diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2012-07-30 14:41:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-30 17:25:17 -0700 |
| commit | 8384dfeb759acac48ea24b81f134cac3cbb3e6fc (patch) | |
| tree | ef92b0e32ee3af97196ab3245623fbe5f0dc8c9e /drivers/rtc/rtc-coh901331.c | |
| parent | 261eba73353edd48b0c0cb7aad59553dfc712ebc (diff) | |
| download | lwn-8384dfeb759acac48ea24b81f134cac3cbb3e6fc.tar.gz lwn-8384dfeb759acac48ea24b81f134cac3cbb3e6fc.zip | |
drivers/rtc/rtc-coh901331.c: use clk_prepare/unprepare
Make sure we prepare/unprepare the clock for the COH901331 RTC driver as
is required by the clk API especially if you use common clock.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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>
Diffstat (limited to 'drivers/rtc/rtc-coh901331.c')
| -rw-r--r-- | drivers/rtc/rtc-coh901331.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/rtc/rtc-coh901331.c b/drivers/rtc/rtc-coh901331.c index a5b8a0c4ea84..58665029d6f3 100644 --- a/drivers/rtc/rtc-coh901331.c +++ b/drivers/rtc/rtc-coh901331.c @@ -157,6 +157,7 @@ static int __exit coh901331_remove(struct platform_device *pdev) if (rtap) { free_irq(rtap->irq, rtap); rtc_device_unregister(rtap->rtc); + clk_unprepare(rtap->clk); clk_put(rtap->clk); iounmap(rtap->virtbase); release_mem_region(rtap->phybase, rtap->physize); @@ -213,10 +214,10 @@ static int __init coh901331_probe(struct platform_device *pdev) } /* We enable/disable the clock only to assure it works */ - ret = clk_enable(rtap->clk); + ret = clk_prepare_enable(rtap->clk); if (ret) { dev_err(&pdev->dev, "could not enable clock\n"); - goto out_no_clk_enable; + goto out_no_clk_prepenable; } clk_disable(rtap->clk); @@ -232,7 +233,8 @@ static int __init coh901331_probe(struct platform_device *pdev) out_no_rtc: platform_set_drvdata(pdev, NULL); - out_no_clk_enable: + clk_unprepare(rtap->clk); + out_no_clk_prepenable: clk_put(rtap->clk); out_no_clk: free_irq(rtap->irq, rtap); @@ -265,6 +267,7 @@ static int coh901331_suspend(struct platform_device *pdev, pm_message_t state) writel(0, rtap->virtbase + COH901331_IRQ_MASK); clk_disable(rtap->clk); } + clk_unprepare(rtap->clk); return 0; } @@ -272,6 +275,7 @@ static int coh901331_resume(struct platform_device *pdev) { struct coh901331_port *rtap = dev_get_drvdata(&pdev->dev); + clk_prepare(rtap->clk); if (device_may_wakeup(&pdev->dev)) { disable_irq_wake(rtap->irq); } else { @@ -293,6 +297,7 @@ static void coh901331_shutdown(struct platform_device *pdev) clk_enable(rtap->clk); writel(0, rtap->virtbase + COH901331_IRQ_MASK); clk_disable(rtap->clk); + clk_unprepare(rtap->clk); } static struct platform_driver coh901331_driver = { |