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Input: spear_keyboard - fix clock handling during suspend/resume

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SPEAr keyboard should normally disable clock during suspend and enable it
during resume.

For cases where it is expected to act as a wakeup source the clock can
remain in the same state i.e. kept enabled if it is being used.

Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Shiraz Hashim 2012-07-13 00:11:10 -07:00 • committed by Dmitry Torokhov
parent 9a932145f2
commit 53fe628558
1 changed files with 10 additions and 8 deletions
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18
drivers/input/keyboard/spear-keyboard.c
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@ -320,11 +320,12 @@ static int spear_kbd_suspend(struct device *dev)
mutex_lock(&input_dev->mutex); mutex_lock(&input_dev->mutex);
if (input_dev->users) if (device_may_wakeup(&pdev->dev)) {
clk_enable(kbd->clk);
if (device_may_wakeup(&pdev->dev))
enable_irq_wake(kbd->irq); enable_irq_wake(kbd->irq);
} else {
if (input_dev->users)
clk_disable(kbd->clk);
}
mutex_unlock(&input_dev->mutex); mutex_unlock(&input_dev->mutex);
@ -339,11 +340,12 @@ static int spear_kbd_resume(struct device *dev)
mutex_lock(&input_dev->mutex); mutex_lock(&input_dev->mutex);
if (device_may_wakeup(&pdev->dev)) if (device_may_wakeup(&pdev->dev)) {
disable_irq_wake(kbd->irq); disable_irq_wake(kbd->irq);
} else {
if (input_dev->users) if (input_dev->users)
clk_enable(kbd->clk); clk_enable(kbd->clk);
}
mutex_unlock(&input_dev->mutex); mutex_unlock(&input_dev->mutex);