diff options
| author | Deepak Sikri <deepak.sikri@st.com> | 2012-03-23 15:02:29 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-23 16:58:38 -0700 |
| commit | cd0e08a8c9fb9c50d182d20e3bc52452c1ce1bfb (patch) | |
| tree | a05e21431c9f8812b3503dc6fe9c966743b0a4c4 /drivers/rtc/rtc-spear.c | |
| parent | 0e0cb892a8dac7c76321c899934705e5f0812574 (diff) | |
| download | linux-cd0e08a8c9fb9c50d182d20e3bc52452c1ce1bfb.tar.bz2 | |
rtc-spear: fix for balancing the enable_irq_wake in Power Mgmt
Handle the fix for unbalanced irq for the cases when enable_irq_wake
fails, and a warning related to same is displayed on the console. The
workaround is handled at the driver level.
Signed-off-by: Deepak Sikri <deepak.sikri@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc/rtc-spear.c')
| -rw-r--r-- | drivers/rtc/rtc-spear.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/rtc/rtc-spear.c b/drivers/rtc/rtc-spear.c index 19a28a671a8e..4f068e9ec0f8 100644 --- a/drivers/rtc/rtc-spear.c +++ b/drivers/rtc/rtc-spear.c @@ -80,6 +80,7 @@ struct spear_rtc_config { struct clk *clk; spinlock_t lock; void __iomem *ioaddr; + unsigned int irq_wake; }; static inline void spear_rtc_clear_interrupt(struct spear_rtc_config *config) @@ -463,9 +464,10 @@ static int spear_rtc_suspend(struct platform_device *pdev, pm_message_t state) int irq; irq = platform_get_irq(pdev, 0); - if (device_may_wakeup(&pdev->dev)) - enable_irq_wake(irq); - else { + if (device_may_wakeup(&pdev->dev)) { + if (!enable_irq_wake(irq)) + config->irq_wake = 1; + } else { spear_rtc_disable_interrupt(config); clk_disable(config->clk); } @@ -481,9 +483,12 @@ static int spear_rtc_resume(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); - if (device_may_wakeup(&pdev->dev)) - disable_irq_wake(irq); - else { + if (device_may_wakeup(&pdev->dev)) { + if (config->irq_wake) { + disable_irq_wake(irq); + config->irq_wake = 0; + } + } else { clk_enable(config->clk); spear_rtc_enable_interrupt(config); } |