The patch titled drivers/rtc/rtc-stmp3xxx.c: remove UIE handlers has been removed from the -mm tree. Its filename was drivers-rtc-rtc-stmp3xxxc-remove-uie-handlers.patch This patch was dropped because an updated version will be merged The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: drivers/rtc/rtc-stmp3xxx.c: remove UIE handlers From: Wolfram Sang <w.sang@xxxxxxxxxxxxxx> The RTC core handles UIE since 6610e08 (RTC: Rework RTC code to use timerqueue for events), so remove the specific interrupt in this driver. To make it work at all, enable interrupts in set_alarm() if needed. Drop IRQF_DISABLED which is deprecated, while we are here. Finally, add my copyright after all these changes. Signed-off-by: Wolfram Sang <w.sang@xxxxxxxxxxxxxx> Tested-by: Shawn Guo <shawn.guo@xxxxxxxxxxxxx> Cc: John Stultz <johnstul@xxxxxxxxxx> Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/rtc/rtc-stmp3xxx.c | 57 ++++++++++------------------------- 1 file changed, 17 insertions(+), 40 deletions(-) diff -puN drivers/rtc/rtc-stmp3xxx.c~drivers-rtc-rtc-stmp3xxxc-remove-uie-handlers drivers/rtc/rtc-stmp3xxx.c --- a/drivers/rtc/rtc-stmp3xxx.c~drivers-rtc-rtc-stmp3xxxc-remove-uie-handlers +++ a/drivers/rtc/rtc-stmp3xxx.c @@ -6,6 +6,7 @@ * * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. + * Copyright 2011 Wolfram Sang, Pengutronix e.K. */ /* @@ -33,7 +34,6 @@ #define STMP3XXX_RTC_CTRL_ALARM_IRQ_EN 0x00000001 #define STMP3XXX_RTC_CTRL_ONEMSEC_IRQ_EN 0x00000002 #define STMP3XXX_RTC_CTRL_ALARM_IRQ 0x00000004 -#define STMP3XXX_RTC_CTRL_ONEMSEC_IRQ 0x00000008 #define STMP3XXX_RTC_STAT 0x10 #define STMP3XXX_RTC_STAT_STALE_SHIFT 16 @@ -52,9 +52,8 @@ struct stmp3xxx_rtc_data { struct rtc_device *rtc; - unsigned irq_count; void __iomem *io; - int irq_alarm, irq_1msec; + int irq_alarm; }; static void stmp3xxx_wait_time(struct stmp3xxx_rtc_data *rtc_data) @@ -92,31 +91,16 @@ static int stmp3xxx_rtc_set_mmss(struct static irqreturn_t stmp3xxx_rtc_interrupt(int irq, void *dev_id) { struct stmp3xxx_rtc_data *rtc_data = dev_get_drvdata(dev_id); - u32 status; - u32 events = 0; - - status = readl(rtc_data->io + STMP3XXX_RTC_CTRL) & - (STMP3XXX_RTC_CTRL_ALARM_IRQ | STMP3XXX_RTC_CTRL_ONEMSEC_IRQ); + u32 status = readl(rtc_data->io + STMP3XXX_RTC_CTRL); if (status & STMP3XXX_RTC_CTRL_ALARM_IRQ) { writel(STMP3XXX_RTC_CTRL_ALARM_IRQ, rtc_data->io + STMP3XXX_RTC_CTRL_CLR); - events |= RTC_AF | RTC_IRQF; + rtc_update_irq(rtc_data->rtc, 1, RTC_AF | RTC_IRQF); + return IRQ_HANDLED; } - if (status & STMP3XXX_RTC_CTRL_ONEMSEC_IRQ) { - writel(STMP3XXX_RTC_CTRL_ONEMSEC_IRQ, - rtc_data->io + STMP3XXX_RTC_CTRL_CLR); - if (++rtc_data->irq_count % 1000 == 0) { - events |= RTC_UF | RTC_IRQF; - rtc_data->irq_count = 0; - } - } - - if (events) - rtc_update_irq(rtc_data->rtc, 1, events); - - return