Commit 23e53be9 authored by Wan ZongShun's avatar Wan ZongShun Committed by Linus Torvalds

rtc/nuc900: modify enable/disable IRQs and driver data setting location

This patch does two modifications:

(1) Adjust enable/disable IRQs location,enable it after rtc
    registration and disable it prior to unregistration.

(2) Put 'platform_set_drvdata(pdev, nuc900_rtc)' in front of rtc
    registration still be safety, though there is no need to do this, when
    I move enable irq after rtc registration, I think still put
    'platform_set_drvdata' before rtc registration that would be a good
    habit.
Signed-off-by: default avatarWan ZongShun <mcuos.com@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 84f20a69
...@@ -269,29 +269,30 @@ static int __devinit nuc900_rtc_probe(struct platform_device *pdev) ...@@ -269,29 +269,30 @@ static int __devinit nuc900_rtc_probe(struct platform_device *pdev)
goto fail2; goto fail2;
} }
nuc900_rtc->irq_num = platform_get_irq(pdev, 0); platform_set_drvdata(pdev, nuc900_rtc);
if (request_irq(nuc900_rtc->irq_num, nuc900_rtc_interrupt,
IRQF_DISABLED, "nuc900rtc", nuc900_rtc)) {
dev_err(&pdev->dev, "NUC900 RTC request irq failed\n");
err = -EBUSY;
goto fail3;
}
nuc900_rtc->rtcdev = rtc_device_register(pdev->name, &pdev->dev, nuc900_rtc->rtcdev = rtc_device_register(pdev->name, &pdev->dev,
&nuc900_rtc_ops, THIS_MODULE); &nuc900_rtc_ops, THIS_MODULE);
if (IS_ERR(nuc900_rtc->rtcdev)) { if (IS_ERR(nuc900_rtc->rtcdev)) {
dev_err(&pdev->dev, "rtc device register faild\n"); dev_err(&pdev->dev, "rtc device register faild\n");
err = PTR_ERR(nuc900_rtc->rtcdev); err = PTR_ERR(nuc900_rtc->rtcdev);
goto fail4; goto fail3;
} }
platform_set_drvdata(pdev, nuc900_rtc);
__raw_writel(__raw_readl(nuc900_rtc->rtc_reg + REG_RTC_TSSR) | MODE24, __raw_writel(__raw_readl(nuc900_rtc->rtc_reg + REG_RTC_TSSR) | MODE24,
nuc900_rtc->rtc_reg + REG_RTC_TSSR); nuc900_rtc->rtc_reg + REG_RTC_TSSR);
nuc900_rtc->irq_num = platform_get_irq(pdev, 0);
if (request_irq(nuc900_rtc->irq_num, nuc900_rtc_interrupt,
IRQF_DISABLED, "nuc900rtc", nuc900_rtc)) {
dev_err(&pdev->dev, "NUC900 RTC request irq failed\n");
err = -EBUSY;
goto fail4;
}
return 0; return 0;
fail4: free_irq(nuc900_rtc->irq_num, nuc900_rtc); fail4: rtc_device_unregister(nuc900_rtc->rtcdev);
fail3: iounmap(nuc900_rtc->rtc_reg); fail3: iounmap(nuc900_rtc->rtc_reg);
fail2: release_mem_region(res->start, resource_size(res)); fail2: release_mem_region(res->start, resource_size(res));
fail1: kfree(nuc900_rtc); fail1: kfree(nuc900_rtc);
...@@ -303,8 +304,8 @@ static int __devexit nuc900_rtc_remove(struct platform_device *pdev) ...@@ -303,8 +304,8 @@ static int __devexit nuc900_rtc_remove(struct platform_device *pdev)
struct nuc900_rtc *nuc900_rtc = platform_get_drvdata(pdev); struct nuc900_rtc *nuc900_rtc = platform_get_drvdata(pdev);
struct resource *res; struct resource *res;
rtc_device_unregister(nuc900_rtc->rtcdev);
free_irq(nuc900_rtc->irq_num, nuc900_rtc); free_irq(nuc900_rtc->irq_num, nuc900_rtc);
rtc_device_unregister(nuc900_rtc->rtcdev);
iounmap(nuc900_rtc->rtc_reg); iounmap(nuc900_rtc->rtc_reg);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0); res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
......
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