver, ds1302_rtc_probe); } static void __exit ds1302_rtc_exit(void) diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c index d7310ad..e6ed540 100644 --- a/drivers/rtc/rtc-sh.c +++ b/drivers/rtc/rtc-sh.c @@ -29,7 +29,7 @@ #include <asm/rtc.h> #define DRV_NAME "sh-rtc" -#define DRV_VERSION "0.2.2" +#define DRV_VERSION "0.2.3" #define RTC_REG(r) ((r) * rtc_reg_size) @@ -215,7 +215,7 @@ static irqreturn_t sh_rtc_shared(int irq, void *dev_id) return IRQ_RETVAL(ret); } -static inline void sh_rtc_setpie(struct device *dev, unsigned int enable) +static int sh_rtc_irq_set_state(struct device *dev, int enable) { struct sh_rtc *rtc = dev_get_drvdata(dev); unsigned int tmp; @@ -225,17 +225,22 @@ static inline void sh_rtc_setpie(struct device *dev, unsigned int enable) tmp = readb(rtc->regbase + RCR2); if (enable) { + rtc->periodic_freq |= PF_KOU; tmp &= ~RCR2_PEF; /* Clear PES bit */ tmp |= (rtc->periodic_freq & ~PF_HP); /* Set PES2-0 */ - } else + } else { + rtc->periodic_freq &= ~PF_KOU; tmp &= ~(RCR2_PESMASK | RCR2_PEF); + } writeb(tmp, rtc->regbase + RCR2); spin_unlock_irq(&rtc->lock); + + return 0; } -static inline int sh_rtc_setfreq(struct device *dev, unsigned int freq) +static int sh_rtc_irq_set_freq(struct device *dev, int freq) { struct sh_rtc *rtc = dev_get_drvdata(dev); int tmp, ret = 0; @@ -278,10 +283,8 @@ static inline int sh_rtc_setfreq(struct device *dev, unsigned int freq) ret = -ENOTSUPP; } - if (ret == 0) { + if (ret == 0) rtc->periodic_freq |= tmp; - rtc->rtc_dev->irq_freq = freq; - } spin_unlock_irq(&rtc->lock); return ret; @@ -346,10 +349,6 @@ static int sh_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) unsigned int ret = 0; switch (cmd) { - case RTC_PIE_OFF: - case RTC_PIE_ON: - sh_rtc_setpie(dev, cmd == RTC_PIE_ON); - break; case RTC_AIE_OFF: case RTC_AIE_ON: sh_rtc_setaie(dev, cmd == RTC_AIE_ON); @@ -362,13 +361,6 @@ static int sh_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) rtc->periodic_freq |= PF_OXS; sh_rtc_setcie(dev, 1); break; - case RTC_IRQP_READ: - ret = put_user(rtc->rtc_dev->irq_freq, - (unsigned long __user *)arg); - break; - case RTC_IRQP_SET: - ret = sh_rtc_setfreq(dev, arg); - break; default: ret = -ENOIOCTLCMD; } @@ -602,28 +594,6 @@ static int sh_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *wkalrm) return 0; } -static int sh_rtc_irq_set_state(struct device *dev, int enabled) -{ - struct platform_device *pdev = to_platform_device(dev); - struct sh_rtc *rtc = platform_get_drvdata(pdev); - - if (enabled) { - rtc->periodic_freq |= PF_KOU; - return sh_rtc_ioctl(dev, RTC_PIE_ON, 0); - } else { - rtc->periodic_freq &= ~PF_KOU; - return sh_rtc_ioctl(dev, RTC_PIE_OFF, 0); - } -} - -static int sh_rtc_irq_set_freq(struct device *dev, int freq) -{ - if (!is_power_of_2(freq)) - return -EINVAL; - - return sh_rtc_ioctl(dev, RTC_IRQP_SET, freq); -} - static struct rtc_class_ops sh_rtc_ops = { .ioctl = sh_rtc_ioctl, .read_time = sh_rtc_read_time, @@ -635,7 +605,7 @@ static struct rtc_class_ops sh_rtc_ops = { .proc = sh_rtc_proc, }; -static int __devinit sh_rtc_probe(struct platform_device *pdev) +static int __init sh_rtc_probe(struct platform_device *pdev) { struct sh_rtc *rtc; struct resource *res; @@ -702,13 +672,6 @@ static int __devinit sh_rtc_probe(struct platform_device *pdev) clk_enable(rtc->clk); - rtc->rtc_dev = rtc_device_register("sh", &pdev->dev, - &sh_rtc_ops, THIS_MODULE); - if (IS_ERR(rtc->rtc_dev)) { - ret = PTR_ERR(rtc->rtc_dev); - goto err_unmap; - } - rtc->capabilities = RTC_DEF_CAPABILITIES; if (pdev->dev.platform_data) { struct sh_rtc_platform_info *pinfo = pdev->dev.platform_data; @@ -720,10 +683,6 @@ static int __devinit sh_rtc_probe(struct platform_device *pdev) rtc->capabilities |= pinfo->capabilities; } - rtc->rtc_dev->max_user_freq = 256; - - platform_set_drvdata(pdev, rtc); - if (rtc->carry_irq <= 0) { /* register shared periodic/carry/alarm irq */ ret = request_irq(rtc->periodic_irq, sh_rtc_shared, @@ -767,13 +726,26 @@ static int __devinit sh_rtc_probe(struct platform_device *pdev) } } + platform_set_drvdata(pdev, rtc); + /* everything disabled by default */ - rtc->periodic_freq = 0; - rtc->rtc_dev->irq_freq = 0; - sh_rtc_setpie(&pdev->dev, 0); + sh_rtc_irq_set_freq(&pdev->dev, 0); + sh_rtc_irq_set_state(&pdev->dev, 0); sh_rtc_setaie(&pdev->dev, 0); sh_rtc_setcie(&pdev->dev, 0); + rtc->rtc_dev = rtc_device_register("sh", &pdev->dev, + &sh_rtc_ops, THIS_MODULE); + if (IS_ERR(rtc->rtc_dev)) { + ret = PTR_ERR(rtc->rtc_dev); + free_irq(rtc->periodic_irq, rtc); + free_irq(rtc->carry_irq, rtc); + free_irq(rtc->alarm_irq, rtc); + goto err_unmap; + } + + rtc->rtc_dev->max_user_freq = 256; + /* reset rtc to epoch 0 if time is invalid */ if (rtc_read_time(rtc->rtc_dev, &r) < 0) { rtc_time_to_tm(0, &r); @@ -795,14 +767,13 @@ err_badres: return ret; } -static int __devexit sh_rtc_remove(struct platform_device *pdev) +static int __exit sh_rtc_remove(struct platform_device *pdev) { struct sh_rtc *rtc = platform_get_drvdata(pdev); - if (likely(rtc->rtc_dev)) - rtc_device_unregister(rtc->rtc_dev); + rtc_device_unregister(rtc->rtc_dev); + sh_rtc_irq_set_state(&pdev->dev, 0); - sh_rtc_setpie(&pdev->dev, 0); sh_rtc_setaie(&pdev->dev, 0); sh_rtc_setcie(&pdev->dev, 0); @@ -813,9 +784,8 @@ static int __devexit sh_rtc_remove(struct platform_device *pdev) free_irq(rtc->alarm_irq, rtc); } - release_resource(rtc->res); - iounmap(rtc->regbase); + release_resource(rtc->res); clk_disable(rtc->clk); clk_put(rtc->clk); @@ -867,13 +837,12 @@ static struct platform_driver sh_rtc_platform_driver = { .owner = THIS_MODULE, .pm = &sh_rtc_dev_pm_ops, }, - .probe = sh_rtc_probe, - .remove = __devexit_p(sh_rtc_remove), + .remove = __exit_p(sh_rtc_remove), }; static int __init sh_rtc_init(void) { - return platform_driver_register(&sh_rtc_platform_driver); + return platform_driver_probe(&sh_rtc_platform_driver, sh_rtc_probe); } static void __exit sh_rtc_exit(void) |