IRQ_HANDLED; + return IRQ_NONE; } static int stmp3xxx_alarm_irq_enable(struct device *dev, unsigned int enabled) @@ -154,6 +138,9 @@ static int stmp3xxx_rtc_set_alarm(struct rtc_tm_to_time(&alm->time, &t); writel(t, rtc_data->io + STMP3XXX_RTC_ALARM); + + stmp3xxx_alarm_irq_enable(dev, alm->enabled); + return 0; } @@ -173,10 +160,9 @@ static int stmp3xxx_rtc_remove(struct pl if (!rtc_data) return 0; - writel(STMP3XXX_RTC_CTRL_ONEMSEC_IRQ_EN | STMP3XXX_RTC_CTRL_ALARM_IRQ_EN, + writel(STMP3XXX_RTC_CTRL_ALARM_IRQ_EN, rtc_data->io + STMP3XXX_RTC_CTRL_CLR); free_irq(rtc_data->irq_alarm, &pdev->dev); - free_irq(rtc_data->irq_1msec, &pdev->dev); rtc_device_unregister(rtc_data->rtc); platform_set_drvdata(pdev, NULL); iounmap(rtc_data->io); @@ -210,7 +196,6 @@ static int stmp3xxx_rtc_probe(struct pla } rtc_data->irq_alarm = platform_get_irq(pdev, 0); - rtc_data->irq_1msec = platform_get_irq(pdev, 1); if (!(readl(STMP3XXX_RTC_STAT + rtc_data->io) & STMP3XXX_RTC_STAT_RTC_PRESENT)) { @@ -227,6 +212,9 @@ static int stmp3xxx_rtc_probe(struct pla STMP3XXX_RTC_PERSISTENT0_ALARM_WAKE, rtc_data->io + STMP3XXX_RTC_PERSISTENT0_CLR); + writel(STMP3XXX_RTC_CTRL_ONEMSEC_IRQ_EN | STMP3XXX_RTC_CTRL_ALARM_IRQ_EN, + rtc_data->io + STMP3XXX_RTC_CTRL_CLR); + rtc_data->rtc = rtc_device_register(pdev->name, &pdev->dev, &stmp3xxx_rtc_ops, THIS_MODULE); if (IS_ERR(rtc_data->rtc)) { @@ -234,29 +222,17 @@ static int stmp3xxx_rtc_probe(struct pla goto out_remap; } - rtc_data->irq_count = 0; - err = request_irq(rtc_data->irq_alarm, stmp3xxx_rtc_interrupt, - IRQF_DISABLED, "RTC alarm", &pdev->dev); + err = request_irq(rtc_data->irq_alarm, stmp3xxx_rtc_interrupt, 0, + "RTC alarm", &pdev->dev); if (err) { dev_err(&pdev->dev, "Cannot claim IRQ%d\n", rtc_data->irq_alarm); goto out_irq_alarm; } - err = request_irq(rtc_data->irq_1msec, stmp3xxx_rtc_interrupt, - IRQF_DISABLED, "RTC tick", &pdev->dev); - if (err) { - dev_err(&pdev->dev, "Cannot claim IRQ%d\n", - rtc_data->irq_1msec); - goto out_irq1; - } return 0; -out_irq1: - free_irq(rtc_data->irq_alarm, &pdev->dev); out_irq_alarm: - writel(STMP3XXX_RTC_CTRL_ONEMSEC_IRQ_EN | STMP3XXX_RTC_CTRL_ALARM_IRQ_EN, - rtc_data->io + STMP3XXX_RTC_CTRL_CLR); rtc_device_unregister(rtc_data->rtc); out_remap: platform_set_drvdata(pdev, NULL); @@ -313,5 +289,6 @@ module_init(stmp3xxx_rtc_init); module_exit(stmp3xxx_rtc_exit); MODULE_DESCRIPTION("STMP3xxx RTC Driver"); -MODULE_AUTHOR("dmitry pervushin <dpervushin@xxxxxxxxxxxxxxxxx>"); +MODULE_AUTHOR("dmitry pervushin <dpervushin@xxxxxxxxxxxxxxxxx> and " + "Wolfram Sang <w.sang@xxxxxxxxxxxxxx>"); MODULE_LICENSE("GPL"); _ Patches currently in -mm which might be from w.sang@xxxxxxxxxxxxxx are linux-next.patch rtc-driver-for-pt7c4338-chip.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html