From: Deepak Sikri <deepak.sikri@xxxxxx>
This patch handles 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@xxxxxx>
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
drivers/input/keyboard/spear-keyboard.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/input/keyboard/spear-keyboard.c b/drivers/input/keyboard/spear-keyboard.c
index 9792924..b8784df 100644
--- a/drivers/input/keyboard/spear-keyboard.c
+++ b/drivers/input/keyboard/spear-keyboard.c
@@ -60,6 +60,7 @@ struct spear_kbd {
struct clk *clk;
unsigned int irq;
unsigned int mode;
+ unsigned int irq_wake;
unsigned short last_key;
unsigned short keycodes[NUM_ROWS * NUM_COLS];
bool rep;
@@ -327,7 +328,8 @@ static int spear_kbd_suspend(struct device *dev)
mode_ctl_reg = readl_relaxed(kbd->io_base + MODE_CTL_REG);
if (device_may_wakeup(&pdev->dev)) {
- enable_irq_wake(kbd->irq);
+ if (!enable_irq_wake(kbd->irq))
+ kbd->irq_wake = 1;
/*
* reprogram the keyboard operating frequency as on some
@@ -373,7 +375,10 @@ static int spear_kbd_resume(struct device *dev)
mutex_lock(&input_dev->mutex);
if (device_may_wakeup(&pdev->dev)) {
- disable_irq_wake(kbd->irq);
+ if (kbd->irq_wake) {
+ kbd->irq_wake = 0;
+ disable_irq_wake(kbd->irq);
+ }
} else {
if (input_dev->users)
clk_enable(kbd->clk);
--
1.7.12.rc2.18.g61b472e
--
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