diff options
| author | Guo Zeng <guo.zeng@csr.com> | 2014-12-10 15:52:24 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-16 06:59:29 -0800 |
| commit | caa2e48c4da0dd32c5abd8271075c666d2db866a (patch) | |
| tree | 1c49641fa594638e79ca987ca912f29b18b8bbbc | |
| parent | c3b70f0bbb6a883f4afa639286043d3f71fbbddf (diff) | |
drivers/rtc/rtc-sirfsoc.c: move hardware initilization earlier in probe
commit 0e95325525c4383565cea4f402f15a3113162d05 upstream.
Move rtc register to be later than hardware initialization. The reason
is that devm_rtc_device_register() will do read_time() which is a
callback accessing hardware. This sometimes causes a hang in the
hardware related callback.
Signed-off-by: Guo Zeng <guo.zeng@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/rtc/rtc-sirfsoc.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/rtc/rtc-sirfsoc.c b/drivers/rtc/rtc-sirfsoc.c index 3eb3642ae299..d2b1ab3162c2 100644 --- a/drivers/rtc/rtc-sirfsoc.c +++ b/drivers/rtc/rtc-sirfsoc.c @@ -290,14 +290,6 @@ static int sirfsoc_rtc_probe(struct platform_device *pdev) rtc_div = ((32768 / RTC_HZ) / 2) - 1; sirfsoc_rtc_iobrg_writel(rtc_div, rtcdrv->rtc_base + RTC_DIV); - rtcdrv->rtc = devm_rtc_device_register(&pdev->dev, pdev->name, - &sirfsoc_rtc_ops, THIS_MODULE); - if (IS_ERR(rtcdrv->rtc)) { - err = PTR_ERR(rtcdrv->rtc); - dev_err(&pdev->dev, "can't register RTC device\n"); - return err; - } - /* 0x3 -> RTC_CLK */ sirfsoc_rtc_iobrg_writel(SIRFSOC_RTC_CLK, rtcdrv->rtc_base + RTC_CLOCK_SWITCH); @@ -312,6 +304,14 @@ static int sirfsoc_rtc_probe(struct platform_device *pdev) rtcdrv->overflow_rtc = sirfsoc_rtc_iobrg_readl(rtcdrv->rtc_base + RTC_SW_VALUE); + rtcdrv->rtc = devm_rtc_device_register(&pdev->dev, pdev->name, + &sirfsoc_rtc_ops, THIS_MODULE); + if (IS_ERR(rtcdrv->rtc)) { + err = PTR_ERR(rtcdrv->rtc); + dev_err(&pdev->dev, "can't register RTC device\n"); + return err; + } + rtcdrv->irq = platform_get_irq(pdev, 0); err = devm_request_irq( &pdev->dev, |