diff options
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-mc13783.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/drivers/rtc/rtc-mc13783.c b/drivers/rtc/rtc-mc13783.c index 0a978a0e40fc..6a36201178a8 100644 --- a/drivers/rtc/rtc-mc13783.c +++ b/drivers/rtc/rtc-mc13783.c @@ -169,6 +169,7 @@ static int __devinit mc13783_rtc_probe(struct platform_device *pdev) { int ret; struct mc13783_rtc *priv; + int rtcrst_pending; priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) @@ -177,8 +178,6 @@ static int __devinit mc13783_rtc_probe(struct platform_device *pdev) priv->mc13783 = dev_get_drvdata(pdev->dev.parent); platform_set_drvdata(pdev, priv); - priv->valid = 1; - mc13783_lock(priv->mc13783); ret = mc13783_irq_request(priv->mc13783, MC13783_IRQ_RTCRST, @@ -186,33 +185,37 @@ static int __devinit mc13783_rtc_probe(struct platform_device *pdev) if (ret) goto err_reset_irq_request; + ret = mc13783_irq_status(priv->mc13783, MC13783_IRQ_RTCRST, + NULL, &rtcrst_pending); + if (ret) + goto err_reset_irq_status; + + priv->valid = !rtcrst_pending; + ret = mc13783_irq_request_nounmask(priv->mc13783, MC13783_IRQ_1HZ, mc13783_rtc_update_handler, DRIVER_NAME, priv); if (ret) goto err_update_irq_request; - mc13783_unlock(priv->mc13783); - priv->rtc = rtc_device_register(pdev->name, &pdev->dev, &mc13783_rtc_ops, THIS_MODULE); - if (IS_ERR(priv->rtc)) { ret = PTR_ERR(priv->rtc); - mc13783_lock(priv->mc13783); - mc13783_irq_free(priv->mc13783, MC13783_IRQ_1HZ, priv); err_update_irq_request: +err_reset_irq_status: + mc13783_irq_free(priv->mc13783, MC13783_IRQ_RTCRST, priv); err_reset_irq_request: - mc13783_unlock(priv->mc13783); - platform_set_drvdata(pdev, NULL); kfree(priv); } + mc13783_unlock(priv->mc13783); + return ret; } @@ -220,10 +223,10 @@ static int __devexit mc13783_rtc_remove(struct platform_device *pdev) { struct mc13783_rtc *priv = platform_get_drvdata(pdev); - rtc_device_unregister(priv->rtc); - mc13783_lock(priv->mc13783); + rtc_device_unregister(priv->rtc); + mc13783_irq_free(priv->mc13783, MC13783_IRQ_1HZ, priv); mc13783_irq_free(priv->mc13783, MC13783_IRQ_RTCRST, priv); |