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path: root/drivers/input/keyboard/matrix_keypad.c
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Diffstat (limited to 'drivers/input/keyboard/matrix_keypad.c')
-rw-r--r--drivers/input/keyboard/matrix_keypad.c34
1 files changed, 26 insertions, 8 deletions
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
index 34f4a29d4973..b443e088fd3c 100644
--- a/drivers/input/keyboard/matrix_keypad.c
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -22,6 +22,7 @@
#include <linux/module.h>
#include <linux/gpio.h>
#include <linux/input/matrix_keypad.h>
+#include <linux/slab.h>
struct matrix_keypad {
const struct matrix_keypad_platform_data *pdata;
@@ -29,11 +30,13 @@ struct matrix_keypad {
unsigned short *keycodes;
unsigned int row_shift;
+ DECLARE_BITMAP(disabled_gpios, MATRIX_MAX_ROWS);
+
uint32_t last_key_state[MATRIX_MAX_COLS];
struct delayed_work work;
+ spinlock_t lock;
bool scan_pending;
bool stopped;
- spinlock_t lock;
};
/*
@@ -222,9 +225,16 @@ static int matrix_keypad_suspend(struct device *dev)
matrix_keypad_stop(keypad->input_dev);
- if (device_may_wakeup(&pdev->dev))
- for (i = 0; i < pdata->num_row_gpios; i++)
- enable_irq_wake(gpio_to_irq(pdata->row_gpios[i]));
+ if (device_may_wakeup(&pdev->dev)) {
+ for (i = 0; i < pdata->num_row_gpios; i++) {
+ if (!test_bit(i, keypad->disabled_gpios)) {
+ unsigned int gpio = pdata->row_gpios[i];
+
+ if (enable_irq_wake(gpio_to_irq(gpio)) == 0)
+ __set_bit(i, keypad->disabled_gpios);
+ }
+ }
+ }
return 0;
}
@@ -236,9 +246,15 @@ static int matrix_keypad_resume(struct device *dev)
const struct matrix_keypad_platform_data *pdata = keypad->pdata;
int i;
- if (device_may_wakeup(&pdev->dev))
- for (i = 0; i < pdata->num_row_gpios; i++)
- disable_irq_wake(gpio_to_irq(pdata->row_gpios[i]));
+ if (device_may_wakeup(&pdev->dev)) {
+ for (i = 0; i < pdata->num_row_gpios; i++) {
+ if (test_and_clear_bit(i, keypad->disabled_gpios)) {
+ unsigned int gpio = pdata->row_gpios[i];
+
+ disable_irq_wake(gpio_to_irq(gpio));
+ }
+ }
+ }
matrix_keypad_start(keypad->input_dev);
@@ -358,7 +374,9 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev)
input_dev->name = pdev->name;
input_dev->id.bustype = BUS_HOST;
input_dev->dev.parent = &pdev->dev;
- input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+ input_dev->evbit[0] = BIT_MASK(EV_KEY);
+ if (!pdata->no_autorepeat)
+ input_dev->evbit[0] |= BIT_MASK(EV_REP);
input_dev->open = matrix_keypad_start;
input_dev->close = matrix_keypad_stop;