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rtc: omap: fix class-device registration 

Make sure not to register the class device until after the device has
been configured.

Currently, the device is not fully configured (e.g. 24-hour mode) when
the class device is registered, something which involves driver
callbacks for example to read the current time.

Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Benot Cousson <bcousson@baylibre.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Keerthy J <j-keerthy@ti.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Johan Hovold 2014-12-10 15:52:43 -08:00 committed by Linus Torvalds
parent 437b37a66a
commit 4390ce002b
1 changed files with 23 additions and 23 deletions
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46
drivers/rtc/rtc-omap.c
View File

@ -413,16 +413,6 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
rtc_writel(KICK1_VALUE, OMAP_RTC_KICK1_REG); rtc_writel(KICK1_VALUE, OMAP_RTC_KICK1_REG);
} }
device_init_wakeup(&pdev->dev, true);
rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
&omap_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc)) {
ret = PTR_ERR(rtc);
goto err;
}
platform_set_drvdata(pdev, rtc);
/* /*
* disable interrupts * disable interrupts
* *
@ -446,19 +436,6 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
if (reg & (u8) OMAP_RTC_STATUS_ALARM) if (reg & (u8) OMAP_RTC_STATUS_ALARM)
rtc_write(OMAP_RTC_STATUS_ALARM, OMAP_RTC_STATUS_REG); rtc_write(OMAP_RTC_STATUS_ALARM, OMAP_RTC_STATUS_REG);
/* handle periodic and alarm irqs */
ret = devm_request_irq(&pdev->dev, omap_rtc_timer, rtc_irq, 0,
dev_name(&rtc->dev), rtc);
if (ret)
goto err;
if (omap_rtc_timer != omap_rtc_alarm) {
ret = devm_request_irq(&pdev->dev, omap_rtc_alarm, rtc_irq, 0,
dev_name(&rtc->dev), rtc);
if (ret)
goto err;
}
/* On boards with split power, RTC_ON_NOFF won't reset the RTC */ /* On boards with split power, RTC_ON_NOFF won't reset the RTC */
reg = rtc_read(OMAP_RTC_CTRL_REG); reg = rtc_read(OMAP_RTC_CTRL_REG);
if (reg & (u8) OMAP_RTC_CTRL_STOP) if (reg & (u8) OMAP_RTC_CTRL_STOP)
@ -488,6 +465,29 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
if (reg != new_ctrl) if (reg != new_ctrl)
rtc_write(new_ctrl, OMAP_RTC_CTRL_REG); rtc_write(new_ctrl, OMAP_RTC_CTRL_REG);
device_init_wakeup(&pdev->dev, true);
rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
&omap_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc)) {
ret = PTR_ERR(rtc);
goto err;
}
platform_set_drvdata(pdev, rtc);
/* handle periodic and alarm irqs */
ret = devm_request_irq(&pdev->dev, omap_rtc_timer, rtc_irq, 0,
dev_name(&rtc->dev), rtc);
if (ret)
goto err;
if (omap_rtc_timer != omap_rtc_alarm) {
ret = devm_request_irq(&pdev->dev, omap_rtc_alarm, rtc_irq, 0,
dev_name(&rtc->dev), rtc);
if (ret)
goto err;
}
return 0; return 0;
err: err: