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path: root/drivers/rtc/rtc-twl.c
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Diffstat (limited to 'drivers/rtc/rtc-twl.c')
-rw-r--r--drivers/rtc/rtc-twl.c60
1 files changed, 24 insertions, 36 deletions
diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c
index 9a81f778d6b2..20687d55e7a7 100644
--- a/drivers/rtc/rtc-twl.c
+++ b/drivers/rtc/rtc-twl.c
@@ -362,14 +362,6 @@ static irqreturn_t twl_rtc_interrupt(int irq, void *rtc)
int res;
u8 rd_reg;
-#ifdef CONFIG_LOCKDEP
- /* WORKAROUND for lockdep forcing IRQF_DISABLED on us, which
- * we don't want and can't tolerate. Although it might be
- * friendlier not to borrow this thread context...
- */
- local_irq_enable();
-#endif
-
res = twl_rtc_read_u8(&rd_reg, REG_RTC_STATUS_REG);
if (res)
goto out;
@@ -428,24 +420,12 @@ static struct rtc_class_ops twl_rtc_ops = {
static int __devinit twl_rtc_probe(struct platform_device *pdev)
{
struct rtc_device *rtc;
- int ret = 0;
+ int ret = -EINVAL;
int irq = platform_get_irq(pdev, 0);
u8 rd_reg;
if (irq <= 0)
- return -EINVAL;
-
- rtc = rtc_device_register(pdev->name,
- &pdev->dev, &twl_rtc_ops, THIS_MODULE);
- if (IS_ERR(rtc)) {
- ret = PTR_ERR(rtc);
- dev_err(&pdev->dev, "can't register RTC device, err %ld\n",
- PTR_ERR(rtc));
- goto out0;
-
- }
-
- platform_set_drvdata(pdev, rtc);
+ goto out1;
ret = twl_rtc_read_u8(&rd_reg, REG_RTC_STATUS_REG);
if (ret < 0)
@@ -462,14 +442,6 @@ static int __devinit twl_rtc_probe(struct platform_device *pdev)
if (ret < 0)
goto out1;
- ret = request_irq(irq, twl_rtc_interrupt,
- IRQF_TRIGGER_RISING,
- dev_name(&rtc->dev), rtc);
- if (ret < 0) {
- dev_err(&pdev->dev, "IRQ is not free.\n");
- goto out1;
- }
-
if (twl_class_is_6030()) {
twl6030_interrupt_unmask(TWL6030_RTC_INT_MASK,
REG_INT_MSK_LINE_A);
@@ -480,28 +452,44 @@ static int __devinit twl_rtc_probe(struct platform_device *pdev)
/* Check RTC module status, Enable if it is off */
ret = twl_rtc_read_u8(&rd_reg, REG_RTC_CTRL_REG);
if (ret < 0)
- goto out2;
+ goto out1;
if (!(rd_reg & BIT_RTC_CTRL_REG_STOP_RTC_M)) {
dev_info(&pdev->dev, "Enabling TWL-RTC.\n");
rd_reg = BIT_RTC_CTRL_REG_STOP_RTC_M;
ret = twl_rtc_write_u8(rd_reg, REG_RTC_CTRL_REG);
if (ret < 0)
- goto out2;
+ goto out1;
}
/* init cached IRQ enable bits */
ret = twl_rtc_read_u8(&rtc_irq_bits, REG_RTC_INTERRUPTS_REG);
if (ret < 0)
+ goto out1;
+
+ rtc = rtc_device_register(pdev->name,
+ &pdev->dev, &twl_rtc_ops, THIS_MODULE);
+ if (IS_ERR(rtc)) {
+ ret = PTR_ERR(rtc);
+ dev_err(&pdev->dev, "can't register RTC device, err %ld\n",
+ PTR_ERR(rtc));
+ goto out1;
+ }
+
+ ret = request_threaded_irq(irq, NULL, twl_rtc_interrupt,
+ IRQF_TRIGGER_RISING,
+ dev_name(&rtc->dev), rtc);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "IRQ is not free.\n");
goto out2;
+ }
- return ret;
+ platform_set_drvdata(pdev, rtc);
+ return 0;
out2:
- free_irq(irq, rtc);
-out1:
rtc_device_unregister(rtc);
-out0:
+out1:
return ret;
}